Sullivan County weather alerts
There are no active weather alerts for Sullivan County, NY right now.
Since 2016 the National Weather Service has issued about 889 alerts that included Sullivan County, roughly 89 a year. The most common is the severe thunderstorm warning (168 from 2016 to 2025). The last tornado warning was issued on July 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 Orange County, Pike County, Wayne County, Ulster 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 | 168 | 27 | October 16, 2026 |
| Winter Weather Advisory | 117 | 8 | March 6, 2026 |
| Flood Advisory | 109 | 0 | January 10, 2024 |
| Severe Thunderstorm Watch | 76 | 12 | October 16, 2026 |
| Flood Watch | 65 | 3 | September 2, 2026 |
| Wind Advisory | 61 | 1 | March 13, 2026 |
| Flash Flood Warning | 36 | 8 | August 7, 2026 |
| Winter Storm Watch | 35 | 2 | February 22, 2026 |
| Winter Storm Warning | 30 | 2 | February 22, 2026 |
| Flood Warning | 27 | 3 | August 7, 2026 |
| Snow Squall Warning | 24 | 2 | January 1, 2026 |
| Heat Advisory | 22 | 1 | July 14, 2026 |
| Cold Weather Advisory | 20 | 5 | February 8, 2026 |
| Frost Advisory | 19 | 0 | October 9, 2025 |
| Dense Fog Advisory | 14 | 2 | May 26, 2026 |
| Tornado Warning | 13 | 3 | July 21, 2026 |
| Tornado Watch | 11 | 1 | July 21, 2026 |
| Freeze Warning | 9 | 1 | May 12, 2026 |
| Extreme Cold Warning | 9 | 1 | February 7, 2026 |
| Freeze Watch | 5 | 0 | October 10, 2025 |
| High Wind Watch | 4 | 0 | November 5, 2025 |
| Extreme Cold Watch | 3 | 1 | February 7, 2026 |
| High Wind Warning | 3 | 0 | February 16, 2025 |
| Red Flag Warning | 2 | 0 | April 3, 2019 |
| Blizzard Warning | 2 | 1 | February 22, 2026 |
| Extreme Heat Watch | 2 | 1 | July 1, 2026 |
| Ice Storm Warning | 2 | 0 | February 15, 2021 |
| Extreme Heat Warning | 1 | 1 | July 1, 2026 |
Tornado history in Sullivan County
11 tornadoes have been recorded in Sullivan County since 1950, injuring 9 people. That ranks 16 of 62 counties in New York. The most recent was on September 25, 2025 (rated EF0).
Strongest tornadoes in Sullivan County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 22, 2023 | EF2 | Sullivan County | 10 mi | 300 yd | 0 | 0 |
| May 9, 1961 | F2 | Sullivan County | 6.8 mi | 250 yd | 0 | 4 |
| June 9, 1972 | F2 | Sullivan County | 0.3 mi | 40 yd | 0 | 2 |
| October 13, 1990 | F1 | Sullivan County | 3 mi | 107 yd | 0 | 0 |
| July 21, 2003 | F1 | Sullivan County | 3 mi | 200 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| September 25, 2025 | EF0 | Sullivan County | 16 mi | 150 yd | 0 | 0 |
| April 22, 2023 | EF2 | Sullivan County | 10 mi | 300 yd | 0 | 0 |
| July 13, 2014 | EF1 | Sullivan County | 0.8 mi | 270 yd | 0 | 0 |
| July 21, 2003 | F1 | Sullivan County | 3 mi | 200 yd | 0 | 0 |
| June 2, 2000 | F0 | Sullivan County | 1 mi | 200 yd | 0 | 0 |
About Sullivan County
- Population: 80,450 (2024 estimate)
- State: New York
- NOAA Weather Radio SAME code: 036105 (how to use it)