Delaware County weather alerts
There are no active weather alerts for Delaware County, NY right now.
Since 2016 the National Weather Service has issued about 1,098 alerts that included Delaware County, roughly 110 a year. The most common is the severe thunderstorm warning (245 from 2016 to 2025). The last tornado warning was issued on August 27, 2026. 10 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 Delaware County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Schoharie County, Greene County, Wayne County, Otsego County.
Delaware County alert history
Alert events that included Delaware County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 245 | 38 | September 3, 2026 |
| Flood Advisory | 131 | 0 | January 10, 2024 |
| Winter Weather Advisory | 121 | 10 | November 12, 2026 |
| Flood Warning | 90 | 4 | August 7, 2026 |
| Severe Thunderstorm Watch | 79 | 12 | August 27, 2026 |
| Wind Advisory | 65 | 1 | March 13, 2026 |
| Flood Watch | 63 | 4 | September 2, 2026 |
| Flash Flood Warning | 51 | 10 | August 28, 2026 |
| Snow Squall Warning | 44 | 4 | February 26, 2026 |
| Winter Storm Watch | 36 | 2 | February 22, 2026 |
| Winter Storm Warning | 33 | 2 | February 22, 2026 |
| Frost Advisory | 26 | 2 | May 22, 2026 |
| Cold Weather Advisory | 23 | 4 | February 8, 2026 |
| Tornado Warning | 20 | 8 | August 27, 2026 |
| Tornado Watch | 11 | 2 | July 21, 2026 |
| Heat Advisory | 11 | 1 | July 14, 2026 |
| Freeze Warning | 10 | 1 | May 12, 2026 |
| Extreme Cold Warning | 10 | 1 | February 7, 2026 |
| Dense Fog Advisory | 9 | 3 | August 21, 2026 |
| Freeze Watch | 6 | 0 | October 10, 2025 |
| High Wind Warning | 4 | 0 | November 5, 2025 |
| Extreme Cold Watch | 3 | 1 | February 7, 2026 |
| High Wind Watch | 3 | 0 | November 5, 2025 |
| Blizzard Warning | 2 | 0 | March 2, 2018 |
| Extreme Heat Watch | 1 | 1 | July 1, 2026 |
| Ice Storm Warning | 1 | 0 | December 29, 2019 |
| Extreme Heat Warning | 0 | 1 | July 1, 2026 |
Tornado history in Delaware County
10 tornadoes have been recorded in Delaware County since 1950, injuring 12 people. That ranks 20 of 62 counties in New York. The most recent was on August 12, 2023 (rated EF0).
Strongest tornadoes in Delaware County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 31, 1998 | F3 | Tioga County | 62 mi | 200 yd | 0 | 12 |
| October 1, 1986 | F2 | Delaware County | 0.1 mi | 10 yd | 0 | 0 |
| May 24, 2004 | F1 | Broome County | 6 mi | 100 yd | 0 | 0 |
| June 26, 1998 | F1 | Delaware County | 3.5 mi | 100 yd | 0 | 0 |
| September 25, 2022 | EF1 | Delaware County | 2.3 mi | 150 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| August 12, 2023 | EF0 | Delaware County | 3.7 mi | 150 yd | 0 | 0 |
| September 25, 2022 | EF1 | Delaware County | 2.3 mi | 150 yd | 0 | 0 |
| April 19, 2013 | EF0 | Chenango County | 3.2 mi | 200 yd | 0 | 0 |
| May 24, 2004 | F1 | Broome County | 6 mi | 100 yd | 0 | 0 |
| June 26, 1998 | F1 | Delaware County | 3.5 mi | 100 yd | 0 | 0 |
About Delaware County
- Population: 44,191 (2024 estimate)
- State: New York
- NOAA Weather Radio SAME code: 036025 (how to use it)