HomeMy WebLinkAbout2010 04 12 Consent 203 Approve Resolution Number 2010-13 Adopting the Seminole County Local Mitigation Strategy COMMISSION AGENDA
CONSENT X
ITEM 203 INFORMATIONAL -
PUBLIC HEARING -
REGULAR
April 12, 2010 MGR /DEPT ,/
Meeting Authorization
REQUEST: Public Works Department requesting the City Commission Approve
Resolution Number 2010 -13 adopting the Seminole County Local Mitigation
Strategy.
SYNOPIS: The purpose of this item is to request the Commission adopt the Seminole County
Local Mitigation Strategy document which is required for the City to be eligible
for post disaster assistance and also future mitigation grants.
CONSIDERATIONS:
• The Local Mitigation Strategy was an initiative implemented in 1999 to meet
regulatory requirements for disaster assistance.
• The City Commission has previously approved the initial Seminole County
Local Mitigation Strategy Plan on September 25, 2000 and an updated version on
February 14, 2005.
• The five year update is complete and ready for adoption by all participating
entities which includes Seminole County and the seven municipalities.
• The City has completed several projects funded through the Hazard Mitigation
Grant including window protection on the Fire Stations and Senior Center.
• The Local Mitigation Strategy Cover Sheet, Table of Contents, and Executive
Summary are attached. A full copy of the Local Mitigation Strategy is available at
the City Clerk's office and also on the City webpage.
04121 0_Consent 203 LMS Adoption
April 12, 2010
Consent Agenda Item 203
Page 2
FISCAL IMPACT:
No funding is requested. Future projects under the Hazard Mitigation Grant
program are typically 75% Federal funds and 25% local funds. Disaster assistance is
typically funded at 75% Federal /12.5% State /12.5% Local.
COMMUNICATION EFFORTS:
Quarterly meetings are held with the participants where staff has the opportunity
to discuss ongoing activities, review potential funding and consider modifications to the
priority list on an as needed basis.
RECOMMENDATION:
It is recommended that the City Commission approve Resolution 2010 -13 adopting the
Seminole County Local Mitigation Strategy.
ATTACHMENTS:
1. Resolution # 2010 -13
2. Seminole County Local Mitigation Strategy Executive summary
RESOLUTION NO. 2010 -13
A RESOLUTION OF THE CITY COMMISSION OF THE CITY OF
WINTER SPRINGS, FLORIDA ADOPTING THE SEMINOLE
COUNTY LOCAL MITIGATION STRATEGY PLAN
WHEREAS, the City Commission of Winter Springs is charged with the duty of
protecting the health, safety, and welfare of its citizens; and
WHEREAS, the communities of Seminole county are vulnerable to a wide range of
natural and technological disasters, as demonstrated by the very high human and economic
costs of events that have impacted the State in the past decade; and
WHEREAS, the City adopted the initial Local Mitigation Strategy on September 25,
2000 and the updated Local Mitigation Strategy Plan on plan February 14, 2005 which
identified and prioritized hazardous and susceptible structures and developed programs that
reduced the City's vulnerability to disasters; and
WHEREAS, the Local Mitigation Strategy document now needs to be updated again
to comply wit the Federal Hazard Mitigation Planning Standards contained in 44 CFR201-
206(b) — (d); and
WHEREAS, adoption of this document by the City will provide for continued grant
funding for Seminole county and its municipalities' local mitigation initiatives, as approved
through the Federal Emergency Management Agency (FEMA);
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COMMISSION
OF THE CITY OF WINTER SPRINGS, FLORIDA, THAT:
The updated Local Mitigation Strategy document for 2010 through 2015 is hereby
adopted.
Passed and adopted this 12th day of April, 2010.
CITY OF WINTER SPRINGS, FLORIDA
ATTEST:
JOHN F. BUSH, MAYOR
ANDREA LORENZO - LUACES, MMC
CITY CLERK
Local Mitigation Strategy
for
Seminole County
and its
Municipalities
46
SEMINOLE COUNTY
FLOKH).a S NATUKAI. CI k4Ce
Seminole County Local Mitigation Strategy (LMS)
Table of Contents
Executive Summary... 3
General... 4
Introduction 4
Purpose... 4
Planning Process 4
Risk Assessment 9
Hazards 9
Vulnerability 35
Assessing Vulnerabilities 35
Mitigation Goals 48
Mitigation Actions 48
National Flood Insurance Program (NFIP) Compliance 52
Implementation 54
Plan Maintenance 56
LMS Monitoring and Evaluation... 56
LMS Updates 57
Implementation through Existing Plans and Programs 57
Appendices
LMS Project Priority List
LMS Resolution
LMS Working Group By-Laws
LMS Working Group Operating Procedures
LMS Working Group List
Mitigation Project Cost-Benefit-Analysis Worksheet
TAOS — Hazards Analysis
Mitigation 20 / 20 Reports
Jurisdictional Plans
Page 2
JEkliNOLE Li.->tIVTY
Seminole County Local Mitigation Strategy (LMS)
1. Executive Summary
Seminole County is threatened by a number of different types of natural, technological and
human - caused hazards. These hazards endanger the health and safety of the population of the
community, jeopardize its economic vitality, and imperil the quality of its environment. Because
of the importance of avoiding or minimizing the vulnerabilities to these hazards, the public and
private sector interests of Seminole County have joined together to create the Seminole County
Local Mitigation Strategy Working Group (LMS Working Group) to undertake a comprehensive
planning process that has culminated in the publication of this document: "The Seminole County
Local Hazard Mitigation Plan."
This is a multi - jurisdictional hazard mitigation plan, and the planning effort has been conducted
through the coordinated, cooperative effort of several local governments including City of
Altamonte Springs, City of Casselberry, City of Lake Mary, City of Longwood, City of Oviedo,
City of Sanford, City of Winter Springs, and Seminole County. Seminole County and all seven
municipalities have formally adopted the current Seminole County Local Mitigation Strategy.
Upon approval of this updated Seminole County Local Mitigation Strategy a new resolution will
be formally adopted.
The LMS Working Group has also conducted detailed studies to identify the hazards threatening
the jurisdictions of Seminole County and to estimate the relative risks posed to the community
by those hazards. This information has been used by the LMS Working Group to prioritize its
planning efforts to assess the vulnerabilities of the facilities and neighborhoods of Seminole
County to the impacts of future disasters involving those hazards. With these vulnerabilities
identified, the LMS Working Group has worked to identify, justify and prioritize specific
proposals for projects and programs that will avoid or minimize these vulnerabilities.
These proposed projects and programs to reduce the impacts of future disasters are called
"mitigation initiatives" in this document. Mitigation initiatives have been developed, and will
continue to be developed, by the LMS Working Group for implementation whenever the
resources and opportunities to do so become available. Implementation of this plan is
essentially through implementation of the mitigation initiatives included in the plan, and with
each implementation effort, the LMS Working Group will continue to help make the participating
communities more resistant to the human and economic costs of future disasters.
This plan will continue to be updated and expanded in the future to ensure that it addresses
changing conditions in the participating jurisdictions, experiences with disasters that do occur,
and any changes in the characteristics of the hazards that threaten the involved communities.
This updating process and future editions of the mitigation plan issued will also be used to
continue to inform and involve the general public and other interested groups to fully participate
in making the community more resistant to the impacts of future disasters.
Page 3
SL \ll\ ()tI C.&.,Y1\ ?1
Date: April 12, 2010
This document relates to Consent Agenda Item
"203" for the April 12, 2010 City Commission
Regular Meeting.
Local M Strategy
for
Seminole County
and its
Municipalities
4 16
SEMINOLE COUNTY
FLORIDA'S NATURAL CHOK :L
Seminole County Local Mitigation Strategy (LMS)
Table of Contents
Executive Summary 3
General 4
Introduction 4
Purpose 4
Planning Process 4
Risk Assessment 9
Hazards
9
Vulnerability 35
Assessing Vulnerabilities 35
Mitigation Goals 48
Mitigation Actions 48
National Flood Insurance Program (NFIP) Compliance 52
Implementation 54
Plan Maintenance 56
LMS Monitoring and Evaluation 56
LMS Updates 57
Implementation through Existing Plans and Programs 57
Appendices
LMS Project Priority List
LMS Resolution
LMS Working Group By-Laws
LMS Working Group Operating Procedures
LMS Working Group List
Mitigation Project Cost-Benefit-Analysis Worksheet
TAOS — Hazards Analysis
Mitigation 20 / 20 Reports
Jurisdictional Plans
Page 2
Seminole County Local Mitigation Strategy (LMS)
Executive Summary
Seminole County is threatened by a number of different types of natural, technological and
human - caused hazards. These hazards endanger the health and safety of the population of the
community, jeopardize its economic vitality, and imperil the quality of its environment. Because
of the importance of avoiding or minimizing the vulnerabilities to these hazards, the public and
private sector interests of Seminole County have joined together to create the Seminole County
Local Mitigation Strategy Working Group (LMS Working Group) to undertake a comprehensive
planning process that has culminated in the publication of this document: "The Seminole County
Local Hazard Mitigation Plan."
This is a multi - jurisdictional hazard mitigation plan, and the planning effort has been conducted
through the coordinated, cooperative effort of several local governments including City of
Altamonte Springs, City of Casselberry, City of Lake Mary, City of Longwood, City of Oviedo,
City of Sanford, City of Winter Springs, and Seminole County. Seminole County and all seven
municipalities have formally adopted the current Seminole County Local Mitigation Strategy.
Upon approval of this updated Seminole County Local Mitigation Strategy a new resolution will
be formally adopted.
The LMS Working Group has also conducted detailed studies to identify the hazards threatening
the jurisdictions of Seminole County and to estimate the relative risks posed to the community
by those hazards. This information has been used by the LMS Working Group to prioritize its
planning efforts to assess the vulnerabilities of the facilities and neighborhoods of Seminole
County to the impacts of future disasters involving those hazards. With these vulnerabilities
identified, the LMS Working Group has worked to identify, justify and prioritize specific
proposals for projects and programs that will avoid or minimize these vulnerabilities.
These proposed projects and programs to reduce the impacts of future disasters are called
"mitigation initiatives" in this document. Mitigation initiatives have been developed, and will
continue to be developed, by the LMS Working Group for implementation whenever the
resources and opportunities to do so become available. Implementation of this plan is
essentially through implementation of the mitigation initiatives included in the plan, and with
each implementation effort, the LMS Working Group will continue to help make the participating
communities more resistant to the human and economic costs of future disasters.
This plan will continue to be updated and expanded in the future to ensure that it addresses
changing conditions in the participating jurisdictions, experiences with disasters that do occur,
and any changes in the characteristics of the hazards that threaten the involved communities.
This updating process and future editions of the mitigation plan issued will also be used to
continue to inform and involve the general public and other interested groups to fully participate
in making the community more resistant to the impacts of future disasters.
4 ' f. :► Page 3
SEA -1! \, % (.LXI
Seminole County Local Mitigation Strategy (LMS)
II. General
A. Introduction
Hazard mitigation is any action taken to permanently reduce or eliminate long -term risk
to people and their property from the effects of hazards. The key to successful long-
term hazard vulnerability reduction through mitigation is using a fundamental, well -
conceived planning process. The LMS Working Group has been established to make
the population, neighborhoods, businesses and institutions of the community more
resistant to the impacts of future disasters. The LMS Working Group has been
undertaking a comprehensive, detailed evaluation of the vulnerabilities of the community
for all- hazards in order to identify ways to make the communities of the planning area
more resistant to their impacts.
Purpose
The primary purpose of the LMS is to establish an ongoing process that will make
hazard mitigation part of the daily routine for the entire community. The LMS process
had the County assess its vulnerabilities to all types of hazards, identify a
comprehensive list of goals, objectives, plans, programs and projects in an effort to
decrease or eliminate the effects of those vulnerabilities and then prioritized the
implementation of those initiatives.
Planning Process
The LMS Working Group is made up of a number of local government agencies,
business interests, community organizations, and institutions. This section describes
the
local jurisdictions and organizations participating in the LMS Working Group and
discusses the organizational structure used to complete the planning process. It also
provides a summary of the current status of planning activities by the participants,
documenting the level of participation by the jurisdictions making up the LMS Working
Group. The LMS Working Group by -laws and operating procedures, given in Tab 2 of
the plan, further define how participation in the planning process is determined.
On a periodic basis, the LMS Working Group solicits, electronically, the continuing
involvement in mitigation planning by each local jurisdiction in the planning area. In this
solicitation, the jurisdictions are encouraged to identify agencies and organizations that
should represent the jurisdiction. This solicitation, sent out from the Seminole County
Department of Public Safety, Division of Emergency Management, states the many
benefits to local governments from participation in the mitigation planning. Subsequently
written solicitation was issued by the Division of Emergency Management to local
jurisdictions, adjacent counties, and organizations with facilities or responsibilities in the
county for them to attend a LMS Review and Update meeting on March 6, 2009 and
April 8, 2009 in the Public Safety Building. Those organizations not directly associated
with state, regional or local governments, such as large businesses and industries, and
volunteer agencies are also solicited on an annual basis to join the planning process, as
well as through periodic public information efforts through the LMS Working Group. With
a positive response to these solicitations from the LMS Working Group, each local
jurisdiction and its agencies, any state, federal and regional agencies, and /or any
interested community groups, are considered to be participants in the Seminole County
planning process and requested to engage in the meetings and planning activities
necessary to develop, maintain and implement the plan.
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Seminole County Local Mitigation Strategy (LMS)
1. Participating Organizations
Participating local government agencies are registered as organizations under
the appropriate jurisdiction, as are other groups, associations, districts, regions
and agencies, both public and private, which serve the jurisdiction or are
headquartered in it.
Because this is a local, multi - jurisdiction mitigation plan, this approach enables all
interested organizations, groups and agencies, regardless of their total number,
to be directly and actively involved in the planning within a limited number of
jurisdictions. In the case of Seminole County, this planning effort has involved
seven jurisdictions defined as active participants in the planning.
The active planning participants include: City of Altamonte Springs, Cit of
City
Casselberry, City of Lake Mary, City of Longwood, City of Oviedo, City of
Sanford, City of Winter Springs, and Seminole County.
This is an all- inclusive list for all the entities within our County required to
approve this LMS plan as a multi - jurisdictional plan. Participation will be
identified by attendance and active participation in the process. Participating
entities are the same jurisdictions that participated in the 2004 plan update and
they have been consistently active in the process since that time.
However, this LMS has had participation by all of the entities listed above, to the
extent that they attended the meetings, participated, and contributed to the
update process of gathering data, providing insight, and information all in the
effort to better mitigate our community.
Public Participation
Several public information activities have been undertaken to explain the
mitigation planning process to the community and to solicit their input and
involvement in the planning process, as well as to provide mitigation awareness
and educational information. The LMS Working Group welcomes public input to
the planning process, and fosters public participation through the issuance of
legal notices and holding public meetings. For the update of this plan, a link was
added to www.prepareseminole.com that continues to allow the public to submit
input and comment for the LMS plan update.
The draft LMS plan is available via the website for continued public comment. A
public announcement on www.prepareseminole.com will be posted to offer the
public another opportunity for comment and input prior to the adoption hearing.
Once the plan is adopted the approved plan will continue to be made available
via the website for future review and comment. Public comment on the plan will
continue to be encouraged on www.prepareseminole.com. In addition to seeking
public comment and input to the overall planning process and the draft plan,
many of the participating agencies and organizations in the LMS Working Group
individually conduct efforts to inform the public about the impacts of disasters,
hazard mitigation and the mitigation planning process. From the report entitled
"Public Information Activity Report ", past highlights of the process used by the
participating agencies to engage the general public in the mitigation planning
process include a two -hour television program aired all over Central Florida
inviting comment on disaster preparedness and planning. The program was
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Seminole County Local Mitigation Strategy (LMS)
broadcast and re- broadcast on WCEU, a Central Florida public broadcast
channel.
Other upcoming or otherwise planned but incomplete community outreach efforts
will focus on including the precepts of mitigation in current public information
activities, and to make the public aware of this planning process, its goals and
objectives, and opportunities for public input at every possible occasion.
The Seminole County LMS Working Group will continue efforts to develop and
implement a year -round program to engage the community in the LMS planning
process and to provide them with mitigation - related information and education.
These efforts will be to continually invite public comments and recommendations
regarding the mitigation goals for the community, the priorities for the planning,
and the unique needs of each community for mitigation - related public
information.
Authorities and References
The following references were utilized to provide applicable guidance
during the revision process of the LMS.
• Seminole County Comprehensive Plan and Land Development Code
o This reference was utilized to ensure uniformity amongst the
county planning efforts.
• Municipal Comprehensive Plans and Land Development Codes
o This reference was utilized to ensure uniformity amongst the
municipal planning efforts.
• Florida Administrative Rule 9G- 22.004
o This reference was utilized for guidance for the processes for
application, project selection and the distribution of funds
under the Hazard Mitigation Grant Program.
• Local Multi- Hazard Mitigation Planning Guidance (FEMA, dated
7/1/08)
o This reference was utilized to ensure the requirements of 44
CFR §201.6, Local Mitigation Plans were met.
• "State and Local Mitigation Planning How -to- Guide, Version 1.0 ",
Federal Emergency Management Agency, August 2001.
o This reference was utilized as guidance for the type of
information needed to maintain a viable LMS planning process
and plan.
• "State and Local Plan Interim Criteria Under the Disaster Mitigation
Act of 2000 ", Federal Emergency Management Agency, March 26,
2002.
o The criteria was utilized for the revision of the Seminole
County LMS and submitted with the final draft.
• "Understanding Your Risks, Identifying Hazards and Estimating
Losses ", FEMA, August 2001.
o This reference was utilized as guidance for the hazards
analysis and risk assessment for the LMS.
• NOAA Satellite and Information Service — National Climatic Data
Center - http:/ /www.ncdc.noaa.qov /oa /ncdc.html
o This website was utilized for information and date gathering to
identify previous occurrences of hazard events.
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Seminole County Local Mitigation Strategy (LMS)
• Florida Department of Environmental Protection: Florida Geological
Survey — Sinkhole Database -
http: / /www.dep.state.fl.us /geology /gisdatamaps /sinkhole database.ht
m
o This website was utilized for information and date gathering to
identify previous occurrences of hazard events.
Update ProcesL
The current LMS Working Group, participants and attendees utilized the Local
Multi- Hazard Mitigation Planning Guidance (FEMA, dated 7/1/08), to review the
2004 LMS Plan. Based upon the review it was determined that plan updates
would be needed to meet the federal and State LMS Plan requirements. The
LMS Working Group members and Emergency Response Educators
Consultants, Inc. during this review process determined the existing LMS was not
satisfactory to provide the foundation of a county -wide mitigation program.
Therefore, a complete review of every section of the Seminole County LMS was
conducted and the plan was redeveloped using the Plan Interim Criteria Under
the Disaster Mitigation Act of 2000 dated June, 2008.
During the 2009 Seminole County LMS update the following actions were taken
by the LMS Working Group with contract support from Emergency Response
Educators and Consultant, Inc:
1. A LMS revision kick -off meeting with the LMS Working Group was
conducted to review and analyze each section of the plan.
2. It was determined that all sections reviewed needed to be revised and
updated. The following sections were reviewed:
a. General Section:
i. This section includes the plan introduction, purpose, and
planning process. This section was revised to reflect the
current approach and processes of the Seminole County
LMS Working Group.
b. Risk Assessment Section:
i. This section includes the hazards analysis and assessing
the vulnerabilities of Seminole County. This section was
updated to reflect current documented history and outlook of
the hazards and vulnerabilities that could impact Seminole
County. Each section was revised to reflect updated hazard
events and to reflect current vulnerabilities. The Seminole
County LMS Working Group determined for continuity
purposes the LMS hazards would remain consistent with the
Seminole County Comprehensive Emergency Management
Plan (CEMP).
c. Mitigation Goals Section:
i. This section includes the mitigation goals, the project list,
National Flood Insurance Protection (NFIP) compliance data
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SEMINOLE COUNTY
Seminole County Local Mitigation Strategy (LMS)
and the process for the mitigation project implementation.
Each section was revised to reflect current updated goals for
the LMS, the current project list, updated NFIP data, and the
revised process for the implementation of the mitigation
projects.
d. Plan Maintenance Section:
i. This section includes the monitoring and evaluation process
for the LMS, the update process for the LMS, and how the
LMS is implemented through existing plans and procedures.
This section was revised to reflect the current processes for
the monitoring, evaluation, and update for the LMS. The
implementation of existing plans and processes for LMS
implementation was reviewed and revised to reflect the
current implementation processes.
e. LMS Working Group By -Laws Appendix
i. The LMS Working Group By -Laws were rewritten to reflect
the current policies and guidelines of the Seminole County
LMS Working Group.
f. LMS Working Group Operating Procedures Appendix
i. The LMS Working Group Operating Procedures were
rewritten to reflect the current operating procedures of the
Seminole County LMS Working Group.
g. Mitigation 20/20 Reports Appendix
i. New and updated data was entered into the Mitigation 20/20
program which resulted in numerous updated reports to
support the LMS plan.
3. The draft revisions of the LMS sections that required updates were
disseminated to all LMS Working Group members for review and
comment.
4. A follow -up meeting will be conducted to review the LMS final draft and
approve all revised sections.
The LMS Working Group will continue to send out annual written invitations to
everyone who may have a stake in the process, and will include any additional
people or groups as needed and identified, as required by Florida Administrative
Rule 9G- 22.004.
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Seminole County Local Mitigation Strategy (LMS)
III. Risk Assessment
Hazards
The technical planning process begins with hazard identification. In this process, the
LMS Working Group and representatives of individual jurisdictions identify all of the
natural, technological and human - caused hazards that could threaten the community.
When the hazard types are identified as relevant to, or of concern for, that jurisdiction,
the participants can make an estimate of the risk each poses to the jurisdiction being
evaluated. This section details the natural, technological and human caused hazards to
which Seminole County is vulnerable.
The Seminole County LMS Task Force has incorporated hazard history that was
accurately available. In the future the LMS Task Force will incorporate continued hazard
history for inclusion in this LMS. The identified hazards have remained consistent from
the 2004 Seminole County LMS.
Vulnerability and Impact Scales
Each hazard described in this section is ranked by level of vulnerability based on
probability of occurrence or actual occurrence, and degree of severity or magnitude
(consequences of impact). The scales are defined below:
Vulnerability Scale
• None = Although the hazard is noted, no previous occurrence has been
recorded and the hazard is considered no threat to the jurisdiction.
• Minimal = Some potential for the hazard exists, but no previous
occurrences have been recorded.
• Moderate = Potential for the hazard exists and previous occurrences
have been fairly infrequent.
• High = Strong potential for the hazard to occur, and previous occurrence
have been frequent.
Extent Scale
• Minimal = No extent or consequence have been documented in the
jurisdiction; or, if so, it has been localized and short -term (less than 24
hours).
• Minor = Hazard extent has been or has the potential to be relatively
localized and short -term (less than 72 hours)
• Moderate = Hazard extent has been or has the potential to impact
multiple geographic areas on a short- to mid -term basis (72 -96 hours),
and cause disruption in several community indicators (communications,
( ,
transportation, medical services, etc.)
• Major = Hazard has impacted or has the potential to impact widespread
geographic areas on a long -term basis (more than 96 hours) and cause
widespread disruption of community indicators.
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Seminole County Local Mitigation Strategy (LMS)
1. Aircraft Accident
Seminole County has three (3) smaller air strips on the east side of Seminole County
in Geneva, Lake Harney area, and Chuluota capable of landing a small aircraft (i.e.
Cessna). In addition, many smaller planes use lakes as landing and take -off
locations. The largest airport in Seminole County is an international airport inside the
City of Sanford. The Orlando Sanford International Airport (SFB) is situated on
approximately 2,000 acres in the boundaries of the City of Sanford in the
northwestern section of Seminole County. The Sanford Airport Authority is
responsible for the operation, maintenance, and development of the SFB airstrips. In
the year 2007, the SFB statistics included 294,781 landings and takeoffs; 7,496 tons
of cargo; and 1,780,495 passenger arrivals and departures. A majority of the
passengers arriving and departing from SFB are international travelers.
Buildings infrastructure and critical facilities have some potential for impact by this
disaster. However, because impact areas are undefined an exact value of dollar loss
cannot be determined.
Specific Geographic Areas of Vulnerability:
• City of Sanford
• Unincorporated areas of Seminole County near Geneva, Lake Harney
and Chuluota
Statistical data related to previous occurrences was unavailable for inclusion in this
Plan, but will be developed and incorporated into the next Plan update.
Level of Vulnerability: Minimal to moderate
Extent: Minor to moderate
Consequences:
- evacuations
- notification and warning
- public information
- mass care
- mass casualty /fatality
- law enforcement/traffic control
- large scale contamination issues
- mass decontamination
- overcrowded hospitals
- contaminated land and /or water
- animal issues (relocation, medical)
- environmental damage /loss
- psychological needs
- communications failure
- civil unrest
2. Civil Disorder
Although the federal government recognizes that the United States has entered the
post -cold war era, federal planning guidelines on military threats are in transition.
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Seminole County Local Mitigation Strategy (LMS)
For hazard analysis purposes, it is prudent to scale back on the magnitude of nuclear
events for other more likely scenarios.
For threats of armed violence, it is very likely that joint jurisdictional management of
the operations will take effect, coordinated at the County level between the Sheriff's
Office, Florida Department of Law Enforcement (FDLE), and the Division of
Emergency Management. For any of these scenarios, some degree of state and
federal involvement is most likely to occur.
Buildings infrastructure and critical facilities have some potential for impact by this
disaster. However, because impact areas are undefined an exact value of dollar loss
cannot be determined.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Data related to previous occurrences was unavailable for inclusion in this Plan, but
will be developed and incorporated into the next Plan update.
Due to the minimal vulnerability and minimal impact from this hazard, it will not be
further evaluated relative to vulnerability to people, property, critical infrastructure,
environment, economy or response operations.
Level of Vulnerability: Minimal
Extent: Minimal
Consequences:
- transportation /traffic control
- public health /quarantine
- law enforcement/security issues
- impact to social services
- impact on jail and detention facilities
3. Critical Infrastructure Disruption
This type of attack will be dealt with by using the Seminole County Terrorism Annex.
ESF #2, Communications, in coordination with Information Services, will be
responsible for Cyber- Terrorism. ESF #4, Firefighting, ESF #10, Hazardous
Materials, and ESF #16, Law Enforcement will use specialized personnel and
equipment to deal with hazardous incidents.
Buildings infrastructure, critical facilities and housing of vulnerable populations have
some potential for impact by this disaster. However, because impact areas are
undefined an exact value of dollar loss cannot be determined.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
/,,° Page 11
Seminole County Local Mitigation Strategy (LMS)
Statistical data related to previous occurrences was unavailable for inclusion in
this Plan, but will be developed and incorporated into the next Plan update.
Level of Vulnerability: Minimal to moderate
Extent: Minor to moderate
Consequences:
- notification and warning
- public information
- mass care
- law enforcement/traffic control
- psychological needs
- communications failure
- civil nr
u est
4. Communication Disruption
Seminole County relies on communication equipment to coordinate preparedness,
response and recovery efforts during times of disaster. The County maintains an
800 megahertz radio system that is interoperable with all municipal and surrounding
counties that support 800 MHz systems. For those counties that do not have 800
MHz networks, Information Technology Service has been working on meshing
various frequencies together to provide communication with those organizations.
During times of disaster, standard phone lines may become overloaded or systems
may be damage. Satellite phones have been placed at various locations around the
County to provide redundancy.
This hazard has no impact on the physical loss of buildings infrastructure, critical
facilities, and housing of vulnerable populations and therefore the value of potential
dollar loss from impact to the built environment is not relevant.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Statistical data related to previous occurrences was unavailable for inclusion in
this Plan, but will be developed and incorporated into the next Plan update.
Level of Vulnerability: Minimal to moderate
Extent: Minor to moderate
Consequences:
- notification and warning
- public information
- law enforcement/traffic control
- communications failure
- civil unrest
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Seminole County Local Mitigation Strategy (LMS)
5. Disease and Pandemic Outbreaks
The Department of Health is the lead agency if an outbreak occurs; they have been
training employees on their duties if an outbreak occurs in Seminole County. The
Department of Health has plans in place, including; the use of the Strategic National
Stockpile, how to identify the outbreak, and how to determine the particular diseases.
A Memorandum of Understanding (MOU) has been signed with Seminole County
Government and the School Board on the use of the schools as Points of
Distribution.
The Seminole County Division of Emergency Management and Department of
Health continue to monitor pandemic and disease outbreaks for their potential to
harm the citizens of Seminole County. Quarantine and isolation are both methods
that may be utilized to help prevent and decrease the potential for spread of any
disease.
This hazard has no impact on the physical loss of buildings infrastructure, critical
facilities, and housing of vulnerable populations and therefore the value of potential
dollar loss from impact to the built environment is not relevant.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Statistical data related to previous occurrences was unavailable for inclusion in
this Plan, but will be developed and incorporated into the next Plan update.
Level of Vulnerability: Minimal
Extent: Moderate
Consequences:
- economic loss
- mass casualty /fatality
- infectious disease control
- disposal of diseased livestock/agricultural stock
- need for mass feeding
- mass care
- quarantine of people and /or livestock
- large number of treatment agents
Because of the prevention focus of this hazard, no further mitigation analysis will be
conducted within this plan related to vulnerability to people, property, critical
infrastructure, environment, economy or response operations.
6. Drought and Water Shortages
A drought is a period of unusually persistent dry weather that persists long enough to
cause serious problems such as crop damage and /or water supply shortages. The
severity of the drought depends upon the degree of moisture deficiency, the duration,
and the size of the affected area.
There are actually four different ways that drought can be defined.
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SEMINOLE COUNTY
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Seminole County Local Mitigation Strategy (LMS)
1. Meteorological a measure of departure of precipitation from normal. Due
to climatic differences, what might be considered a drought in one
location of the country may not be a drought in another location.
2. Agricultural refers to a situation where the amount of moisture in the soil
no longer meets the needs of a particular crop.
3. Hydrological occurs when surface and subsurface water supplies are
below normal.
4. Socioeconomic refers to the situation that occurs when physical water
shortages begin to affect people.
Numerous emergencies can arise because of drought conditions in Florida.
Wildfires, sinkholes, and water shortages can result from prolonged drought
conditions. In 1998, Seminole County experienced one of the worst wildfire events in
history. This was due to a major drought from a El Nino weather cycle. Shortly after,
the National Climate Data Center reported 2000 was Florida's driest year on record.
Major wildfire events were not reported due to advanced prescribed burning
strategies.
In the past, most of Central Florida has suffered from drought conditions to the extent
that unnecessary water use has been curtailed by legislation. This curtailment,
imposed by local governments and the St. Johns Water Management District, was
accomplished by water restriction use during designated hours and alternate days.
Unincorporated Seminole County and all of its municipalities may be affected by a
drought condition. Structures are not vulnerable to the consequences of droughts;
therefore do not have a potential dollar loss.
This hazard has no impact on the physical loss of buildings infrastructure, critical
facilities, and housing of vulnerable populations and therefore the value of potential
dollar loss from impact to the built environment is not relevant.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Statistical data related to previous occurrences was unavailable for inclusion in this
Plan, but will be developed and incorporated into the next Plan update.
Level of Vulnerability: Minimal to moderate
Extent: Minor to moderate
Consequences:
- notification and warning
- law enforcement/traffic control
- fire /rescue
- evacuation and re -entry
- economic disruption /loss
- agricultural loss
- mass care (short and long term)
- feeding evacuated population
- public health (contamination of water supply)
Page 14
Seminole County Local Mitigation Strategy (LMS)
- infrastructure damage /loss (water distribution and treatment
systems)
- animal issues (relocation, feeding)
- economic recovery assistance programs
7. Earthquake
An earthquake is a sudden movement of the Earth's lithosphere (its crust and upper
mantle). Earthquakes are caused by the release of built -up stress within rocks along
geologic faults or by the movement of magma in volcanic areas. They are usually
followed by aftershocks.
Seminole County is located well outside of any areas identified by the United States
Geological Survey as having seismic risk. The peak ground acceleration (PGA) with
a 10% probability of exceedance in 50 years for Seminole County is 0% (lowest
potential for seismic group shaking events). FEMA recommends that earthquakes
only be further evaluated for mitigation purposes is area with a PGA of 3% or more.
The probability of an earthquake is very low; however the impact would be major
throughout the county. None has ever been recorded in Seminole County.
Buildings infrastructure and critical facilities have some potential for impact by this
disaster. However, because impact areas are undefined, an exact value of dollar
loss cannot be determined. Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Level of Vulnerability: None
Extent: Minimal
Due to the low probability of occurrence, this hazard will not be further evaluated in
this plan related to vulnerability to people, property, critical infrastructure,
environment, economy or response operations.
8. Erosion
Seminole County is not a coastal county so therefore, there has been little to no
vulnerability identified in Seminole County for erosion.
This hazard has no impact on the physical loss of buildings infrastructure, critical
facilities, and housing of vulnerable populations and therefore the value of potential
dollar loss from impact to the built environment is not relevant.
Data related to previous occurrences was unavailable for inclusion in this Plan, but
will be further researched and, if recorded, included in the next Plan update.
Level of Vulnerability: Minimal
Extent: Minimal
Due to the minimal vulnerability and impact of occurrence, this hazard will not be
further evaluated in this plan related to vulnerability to people, property, critical
infrastructure, environment, economy or response operations.
Page 15
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Seminole County Local Mitigation Strategy (LMS)
9. Exotic Pests and Diseases
To date Seminole County has not experienced an outbreak of this nature. The
Agriculture Extension Service maintains vigilance and keeps in contact with the
surrounding counties that have had such incidents. If an outbreak occurs, they will
notify the proper agency and request assistance.
This hazard has no impact on the physical loss of buildings infrastructure, critical
facilities, and housing of vulnerable populations and therefore the value of potential
dollar loss from impact to the built environment is not relevant.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Level of Vulnerability: Minimal
Extent: Minor
Consequences:
- economic loss
- mass casualty /fatality
- infectious disease control
- disposal of diseased livestock/agricultural stock
- need for mass feeding
- mass care
- quarantine of people and /or livestock
- large number of treatment agents
Due to the low probability of occurrence, this hazard will not be further evaluated
in this plan related to vulnerability to people, property, critical infrastructure,
environment, economy or response operations.
10. Extreme Heat
Heat - related deaths and illness are preventable yet annually many people succumb
to extreme heat. Historically, from 1979 -2003, excessive heat exposure caused
8,015 deaths in the United States. During this period, more people in this country
died from extreme heat than from hurricanes, lightning, tornadoes, floods, and
earthquakes combined. In 2001, 300 deaths were caused by excessive heat
exposure.
People suffer heat - related illness when their bodies are unable to compensate and
properly cool themselves. The body normally cools itself by sweating. But under
some conditions, sweating just isn't enough. In such cases, a person's body
temperature rises rapidly. Very high body temperatures may damage the brain or
other vital organs.
Temperatures that hover 10 degrees or more above the average high temperature
for the region and last for several weeks are defined as extreme heat. Humid or
muggy conditions, which add to the discomfort of high temperatures, occur when a
"dome" of high atmospheric pressure traps hazy, damp air near the ground.
Excessively dry and hot conditions can provoke dust storms and low visibility.
Droughts occur when a long period passes without substantial rainfall. A heat wave
combined with a drought is a very dangerous situations of this plan revision, there
Page 16
$LA1 /1t'1L` NA/1
Seminole County Local Mitigation Strategy (LMS)
have not been any documented consequences of an extreme heat occurrence
affecting Seminole County or its municipalities.
In the event a heat wave were to impact the region, individuals in Seminole County
and all the municipalities would be vulnerable to the consequences of a heat wave.
This hazard has no impact on the physical loss of buildings infrastructure, critical
facilities, and housing of vulnerable populations and therefore the value of potential
9 p p p
dollar loss from impact to the built environment is not relevant.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Statistical data related to previous occurrences was unavailable for inclusion in this Plan,
but will be developed and incorporated into the next Plan update.
Level of Vulnerability: High
Extent: Moderate
Consequences:
- notification and warning
- law enforcement/traffic control
- fire /rescue
- evacuation and re -entry
- economic disruption /loss
- agricultural loss
- mass care (short and long term)
- public health (contamination of water supply)
- infrastructure damage /loss (water distribution /treatment
systems)
- animal issues (relocation, feeding)
- economic recovery assistance programs
11. Fires (Wildfires and Major Urban Fires)
Seminole County is susceptible to wildfires throughout the year, particularly during
the months with minimal rainfall amounts. The major cause of brush fires and forest
fires is due to residents not conforming to the burning regulations in effect and not
considering the conditions as they exist (dry or windy conditions). The spring is the
highest period for lightning caused fires fueled by strong spring winds and lack of
rainfall during the same period. In recent years, homes and businesses have been
threatened by encroaching wildfires.
Due to the extremely hot and dry conditions during the summer of 1998, Central
Florida became engulfed in wild fires unlike it had ever experienced before. Some of
the more significant events of this wild fire summer were the cancellation of the
"Pepsi 400" NASCAR race on July 4 the total evacuation of Flagler County and a
statewide burn ban and fireworks ban.
In June, 1998 Florida had been suffering through an unusually long drought caused
by the "La Nina" weather pattern. Seminole County experienced severe brush fire
activity. Approximately 2,000 acres burned in the Geneva area and destroyed 12
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SEMINOLE_ COUNTY
Seminole County Local Mitigation Strategy (LMS)
residences. There were no fatalities or injuries, but the dollar loss was approximately
$1.1 million.
Wildfires in Seminole County and most of its municipalities impact wooded areas in
low population areas and generally do not pose a high risk to major population
centers.
Major Urban Fires are less of a threat to Seminole County in general, but specific
jurisdictions within the County are more vulnerable due to building density and type.
These jurisdictions, the City of Altamonte Springs and the City of Longwood, have
identified Major Urban Fires as a high risk.
Buildings, infrastructure, critical facilities and housing for vulnerable populations have
some potential for impact by this disaster. However, because impact areas are
undefined an exact value of dollar loss cannot be determined.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
• Areas identified as wildland urban interface areas*
*Statistical data related to previous occurrences was unavailable for inclusion in
this Plan, but will be developed and incorporated into the next Plan update.
Level of Vulnerability: High
Extent: Moderate
Consequences:
- notification and warning
- law enforcement/traffic control
- fire /rescue
- evacuation and re -entry
- property damage /loss
- economic disruption /loss
- agricultural loss
- mass care (short and long term)
- feeding evacuated population
- public health (contamination of water supply)
- infrastructure damage /loss (water distribution and treatment
systems)
- animal issues (relocation, feeding)
- economic recovery assistance programs
12. Flooding (Riverine)
Since much of Seminole County is flood prone, it is greatly affected by heavy rains.
The area's most affected by heavy rains are located in the northeastern and eastern
parts of the County, which are sparsely populated. These residents are along the St.
John's River, Econolacahatchee River, Lake Monroe, Lake Jessup and Lake Harney.
The residents primarily reside in mobile homes with scattered site built homes along
these waterways.
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SEMINOLE COUNTY
Seminole County Local Mitigation Strategy (LMS)
Due to the potential danger of flooding, wind damage, power outages and road
closures in the eastern and western portion of the county, residents along the St.
John's River, Wekiva River, and the lake home residents in these locations, shall be
considered for recommended or mandatory evacuations in preparation for an Atlantic
land- falling hurricane.
n s plus complete the evacuation
ss
The time needed to notify these reside process
p p p
makes for critical Public Safety considerations.
The County has approximately 5,500 homeowners and 500 businesses that could be
affected by flooding during a 100 -year flood. These businesses and homeowners
have been identified by address and GIS mapping. The County has notified all the
affected residents and business owners and provided them with assistance
brochures pertaining to the possible flooding and the National Flood Insurance
Program (NFIP). In many flood prone areas, the terrain is heavily wooded with vast
areas of marshlands, which receive the overflows from Lake Monroe, Lake Harney,
Lake Jessup and the St. John's River. Another problem area is U.S. Highway 17 -92,
where it runs parallel to Lake Monroe. According to the flood prone map, this main
artery will be under water after 10 inches of rain.
According to a 100 -year storm calculation, portions of this main artery might be
under water after such a storm. Previously identified flood prone areas close to
home and business owners are less of a flood threat today due to the County's
aggressive Storm Water Management efforts. When new subdivisions, commercial
developments or road widening projects are undertaken, the County provides
substantial allowances for storm water runoff, away from populated areas. Road and
residential flooding is significantly improved throughout Seminole County.
Seminole County has several systems for notification to residents for flood threats,
as well as other significant events.
Some of these are as follows: National Weather Service notices, river gauges along
the St. John's River, Emergency Satellite Communications link with the Florida
Division of Emergency Management in Tallahassee, Dialogic Communicator
notification system, Alert Seminole, the Florida Warning Information Network,
Doppler radar and media releases.
Seminole County is surrounded to the east and north by the St. Johns River.
Flooding has been reported along this river throughout history. In the City of
Sanford, flood waters have been observed at 8.60 ft on 10/15/1953, 8.14 ft on
10/11/1960, 7.88 ft on 09/02/2008, 7.47 ft on 10/04/2004, 7.32 ft on 10/13/1948, 7.30
ft on 09/28/1945, 7.19 ft on 09/21/1964, 7.14 ft on 10/22/1947, 6.76 ft on 09/17/2004,
and 6.64 ft on 11/26/1994. Projected events that would occur during these floods
are as follows:
13.0 Water level rises in parking lot at Central Florida
Regional Hospital and approaches New Tribes
(water stage in feet) Mission in Sanford.
11.0 Water enters the Sailpoint Apartments, Lake Monroe
Inn, City Hall and approaching the Courthouse in
Page 19
Seminole County Local Mitigation Strategy (LMS)
Sanford.
10.5 Water enters the Regatta Shores Apartments and
Towne Center Apartments in Sanford
10.0 Water enters the Old Post Office and Sanford
Landing Apartments in Sanford.
Water encroaches on Sanford Landing Apartments
9.5
and other low lying structures along the waterfront.
Flooding becomes more significant to the Sanford
9.0 waterfront area. Water approaches low lying areas
on the waterfront.
Flooding becomes more significant to low lying
$ 0 structures and marinas along the river in Volusia and
Seminole counties, including Sanford, Enterprise
and Lake Monroe.
Many secondary roads are flooded and may become
impassable around Lake Monroe and in Enterprise.
7.4 Rising water begins to impact more areas of Stone
Island and water approaches homes in River Oaks
Estates.
Water begins to move over sea wall around Lake
7 0 Monroe and rises into grassy areas around the sea
wall. Water begins to encroach on Seminole
Boulevard
Water enters a few lower lying homes in the Stone
Island and Stillbrook subdivisions. Road into Stone
6.5 Island becomes impassable. Water rises onto low
lying property near Sanford. Parks and docks are
flooded near Lake Monroe.
Water completely surrounds many homes in the
Stone Island and Still Brook subdivisions. Pool
6.2 enclosures and patios become flooded. Water
covers many of the roads. Flooding occurs on
Enterprise Road and in the Bethel Loop subdivision.
6.0 Water encroaches on low lying roads, also pool
enclosures and patios in the Stone Island
416 Page 20
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Seminole County Local Mitigation Strategy (LMS)
Subdivision.
Water surrounds homes in the Stone Island area
5.8 near Enterprise in Volusia County. Water enters
yards and floods docks in the River Oaks Estates
Subdivision.
Water moves up into yards and covers some
5.5 driveways in Stone Island Subdivision near
Enterprise.
Previous Occurrences:
Date Type Property
Location or County ype Death Injured Damage
Peninsular 09/15/1994 Flooding 0 0 500K
City of Winter 07/21/2001 Flash Flood 0 0 15K
Springs
City of Winter 09/15/2001 Urban /Small 1 0 0
Springs Stream Flood
City of Sanford 08/19/2002 Flash Flood 0 0 60K
City of Oviedo 08/29/2002 Flash Flood 0 0 0
Countywide 09/05/2004 Flash Flood 0 0 0
r City of Geneva, and 09/09/2004 Flood 0 0 4.8M
City of Sanford
Source: National Climatic Data Center
There are no dams located in Seminole County. Seminole County is not a coastal
county and consequently is not vulnerable to coastal flooding.
Specific Geographic Areas of Vulnerability:
• Areas along these bodies of water: St. John's River, Econolacahatchee River,
Wekiva River, Lake Monroe, Lake Jessup and Lake Harney
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Seminole County Local Mitigation Strategy (LMS)
• Low -lying and flood prone areas in all of Seminole County and its
municipalities.
Buildings, infrastructure, critical facilities and housing for vulnerable populations have
some potential for impact by this disaster. However, because impact areas are
undefined, an exact value of dollar loss cannot be determined.
Statistical data related to previous occurrences was unavailable for inclusion in this
Plan, but will be developed and incorporated into the next Plan update.
Level of Vulnerability: High
Extent: Moderate to major
Consequences:
- notification and warning
- law enforcement/traffic control
- fire /rescue
- evacuation and re -entry
- property damage /loss
- economic disruption /loss
- agricultural loss
- mass care (short and long term)
- feeding evacuated population
- public health (contamination of water supply)
- infrastructure damage /loss (water distribution and treatment
systems)
- animal issues (relocation, feeding)
- economic recovery assistance programs
13. Hail
Early in the developmental stages of a hailstorm, ice crystals form within a low -
pressure front due to the rapid rising of warm air into the upper atmosphere and the
subsequent cooling of the air mass. Frozen droplets gradually accumulate on the ice
crystals until having developed sufficient weight they fall as precipitation —as balls or
irregularly shaped masses of ice greater than 0.75 inches in diameter. The size of
hailstones is a direct function of the size and severity of the storm. High velocity
updraft winds are required to keep hail in suspension in thunderclouds. The strength
of the updraft is a function of the intensity of heating at the Earth's surface. Higher
temperature gradients relative to elevation above the surface result in increased
suspension time and hailstone size. Hailstorms are another potential damaging
outgrowth of severe thunderstorms.
When hail impacts Seminole County, the county and all the municipalities are
vulnerable to the consequences of damage from hail.
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SEMINOLE COUNTY
Seminole County Local Mitigation Strategy (LMS)
Previous Occurrences:
Date Type Property
Location or County ype Magnitude Deaths Injured Damage
Casselberry 04/16/2000 Hail 1.00 in. 0 1 0 I 0
Lake Mary 08/25/2000 Hail 0.75 in. 10
0 0
Winter Springs I 08/25/2000 Hail 0.75 in. 0 0 0
Winter Springs 03/31/2001 Hail 1.00 in. 1
0 0
I _ _
Sanford 05/25/2001 Hail 1.00 in. 0 I
Altamonte Springs 06/17/2001 Hail 1.75 in. 0 0 0
Longwood 04/04/2002 Hail 0.75 in. 0 1
0
Winter Springs 04/04/2002 Hail 0.75 in. 0 10
0
1
r Oviedo 04/04/2002 Hail 0.75 in. 0 FCT
0
Lake Mary 04/30/2002 Hail r 1.75 in. F
0 0
1
Oviedo 04/30/2002 Hail 1.75 in. 1 - 0 ----
0 0
_ Altamonte Springs 05/30/2002 Hail 0.88 in. F0
0
r(TT Lake Mary 04/25/2003 Hail 1.00 in.
(71 0
Oviedo 04/25/2003 Hail 0.75 in. F - 0 ----
0
i
Sanford I 07/30/2003 Hail F ` 1.75 in. 0 0 � 0
Winter Springs 08/05/2003 Hail 0.88 in. 0 0 0
Lake Jessup * 06/06/2004 + Hail j 1.25 in. 0 0 0
Oviedo r 06/06/2004 Hail 1.00 in. 0 0 0
Sanford r 06/26/2004 Hail 0.75 in. 0 0 i 0
Fern Park * 06/13/2007 Hail 0.88 in. 0 1 0 OK
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Seminole County Local Mitigation Strategy (LMS)
Altamonte Springs 06/13/2007 Hail 0.88 in. 0 ( 0 OK
Fern Park * 06/13/2007 Hail 1.00 in. 0 0 OK
Geneva * 07/18/2007 Hail 1.00 in. 0 OK
Chuluota * 07/19/2007 Hail 0.75 in. 0 FO
Lake Mary 06/03/2008 Hail 0.75 in. 0 0 OK
Forest City 06/09/2008 Hail Y a 0.75 in. 0
OK
Geneva * 04/01/2009 Hail 0.75 in. 0 [ 0 OK
Source: National Climatic Data Center
* Areas identified as Census Designated Places (CDP) which are part of the unincorporated Seminole County.
Buildings, infrastructure, critical facilities and housing for vulnerable populations have
some potential for impact by this disaster. However, because impact areas are
undefined, an exact value of dollar loss cannot be determined.
Statistical data related to previous occurrences was unavailable for inclusion in this
Plan, but will be developed and incorporated into the next Plan update.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Level of Vulnerability: High
Extent: Minor
Consequences:
- power outages
- infrastructure damage
- property damage /loss
- storm surge flooding (winter storms)
- evacuations (day /night, road congestion)
- agricultural damage /loss
- economic loss
- debris
14. Hazardous Materials Accidents(Fixed Site and Transportation)
Seminole County would not be affected by a coastal oil spill, but could feel the
effects from a spill during an incident affecting the Florida Power and Light facility on
the St. John's River in Volusia County at Highway 17 -92 near the bridge.
'.F� Page 24
Seminole County Local Mitigation Strategy (LMS)
The movement of people and materials throughout Seminole County has greatly
increased. Accompanying this increased movement of people and materials is the
increased risk of a disaster involving hazardous materials, such as petroleum
products, volatile and toxic chemicals, radioactive materials, and explosives.
Transportation of some of these materials and people is accomplished by the use of
the railway system.
The CSX Railroad has one set of tracks passing through the west central and
western sections of the County in a north -south direction. These tracks, used for the
movement of freight and passengers through and into the County, cross four main
highways and roads; namely, Lake Mary Boulevard, SR 434, CR 427 and SR 436, all
heavily used by vehicular traffic.
Hazardous materials accidents are one of the most frequent hazards in many local
jurisdictions. However, in almost every incident the quantity released is minimal and
does not cause more than minimal to low impact to people, property, infrastructure,
the environment, economy or response operations.
Buildings, infrastructure, critical facilities and housing for vulnerable populations have
some potential for impact by this disaster. However, because impact areas are
undefined, an exact value of dollar loss cannot be determined.
Statistical data related to previous occurrences and impact to buildings, structures,
infrastructure and vulnerable housing and populations (i.e. elderly, special needs,
etc.) was unavailable for inclusion in this plan, but will be developed as a mitigation
initiative and incorporated into the next plan update.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities, particularly in close
proximity to transportation routes (road, rail and air) and facilities
reporting storage and use of hazardous materials.
Level of Vulnerability: Moderate
Extent: Moderate
Consequences:
- evacuations
- notification and warning
- public information
- mass care
- mass casualty /fatality
- law enforcement/traffic control
- large scale contamination issues
- mass decontamination
- overcrowded hospitals
- contaminated land and /or water
- animal issues (relocation, medical)
- environmental damage /loss
- psychological needs
€0. Page 25
Seminole County Local Mitigation Strategy (LMS)
15. Lightning
According to the National Weather Service, Central Florida is the "Lightning Capital"
of the United States. On average, lightning is responsible for more weather - related
deaths in Florida than all other weather hazards combined, and Florida has the
highest number of lightning casualties of all 50 states. The most active months for
lightning in Central Florida (Seminole County) is June - August. During these months,
the flash rates over the peninsula begin to dominate. This is due to the two sea
breezes which develop along the east and west coast. Although a sea breeze
develops along the coast along the panhandle, it is the collision of the two sea
breezes over the peninsula which causes the high flash rates during June and the
remainder of the summer season.
Central Florida also has one of the highest density lightning flashes in the world. It is
only surpassed by tropical Africa. Florida has about one million cloud -to- ground
lightning strikes each year. The number one area for fatalities is in open fields,
followed by water related areas, under trees, and driving equipment like farm
tractors. These occurred mostly in the months of June and July in the afternoon
averaging at about 4:00 p.m. Being struck by lightning does not mean it is always
fatal. There are many survivors of lightning strikes. On the 10 year average (1999-
2008) reported by the National Weather Service, an average of 42 people are killed
each year by lightning strikes in the United States. Unincorporated Seminole County
and all of its municipalities are subject to lightning strikes. The potential loss of
lightening is reflected in the TAOS reports under the thunderstorm risks.
Previous Occurrences:
Date Type Property Crop
Location or County ype Death Injured Damage Damage
Lake Mary j 09/11/1994 Lightning j 0 2 0 0
Sanford 08/13/1997 1- Lightning r r
Geneva 05/31/2002 P Lightning
F
1 0 0
Sanford Airport 1 I 06/30/2002 Lightning ri: -. ) ----
4 FO ---- 7 - 0 —
Altamonte Springs [ 07/30/2003 Lightning ri:7
0 100K 0
Lake Mary 09/25/2003 1 _ Lightning 1 -7-
1 2 [ 0 �f 0
f
Lake Mary 06/15/2004 Lightning FO ----
1 0 0
Lake Mary 06/16/2005 Lightning F - 0 ---
0 150K 0
Winter Springs 06/24/2007 Lightning j 0 0 600K OK
Page 26
SEANIVOLE COL IM )
Seminole County Local Mitigation Strategy (LMS)
Totals: 1 11 850K 0
Source: National Climatic Data Center
Buildings, infrastructure, critical facilities and housing for vulnerable populations have
some potential for impact by this disaster. However, because impact areas are
undefined, an exact value of dollar loss cannot be determined.
Statistical data related to previous occurrences was unavailable for inclusion in this
Plan, but will be developed and incorporated into the next Plan update.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Level of Vulnerability: High
Extent: Minor
Consequences:
- power outages
- agricultural damage /loss
- economic loss
- fires
16. Mass Migration
Pockets of migrant workers in Seminole County remain very low. These workers are
drawn from the local work force and migrants, if any, are transported into the area on
a daily basis to work in the farmlands of Seminole County.
The Port of Sanford and Lake Monroe Marina located in Seminole County are for
smaller vessels. The likelihood of persons using water borne craft to arrive in
Seminole County is remote, since access to waterway would begin at the mouth of
the St. Johns River in Jacksonville, Florida.
This hazard has no impact on the physical loss of buildings infrastructure, critical
facilities, and housing of vulnerable populations and therefore the value of potential
dollar loss from impact to the built environment is not relevant.
Statistical data related to previous occurrences was unavailable for inclusion in this
Plan, but will be developed and incorporated into the next Plan update.
Level of Vulnerability: Minimal
Extent: Minimal
Consequences:
- transportation /traffic control
- public health /quarantine
- law enforcement/security issues
Page 27
SEMINOLE COUNTY
I1i.1AN.1I11SA1 (thh t
Seminole County Local Mitigation Strategy (LMS)
- impact to social services
- impact on jail and detention facilities
Due to the low probability of occurrence, this hazard will not be further evaluated in
this plan related to vulnerability to people, property, critical infrastructure,
environment, economy or response operations.
17. Nuclear
The nearest nuclear power plant facility is in Crystal River, which is approximately
100 miles from Seminole County. It is important to note that nuclear waste from
hospitals as well as commercial railways may travel through the County. This is a
major concern as most railways in Seminole County travel through densely
populated areas.
Buildings, infrastructure, critical facilities and housing for vulnerable populations have
some potential for impact by this disaster. However, because impact areas are
undefined, an exact value of dollar loss cannot be determined.
Statistical data related to previous occurrences was unavailable for inclusion in this
Plan, but will be developed and incorporated into the next Plan update.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Level of Vulnerability: Minimal
Extent: Major
Consequences:
- evacuations
- notification and warning
- public information
- mass care
- mass casualty /fatality
- law enforcement/traffic control
- large scale contamination issues
- mass decontamination
- overcrowded hospitals
- contaminated land and /or water
- animal issues (relocation, medical)
- environmental damage /loss
- psychological needs
- communications failure
- civil unrest
18. Radiological
Currently there are three threat scenarios for radiological terrorism. The most
probable scenario for the near future would be a radiological dispersion device. Such
a weapon can be developed and used by any terrorist with conventional weapons
and access to radionuclides. A terrorist attack could also be made on a nuclear
SEMIIVOLE COUNTY
Page 28
Seminole County Local Mitigation Strategy (LMS)
power plant using a commercial jet, heavy munitions, or internal sabotage. Although
this would not directly affect Seminole County, officials would still have to prepare to
be a host County for those evacuating from the "hot- zone ". The worst scenario, and
the least likely, is an organization diverting an existing nuclear device or procuring
enough material and expertise to manufacture a nuclear device.
Following an event with uncontrolled radioactive material, such as a dirty bomb,
public health officials need to answer three questions to guide their response: what
were people exposed to or contaminated with, who was exposed or contaminated,
how much exposure or contamination did each person have, and did it enter the
body? Contamination can be primarily internal (that is, inside the body), primarily
external (outside the body), or a combination of both. Handheld radiation detectors,
like Geiger counters, generally are used for assessing externally deposited
contamination by certain radioactive materials and are useful for prioritizing people
for external decontamination. These detectors can be used to assess internal
contamination in some specific cases.
Internal contamination cannot be reliably quantified by clinical assessment of early
symptoms. The decision to medically treat people will depend on our ability to
rapidly and accurately identify and quantify internal contamination. To direct
appropriate medical treatment to the truly affected, we need a method to rapidly and
accurately assess internal contamination for a broad array of radionuclides. The new
methods for measurement of radionuclides are being developed to meet this need
for internal contamination and dose assessment.
Buildings, infrastructure, critical facilities and housing for vulnerable populations have
some potential for impact by this disaster. However, because impact areas are
undefined, an exact value of dollar loss cannot be determined.
Statistical data related to previous occurrences was unavailable for inclusion in this
Plan, but will be developed and incorporated into the next Plan update.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Level of Vulnerability: Minimal
Extent: Major
Consequences:
- evacuations
- notification and warning
- public information
- mass care
- mass casualty /fatality
- law enforcement/traffic control
- large scale contamination issues
- mass decontamination
- overcrowded hospitals
- contaminated land and /or water
- animal issues (relocation, medical)
- environmental damage /loss
- psychological needs
Page 29
Seminole County Local Mitigation Strategy (LMS)
- communications failure
- civil unrest
19. Sinkholes / Land Subsidence
Seminole County is susceptible to sinkhole and subsidence conditions because it is
underlain by thick carbonate deposits that are susceptible to dissolution by
circulating ground water. Florida's principal source of freshwater, ground water,
moves into and out of storage in the carbonate aquifers— some of the most
productive in the nation. Development of these ground -water resources for
municipal, industrial and agricultural water supplies creates regional ground- water-
level declines that play a role in accelerating sinkhole formation, thereby increasing
susceptibility of the aquifers to contamination from surface water drainage. Such
interactions between surface -water and ground -water resources in Florida play a
critical and complex role in the long -term management of water resources and
ecosystems of Florida's wetlands. These conditions are monitored but, if the
occurrence occurs on private property, it is the citizen's responsibility to repair the
damage. If the condition exists on public property, the Public Works Department will
take control of the situation. When citizens call, we request that they call E -911 to
report the situation. Instructions are available on the Seminole County web site
under the Emergency Management Division.
Previous Occurrences:
Month Day Year County City
Seminole Casselberry
1 1 2000
Seminole Casselberry
6 14 2000
Seminole Casselberry
6 7 2000
Seminole Forest City
6 12 2000
Seminole Sanford
6 23 2000
5 29 2002 Seminole Sanford
Seminole Sanford
5 29 2002
Seminole Sanford
11 14 2002
11 14 2002 Seminole Sanford
Seminole Tarpon Springs
9 8 2006
Source: Florida Geological Survey — Sinkhole Database
Buildings, infrastructure, critical facilities and housing for vulnerable populations have
some potential for impact by this disaster. However, because impact areas are
undefined, an exact value of dollar loss cannot be determined.
Page 30
S ai'voiE Cc )uNI7).
Seminole County Local Mitigation Strategy (LMS)
Statistical data related to previous occurrences was unavailable for inclusion in this
Plan, but will be developed and incorporated into the next Plan update.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Level of Vulnerability: Moderate
Extent: Minor
Consequences:
- notification and warning
- law enforcement/traffic control
- fire /rescue
- evacuation and re -entry
- property damage /loss
- economic disruption /loss
- agricultural loss
- public health (contamination of water supply)
- infrastructure damage /loss (water distribution and treatment
systems)
20. Terrorism
State and Local governments have primary responsibility in planning for and
managing the consequences of a terrorist incident using available resources in the
critical hours before Federal assistance can arrive. The terrorist threat may
represent Chemical, Biological, Radiological, Nuclear, Explosive (CBRNE) hazards,
and /or other threats or a combination of several hazards. The initial detection of a
Weapons of Mass Destruction (WMD) attack will likely occur at the local level by
either first responders or private entities (e.g., hospitals, corporations, etc.). The
detection of a terrorist incident involving covert biological agents will most likely occur
through the recognition of similar symptoms or syndromes by clinical in- hospital or
clinical settings. It is incumbent upon all county and municipal responders to be as
well trained as possible in WMD response. The intricacies of the effective response
demand the utmost cooperation among all responders, Federal, State, County and
Municipalities.
Terrorism is a serious issue in Florida. Terrorism increases the likelihood of mass
casualty and mass evacuation from a target area. For threats of armed violence, it is
likely that joint jurisdictional management of the operation will take effect and will be
coordinated at the County level between the Sheriff, Fire /Rescue, The Department of
Health and FDLE.
There have been no documented previous occurrences of terrorist attacks in
Seminole County.
Buildings, infrastructure, critical facilities and housing for vulnerable populations have
some potential for impact by this disaster. However, because impact areas are
undefined, an exact value of dollar loss cannot be determined. Statistical data related
to previous occurrences was unavailable for inclusion in this Plan, but will be
developed and incorporated into the next Plan update.
Page 31
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Seminole County Local Mitigation Strategy (LMS)
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
• Any critical facility identified as a terrorist target
Level of Vulnerability: Minimal
Extent: Major
Consequences:
- infectious disease control /treatment
- mass casualty /fatality
- mass panic
- inadequate law enforcement/fire /rescue resources
- large -scale contamination /decontamination issues
- large -scale evacuation
- large -scale sheltering
- search and rescue
- public information
- economic and social disruption
- psychological needs
- re -entry
- law enforcement/security
21. Tropical Cyclones (Hurricanes and Tropical Storms)
Hurricanes and tropical storms are classified as cyclones and defined as any closed
circulation developing around a low- pressure center in which the winds rotate
counter - clockwise in the Northern Hemisphere and whose diameter averages 10 to
30 miles across. A tropical cyclone refers to any such circulation that develops over
tropical waters. Tropical cyclones act as a "safety- valve," limiting the continued
build -up of heat and energy in tropical regions by maintaining the atmospheric heat
and moisture balance between the tropics and pole -ward latitudes. The primary
damaging forces associated with these storms are high -level sustained winds, heavy
precipitation and tornadoes. Coastal areas are also vulnerable to the additional
forces of storm surge, wind driven waves and tidal flooding which can be more
destructive than cyclone wind.
The key energy source for a tropical cyclone is the release of latent heat from the
condensation of warm water. Their formation requires a low- pressure disturbance,
warm sea surface temperature, rotational force from the spinning of the earth and the
absence of wind shear in the lowest 50,000 feet of the atmosphere. The majority of
hurricanes and tropical storms form in the Atlantic Ocean, Caribbean Sea and Gulf of
Mexico during the official Atlantic hurricane season, which encompasses the months
of June through November. The peak of the Atlantic hurricane season is in early to
mid - September and the average number of storms that reach hurricane intensity per
year in this basin is about six (6).
As an incipient hurricane develops, barometric pressure (measured in millibars or
inches) at its center falls and winds increase. If the atmospheric and oceanic
conditions are favorable, it can intensify into a tropical depression. When maximum
Page 32
SEMINO IE C LINTY
Seminole County Local Mitigation Strategy (LMS)
sustained winds reach or exceed 39 miles per hour, the system is designated a
tropical storm, given a name, and is closely monitored by the National Hurricane
Center in Miami, Florida. When sustained winds reach or exceed 74 miles per hour
the storm is deemed a hurricane. Hurricane intensity is further classified by the
Saffir- Simpson Scale which rates hurricane intensity on a scale of 1 to 5, with 5
being the most intense.
Wind damage from a storm itself is related to wind speed and the accompanying
pressure that is exerted on structures. When the wind speed doubles, four times
more force is exerted on a structure. Wind damage is also caused by hurricane
spawned tornadoes. All of Seminole County would be vulnerable to damage from
high winds. The greatest danger from winds will be to those living in structurally
unsound housing and mobile homes. Seminole County is not susceptible to storm
surge due to being located in the central part of the State.
In the summer of 2004, Hurricanes Charley, Frances and Jeanne impacted Seminole
County. The Emergency Operations Center was fully activated and a Local State of
Emergency was declared. County offices and schools were closed. Executive
Orders were signed prohibiting price gouging and issuing a mandatory evacuation of
mobile and manufactured homes. A mandatory curfew was issued. Public shelters
and Special Needs shelters were opened and housed a total of 5,000 residents.
Previous Occurrences:
Location or Property Crop
County Date Type Magnitude Death Injured
Damage Damage
Seminole County Tropical Storm
and all
11/13/1994 /13/1994 Gordon N/A 8 43 500K 500K
municipalities
Seminole County
and all 09/14/1999 Hurricane Floyd N/A 0 0 61.0M 0
municipalities
Seminole County r
and all 08/21/2008 Tropical Storm N/A 0 0 OK 40K
municipalities Fay
Total: 8 43 61.500M 540K
Source: National Climatic Data Center
Buildings, infrastructure, critical facilities and housing for vulnerable populations have
the potential to be impacted by this hazard. However, statistical data related to
previous occurrences was unavailable for inclusion in this Plan, and will be
developed and incorporated into the next Plan update.
Specific Geographic Areas of Vulnerability:
ro. Page 33
Seminole County Local Mitigation Strategy (LMS)
• All of Seminole County and its municipalities
Level of Vulnerability: High
Extent: Major
Consequences:
- notification and warning
- law enforcement/traffic control
- mass evacuation and re -entry
- mass care (pre and post event)
- public health
- infrastructure damage
- property damage /loss
- debris clearance
- animal issues
- long -term economic impacts
- recovery assistance programs
- economic and social disruption
- widespread psychological impacts
22. Tornadoes and Thunderstorms
A tornado is a violently rotating column of air, usually pendant to a cumulonimbus,
with circulation reaching the ground. It nearly always starts as a funnel cloud and
may be accompanied by a loud roaring noise. On a local scale, it is the most
destructive of all atmospheric phenomena. A thunderstorm that produces a tornado,
winds of at least 58 mph (50 knots), and /or hail at least 3 /4" in diameter. Structural
wind damage may imply the occurrence of a severe thunderstorm. A thunderstorm
wind equal to or greater than 40 mph (35 knots) and /or hail of at least W is defined
as approaching severe.
Florida is the State that experiences the most number of tornadoes per square mile.
Florida had an average of 52 tornadoes per year since 1961, with an average of two
fatalities per year. Florida tornadoes are generally of short duration and have a
narrower path. Because of the unpredictable pattern of storms and tornadoes and
the relatively high reoccurrence frequency, all of the State, including Seminole
County is vulnerable to damage. As the number of structures and people increase,
the potential damage and injury rates increase. Mobile and modular homes, poorly
constructed and substandard housing apartment complexes, and low rent housing
projects are extremely susceptible to damage and destruction.
In February, 1998 Seminole County was impacted by a band of major tornadoes
crossing the state, partly due to the "El Nino" weather affect of 1997 and 1998. As a
result, weather patterns creating F2 and F3 tornadoes developed on February 22
and 23 This resulted in the most devastating tornado to hit Central Florida. By the
morning of February 23' 42 people had been killed, 259 injured, 700 structures
destroyed and 3,000 structures damaged in Central Florida (Osceola, Orange,
Seminole, Volusia and Brevard County). Seminole County suffered twelve fatalities
and thirty -four injuries, primarily in the South Sanford area. There was damage to
321 homes, (42 destroyed, 260 had major damage and 19 had minimal damage).
Eighteen commercial businesses were also destroyed. The total dollar loss was
approximately $5.355 million.
Page 34
SE NONE COUNTY
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Seminole County Local Mitigation Strategy (LMS)
Fujita Scale (and Operational Enhanced Scale) for Tornadoes
FUJITA SCALE OPERATIONAL EF -SCALE
F Fastest 3 Second EF
Number 1(mp�)e Gust (mph) Number 3 Second Gust (mph)
0 40 -72 45 -78 0 65 -85
1 73 -112 79 -117 1 86 - 110
2 113 -157 118 -161 2 ! 111 -135
1 ( i
3
158 -207 162 -209 3 136 -165
4 208 -260 210 -261 4 E 166 -200
i
1
5 1 261 -318 262 -317 5 Over 200
Thunderstorms - Previous Occurrences:
Location or Date T e Property Crop
County Yp Magnitude Death Injured Damage Damage
Sanford 05/02/2004 Thunderstor 0 I 0
Wind 50 kt s. 0 0
Geneva 05/02/2004 Thunderstorm 50 kts. 0 0 0 FO
Wind
Sanford Airport 06/19/2004 Thunderstorm
p 53 kts. 0 0 0 0
Wind
Sanford 06/26/2004 Thunderstorm 60 kts. 0 0 r
Wind i
r _
Oviedo 06/28/2004 Thunderstorm 60 kts. 0 0 0 F
Wind
Seminole 08/13/2004 High Wind– 91 kts. 4 p)---
1.3B 0
County (Hurricane
Page 35
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Seminole County Local Mitigation Strategy (LMS)
Charley) j j F----
Longwood 08/18/2004 Thunderstorm 50 kts. 0 0 0 FO ----
Wind
09/04/2004 High Wind 0 0 I
Seminole
County (Hurricane 61 kts. 23.5M 82.5M
Frances)
Seminole 09/25/2004 Strong Wind 1 p
County (Hurricane 41 kts. I 70.0M 48.4M
Jeanne)
Geneva 04/07/2005 Thunderstorm 70 kts. 0 p----
0 F0
Wind
Oviedo 04/07/2005 Thunderstorm 70 kts. 0 0 150K 0
Wind
Sanford 05/24/2005 Thunderstorm 67 kts. 0 0 0
Wind 0
Sanford 06/16/2005 Thunderstorm 50 kts 0
0 FO ----
Wind
Sanford 08/06/2005 Thunderstorm I 60 kts. 0 FOT-07-0—
Wind
Sanford 07/31/2006 Thunderstorm
FO ----
0
Wind 50 kts. 0 0
Sunland 06/12/2007 Thunderstorm 50 kts. p-p- OK OK
Wind
Longwood 06/12/2007 Thunderstorm F 50 kts. { 0 0
Wind OK OK
Winter Springs 06/12/2007 Thunderstorm _60 kts. 0 0 OK OK
Wind
07/19/2007 Thunderstorm
Wind F50 kts. 0 Geneva OK FO-;---<
I
I
46 Page 36
,l \A, vi (,,(An
Seminole County Local Mitigation Strategy (LMS)
Sanford Airport 07/21/2007 Thunderstorm 0 0
p Wind 55 kts. OK OK
Lake Mary 07/21/2007 Thunderstorm 0 0
y Wind 50 kts OK O K
Lake Mary 07/21/2007 Thunderstorm 0 0
y Wind 50 kts. OK OK
Lake Mary 07/21/2007 Thunderstor r so kts. 0 0 OK OK
Wind
Fern Park 07/21/2007 Thunderstorm r so kts. 0 0 OK OK
Wind
I
Altamonte 07/21/2007 Thunderstorm 50 kts. r----° 0 OK OK
Springs Wind
Oviedo 12/16/2007 Thunderstorm 52 kts.
Wind 0 1-0---
OK 3
Sunland 12/16/2007 Thunderstor 1, 56 kts. 0 FO----
OK 6K
Wind
Geneva 12/16/2007 Thunderstor 52 kt F
OK 6K
Wind
I
r
Casselberry 02/26/2008 Thunderstor { 55 kts. 0 0 2K OK
Wind
I
Forest City 02/26/2008 Thunderstorm 50 kts. r -c--)- 0 10K OK
Wind
Winter Springs 06/29/2008 Thunderstorm 50 kts. 0 0 OK 1
—<
Altamonte !08/09/2008 Thunderstorm Wind 50 kts. 0 0 2K OK
Springs
Sunland 10/09/2008 Thunderstor 50 kts. r i-0—
0 12K OK
Wind
{
Page 37
Stuivotf CO
Seminole County Local Mitigation Strategy (LMS)
Totals: 5 0 1.394B 130.915M
Source: National Climatic Data Center
Tornadoes - Previous Occurrences
Location or Date Type Magnitude Death Injured Property Crop
County D amage Damage
Sanford 02/16/1998 Tornado FO 0 F 200K 0
[- Longwood 02/23/1998 Tornado F3 12 36 30.0M 0
Oviedo 11/07/2006 Tornado Fl 7- 0 0 1.4M OK
i
Snow Hill 04/01/2009 Tornado FO 0 0 OK OK
Casselberry 05/19/2009 Tornado FO 0 F - 0 - 1 — <
Totals: 12 36 31.700M 0
Source: National Climatic Data Center
Buildings, infrastructure, critical facilities and housing for vulnerable populations have
some potential for impact by this disaster. However, because impact areas are
undefined, an exact value of dollar loss cannot be determined.
Statistical data related to previous occurrences was unavailable for inclusion in this
Plan, but will be developed and incorporated into the next Plan update.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Level of Vulnerability: High
Extent: Minor to moderate impact
Consequences:
- power outages
- infrastructure damage (road /culvert washout)
- erosion
- property damage /loss from wind, water and fires
- fresh water flooding
- storm surge flooding (winter storms)
- evacuations (day /night, road congestion)
- agricultural damage /loss
- economic loss
Page 38
SEMINOXE C-1/NT)
Seminole County Local Mitigation Strategy (LMS)
- debris
23. Tsunami
A tsunami is a series of ocean waves generated by sudden displacements in the sea
floor, landslides, or volcanic activity. In the deep ocean, the tsunami wave may only
be a few inches high. The tsunami wave may come gently ashore or may increase in
height to become a fast moving wall of turbulent water several meters high.
There have been no documented tsunami events in Seminole County.
The probability of a tsunami affecting Seminole County is none to very low.
Consequently, this hazard will not be further evaluated in relation to vulnerability to
people, property, critical infrastructure, environment or response operations.
Level of Vulnerability: None
Extent: Minimal
24. Utility Disruption
There are two major power companies that service Seminole County, Progress
Energy and Florida Power and Light. Major disruption to power service could be
caused by severe weather or damage to the power grid. In this event, officials would
have to coordinate response to critical infrastructures and persons with special
needs. Shelters may be required for special needs clients during long term outages.
The Seminole County Division of Emergency Management maintains a critical
infrastructure list for priority power restoration.
Additional utilities in Seminole County include: water facilities, sewer /solid waste,
cable providers, telephone companies and cellular phone carriers.
There have been no previous significant utility disruptions in Seminole County.
This hazard has no impact on the physical loss of buildings infrastructure, critical
facilities, and housing of vulnerable populations and therefore the value of potential
dollar loss from impact to the built environment is not relevant.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
Level of Vulnerability: Minimal
Extent: Minor to moderate
Consequences:
- notification and warning
- public information
- law enforcement/traffic control
- communications failure
- civil unrest
delle Page 39
SEAS /. 1/t COUNT)"
liz 9A10.♦ \.61tkn(t,Ktt
Seminole County Local Mitigation Strategy (LMS)
25. Volcano
Volcanoes are not located anywhere remotely near Seminole County. There is no
threat to Seminole County for volcanic activity.
Level of Vulnerability: None
Extent: Minimal
26. Winter Storm (Extreme Cold) / Freezes
A freeze is when the surface air temperature is expected to be 32 °F or below over a
widespread area for a climatologically significant period of time. Use of the term is
usually restricted to advective situations or to occasions when wind or other
conditions prevent frost. "Killing" may be used during the growing season when the
temperature is expected to be low enough for a sufficient duration to kill all but the
hardiest herbaceous crops.
Extreme cold can immobilize an entire region. Even areas, such as Seminole
County, that normally experience mild winters can be hit with a major extreme cold
winter event. Winter storms can result in ice, localized flooding, closed highways,
and blocked roads, downed power lines and hypothermia.
In December, 1989, a cold outbreak and hard freeze affected all 67 counties in
Florida. Many daily and some monthly and all -time low temperature records were
tied or broken. Low temperatures were in the teens in north and north central Florida
and in the 20s the central and south central parts of the state. Snow and sleet fell as
far south as a Sarasota to Melbourne line, with a maximum of two to three inches in
the panhandle. Northeast Florida experienced its first white Christmas in recorded
history and airports and interstates were closed. Many traffic accidents and several
fatalities occurred on ice - covered roads. At least six people died of hypothermia and
another four in space- heater related fires. Extensive crop damage, including a loss of
about 30% of the $1.4 billion citrus crop, left tens of thousands of migrant farm
workers unemployed. Winter vegetables, berries, nursery ornamentals and fish
suffered heavy losses. Power blackouts hit hundreds of thousands of residents at
various times during the event.
In the event a winter storm or freeze were to impact the region, Seminole County and
all the municipalities would be vulnerable to the consequences of the winter storm or
freeze.
Structures are not vulnerable to the consequences of winter storms or freezes;
therefore do not have a potential dollar loss.
This hazard has no impact on the physical loss of buildings infrastructure, critical
facilities, and housing of vulnerable populations and therefore the value of potential
dollar loss from impact to the built environment is not relevant.
Statistical data related to previous occurrences was unavailable for inclusion in this
Plan, but will be developed and incorporated into the next Plan update.
Specific Geographic Areas of Vulnerability:
• All of Seminole County and its municipalities
eY40. Page 40
Seminole County Local Mitigation Strategy (LMS)
Level of Vulnerability: Moderate
Extent: Minor to moderate
Consequences:
- notification and warning
- law enforcement /traffic control
- fire /rescue
- evacuation and re -entry
- economic disruption /loss
- agricultural loss
- mass care (short and long term)
- feeding evacuated population
- public health (contamination of water supply)
- infrastructure damage /loss (water distribution and treatment
systems)
- animal issues (relocation, feeding)
- economic recovery assistance programs
Risk Estimates
The estimate of risk is based on the judgment of the planners regarding the likely
frequency of occurrence of the hazard event compared to its probable consequences.
For purposes of this analysis, "risk" is defined as a relative measure of the probability
that a hazard event will occur in comparison to the consequences or impacts of that
event. That is, if a hazard event occurs frequently, and has very high consequences,
then that hazard is considered to pose a very high risk to the affected communities. In
comparison, if a hazard event is not expected to occur frequently, and even if it did, the
consequences would be minimal, then that hazard is considered to pose a very low risk.
For the purposes of mitigation planning, the following eight (8) hazards are determined
to be minimal to low risk/impact /severity to Seminole County and its municipalities, and
will not be further evaluated in relation to vulnerability and consequences to people,
property, critical infrastructure, environment, economy and response operations:
• Civil Disorder
• Disease and Pandemic Outbreaks
• Earthquake
• Exotic Pests and Disease
• Erosion
• Mass Migration
• Tsunami
• Volcano
Seminole County has identified eighteen (18) hazards that have moderate to high risk in
relation t
0 otential frequency p c and consequences q y q ences of impact to Seminole County and its
municipalities and unincorporated areas. These include:
• Aircraft Accidents
Page 41
Seminole County Local Mitigation Strategy (LMS)
• Critical Infrastructure Disruption
• Communications Disruption
• Drought/Water Shortages
• Extreme Heat
• Fires (Wildfires and Major Urban Fires)
• Flooding (Riverine)
• Hail
• Hazardous Materials Accidents (Fixed Site and Transportation)
• Lightning
• Nuclear
• Radiological
• Sinkholes
• Terrorism
• Tropical Cyclones (Hurricanes and Tropical Storms)
• Tornadoes and Thunderstorms
• Utility Disruption
• Winter Storm (Extreme Cold) /Freezes
Because these hazards were identified as at least a moderate risk in relation to
frequency and consequences, they are further assessed in the vulnerability analysis of
this Plan. Additional information on these hazards is developed to include geographic
areas; degree of severity or magnitude; comparison of jurisdictional risk; and existing
and future structures and critical facilities.
It should be noted that some statistical hazard data was unavailable during the current
update process for this plan. For example, a process to identify estimates relating to
potential dollar losses to buildings, infrastructure, and critical facilities, both existing and
future, has not been developed for Seminole County or its jurisdictions, and will be
developed as a mitigation initiative in future revisions of the Plan.
Page 42
Seminole County Local Mitigation Strategy (LMS)
Hazard Modeling Using TAOS
The Florida Department of Community Affairs funded an update of the comprehensive
storm hazard modeling project using the TAOS model as part of the Local Mitigation
Strategy. Storm hazard modeling using TAOS is part of an effort to produce a consistent
state -wide assessment of storm hazard risk. It is useful to have a calculation of property
risk that is consistent throughout the state. The TAOS model is an integrated hazards
model that will enhance the local government's ability to do effective hazard mitigation
planning. The TAOS model can perform calculations of hazard risk for the county,
jurisdictions or specific sections (Zip Codes) as well as the entire state, and the results
are available for addition to the GIS data base. The new TAOS model data also includes
components to assess damage potential from not only storm surge, but inland flooding
and severe winds. It also looks at risk from sinkholes, earthquake and wildfire. When
interfaced with the most current Property Appraiser files, local governments are able to
p Y pp
9
more accurately determine the total number and type of structures at risk, property
values and potential loss. This greatly enhances the information available to local
governments and enhances the opportunity to implement a strategic mitigation program.
HAZUS data has not been developed for Seminole County and will be incorporated in a
mitigation strategy initiative for the next plan update cycle.
TAOS Results for Seminole County
The detailed TAOS report, by hazard event, can be found in TAOS Hazards Analysis
Appendix of this plan.
Vulnerability
The LMS Working Group has included a multi - layered approach to assessing the
vulnerability of the participating jurisdictions to future disasters. The various vulnerability
assessments build on the identification of hazards in the community and the risk that the
hazards pose to the community.
Local planners can use the hazard identification and risk estimation process to prioritize
the facilities and neighborhoods that most need to be assessed for their specific
vulnerability, for example by beginning with the jurisdictions exhibiting the highest overall
relative risk. Then, for these jurisdictions, the individual facilities, systems and
neighborhoods of Seminole County are assessed specifically for the extent of their
vulnerability to damage or disruption by the hazard events identified for the
corresponding jurisdiction, and the specific impact to the community if this occurred.
Assessing Vulnerabilities
1. Repetitive Loss Properties
The Repetitive Flood Claims Program is authorized under Section 1323 of the
National Flood Insurance Act of 1968 (42 United States Code 4030), as
amended by the Bunning - Bereuter - Blumenauer Flood Insurance Reform Act of
2004 (Public Law 108 -264). The Catalog of Federal Domestic Assistance
(CFDA) number for the RFCP is 97.092.
This program, along with the Flood Mitigation Assistance and the Severe
Repetitive Loss programs, address the acute need to reduce claims from the
National Flood Insurance Fund by reducing or eliminating the long -term risk of
flood damage to structures.
Page 43
SEMINOLE Cc l in
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Seminole County Local Mitigation Strategy (LMS)
The primary objective of the Repetitive Loss Properties Strategy is to eliminate or
reduce the damage to property and the disruption of life caused by repeated
flooding of the same properties. A specific target group of repetitive loss
properties is identified and serviced separately from other NFIP policies by the
Special Direct Facility (SDF). The target group includes every NFIP- insured
property that, since 1978 and regardless of any change(s) of ownership during
that period, has experienced:
• Four or more paid flood losses of more than $1,000 each; or
• Two paid flood losses within a 10 -year period that, in the aggregate,
equal or exceed the current value of the insured property; or
• Three or more paid losses that, in the aggregate, equal or exceed the
current value of the insured property.
Although the Repetitive Flood Claims Program is federally funded, the program is
administered through a partnership with the Florida Division of Emergency
Management (DEM), local and Native American Tribal governments and the
Federal Emergency Management Agency. The Division of Emergency
Management (DEM) has the authority and responsibility for developing and
maintaining a State Mitigation Plan, assisting local and Native American Tribal
governments in developing and maintaining Flood Mitigation Plans, reviewing
Repetitive Flood Claims Program sub - applications, recommending cost effective
sub - applications to FEMA and providing pass- through grant funds to awarded
Repetitive Flood Claims Program projects from eligible sub - applicants.
The Division of Emergency Management (DEM) is also responsible for ensuring
that projects funded by the Repetitive Flood Claims Program are completed and
that all performance and financial reporting requirements are met.
The actual database of repetitive loss properties will not be provided in this LMS
plan because of the specific address and personal information that is associated
with the information. However, specific requests for information may be
requested from any of the appropriate jurisdictions directly, or through the NFIP
at FEMA.
Through the various outreach methods in each jurisdiction that has repetitive loss
properties, an effort is being made to eliminate or reduce the risks of future
flooding to those properties through various mitigation techniques.
Each jurisdiction sends a notice to each owner of a repetitive loss property,
soliciting interest and participation in various potential grant programs, in an
attempt to mitigate their property from future flood losses. Each property owner
interested that responds to the solicitation will be prioritized utilizing the
prioritization guidelines, produced by the program in which they apply. Currently,
each jurisdiction maintains that information.
When projects come to the LMS for funding support, all projects submitted for
alternative funding opportunities are supported by the LMS regardless of the
jurisdiction and in priority as they are individually scored utilizing the LMS project
scoring criteria. Depending upon the grant program or alternative funding
source, those sources or grant programs may have their own prioritization
process, which may compliment or negate the local prioritization. A list of
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Seminole County Local Mitigation Strategy (LMS)
interested people can be found in each of the jurisdictions repetitive loss property
coordinator offices.
2008 Repetitive Loss Property Data
Seminole City of City of City of City of City of City of City of
County Altamonte Casselberry Lake Longwood Oviedo Sanford Winter
120289 Springs Mary 120292 Springs
120290 120291 120416 120293 120294 120295
# of
Properties
by Type:
Residential 18 0 0 0 0 1 5 0
Commercial 0 5 0 0 0 0 1 0
Institutional 0 0 0 0 0 0 0 0
Total # of
Repetitive 18 5 0
Loss 0 0 1 0 0
Properties
# of
Repetitive
Loss
Properties
in 10 5 0 0 0 0 0 0
Special
Flood
Hazard
Area
Total 449,121.35 222,383.21 0 0 0 37164.22 108243.39 0
Payments
Land Use Trends and Potential Loss
The LMS Working Group recognizes that the way in which land is utilized,
especially land within known hazard -prone areas, is a key measure of community
vulnerability, because some land uses, such as for residential or industrial
development, can be more susceptible to disaster - related damages than others.
Therefore, analysis of land use trends is included in the Mitigation 20/20TM
approach to mitigation plan development. For the Seminole County mitigation
plan, this analysis is done on a jurisdiction- specific basis because individual
jurisdictions have the most significant planning and legal control over land use
policy. Information on land uses and land use trends are therefore described in
the individual jurisdiction mitigation plans presented in the back of this plan.
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Seminole County Local Mitigation Strategy (LMS)
Those jurisdictions that have completed this analysis, two reports contain
information on land use trends within the jurisdiction: 1] "Current Land Uses and
the Potential for New Development," which identifies the estimated amount of
land still available for new development, as well as summarizing the relative
extent of current land uses, 2] "Future Land Uses and General Development
Trends," which summarize the jurisdiction's rate of development of vacant lands
or redevelopment of existing properties, and, if the jurisdiction has an adopted
land use plan, the desired relative extent of planned land uses.
All jurisdictions reported they were growing either slightly or rapidly, and all are
participants in the National Flood Insurance Program. Pressure for development
into wetland areas continues to be an ongoing issue in the county. The report,
"Future Land Uses and General Development Trends," given in the individual
jurisdiction mitigation plans, can be reviewed and used as background to
describe the types of controls in place over future development to avoid or
minimize risk. The LMS Working Group recognizes that its efforts, particularly to
identify the areas of the participating jurisdictions at risk from various hazards, is
a key factor in guiding the careful use of land to minimize future vulnerabilities to
disaster. When needed and desired by a specific jurisdiction, modifications to the
plans, ordinances, codes and similar policies can be proposed as mitigation
initiatives for incorporation into this plan.
Number and Value of Properties at Risk
This estimation process can be illustrated as follows:
Jurisdiction Hazard
Identification and Jurisdiction
Risk Estimation Profile
/ Define
Characteristics of
Specific Hazards Individual Number of
Threatening the Neighborhoods structures, Average
Jurisdiction
Value
Estimate the Percent of
Structures at Risk, by
Relevant Hazard Type for
the Neighborhood
Number Total Value of
of Structures Average Dollar Value �
at Risk for a Specific of Structures in Structures at Risk
Hazard Neighborhood �• for a Specific
Hazard
3. Critical Facility and Structures
Seminole County has conducted an inventory of existing buildings, infrastructure,
and critical facilities located within the hazard areas boundaries. For purpose of
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Seminole County Local Mitigation Strategy (LMS)
this LMS these include emergency service facilities, medical facilities, public
works facilities, schools, emergency /evacuation shelters, fire and police stations,
emergency operation center, facilities used by special needs populations, and
any other facilities identified by the LMS Working Group.
The identified potentially at -risk critical facilities and structures for Seminole
County are listed in the Critical Facility and Structure List maintained by
Seminole County Emergency Mangement. The Seminole County Comprehensive
Plan contains additional information in regard to vulnerable existing buildings,
infrastructure, and critical facilities. The Critical Facility and Structure List
contains confidential information so therefore is not published with this plan.
4. Individual Vulnerability Assessment Results
Within the LMS Working Group's planning concept, vulnerability assessments
are conducted by personnel from the department, agency or neighborhood
whose property is being evaluated. Specific and detailed results of the
vulnerability assessments are presented in two reports (1) Estimated Extent of
Impact, by Hazard and (2) Comparison of Jurisdictional Relative Risk. These
specific vulnerability assessments provide the detailed basis for identifying the
needs for mitigation initiatives, which can then be formulated and proposed for
incorporation into the plan by the corresponding agency or organization from that
jurisdiction.
An important aspect of the vulnerability assessment process is to determine if the
local jurisdictions have policies, plans, codes or requirements in place that are
intended to avoid or minimize the vulnerability of the community to the hazards
that threaten it. These policies and programs can take many forms, such as
building and land use codes, hazard mitigation and emergency response plans,
requirements for facility operations and maintenance, etc. If local government's
policies, plans and requirements effectively address the hazards posing the
greatest risk to the community, then the vulnerability to future disasters can be
reduced.
The policy framework is another indicator of the degree to which each jurisdiction
is managing the risks of, and vulnerabilities to, future disasters. By accessing the
policy framework to identify the mitigation - related policies listed, a gross measure
of the attention paid to different kinds of hazards may be assumed by total
number of policy and program statements, reflecting the jurisdictions' attempts to
control or otherwise manage the existing and future vulnerabilities to the hazards.
It is important to note that the Seminole County mitigation planning process
intentionally encourages participating jurisdictions to continue to access this
information and to propose non - structural mitigation initiatives for the plan to
strengthen their mitigation policy and program framework. Because
modifications or enhancements to the policy and program framework are typically
the responsibility of individual jurisdictions, the existing policies and program of
the jurisdictions are further listed in the individual jurisdiction mitigation plans
given in Tab 3. These individual jurisdiction plans also include, where applicable,
ro
p posed modifications to existing plans and programs in order to improve the
policy framework of the jurisdictions for control of risks and vulnerabilities.
e v ils Page 47
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Seminole County Local Mitigation Strategy (LMS)
V. Mitigation Goals
The LMS Working Group has established a number of goals and objectives to guide its work in
the development of this plan. The goals and objectives help to focus the efforts of the group in
the mitigation planning effort to achieve an end result that matches the unique needs,
capabilities and desires of the participating jurisdictions.
In the Mitigation 20/20 planning approach, the goals are established for both the entire planning
area and all of the participating jurisdictions in a process that can be described as follows: near
the beginning of the planning process, a list of suggested goals and objectives selected from the
Mitigation 20 /20TM software was circulated to members of the LMS Working Group. The goals
selected by the LMS Working Group are related to the broad mitigation needs and capabilities
of the communities involved, rather than addressing a specific hazard type or category.
Therefore, the Seminole County mitigation goals and objectives, by definition, are "multi- hazard"
in scope and can be described as statements of the desired "mitigation- related capabilities" that
will be present in each participating jurisdiction in the future as the goals are achieved."
Mitigation Actions
The goals established by the LMS Working Group are considered to be broad, general
guidance that define the long -term direction of the planning. Each goal statement has
one or more objectives that provide a more specific framework for actions to be taken by
the LMS Working Group and its participants. The objectives define actions or results that
can be placed into measurable terms by the LMS Working Group, and translated into
specific assignments by the LMS Working Group for implementation by the participants
in the LMS Working Group and associated agencies and organizations.
The objectives selected by the LMS Working Group are intended to create a specific
framework for guiding the development of proposed mitigation initiatives for
incorporation into the plan. Whenever feasible, the planning participants have
associated each proposed mitigation initiative with the objective statement the initiative
is intended to achieve. By associating a mitigation initiative with a specific objective, the
proposed initiative is also, of course, intended to help achieve the broader goal
statement to which the objective corresponds. Proposing mitigation initiatives that are
consistent with the selected objectives is a principal mechanism for the LMS Working
Group participants to achieve the stated goals of the mitigation planning program.
Seminole County Local Mitigation Strategy Goals and Objectives:
Goal 1 - Local government shall make every reasonable effort to identify,
develop, implement, and reduce hazard vulnerability through effective
mitigation programs.
Objective 1.1 — Identify hazards, risk areas and vulnerabilities in the
community using historic and scientific data.
Objective 1.2 — Develop programs to target these vulnerabilities through
effective public outreach, mitigation projects, and ordinances /zoning
regulation.
Objective 1.3 — Measure effectiveness of mitigation initiatives
implemented in the community through documentation, disaster after
action /improvement plans, and public comment.
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SEMINOLE COUNTY
Seminole County Local Mitigation Strategy (LMS)
Goal 2 - All sectors of the community will work together to create a disaster
resistant community.
Objective 2.1 - Specific interagency agreements and collaboration will be
used to improve multi - jurisdiction / multi- agency coordination.
Objective 2.2 — Seek public and private sector organizations input to
promote hazard mitigation programming throughout the community.
Objective 2.3 — Develop and administer outreach programs to gain
participation in mitigation programs by business, industry, institutions and
community groups.
Objective 2.4 — Continuity of operations programs will promote community
resilience.
Objective 2.5 - Local elected governing bodies will promulgate the local
mitigation plan and support community mitigation programming.
Goal 3 - Reduce the vulnerability of critical infrastructures and public
facilities from the effects of all hazards.
Objective 3.1 — Detect emergency situations and promptly initiate
emergency response operations.
Objective 3.2 — Retrofit or relocate critical infrastructure to withstand
impact of disasters.
Objective 3.3 - Utility and communications systems will be evaluated to
ensure resilience. Retrofit and relocation projects may be submitted to
strengthen systems.
Objective 3.4 - Relocate, retrofit or modify evacuation routes to ensure
safe passage before, during and after disaster events.
Objective 3.5 — Evaluate and retrofit evacuation shelters, critical
emergency services and medical facilities to ensure operability during and
after disaster events.
Objective 3.6 - Assess routes to key health care facilities to remove
vulnerabilities and possible blockage as a result of a disaster.
Objective 3.7 — Assess and acquire adequate resources, equipment and
supplies to meet victims' health and safety needs after a disaster.
Goal 4 — Strengthen continuity planning for local government operations to
avoid significant disruptions.
Objective 4.1 - Community redevelopment plans will guide decision -
making and resource allocation by local government in the aftermath of a
disaster.
Objective 4.2 — Protect vital local government records and documents
from impacts of disasters.
Objective 4.3 — Continuity of Operations Plans and programs will assist
local government in retrofitting or relocating critical assets.
Objective 4.4 - Buildings and facilities used for the routine operations of
government may be retrofitted or relocated to withstand the impacts of
disasters.
Objective 4.5 - Redundant equipment, facilities, and /or supplies will
strengthen resilience in local government operations after a disaster.
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Seminole County Local Mitigation Strategy (LMS)
Goal 5 - Develop policies and regulation to support effective hazard
mitigation programming throughout the community.
Objective 5.1 — Develop programs to ensure appropriate emphasis in
resource allocation and decision - making.
Objective 5.2 — Develop land use policies, plans and regulations to
discourage or prohibit inappropriate location of structures or infrastructure
components in areas of high risk.
Objective 5.3 - Develop building and land development codes that are
effective in addressing the hazards threatening the community.
Objective 5.4 - Protect high hazard natural areas from new or continuing
development.
Objective 5.5 - Participate fully in the National Flood Insurance Program
and the associated Community Rating System.
Objective 5.6 — Locate new local government facilities outside of hazard
areas and designed to withstand impact of hazards.
Objective 5.7 - Incorporate techniques to minimize the physical or
operational vulnerability to disasters in all reconstruction or rehabilitation
of local government facilities.
Objective 5.8 - Establish and enforce regulations to ensure that public
and private property maintenance is consistent with minimizing
vulnerabilities to disaster.
Goal 6 - Encourage economic vitality of the community by promoting
businesses continuity education, disaster planning, and diversifying
employment opportunities.
Objective 6.1 — Promote disaster resistant community businesses and
industries.
Objective 6.2 — Strengthen components of the infrastructure needed by
the community's businesses and industries from impact of disaster.
Objective 6.3 — Review needs of key employers in the community through
communication and coordination activities.
Objective 6.4 - Establish programs, facilities and resources to support
business resumption activities.
Objective 6.5 — Encourage diversification of employment base in the
community.
Objective 6.6 - Implement programs to address public perceptions of
community condition and functioning in the aftermath of a disaster.
Goal 7 — Strengthen community's infrastructure to minimize significant
disruption from a disaster.
Objective 7.1 - Construct and /or retrofitted transportation facilities to
minimize the potential for disruption during a disaster.
Objective 7.2 — Strengthen water and sewer services in the community.
Objective 7.3 - Encourage hazard mitigation programs by private sector
organizations owning or operating key community utilities.
Objective 7.4 — Work with telecommunications companies to support
strengthening of systems and facilities serving the community.
Objective 7.5 - Reduce vulnerability to disasters of schools, libraries,
museums, and other institutions important to the daily lives of the
community.
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Seminole County Local Mitigation Strategy (LMS)
Goal 8 — Develop and administer public outreach activities to members of
the community in vulnerabilities and hazards, techniques to minimize
vulnerability, and promote individual mitigation projects.
Objective 8.1 - Establish and implement education programs in risk
communication and hazard mitigation.
Objective 8.2- Provide outreach activities to facilitate access to
information needed to understand vulnerability to disasters and effective
mitigation techniques.
Objective 8.3 — Encourage all interested individuals to participate in
hazard mitigation planning and training activities.
Objective 8.4 — Provide technical training in mitigation planning and
programming.
Objective 8.5 — Ensure adequate multi -modal systems of emergency
notification.
Objective 8.6 — Establish and implement programs for removal, relocation
or retrofitting of vulnerable structures hazard areas.
Addressing Known Risks and Vulnerabilities
In addition to developing proposed mitigation initiatives to achieve the established goals
and objectives, an important emphasis of the LMS Working Group is to also include
proposed mitigation initiatives in its plan that will address known vulnerabilities of
important facilities and neighborhoods to the impacts of future natural, technological or
human - caused disasters. Basically, because the goals and objectives have been
established to make the communities of the planning area more "disaster resistant" by
reducing known vulnerabilities to future disasters, it is important in the plan to document
those initiatives that are intended to address identified vulnerabilities of facilities,
systems and neighborhoods, as well as to strengthen the mitigation - related policy
framework of the participating jurisdictions.
There are a number of initiatives that are not directly associated with specific facilities or
neighborhoods that have been assessed for their vulnerabilities, but address other
mitigation - related concerns, such as storm water drainage "trouble spots" in the county.
While they may not affect an entire neighborhood or critical roadway, they can create
unsafe conditions or damage properties. The proposed addition of vital communications
equipment to mitigate specific community -wide vulnerabilities impacts the
interconnectedness of critical facilities, and is generally intended to benefit the whole
community.
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Seminole County Local Mitigation Strategy (LMS)
National Flood Insurance Program (NFIP) Compliance
All jurisdictions are active participants in the NFIP. In an effort to ensure continued compliance with the NFIP, each
participating community will:
1. Continue to enforce their adopted Floodplain Management Ordinance requirements, which include regulating all
new development and substantial improvements in Special Flood Hazard Areas (SFHA).
2. Continue to maintain all records pertaining to floodplain development, which shall be available for public
inspection
3. Continue to notify the public when there are proposed changes to the floodplain ordinance or Flood Insurance
Rate Maps.
4. Maintain the map and Letter of Map Change repositories.
5. Continue to promote Flood Insurance for all properties.
6. Continue their Community Rating System outreach programs.
Community Name Policies In -Force Insurance In -Force whole $ Written Premium In -Force $
Altamonte Springs, City of 927 $158,068,600 $345,001
Casselberry, City of 400 $80,348,800 $225,155
Lake Mary, City of 319 $88,688,400 $137,119
Longwood, City of 319 $81,272,900 $150,488
Oviedo, City of 662 $185,568,300 $241,749
Sanford, City of 651 $155,655,500 $330,944
Seminole County 5,001 $1,183,584,700 $1,820,886
Winter Springs, City of 698 $185,356,500 $247,394
FEMA: Current as of 01/31/2009
l i
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Seminole County Local Mitigation Strategy (LMS)
The Community Rating System (CRS) is a voluntary program for NFIP - participating communities. The goals of the CRS are
to reduce flood losses, to facilitate accurate insurance rating, and to promote the awareness of flood insurance. The CRS
has been developed to provide incentives for communities to go beyond the minimum floodplain management requirements
to develop extra measures to provide protection from flooding. The incentives are in the form of premium discounts.
Community Number Community Name CRS Entry Current Current % % Status(3)
Date Effective Class Discount Discount
Date for for Non -
SFHA(1) SFHA(2)
120290 Altamonte Springs, 10/1/94 10/1/96 8 10 5 C
City of
120292 Longwood, City of 10/1/96 10/1/96 9 5 5 C
120289 Seminole County 10/1/91 10/1/00 7 15 5 C
120295 Winter Springs, City of 10/1/93 05/1/08 7 15 5 C
(1) For the purpose of determining CRS discounts, all AR and A99 zones are treated as non -SFHAs (2) Increase in discount for Classes 1 -6 effective May 1, 2001.
(3) Status: C = Current, R = Rescinded
It must be emphasized that in many cases, detailed information regarding the areas potentially impacted by a specific
hazard, as well as its potential health and safety, property, environmental and economic impacts of that hazard, may not
have been available. Further, it has not been the intent of the LMS Working Group, nor have funding resources been
available, to conduct extensive new studies to obtain such information solely for the purposes of the development of this
mitigation plan. Therefore, it has often been necessary to rely on the informed judgment of knowledgeable local officials to
identify hazards and derive estimates of the risk each poses to the community.
e Tv_ Page 53
Seminole County Local Mitigation Strategy (LMS)
C. Implementation
1. Prioritization of Actions
The LMS Working Group pis responsible for identifying projects and activities that
the Seminole County and its municipalities want to implement that will support
the tasks identified in the Goals and Objectives section. Projects will be
submitted to the LMS by eligible applicants. To accomplish this responsibility,
the LMS Working Group will do the following:
1. Establish a schedule for the participants to submit proposed mitigation
initiatives to be considered for incorporation into the next edition of the
Seminole County Local Mitigation Strategy.
2. Ensure the use of Mitigation 20/20TM methodology by all participating
agencies and organizations in Seminole County for the identification,
characterization and prioritization of proposed mitigation initiatives.
3. Distribute the guidance, training or information incorporated into
Mitigation 20/2OTM as needed to facilitate complete and accurate
submittals by the participants,
4. Review each proposed mitigation initiative received for completeness,
adherence to the prescribed methodology, the validity of the
characterization information and data used by the participant, and the
likelihood that the proposal will actually mitigate the hazard(s) or
vulnerability(ies) of concern,
5. Prepare a cost /benefit analysis of the proposed mitigation initiatives,
6. Compare proposed mitigation initiatives with others already incorporated
into the plan or being submitted during the current planning period to
ensure an absence of conflict or redundancy in purpose,
7. If needed, return the proposed mitigation initiatives to the submitting
agency or organization for additional information or analysis and
resubmitted, and
8. Prepare a recommendation for action by the LMS Working Group to
incorporate the proposed mitigation initiative into the Seminole County
Local Mitigation Strategy and to consent to listing the proposed initiative
on the project list.
9. On request of the agency or organization attempting to implement an
approved mitigation initiative, the LMS Working Group will certify to any
identified party that the proposed mitigation initiative has been approved
for incorporation into the strategy.
10. The priority of implementation is based on the score given to the project
by analysis from the LMS Working Group.
Changes in prioritization of the project rankings could change for several
reasons. Environmental conditions, such as a pending drought, would warrant
more aggressive or rapid implementation of proposed mitigation initiatives
associated with this hazard, even if their overall priority score was less than
those addressing flood. In this way, adjustments in the implementation of the
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Seminole County Local Mitigation Strategy (LMS)
plan can be made. Conditions that could warrant a change in the implementation
schedule of the mitigation initiatives could include but are not limited to:
• Declared Disasters;
• Funding Availability;
• New or Revised Policy Development;
• Plan Revision Cycles;
• Legal or Fiscal Restraints;
• Life Safety Priorities.
Mitigation Project Priority List
The detailed project priority list can be found in LMS Project Priority List
Appendix of this plan. This Appendix (Excel Spreadsheet) also includes the
completed and deleted project lists.
Responsible for Mitigation Actions
Once incorporated into the Seminole County Local Hazard Mitigation Plan, the
agency or organization proposing the initiative becomes responsible for its
implementation. This may mean developing a budget for the effort, or making
application to state and federal agencies for financial support for implementation.
This is the approach utilized by the LMS Working Group because only the
jurisdiction or organization itself has the authority or responsibility to implement
its proposed mitigation initiatives. The current status of implementation of
mitigation initiatives incorporated into the plan is discussed in the next section.
In this plan implementation process, the LMS Working Group continues to
monitor the implementation status of initiatives, to assign priorities for
implementation and to take other such actions to support and coordinate
implementation of initiative by the involved organizations. In reality, it is the
implementation of proposed initiatives, along with other actions by the
organizations participating in the planning to maintain, refine and expand the
technical analyses used in the planning, that constitutes the process to
implement the mitigation plan.
Cost - benefit - analysis
When a project is submitted for the LMS for inclusion in the Project List with the
intention of seeking funds from various grant programs a cost/benefit analysis
worksheet will be submitted with the proposed project for consideration by the
LMS Working Group. This worksheet can be found in the Cost - Benefit - Analysis
Appendix of this plan.
Actions Completed
A mitigation project that has been funded and completed will be added to the
Completed Project List. The LMS Completed Project List is maintained and
housed within the Department of Public Safety, Division of Emergency
Management. This list can be found in the LMS Project Priority List Appendix,
Completed List Tab.
Seminole County Local Mitigation Strategy (LMS)
The LMS project list can change frequently as funding, various local, state and
federal requirements, etc. change and /or are updated. For deleted or deferred
mitigation projects a list is maintained with each project listed including an
explanation as to why the project was deleted or deferred. This list can be found
in the LMS Project Priority List Appendix, Deleted List Tab.
V. Plan Maintenance
A. LMS Monitoring and Evaluation
The LMS Plan will be housed in the in the Department of Public Safety, Division
of Emergency Management for Seminole County. The LMS Working Group
meets on a quarterly basis at a minimum, as well as after times of natural
disaster events, and any other time deemed appropriate by the Working Group
Chairperson, to update and revise the LMS. The criteria used to evaluate the
LMS document and activities should include, but not be limited to the following:
• Federal and /or State Requirements
• Changes in development trends and land use that could affect
infrastructure (water, sewer, stormwater, roads, traffic, etc.)
• Storms or other natural processes that have altered Seminole
County's hazard areas (wind damage, flooding, erosion, etc.)
• Completion of existing mitigation projects and introduction of new
goals
• Changes in policy, procedure or code
• Changes in building codes and practices
• Review of legislative actions that could affect funding of mitigation
efforts
• Changes in Flood Insurance Rate Maps, National Flood Insurance
Program, etc.
On an annual basis the Department of Public Safety, Division of Emergency
Management will generate a LMS progress report that will evaluate the
successes or areas of improvement for the LMS. The report will be available to
the public, as well as provided to all jurisdictional governing bodies. This annual
report also satisfies the CRS program requirements for an annual report for the
floodplain management plan. This will allow people to re- acquaint themselves
with the LMS document and the processes that it identifies, so any
recommendations, suggestions, and updates, can be properly reviewed and
weighed for consistency with the direction of the LMS.
The plan is periodically reviewed and adopted by the participating jurisdictions'
governing bodies to ensure that the mitigation actions taken by their
organizations are consistent with each community's larger vision and goals, as
well as their overall unique needs and circumstances. The adoption process
includes instructing the jurisdictions' agencies and organizations to continue to
refine, expand and implement the plan.
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Seminole County Local Mitigation Strategy (LMS)
B. LMS Updates
Every five years, the LMS plan goes up for formal review to FEMA, and a FEMA
approved LMS mitigation plan is what keeps our communities eligible for various
Federal and state grant programs.
Each year, the LMS committee will review the current plan to make note of any
modifications to be placed in the new plan. These notes will be used to develop
the new plan. Additional projects will be collected to address the notes made
each year. Damage assessment reports will be collected from disasters to
determine what types of mitigation efforts may be necessary. These mitigation
issues will be used in the creation of the new plan.
Citizen input will be requested at various times throughout the year. These
activities include the annual Severe Weather Awareness Week, request for
information through the new "Prepare Seminole!" campaign, and at various
community outreach activities. All citizen inputs will be brought up an quarterly
LMS meetings to be held at the Seminole County Emergency Operations Center.
Each year, a list of meetings times and dates will be posted to the website.
All notes and mitigation efforts will be put together to develop a draft LMS for
update. Once the document is ready for review, LMS committee members will
conduct public meetings to solicit additional input before the LMS plan, any
supporting documentation, and the criteria checklist will be first submitted to the
Florida Division of Emergency Management for review, and then forwarded to
FEMA for review and approval.
It will be anticipated the review process could take several months. The
Seminole County LMS Working Group will establish a more aggressive meeting
schedule in preparation for the updated /revised LMS to be resubmitted for
approval for each 5 -year FEMA formal review.
Following adoption or approval of the plan by all parties involved, the respective
agencies and organizations will continue to implement the plan, to expand its
scope, continue its analyses, and take other such continuing action to maintain
the planning process. This includes action by the LMS Working Group to
routinely incorporate proposed mitigation initiatives into the plan, without the
necessity to also continuously solicit the formal approval of the plan by the
jurisdictions' governing bodies. This process is administered by Department of
Public Safety, Division of Emergency Management.
C. Implementation through Existing Plans and Programs
One of the methods to most effectively implement the LMS is to propose and
implement initiatives that will further the goals and objectives in the LMS.
Initiatives listed, when implemented will serve to mitigate existing issues. Other
current plans, when reviewed and updated will be compared to the initiatives and
objectives of the LMS to ensure that all planning activities work toward the
common goal. Some identified planning mechanisms that have been utilized in
the past include (but have not been limited to) flood plan ordinances, county and
municipal comprehensive plans, land development codes, comprehensive
emergency management plan.
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Seminole County Local Mitigation Strategy (LMS)
� )
Seminole County Division of Emergency Management has oversight of the
process for incorporating the LMS into other local government planning
mechanisms. Some plans, such as the Comprehensive Plan and CEMP, have
prescribed processes that provide the opportunity for integration of LMS goals
and objectives at scheduled intervals. During these planning cycles, Emergency
Management reviews the LMS for consistency and identifies opportunities to link
the LMS to the revised plans. As an example, information collected for the LMS
risk assessment has been used to update the CEMP.
As part of the planning integration process, Emergency Management staff also
continuously seeks plan - development opportunities that are not part of existing
planning cycles, but are relevant to the goals and objectives of the LMS. The
process for linking the LMS to planning projects includes identifying mitigation -
related elements in the plans under development, and assuring that policies and
initiatives in the LMS are considered and addressed. Strategic planning is an
example of this, as the process includes looking at both short- and long -term
needs and addressing gaps and initiatives through policy and budget.
Public education and outreach is a large portion of the Local Mitigation Strategy.
The LMS is incorporated in the "Prepare Seminole" campaign which is a
community action program to help all citizens, businesses, and other
organizations prepare and mitigate damages. This campaign was launched in
2005 after tornadoes affected the Central Florida area. The public outreach
initiative uses LMS goals and objectives to encourage mitigation efforts.
The L
MS oats are used to help strengthen 9 p g en vulnerable critical facilities by using
other grants, funding opportunities, and policy. The State Homeland Security
Grant has been used to strengthen interoperable communication systems that
are used during disasters. In addition, these grants have strengthened
capabilities of the Emergency Operations Center to provide redundant
communications with other EOCs in the region and the State of Florida EOC in
Tallahassee, Florida.
The building department uses strict building codes to prevent loss from fires,
natural disasters, as well as man -made events. In the City of Altamonte Springs,
fire sprinkler codes were adopted to prevent the loss of homes and buildings
from fires. Strict planning and building codes are used to minimize the
vulnerability of newly constructed buildings throughout Seminole County.
Particular highlights of the LMS Working Group efforts to implement the
mitigation plan through other plans and programs include updates to the
Comprehensive Emergency Management Plan (using the hazards /risk
assessment), comprehensive future land use plans of Seminole County and
municipalities. During the updating process, both of these documents will be
revised to limit development in hazard areas, etc. These examples demonstrate
that each participating jurisdiction is committed to incorporating mitigation
principles and concepts into their normal operations and activities via their
existing planning and programming processes.
Page 58
RESOLUTION NO. 2010 -13
A RESOLUTION OF THE CITY COMMISSION OF THE CITY OF
WINTER SPRINGS, FLORIDA ADOPTING THE SEMINOLE
COUNTY LOCAL MITIGATION STRATEGY PLAN
WHEREAS, the City Commission of Winter Springs is charged with the duty of
protecting the health, safety, and welfare of its citizens; and
WHEREAS, the communities of Seminole county are vulnerable to a wide range of
natural and technological disasters, as demonstrated by the very high human and economic
costs of events that have impacted the State in the past decade; and
WHEREAS, the City adopted the initial Local Mitigation Strategy on September 25,
2000 and the updated Local Mitigation Strategy Plan on plan February 14, 2005 which
identified and prioritized hazardous and susceptible structures and developed programs that
reduced the City's vulnerability to disasters; and
WHEREAS, the Local Mitigation Strategy document now needs to be updated again
to comply wit the Federal Hazard Mitigation Planning Standards contained in 44 CFR201-
206(b) — (d); and
WHEREAS, adoption of this document by the City will provide for continued grant
funding for Seminole county and its municipalities' local mitigation initiatives, as approved
through the Federal Emergency Management Agency (FEMA);
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COMMISSION
OF THE CITY OF WINTER SPRINGS, FLORIDA, THAT:
The updated Local Mitigation Strategy document for 2010 through 2015 is hereby
adopted.
Passed and adopted this 12th day of April, 2010. ;
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