Nassau County weather alerts
There are no active weather alerts for Nassau County, FL right now.
Since 2016 the National Weather Service has issued about 1,483 alerts that included Nassau County, roughly 148 a year. The most common is the severe thunderstorm warning (301 from 2016 to 2025). The last tornado warning was issued on May 28, 2025. 32 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include Nassau County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Charlton County, Camden County, Duval County, Baker County.
Nassau County alert history
Alert events that included Nassau County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 301 | 43 | October 3, 2026 |
| Flood Advisory | 199 | 38 | October 10, 2026 |
| Dense Fog Advisory | 148 | 14 | November 9, 2026 |
| Freeze Warning | 106 | 17 | March 18, 2026 |
| Wind Advisory | 99 | 9 | October 24, 2026 |
| Flood Warning | 84 | 3 | October 11, 2026 |
| Freeze Watch | 81 | 12 | March 18, 2026 |
| Heat Advisory | 68 | 22 | August 21, 2026 |
| Coastal Flood Advisory | 66 | 4 | October 29, 2026 |
| Frost Advisory | 62 | 5 | February 25, 2026 |
| Tornado Watch | 49 | 2 | March 16, 2026 |
| Flood Watch | 32 | 3 | October 8, 2026 |
| Tornado Warning | 31 | 0 | May 28, 2025 |
| Cold Weather Advisory | 25 | 8 | February 24, 2026 |
| Tropical Storm Warning | 19 | 0 | October 7, 2024 |
| Severe Thunderstorm Watch | 17 | 1 | July 29, 2026 |
| Coastal Flood Warning | 14 | 1 | October 24, 2026 |
| Flash Flood Warning | 12 | 6 | October 10, 2026 |
| Red Flag Warning | 12 | 7 | May 7, 2026 |
| Tropical Storm Watch | 11 | 0 | September 24, 2024 |
| Extreme Heat Watch | 11 | 1 | July 29, 2026 |
| Extreme Heat Warning | 11 | 2 | August 18, 2026 |
| Hurricane Watch | 7 | 0 | October 7, 2024 |
| Storm Surge Warning | 5 | 0 | October 8, 2024 |
| Fire Weather Watch | 4 | 3 | May 7, 2026 |
| Hurricane Warning | 3 | 0 | September 9, 2017 |
| Winter Storm Watch | 2 | 0 | January 22, 2025 |
| Winter Storm Warning | 2 | 0 | January 22, 2025 |
| Winter Weather Advisory | 2 | 0 | January 23, 2025 |
| Extreme Cold Watch | 0 | 1 | February 1, 2026 |
| Extreme Cold Warning | 0 | 1 | February 1, 2026 |
Tornado history in Nassau County
32 tornadoes have been recorded in Nassau County since 1950, injuring 4 people. That ranks 43 of 67 counties in Florida. The most recent was on September 3, 2024 (rated EF0).
Strongest tornadoes in Nassau County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 25, 1973 | F1 | Duval County | 12.1 mi | 20 yd | 0 | 0 |
| August 4, 2016 | EF1 | Nassau County | 3.7 mi | 200 yd | 0 | 0 |
| April 7, 2022 | EF1 | Nassau County | 3.2 mi | 30 yd | 0 | 0 |
| October 30, 1985 | F1 | Nassau County | 3 mi | 20 yd | 0 | 0 |
| February 27, 1984 | F1 | Nassau County | 1 mi | 10 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| September 3, 2024 | EF0 | Nassau County | 0.1 mi | 25 yd | 0 | 0 |
| April 7, 2022 | EF1 | Nassau County | 3.2 mi | 30 yd | 0 | 0 |
| September 11, 2017 | EF0 | Nassau County | 6 mi | 100 yd | 0 | 0 |
| September 11, 2017 | EF0 | Nassau County | 10.7 mi | 100 yd | 0 | 0 |
| August 4, 2016 | EF1 | Nassau County | 3.7 mi | 200 yd | 0 | 0 |
About Nassau County
- Population: 104,376 (2024 estimate)
- State: Florida
- NOAA Weather Radio SAME code: 012089 (how to use it)