Updated Flood Maps Alter Risks in Select Areas
Published Date: 8/6/2025
Notice
Summary
Some communities have new or updated flood risk info based on fresh science, changing flood zones and water levels on official maps. If you live or own property in these areas, your flood insurance rules and costs might change, so check the new maps and community numbers. These updates kick in as soon as the new letters are issued, helping everyone stay safer and smarter about flood risks.
Analyzed Economic Effects
2 provisions identified: 0 benefits, 0 costs, 2 mixed.
Flood Maps Change Local Risk
You may live or own property in a community where Base Flood Elevations (BFEs), Special Flood Hazard Area (SFHA) boundaries, flood zone designations, or the regulatory floodway were changed based on new scientific or technical data. Those map changes revise the Flood Insurance Rate Maps (FIRMs) and supporting Flood Insurance Study (FIS) reports and could change how flood risk is officially classified for your property.
New Maps Apply Immediately To Policies
When FEMA issues a Letter of Map Revision (LOMR), the revised FIRM and any updated FIS portions take effect immediately for the listed community. The current effective community number shown in the notice must be used for all new flood insurance policies and policy renewals.
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Key Dates
Department and Agencies
Related Federal Register Documents
2026-15944, Changes in Flood Hazard Determinations
New or modified Base (1-percent annual chance) Flood Elevations (BFEs), base flood depths, Special Flood Hazard Area (SFHA) boundaries or zone designations, and/or regulatory floodways (hereinafter referred to as flood hazard determinations) as shown on the indicated Letter of Map Revision (LOMR) for each of the communities listed in the table below are finalized. Each LOMR revises the Flood Insurance Rate Maps (FIRMs), and in some cases the Flood Insurance Study (FIS) reports, currently in effect for the listed communities.
2026-15946, Changes in Flood Hazard Determinations
New or modified Base (1-percent annual chance) Flood Elevations (BFEs), base flood depths, Special Flood Hazard Area (SFHA) boundaries or zone designations, and/or regulatory floodways (hereinafter referred to as flood hazard determinations) as shown on the indicated Letter of Map Revision (LOMR) for each of the communities listed in the table below are finalized. Each LOMR revises the Flood Insurance Rate Maps (FIRMs), and in some cases the Flood Insurance Study (FIS) reports, currently in effect for the listed communities.
2026-15943, Proposed Flood Hazard Determinations
Comments are requested on proposed flood hazard determinations, which may include additions or modifications of any Base Flood Elevation (BFE), base flood depth, Special Flood Hazard Area (SFHA) boundary or zone designation, or regulatory floodway on the Flood Insurance Rate Maps (FIRMs), and where applicable, in the supporting Flood Insurance Study (FIS) reports for the communities listed in the table below. The purpose of this notice is to seek general information and comment regarding the preliminary FIRM, and where applicable, the FIS report that the Federal Emergency Management Agency (FEMA) has provided to the affected communities. The FIRM and FIS report are the basis of the floodplain management measures that the community is required either to adopt or to show evidence of having in effect in order to qualify or remain qualified for participation in the National Flood Insurance Program (NFIP).
2026-15942, Final Flood Hazard Determinations
Flood hazard determinations, which may include additions or modifications of Base Flood Elevations (BFEs), base flood depths, Special Flood Hazard Area (SFHA) boundaries or zone designations, or regulatory floodways on the Flood Insurance Rate Maps (FIRMs) and where applicable, in the supporting Flood Insurance Study (FIS) reports have been made final for the communities listed in the table below. The FIRM and FIS report are the basis of the floodplain management measures that a community is required either to adopt or to show evidence of having an effect in order to qualify or remain qualified for participation in the Federal Emergency Management Agency's (FEMA's) National Flood Insurance Program (NFIP).
2026-15938, Proposed Flood Hazard Determinations
Comments are requested on proposed flood hazard determinations, which may include additions or modifications of any Base Flood Elevation (BFE), base flood depth, Special Flood Hazard Area (SFHA) boundary or zone designation, or regulatory floodway on the Flood Insurance Rate Maps (FIRMs), and where applicable, in the supporting Flood Insurance Study (FIS) reports for the communities listed in the table below. The purpose of this notice is to seek general information and comment regarding the preliminary FIRM, and where applicable, the FIS report that the Federal Emergency Management Agency (FEMA) has provided to the affected communities. The FIRM and FIS report are the basis of the floodplain management measures that the community is required either to adopt or to show evidence of having in effect in order to qualify or remain qualified for participation in the National Flood Insurance Program (NFIP).
2026-15941, Final Flood Hazard Determinations
Flood hazard determinations, which may include additions or modifications of Base Flood Elevations (BFEs), base flood depths, Special Flood Hazard Area (SFHA) boundaries or zone designations, or regulatory floodways on the Flood Insurance Rate Maps (FIRMs) and where applicable, in the supporting Flood Insurance Study (FIS) reports have been made final for the communities listed in the table below. The FIRM and FIS report are the basis of the floodplain management measures that a community is required either to adopt or to show evidence of having an effect in order to qualify or remain qualified for participation in the Federal Emergency Management Agency's (FEMA's) National Flood Insurance Program (NFIP).
Previous / Next Documents
Previous: 2025-14873, Changes in Flood Hazard Determinations
Some communities are getting updated flood maps that show new flood risks and boundaries. These changes affect homeowners, businesses, and local officials by changing flood insurance rules and possibly costs. The updates are official now, so folks should check their flood zones and insurance needs soon to stay protected and avoid surprises.
Next: 2025-14875, Proposed Flood Hazard Determinations
FEMA is asking communities and residents to review and comment on new flood risk maps that might change flood zones or water levels. These updates could affect flood insurance rules and costs, so it’s important for those in the listed areas to pay attention and respond by the deadline. Getting these maps right helps keep everyone safer and insurance programs running smoothly.