Clark County weather alerts
There are no active weather alerts for Clark County, OH right now.
Since 2016 the National Weather Service has issued about 791 alerts that included Clark County, roughly 79 a year. The most common is the severe thunderstorm warning (156 from 2016 to 2025). The last tornado warning was issued on August 11, 2026. 34 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 Clark County at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Greene County, Montgomery County, Madison County, Miami County.
Clark County alert history
Alert events that included Clark County or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Severe Thunderstorm Warning | 156 | 22 | September 16, 2026 |
| Flood Advisory | 82 | 15 | October 14, 2026 |
| Winter Weather Advisory | 70 | 4 | March 2, 2026 |
| Wind Advisory | 66 | 3 | March 15, 2026 |
| Dense Fog Advisory | 61 | 7 | September 13, 2026 |
| Freeze Warning | 46 | 4 | October 18, 2026 |
| Severe Thunderstorm Watch | 43 | 15 | August 11, 2026 |
| Flood Watch | 40 | 9 | September 20, 2026 |
| Frost Advisory | 31 | 4 | October 19, 2026 |
| Flood Warning | 25 | 7 | August 20, 2026 |
| Tornado Warning | 24 | 2 | August 11, 2026 |
| Tornado Watch | 23 | 3 | March 26, 2026 |
| Cold Weather Advisory | 23 | 8 | February 7, 2026 |
| Freeze Watch | 20 | 3 | October 18, 2026 |
| Heat Advisory | 20 | 4 | September 1, 2026 |
| Flash Flood Warning | 10 | 3 | June 28, 2026 |
| High Wind Warning | 9 | 2 | March 15, 2026 |
| Winter Storm Watch | 8 | 1 | January 24, 2026 |
| Winter Storm Warning | 8 | 1 | January 24, 2026 |
| Extreme Heat Watch | 6 | 0 | June 22, 2025 |
| Red Flag Warning | 5 | 0 | April 20, 2023 |
| High Wind Watch | 4 | 0 | February 9, 2023 |
| Extreme Cold Watch | 3 | 1 | January 26, 2026 |
| Snow Squall Warning | 3 | 1 | January 15, 2026 |
| Extreme Heat Warning | 2 | 1 | June 30, 2026 |
| Extreme Cold Warning | 2 | 3 | January 31, 2026 |
| Ice Storm Warning | 1 | 0 | November 15, 2018 |
Tornado history in Clark County
34 tornadoes have been recorded in Clark County since 1950, killing 36 people and injuring 1,168. That ranks 7 of 88 counties in Ohio. The most recent was on July 19, 2025 (rated EF1).
Strongest tornadoes in Clark County
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| April 3, 1974 | F5 | Greene County | 31.3 mi | 533 yd | 36 | 1150 |
| May 10, 1973 | F3 | Champaign County | 89.6 mi | 300 yd | 0 | 8 |
| February 28, 2024 | EF2 | Clark County | 21.1 mi | 500 yd | 0 | 3 |
| April 3, 1974 | F2 | Clark County | 15.7 mi | 180 yd | 0 | 0 |
| June 8, 2022 | EF1 | Clark County | 16.9 mi | 200 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| July 19, 2025 | EF1 | Clark County | 2.8 mi | 175 yd | 0 | 0 |
| July 19, 2025 | EF0 | Clark County | 0.9 mi | 50 yd | 0 | 0 |
| February 28, 2024 | EF2 | Clark County | 21.1 mi | 500 yd | 0 | 3 |
| February 27, 2023 | EF1 | Clark County | 2.3 mi | 300 yd | 0 | 0 |
| June 8, 2022 | EF1 | Clark County | 16.9 mi | 200 yd | 0 | 0 |
About Clark County
- Population: 134,985 (2024 estimate)
- State: Ohio
- NOAA Weather Radio SAME code: 039023 (how to use it)