Sullivan County weather alerts
There are no active weather alerts for Sullivan County, TN right now.
Since 2016 the National Weather Service has issued about 709 alerts that included Sullivan County, roughly 71 a year. The most common is the severe thunderstorm warning (144 from 2016 to 2025). The last tornado warning was issued on July 28, 2026. 2 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 Sullivan County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Washington County, Scott County, Johnson County, Hawkins County.
Sullivan County alert history
Alert events that included Sullivan County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 144 | 25 | September 21, 2026 |
| Flood Advisory | 134 | 23 | September 21, 2026 |
| Wind Advisory | 58 | 2 | October 10, 2026 |
| Freeze Warning | 56 | 0 | April 7, 2024 |
| Dense Fog Advisory | 52 | 5 | November 6, 2026 |
| Frost Advisory | 37 | 1 | May 3, 2026 |
| Flood Warning | 36 | 0 | August 13, 2025 |
| Winter Weather Advisory | 33 | 0 | December 5, 2025 |
| Flood Watch | 31 | 7 | August 12, 2026 |
| Flash Flood Warning | 30 | 9 | August 17, 2026 |
| Freeze Watch | 27 | 0 | November 1, 2023 |
| Severe Thunderstorm Watch | 20 | 4 | August 17, 2026 |
| Winter Storm Watch | 11 | 2 | January 30, 2026 |
| Winter Storm Warning | 11 | 2 | January 30, 2026 |
| Tornado Watch | 7 | 0 | May 20, 2025 |
| Cold Weather Advisory | 6 | 4 | February 2, 2026 |
| Tornado Warning | 5 | 2 | July 28, 2026 |
| Red Flag Warning | 3 | 0 | March 1, 2025 |
| Extreme Cold Watch | 2 | 0 | January 20, 2025 |
| High Wind Watch | 2 | 0 | September 27, 2024 |
| High Wind Warning | 2 | 0 | September 27, 2024 |
| Extreme Cold Warning | 1 | 0 | December 23, 2022 |
| Heat Advisory | 1 | 1 | June 30, 2026 |
Tornado history in Sullivan County
2 tornadoes have been recorded in Sullivan County since 1950, injuring 10 people. That ranks 91 of 95 counties in Tennessee. The most recent was on July 27, 2014 (rated EF1).
Strongest tornadoes in Sullivan County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| October 1, 1977 | F1 | Sullivan County | 16.2 mi | 77 yd | 0 | 10 |
| July 27, 2014 | EF1 | Sullivan County | 0.5 mi | 50 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 27, 2014 | EF1 | Sullivan County | 0.5 mi | 50 yd | 0 | 0 |
| October 1, 1977 | F1 | Sullivan County | 16.2 mi | 77 yd | 0 | 10 |
About Sullivan County
- Population: 162,703 (2024 estimate)
- State: Tennessee
- NOAA Weather Radio SAME code: 047163 (how to use it)