FEMA flood map notices
Flood map changes in Grenada County, Mississippi
FEMA has published 2 flood hazard notices covering Grenada County, Mississippi since November 2023. The most recent, final flood hazard determinations, was published Aug 21, 2026.
Notices for Grenada County
- Aug 21, 2026FinalFinal Flood Hazard DeterminationsAlso covers 3 other counties
- Oct 24, 2024ProposedProposed Flood Hazard DeterminationsAlso covers 1 other county · Appeal period closed Jan 22, 2025
Also covered by these notices
FEMA often studies whole watersheds, so one notice can span several counties.
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