Slope County weather alerts
There are no active weather alerts for Slope County, ND right now.
Since 2016 the National Weather Service has issued about 909 alerts that included Slope County, roughly 91 a year. The most common is the wind advisory (173 from 2016 to 2025). The last tornado warning was issued on June 27, 2024. 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 Slope County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Billings County, Hettinger County, Fallon County, Bowman County.
Slope County alert history
Alert events that included Slope County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Wind Advisory | 173 | 15 | November 2, 2026 |
| Severe Thunderstorm Warning | 139 | 22 | September 23, 2026 |
| Winter Weather Advisory | 82 | 3 | March 14, 2026 |
| Severe Thunderstorm Watch | 74 | 8 | August 30, 2026 |
| Red Flag Warning | 64 | 14 | October 23, 2026 |
| Cold Weather Advisory | 62 | 1 | January 23, 2026 |
| Dense Fog Advisory | 60 | 12 | November 14, 2026 |
| Fire Weather Watch | 46 | 6 | September 10, 2026 |
| High Wind Warning | 37 | 3 | September 14, 2026 |
| Freeze Warning | 30 | 3 | October 16, 2026 |
| High Wind Watch | 23 | 2 | March 12, 2026 |
| Winter Storm Watch | 23 | 2 | April 3, 2026 |
| Frost Advisory | 22 | 1 | May 10, 2026 |
| Extreme Cold Warning | 16 | 1 | January 22, 2026 |
| Winter Storm Warning | 15 | 2 | April 3, 2026 |
| Heat Advisory | 10 | 3 | July 25, 2026 |
| Freeze Watch | 10 | 0 | September 6, 2025 |
| Blizzard Warning | 9 | 0 | December 18, 2025 |
| Tornado Watch | 5 | 1 | June 27, 2026 |
| Flood Advisory | 4 | 0 | July 5, 2022 |
| Extreme Cold Watch | 2 | 1 | January 22, 2026 |
| Flood Watch | 1 | 0 | August 4, 2023 |
| Flood Warning | 1 | 0 | April 12, 2023 |
| Tornado Warning | 1 | 0 | June 27, 2024 |
| Extreme Heat Watch | 0 | 1 | July 11, 2026 |
| Extreme Heat Warning | 0 | 1 | July 11, 2026 |
Tornado history in Slope County
11 tornadoes have been recorded in Slope County since 1950. That ranks 51 of 53 counties in North Dakota. The most recent was on September 9, 2010 (rated EF0).
Strongest tornadoes in Slope County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 19, 1972 | F1 | Slope County | 15.5 mi | 50 yd | 0 | 0 |
| August 6, 1960 | F1 | Slope County | 0.1 mi | 10 yd | 0 | 0 |
| May 23, 1965 | F1 | Slope County | 0.1 mi | 10 yd | 0 | 0 |
| June 8, 1991 | F1 | Slope County | 0.1 mi | 10 yd | 0 | 0 |
| July 3, 2001 | F0 | Slope County | 9 mi | 40 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| September 9, 2010 | EF0 | Slope County | 0.8 mi | 40 yd | 0 | 0 |
| July 26, 2010 | EF0 | Slope County | 5.3 mi | 30 yd | 0 | 0 |
| July 3, 2001 | F0 | Slope County | 9 mi | 40 yd | 0 | 0 |
| June 20, 1999 | F0 | Golden Valley County | 3 mi | 0 yd | 0 | 0 |
| June 8, 1991 | F0 | Slope County | 0.1 mi | 10 yd | 0 | 0 |
About Slope County
- Population: 660 (2024 estimate)
- State: North Dakota
- NOAA Weather Radio SAME code: 038087 (how to use it)