Harrison County weather alerts
There are no active weather alerts for Harrison County, OH right now.
Since 2016 the National Weather Service has issued about 698 alerts that included Harrison County, roughly 70 a year. The most common is the severe thunderstorm warning (235 from 2016 to 2025). The last tornado warning was issued on March 11, 2026. 5 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 Guernsey County, Carroll County, Belmont County, Jefferson 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 | 235 | 35 | October 14, 2026 |
| Severe Thunderstorm Watch | 70 | 14 | September 9, 2026 |
| Winter Weather Advisory | 53 | 1 | March 16, 2026 |
| Flood Watch | 41 | 13 | September 20, 2026 |
| Dense Fog Advisory | 34 | 8 | August 21, 2026 |
| Flood Advisory | 33 | 0 | April 2, 2024 |
| Frost Advisory | 33 | 4 | October 22, 2026 |
| Wind Advisory | 32 | 2 | March 16, 2026 |
| Flash Flood Warning | 28 | 13 | September 20, 2026 |
| Freeze Warning | 19 | 4 | October 18, 2026 |
| Flood Warning | 16 | 5 | September 20, 2026 |
| Tornado Watch | 15 | 3 | March 26, 2026 |
| Cold Weather Advisory | 13 | 8 | February 7, 2026 |
| Freeze Watch | 12 | 3 | October 18, 2026 |
| Heat Advisory | 12 | 3 | September 2, 2026 |
| Tornado Warning | 12 | 1 | March 11, 2026 |
| Winter Storm Warning | 9 | 1 | January 25, 2026 |
| Winter Storm Watch | 6 | 1 | January 25, 2026 |
| Red Flag Warning | 5 | 0 | March 19, 2025 |
| High Wind Watch | 5 | 0 | December 23, 2022 |
| High Wind Warning | 4 | 1 | March 13, 2026 |
| Extreme Heat Watch | 3 | 0 | June 22, 2025 |
| Snow Squall Warning | 3 | 7 | February 7, 2026 |
| Extreme Cold Watch | 2 | 1 | January 27, 2026 |
| Extreme Heat Warning | 1 | 1 | June 30, 2026 |
| Extreme Cold Warning | 1 | 1 | January 27, 2026 |
| Fire Weather Watch | 1 | 0 | March 19, 2025 |
Tornado history in Harrison County
5 tornadoes have been recorded in Harrison County since 1950, killing 1 people and injuring 15. That ranks 82 of 88 counties in Ohio. The most recent was on July 29, 2021 (rated EF2).
Strongest tornadoes in Harrison County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 8, 1969 | F3 | Harrison County | 2 mi | 300 yd | 1 | 14 |
| May 23, 2000 | F2 | Harrison County | 3 mi | 200 yd | 0 | 0 |
| July 29, 2021 | EF2 | Harrison County | 2.7 mi | 220 yd | 0 | 0 |
| June 25, 1968 | F1 | Guernsey County | 7.3 mi | 200 yd | 0 | 0 |
| April 12, 1965 | F1 | Harrison County | 0.1 mi | 10 yd | 0 | 1 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 29, 2021 | EF2 | Harrison County | 2.7 mi | 220 yd | 0 | 0 |
| May 23, 2000 | F2 | Harrison County | 3 mi | 200 yd | 0 | 0 |
| May 8, 1969 | F3 | Harrison County | 2 mi | 300 yd | 1 | 14 |
| June 25, 1968 | F1 | Guernsey County | 7.3 mi | 200 yd | 0 | 0 |
| April 12, 1965 | F1 | Harrison County | 0.1 mi | 10 yd | 0 | 1 |
About Harrison County
- Population: 14,042 (2024 estimate)
- State: Ohio
- NOAA Weather Radio SAME code: 039067 (how to use it)