Delaware County weather alerts
There are no active weather alerts for Delaware County, OK right now.
Since 2016 the National Weather Service has issued about 1,600 alerts that included Delaware County, roughly 160 a year. The most common is the severe thunderstorm warning (322 from 2016 to 2025). The last tornado warning was issued on June 14, 2026. 64 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 McDonald County, Cherokee County, Benton County, Adair 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 | 322 | 36 | September 20, 2026 |
| Flood Advisory | 229 | 26 | July 12, 2026 |
| Heat Advisory | 161 | 31 | September 17, 2026 |
| Flood Warning | 114 | 2 | June 15, 2026 |
| Wind Advisory | 92 | 5 | May 18, 2026 |
| Dense Fog Advisory | 88 | 8 | November 11, 2026 |
| Severe Thunderstorm Watch | 88 | 16 | July 4, 2026 |
| Flood Watch | 80 | 5 | October 14, 2026 |
| Flash Flood Warning | 61 | 8 | June 27, 2026 |
| Winter Weather Advisory | 59 | 0 | December 1, 2025 |
| Tornado Watch | 58 | 9 | November 3, 2026 |
| Freeze Warning | 54 | 1 | November 13, 2026 |
| Tornado Warning | 52 | 5 | June 14, 2026 |
| Red Flag Warning | 28 | 4 | March 26, 2026 |
| Freeze Watch | 23 | 0 | November 10, 2025 |
| Extreme Heat Warning | 18 | 6 | August 16, 2026 |
| Frost Advisory | 15 | 1 | November 8, 2026 |
| Cold Weather Advisory | 15 | 1 | January 31, 2026 |
| Fire Weather Watch | 13 | 4 | March 26, 2026 |
| Winter Storm Warning | 11 | 1 | January 23, 2026 |
| Winter Storm Watch | 9 | 1 | January 23, 2026 |
| Extreme Cold Warning | 3 | 2 | January 27, 2026 |
| Extreme Cold Watch | 3 | 1 | January 24, 2026 |
| High Wind Warning | 2 | 0 | March 14, 2025 |
| Snow Squall Warning | 1 | 0 | December 22, 2022 |
| High Wind Watch | 1 | 0 | March 14, 2025 |
| Extreme Heat Watch | 0 | 1 | July 21, 2026 |
Tornado history in Delaware County
64 tornadoes have been recorded in Delaware County since 1950, injuring 36 people. That ranks 34 of 77 counties in Oklahoma. The most recent was on June 17, 2025 (rated EF1).
Strongest tornadoes in Delaware County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| March 12, 2006 | F3 | Cherokee County | 29 mi | 440 yd | 0 | 8 |
| April 7, 1980 | F3 | Mayes County | 24.8 mi | 440 yd | 0 | 4 |
| May 9, 1959 | F3 | Mayes County | 23.2 mi | 880 yd | 0 | 3 |
| May 20, 1957 | F3 | Mayes County | 20.4 mi | 200 yd | 0 | 1 |
| June 8, 1974 | F3 | Delaware County | 2.7 mi | 150 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 17, 2025 | EF1 | Delaware County | 3.7 mi | 700 yd | 0 | 0 |
| April 29, 2025 | EF1 | Delaware County | 2.3 mi | 450 yd | 0 | 0 |
| April 29, 2025 | EF1 | Delaware County | 7.9 mi | 950 yd | 0 | 0 |
| April 29, 2025 | EF1 | Delaware County | 8.7 mi | 1,000 yd | 0 | 0 |
| July 21, 2024 | ? | Delaware County | 0.1 mi | 75 yd | 0 | 0 |
About Delaware County
- Population: 41,771 (2024 estimate)
- State: Oklahoma
- NOAA Weather Radio SAME code: 040041 (how to use it)