FEMA flood map notices
Flood map changes in Westchester County, New York
FEMA has published 2 flood hazard notices covering Westchester County, New York since November 2023. The most recent, map revision flood hazard determinations, was published Dec 18, 2024.
Notices for Westchester County
- Dec 18, 2024Map revisionChanges in Flood Hazard DeterminationsAlso covers 12 other counties
- Apr 22, 2024Map revisionChanges in Flood Hazard DeterminationsAlso covers 18 other counties
Also covered by these notices
FEMA often studies whole watersheds, so one notice can span several counties.
- Maricopa County, AZ
- Pima County, AZ
- Pinal County, AZ
- Contra Costa County, CA
- Napa County, CA
- Riverside County, CA
- San Diego County, CA
- Ventura County, CA
- Duval County, FL
- Lake County, FL
- Maui County, HI
- Cook County, IL
- Lake County, IL
- Will County, IL
- Marion County, IN
- Shelby County, IN
- Johnson County, KS
- Van Buren County, MI
- Washoe County, NV
- Erie County, NY
- Herkimer County, NY
- Butler County, OH
- Lorain County, OH
- Lucas County, OH
- Richland County, SC
- Brazos County, TX
- La Salle County, TX
- Pierce County, WA
- Outagamie County, WI
What these notices mean
- Proposed
- FEMA has new draft flood maps. This starts a 90-day window when owners can appeal with technical data. It's the best time to act.
- Final
- Appeals are resolved. The new maps usually take effect about six months later, when lenders start applying the new zones.
- Map revision
- A Letter of Map Revision changes one stretch of the map, often after a levee, channel project or new survey.
Notices are organized by county and community, so a notice for your county doesn't mean your property is changing zones. What flood zones mean