Alternative Text Description for Flood Hazard Map

TABLE OF CONTENTS

MAP OVERVIEW

This map displays flood hazard zones throughout Florida and portions of neighboring states, showing areas designated by FEMA for the Special Flood Hazard Area and insurance rating purposes. The map identifies two specific flood risk categories: areas with a 0.2% annual chance of flooding (500-year flood) and areas with a 1% annual chance of flooding with depth less than 1 foot (100-year shallow flooding). These zones appear as small, scattered orange patches primarily concentrated along Florida's extensive coastline and inland waterways, representing locations where flood risk has been formally assessed and mapped.

GEOGRAPHIC CONTEXT

The map covers the state of Florida in its entirety, along with portions of southern Georgia and southern Alabama. Major cities labeled on the map include Miami, Tampa, Orlando, Jacksonville, Tallahassee, Pensacola, Gainesville, Cape Coral, and Palm Bay on the Florida coast. In neighboring states, Albany, Dothan, and Valdosta are visible. The map extends from the Atlantic Ocean on the east to the Gulf of America on the west and south, showing Florida's position as a peninsula bordered by water on three sides. The coastline is clearly delineated, including the Florida Panhandle in the northwest, the Gulf coast curving around to the southwest, and the Atlantic coast along the eastern edge including distinctive features near Palm Coast and the southern tip near Miami.

KEY INSIGHTS

Flood hazard zones in this map are predominantly concentrated along Florida's coastal areas, with notable clusters appearing near major population centers including the Miami-Coral Springs area in the southeast, the Tampa-St. Petersburg region on the central Gulf coast, the Cape Coral area on the southwest coast, and the Tallahassee area in the Panhandle. The distribution pattern reveals that flood hazards follow the coastline closely, with inland occurrences being relatively sparse. The eastern Atlantic coast from Jacksonville through Palm Bay and down to Miami shows more extensive coastal flood mapping than many inland areas. The Florida Keys and southwestern coastal communities show particularly concentrated clusters of mapped flood zones. Central Florida around Orlando and the interior portions of the state show minimal flood hazard designations compared to coastal regions, though some scattered zones are present near major water bodies.

VISUAL ELEMENTS

Flood Hazard Layer

This layer represents flood zones designated by FEMA for flood insurance rating and Special Flood Hazard Area designation, showing specific annual probability categories of flooding.

0.2% Annual Chance Flood Hazard (lighter orange)

Appearance:

Displayed as small patches in lighter orange color, representing the 500-year flood zone.

Distribution:

Scattered sparsely throughout coastal Florida, with minimal inland presence. These features appear less frequently than the 1% annual chance zones.

Notable locations:

Visible along portions of the Gulf coast near the Panhandle, scattered locations along the southwest coast, and intermittent patches along the Atlantic coast.

Spatial patterns:

These zones appear as isolated, small polygons that follow coastal contours and are generally smaller in extent than the 1% annual chance zones. They show no strong linear pattern and appear distributed opportunistically where topography and hydrology create 500-year flood conditions.

1% Annual Chance Flood with Depth Less Than 1 Foot (darker orange)

Appearance:

Displayed as small patches in darker orange color, representing 100-year flood zones with shallow flooding.

Distribution:

More prevalent than the 0.2% zones, concentrated heavily along coastal areas throughout Florida with particular density in southern and western coastal regions.

Notable locations:

Strong concentrations appear near Miami and Coral Springs in southeast Florida, around Cape Coral and Fort Myers on the southwest coast, along the Tampa Bay metropolitan area, scattered throughout the Panhandle coast near Pensacola and Tallahassee, and along the Atlantic coast near Palm Bay and the Palm Coast area.

Spatial patterns:

These zones form irregular coastal patterns that closely follow shoreline configurations. They cluster near urban coastal areas and show a strong preference for low-lying coastal geography. The pattern suggests shallow flooding risk in areas just above the primary flood zones, creating a buffer-like distribution along developed coastlines.

Overlapping Patterns

The two flood hazard categories appear to exist in proximity to each other in many coastal areas, suggesting graduated flood risk zones where the less frequent 0.2% zones may extend beyond or adjacent to the more frequent 1% shallow flood zones. The spatial relationship indicates a zoning approach that classifies different risk levels in similar geographic contexts.

SYMBOL GUIDE

ADDITIONAL INFORMATION

This map represents specific subtypes of FEMA flood zones and does not display all flood hazard categories. Other flood zone designations that may exist in the source data are not visible at this representation. The map focuses specifically on the 0.2% annual chance zones and shallow 1% annual chance zones, which are used for insurance rating and regulatory purposes. Users should note that additional flood zones may exist in these areas but are not depicted in this particular thematic view. The sparse appearance of zones across large areas does not necessarily indicate absence of flood risk, but rather represents the specific categories selected for display from the comprehensive DFIRM database.

DATA CONTEXT

Data Source:

The data originates from the Digital Flood Insurance Rate Map (DFIRM) Database maintained by the Federal Emergency Management Agency (FEMA). The database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data where available. The data represents formally designated flood zones used for insurance rating and Special Flood Hazard Area classification.

Data source layer name: DFIRM_FLDHAZ_DEC24

Definition Query:

The map displays a filtered subset of the complete flood hazard database, showing only two specific flood zone subtypes: areas with 0.2% annual chance flood hazard (500-year flood) and areas with 1% annual chance flooding with depth less than 1 foot (shallow 100-year flooding). Other flood zone categories present in the source dataset are excluded from this view.

Scale Information:

The map shows a regional scale covering the entire state of Florida and portions of neighboring states. At this scale, individual flood zone polygons appear as small patches, and fine detail of flood zone boundaries is not discernible. This scale is appropriate for understanding regional distribution patterns of these specific flood hazard types rather than property-level flood zone determination.

Coordinate System:

NAD_1983_HARN_Florida_GDL_Albers (WKID 3087)

Time Period of Content:

The dataset is dated December 2024, reflecting flood hazard designations current as of that date.

Limitations:

This map displays only two specific flood zone subtypes from the comprehensive DFIRM database and does not represent all flood hazards in the mapped area. Additional flood zones including higher-risk categories are not shown in this view. The data represents formally mapped flood zones, and unmapped areas may still contain flood risk that has not been assessed through the FEMA flood mapping process. The small scale of the map means that individual property-level determinations cannot be made from this visualization.

Map Coverage:

The map extends across the entire state of Florida from the Georgia and Alabama borders in the north to the southern tip of the Florida Keys, and from the Atlantic Ocean in the east to the Gulf of America in the west. Portions of southern Georgia including Albany and Valdosta, and southern Alabama including Dothan and Pensacola are included for geographic context.

The alternative text description of this map was AI-generated and may contain inaccuracies.