Sullivan County weather alerts
There are no active weather alerts for Sullivan County, IN right now.
Since 2016 the National Weather Service has issued about 850 alerts that included Sullivan County, roughly 85 a year. The most common is the flood warning (236 from 2016 to 2025). The last tornado warning was issued on June 21, 2026. 11 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 Greene County, Knox County, Vigo County, Clark 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 |
|---|---|---|---|
| Flood Warning | 236 | 24 | August 15, 2026 |
| Severe Thunderstorm Warning | 116 | 37 | October 15, 2026 |
| Severe Thunderstorm Watch | 57 | 13 | November 11, 2026 |
| Wind Advisory | 53 | 5 | April 2, 2026 |
| Flood Advisory | 50 | 19 | October 16, 2026 |
| Dense Fog Advisory | 46 | 4 | May 28, 2026 |
| Flood Watch | 39 | 10 | August 11, 2026 |
| Winter Weather Advisory | 39 | 1 | March 2, 2026 |
| Freeze Warning | 34 | 0 | October 24, 2025 |
| Heat Advisory | 30 | 7 | September 1, 2026 |
| Tornado Watch | 29 | 5 | June 21, 2026 |
| Flash Flood Warning | 28 | 4 | June 27, 2026 |
| Frost Advisory | 27 | 4 | October 19, 2026 |
| Freeze Watch | 13 | 0 | October 24, 2025 |
| Tornado Warning | 10 | 11 | June 21, 2026 |
| Cold Weather Advisory | 8 | 4 | January 28, 2026 |
| Winter Storm Watch | 7 | 1 | January 24, 2026 |
| Winter Storm Warning | 7 | 1 | January 24, 2026 |
| Red Flag Warning | 6 | 0 | April 20, 2023 |
| High Wind Warning | 4 | 1 | March 15, 2026 |
| Extreme Heat Watch | 3 | 0 | August 27, 2024 |
| Extreme Heat Warning | 3 | 1 | June 30, 2026 |
| High Wind Watch | 2 | 0 | January 12, 2024 |
| Extreme Cold Watch | 1 | 0 | January 30, 2019 |
| Extreme Cold Warning | 1 | 2 | January 27, 2026 |
| Fire Weather Watch | 1 | 0 | October 14, 2022 |
Tornado history in Sullivan County
11 tornadoes have been recorded in Sullivan County since 1950. That ranks 79 of 92 counties in Indiana. The most recent was on August 12, 2019 (rated EF1).
Strongest tornadoes in Sullivan County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 29, 1963 | F3 | Sullivan County | 23.9 mi | 50 yd | 0 | 0 |
| May 27, 1973 | F2 | Sullivan County | 77.9 mi | 50 yd | 0 | 0 |
| June 11, 1957 | F2 | Sullivan County | 0.2 mi | 70 yd | 0 | 0 |
| September 5, 1969 | F2 | Sullivan County | 0.1 mi | 10 yd | 0 | 0 |
| March 14, 1957 | F1 | Sullivan County | 5.2 mi | 10 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 12, 2019 | EF1 | Sullivan County | 1.7 mi | 100 yd | 0 | 0 |
| April 27, 2011 | EF0 | Sullivan County | 0.1 mi | 20 yd | 0 | 0 |
| June 17, 1990 | F0 | Sullivan County | 0.1 mi | 10 yd | 0 | 0 |
| June 2, 1990 | F0 | Sullivan County | 0.1 mi | 30 yd | 0 | 0 |
| April 28, 1990 | F0 | Sullivan County | 0.2 mi | 30 yd | 0 | 0 |
About Sullivan County
- Population: 20,768 (2024 estimate)
- State: Indiana
- NOAA Weather Radio SAME code: 018153 (how to use it)