McCook County weather alerts
There are no active weather alerts for McCook County, SD right now.
Since 2016 the National Weather Service has issued about 924 alerts that included McCook County, roughly 92 a year. The most common is the severe thunderstorm warning (174 from 2016 to 2025). The last tornado warning was issued on June 1, 2026. 44 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 McCook County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Minnehaha County, Turner County, Lake County, Miner County.
McCook County alert history
Alert events that included McCook County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 174 | 27 | September 12, 2026 |
| Winter Weather Advisory | 98 | 5 | March 16, 2026 |
| Dense Fog Advisory | 96 | 7 | September 30, 2026 |
| Wind Advisory | 96 | 3 | June 17, 2026 |
| Severe Thunderstorm Watch | 84 | 10 | September 11, 2026 |
| Heat Advisory | 53 | 5 | July 25, 2026 |
| Cold Weather Advisory | 48 | 3 | March 16, 2026 |
| Red Flag Warning | 42 | 10 | May 14, 2026 |
| Winter Storm Watch | 31 | 1 | March 15, 2026 |
| Fire Weather Watch | 23 | 4 | April 16, 2026 |
| Winter Storm Warning | 20 | 0 | December 6, 2025 |
| Flood Warning | 19 | 0 | June 24, 2024 |
| Freeze Warning | 16 | 3 | October 17, 2026 |
| Frost Advisory | 15 | 4 | May 20, 2026 |
| Tornado Warning | 15 | 3 | June 1, 2026 |
| High Wind Warning | 13 | 2 | June 10, 2026 |
| Flood Watch | 12 | 0 | June 21, 2024 |
| Flash Flood Warning | 12 | 1 | May 31, 2026 |
| Blizzard Warning | 11 | 1 | March 15, 2026 |
| Extreme Cold Warning | 10 | 1 | January 23, 2026 |
| Extreme Heat Warning | 9 | 1 | July 25, 2026 |
| Extreme Heat Watch | 7 | 0 | July 27, 2025 |
| Tornado Watch | 7 | 3 | June 10, 2026 |
| High Wind Watch | 5 | 1 | March 13, 2026 |
| Freeze Watch | 4 | 1 | October 17, 2026 |
| Extreme Cold Watch | 4 | 1 | January 23, 2026 |
Tornado history in McCook County
44 tornadoes have been recorded in McCook County since 1950, killing 6 people and injuring 152. That ranks 13 of 66 counties in South Dakota. The most recent was on May 30, 2022 (rated unknown).
Strongest tornadoes in McCook County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 30, 1998 | F4 | Hanson County | 14 mi | 1,150 yd | 6 | 150 |
| May 7, 1993 | F3 | McCook County | 10 mi | 100 yd | 0 | 0 |
| May 24, 1965 | F3 | McCook County | 9 mi | 20 yd | 0 | 0 |
| June 7, 1993 | F3 | McCook County | 5 mi | 250 yd | 0 | 0 |
| August 8, 1969 | F2 | Davison County | 34.3 mi | 10 yd | 0 | 1 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 30, 2022 | ? | McCook County | 0.8 mi | 25 yd | 0 | 0 |
| June 24, 2009 | EF0 | McCook County | 0.3 mi | 50 yd | 0 | 0 |
| May 5, 2007 | EF2 | McCook County | 10.5 mi | 400 yd | 0 | 0 |
| September 16, 2006 | F2 | McCook County | 12 mi | 100 yd | 0 | 0 |
| June 12, 2001 | F0 | McCook County | 0.1 mi | 50 yd | 0 | 0 |
About McCook County
- Population: 5,771 (2024 estimate)
- State: South Dakota
- NOAA Weather Radio SAME code: 046087 (how to use it)