Harrison County weather alerts
There are no active weather alerts for Harrison County, MO right now.
Since 2016 the National Weather Service has issued about 820 alerts that included Harrison County, roughly 82 a year. The most common is the severe thunderstorm warning (158 from 2016 to 2025). The last tornado warning was issued on June 10, 2026. 24 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 Harrison County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Ringgold County, Daviess County, Decatur County, Gentry County.
Harrison County alert history
Alert events that included Harrison County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 158 | 52 | September 6, 2026 |
| Severe Thunderstorm Watch | 85 | 8 | September 20, 2026 |
| Dense Fog Advisory | 77 | 11 | September 17, 2026 |
| Winter Weather Advisory | 75 | 4 | April 7, 2026 |
| Wind Advisory | 59 | 4 | June 17, 2026 |
| Heat Advisory | 38 | 7 | September 8, 2026 |
| Tornado Watch | 33 | 8 | June 10, 2026 |
| Flood Warning | 29 | 6 | June 11, 2026 |
| Flood Watch | 28 | 9 | September 30, 2026 |
| Flash Flood Warning | 28 | 8 | September 14, 2026 |
| Freeze Warning | 27 | 2 | October 17, 2026 |
| Cold Weather Advisory | 27 | 2 | January 26, 2026 |
| Frost Advisory | 20 | 3 | November 7, 2026 |
| Red Flag Warning | 19 | 5 | March 28, 2026 |
| Flood Advisory | 18 | 4 | September 16, 2026 |
| Winter Storm Watch | 18 | 0 | November 29, 2025 |
| Tornado Warning | 16 | 5 | June 10, 2026 |
| Winter Storm Warning | 14 | 0 | February 11, 2025 |
| Fire Weather Watch | 8 | 2 | March 28, 2026 |
| Freeze Watch | 8 | 1 | October 17, 2026 |
| Extreme Cold Warning | 7 | 1 | January 23, 2026 |
| Extreme Heat Warning | 6 | 3 | September 3, 2026 |
| High Wind Warning | 6 | 1 | March 15, 2026 |
| Extreme Heat Watch | 5 | 2 | July 25, 2026 |
| Extreme Cold Watch | 4 | 1 | January 23, 2026 |
| Blizzard Warning | 3 | 0 | March 5, 2025 |
| Ice Storm Warning | 2 | 0 | February 6, 2019 |
| High Wind Watch | 2 | 1 | March 15, 2026 |
| Snow Squall Warning | 0 | 2 | January 16, 2026 |
Tornado history in Harrison County
24 tornadoes have been recorded in Harrison County since 1950, killing 5 people and injuring 17. That ranks 57 of 115 counties in Missouri. The most recent was on June 28, 2017 (rated EF1).
Strongest tornadoes in Harrison County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 29, 2004 | F4 | DeKalb County | 22 mi | 800 yd | 3 | 6 |
| October 8, 1958 | F3 | Nodaway County | 23.1 mi | 300 yd | 2 | 7 |
| April 16, 1960 | F3 | Benton County | 27 mi | 300 yd | 0 | 4 |
| November 17, 1958 | F2 | Harrison County | 4.1 mi | 100 yd | 0 | 0 |
| May 24, 1989 | F2 | Harrison County | 2.5 mi | 73 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 28, 2017 | EF1 | Gentry County | 16.4 mi | 75 yd | 0 | 0 |
| June 30, 2014 | EF0 | Harrison County | 3 mi | 200 yd | 0 | 0 |
| March 30, 2006 | F0 | Harrison County | 1 mi | 50 yd | 0 | 0 |
| June 4, 2005 | F1 | Harrison County | 5 mi | 100 yd | 0 | 0 |
| May 29, 2004 | F0 | Daviess County | 6 mi | 100 yd | 0 | 0 |
About Harrison County
- Population: 8,186 (2024 estimate)
- State: Missouri
- NOAA Weather Radio SAME code: 029081 (how to use it)