FloodZoneMap.org

Flash Flood — Nassau, FL

Sep 11, 2017

Hurricane Irma's eye passed west of the local forecast area, with the region on the storm's turbulent east side. Widespread tropical storm force winds with gusts to hurricane force were felt across much of the area, with the strongest winds surging up the Florida east coast during the pre-dawn hours of Sept. 11th. Extensive tree and power line damage occurred across the local area from the winds. One of the greatest local impacts exacerbated by Irma's rainfall and storm surge was river flooding.

Source: NOAA National Weather Service Storm Events Database (event 720498). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Nassau, FL

This event is one of many recorded floods in Nassau County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Nassau County flood data →

More Flood Stories

Tropical Storm1 death

Nassau, FL · Aug 21, 2008

Tropical Storm Fay moved slowly north out of Caribbean Sea, then cut across south and central Florida into the Atlantic Ocean. Fay then slowly curved west and made landfall in the vicinity for Flagler Beach and Daytona Beach on Aug 21st.

Read the full account →
Tropical Storm$10.0M damage

Coastal Nassau, FL · Oct 6, 2016

Category 3 Hurricane Matthew track northward along the Florida Atlantic Coast Thursday October 7th, and then NNE remaining about 50 east of Mayport at the closest approach Friday morning October 8th.

Read the full account →
Flood$25K damage

Nassau, FL · Dec 17, 2023

A strong surface low deepened across the eastern Gulf of Mexico as high pressure dominated northeast of the region creating very strong onshore flow.

Read the full account →
Coastal Flood

Coastal Nassau, FL · Oct 9, 2025

An extended duration local nor'easter wind event developed October 9th and persisted through the 12th between high pressure wedging down the SE US coast and a sharpening coastal trough axis over the local coastal waters.

Read the full account →