Mahnomen County weather alerts
There are no active weather alerts for Mahnomen County, MN right now.
Since 2016 the National Weather Service has issued about 850 alerts that included Mahnomen County, roughly 85 a year. The most common is the severe thunderstorm warning (148 from 2016 to 2025). The last tornado warning was issued on July 6, 2026. 26 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 Mahnomen County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Polk County, Norman County, Becker County, Clearwater County.
Mahnomen County alert history
Alert events that included Mahnomen County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 148 | 17 | September 4, 2026 |
| Winter Weather Advisory | 124 | 11 | April 2, 2026 |
| Cold Weather Advisory | 119 | 8 | January 31, 2026 |
| Dense Fog Advisory | 72 | 7 | September 17, 2026 |
| Severe Thunderstorm Watch | 69 | 6 | September 3, 2026 |
| Winter Storm Watch | 41 | 4 | April 3, 2026 |
| Winter Storm Warning | 39 | 1 | April 3, 2026 |
| Frost Advisory | 33 | 1 | October 2, 2026 |
| Wind Advisory | 33 | 3 | May 15, 2026 |
| Red Flag Warning | 29 | 4 | May 14, 2026 |
| Extreme Cold Warning | 26 | 1 | January 22, 2026 |
| Fire Weather Watch | 18 | 2 | May 15, 2026 |
| Tornado Warning | 18 | 3 | July 6, 2026 |
| Freeze Warning | 14 | 4 | October 2, 2026 |
| Blizzard Warning | 11 | 1 | January 18, 2026 |
| Flood Watch | 10 | 0 | July 23, 2025 |
| Tornado Watch | 8 | 2 | July 24, 2026 |
| Heat Advisory | 6 | 4 | July 29, 2026 |
| Freeze Watch | 5 | 0 | October 8, 2025 |
| Flood Warning | 5 | 0 | April 13, 2023 |
| Snow Squall Warning | 5 | 1 | February 27, 2026 |
| Flash Flood Warning | 4 | 0 | June 21, 2025 |
| Flood Advisory | 4 | 1 | July 6, 2026 |
| Extreme Cold Watch | 3 | 1 | January 23, 2026 |
| Extreme Heat Watch | 2 | 1 | July 12, 2026 |
| Extreme Heat Warning | 1 | 3 | July 26, 2026 |
| Ice Storm Warning | 1 | 0 | December 25, 2016 |
| High Wind Warning | 1 | 0 | May 8, 2022 |
| High Wind Watch | 1 | 0 | October 5, 2024 |
Tornado history in Mahnomen County
26 tornadoes have been recorded in Mahnomen County since 1950, killing 4 people and injuring 44. That ranks 43 of 87 counties in Minnesota. The most recent was on June 24, 2023 (rated EF2).
Strongest tornadoes in Mahnomen County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 5, 1978 | F2 | Norman County | 57.5 mi | 400 yd | 4 | 44 |
| July 22, 2013 | EF2 | Mahnomen County | 21.1 mi | 400 yd | 0 | 0 |
| July 11, 2008 | EF2 | Mahnomen County | 16 mi | 250 yd | 0 | 0 |
| June 24, 2023 | EF2 | Mahnomen County | 6.2 mi | 250 yd | 0 | 0 |
| June 24, 1966 | F1 | Clay County | 49.8 mi | 10 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 24, 2023 | EF2 | Mahnomen County | 6.2 mi | 250 yd | 0 | 0 |
| June 24, 2023 | ? | Mahnomen County | 0.2 mi | 10 yd | 0 | 0 |
| June 24, 2023 | ? | Mahnomen County | 0.3 mi | 10 yd | 0 | 0 |
| June 24, 2022 | EF1 | Mahnomen County | 3.8 mi | 400 yd | 0 | 0 |
| May 24, 2019 | EF1 | Mahnomen County | 3.5 mi | 200 yd | 0 | 0 |
About Mahnomen County
- Population: 5,296 (2024 estimate)
- State: Minnesota
- NOAA Weather Radio SAME code: 027087 (how to use it)