St. Johns County weather alerts
There are no active weather alerts for St. Johns County, FL right now.
Since 2016 the National Weather Service has issued about 1,425 alerts that included St. Johns County, roughly 143 a year. The most common is the severe thunderstorm warning (328 from 2016 to 2025). The last tornado warning was issued on January 19, 2025. 68 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 St. Johns County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Flagler County, Clay County, Duval County, Putnam County.
St. Johns County alert history
Alert events that included St. Johns County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 328 | 51 | October 10, 2026 |
| Flood Advisory | 288 | 44 | October 10, 2026 |
| Dense Fog Advisory | 114 | 11 | November 8, 2026 |
| Flood Warning | 95 | 2 | October 7, 2026 |
| Wind Advisory | 94 | 7 | October 24, 2026 |
| Coastal Flood Advisory | 84 | 6 | October 29, 2026 |
| Heat Advisory | 63 | 22 | August 21, 2026 |
| Tornado Warning | 46 | 0 | January 19, 2025 |
| Tornado Watch | 43 | 3 | May 2, 2026 |
| Frost Advisory | 34 | 2 | February 25, 2026 |
| Freeze Warning | 30 | 10 | February 24, 2026 |
| Flash Flood Warning | 29 | 3 | October 9, 2026 |
| Flood Watch | 26 | 2 | October 8, 2026 |
| Freeze Watch | 22 | 8 | February 24, 2026 |
| Coastal Flood Warning | 21 | 3 | October 24, 2026 |
| Cold Weather Advisory | 19 | 8 | February 24, 2026 |
| Tropical Storm Warning | 15 | 0 | October 7, 2024 |
| Extreme Heat Watch | 11 | 1 | July 29, 2026 |
| Extreme Heat Warning | 11 | 2 | August 18, 2026 |
| Severe Thunderstorm Watch | 10 | 1 | July 29, 2026 |
| Red Flag Warning | 9 | 5 | May 7, 2026 |
| Tropical Storm Watch | 9 | 0 | September 24, 2024 |
| Hurricane Watch | 8 | 0 | October 7, 2024 |
| Hurricane Warning | 5 | 0 | October 7, 2024 |
| Storm Surge Warning | 5 | 0 | October 8, 2024 |
| Fire Weather Watch | 4 | 2 | May 7, 2026 |
| High Wind Warning | 1 | 0 | November 5, 2021 |
| Winter Weather Advisory | 1 | 0 | January 22, 2025 |
| Extreme Cold Watch | 0 | 1 | February 1, 2026 |
| Extreme Cold Warning | 0 | 1 | February 1, 2026 |
Tornado history in St. Johns County
68 tornadoes have been recorded in St. Johns County since 1950, injuring 21 people. That ranks 21 of 67 counties in Florida. The most recent was on May 29, 2025 (rated EF0).
Strongest tornadoes in St. Johns County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| February 7, 1971 | F3 | St. Johns County | 13.1 mi | 200 yd | 0 | 0 |
| April 15, 1958 | F3 | St. Johns County | 3.6 mi | 73 yd | 0 | 9 |
| April 4, 1973 | F2 | Alachua County | 39 mi | 67 yd | 0 | 4 |
| April 24, 1995 | F2 | Putnam County | 10 mi | 350 yd | 0 | 5 |
| April 9, 1961 | F2 | St. Johns County | 5.1 mi | 200 yd | 0 | 2 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 29, 2025 | EF0 | St. Johns County | 1.6 mi | 15 yd | 0 | 0 |
| April 11, 2024 | EF1 | St. Johns County | 6.7 mi | 310 yd | 0 | 1 |
| April 3, 2024 | EF0 | St. Johns County | 0.3 mi | 125 yd | 0 | 0 |
| September 11, 2023 | EF0 | St. Johns County | 0 mi | 5 yd | 0 | 0 |
| February 14, 2021 | EF0 | St. Johns County | 0 mi | 10 yd | 0 | 0 |
About St. Johns County
- Population: 334,928 (2024 estimate)
- State: Florida
- NOAA Weather Radio SAME code: 012109 (how to use it)