Alert archive / Ohio / Severe Thunderstorm Watches / 2026
Severe Thunderstorm Watches in Ohio, August 2026
12 severe thunderstorm watches in August 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in August 2026. Tap one for its archive.
- Severe Thunderstorm Watches
- 12
- Busiest day
- August 11, 20265 severe thunderstorm watches
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 1:03 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 8 hr |
| Aug 9, 7:22 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Auglaize, Crawford, Delaware, Erie, Hancock and 17 more | 4 hr |
| Aug 10, 9:29 AM EDT | Severe Thunderstorm Watch | SPC | Ashtabula, Belmont, Carroll, Columbiana, Coshocton, Guernsey and 10 more | 6 hr |
| Aug 10, 12:48 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Athens, Auglaize, Brown, Butler, Champaign and 33 more | 7 hr |
| Aug 10, 7:21 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Auglaize, Champaign, Clark, Crawford, Darke and 37 more | 7 hr |
| Aug 11, 8:41 AM EDT | Severe Thunderstorm Watch | SPC | Adams, Athens, Brown, Butler, Champaign, Clark and 27 more | 7 hr |
| Aug 11, 11:01 AM EDT | Severe Thunderstorm Watch | SPC | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 10 hr |
| Aug 11, 11:37 AM EDT | Severe Thunderstorm Watch | SPC | Morgan, Washington | 4 hr |
| Aug 11, 12:40 PM EDT | Severe Thunderstorm Watch | SPC | Auglaize, Butler, Champaign, Clark, Clinton, Crawford and 23 more | 7 hr |
| Aug 11, 2:36 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Clermont, Gallia, Hamilton, Highland and 7 more | 7 hr |
| Aug 16, 1:05 PM EDT | Severe Thunderstorm Watch | SPC | Athens, Belmont, Carroll, Columbiana, Coshocton, Gallia and 20 more | 9 hr |
| Aug 22, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Athens, Belmont, Carroll, Columbiana and 40 more | 8 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Licking County6
- Shelby County5
- Fairfield County5
- Gallia County5
- Hocking County5
- Jackson County5
- Lawrence County5
- Vinton County5
- Auglaize County4
- Crawford County4
- Delaware County4
- Hardin County4
- Knox County4
- Logan County4
- Mercer County4
- Morrow County4
- Union County4
- Athens County4
- Champaign County4
- Clark County4
- Darke County4
- Fayette County4
- Franklin County4
- Greene County4
- Madison County4
- Meigs County4
- Miami County4
- Montgomery County4
- Pickaway County4
- Preble County4
- Washington County4
- Allen County3
- Defiance County3
- Fulton County3
- Henry County3
- Paulding County3
- Putnam County3
- Van Wert County3
- Williams County3
- Erie County3
48 more counties
- Hancock County3
- Huron County3
- Marion County3
- Ottawa County3
- Richland County3
- Sandusky County3
- Seneca County3
- Wyandot County3
- Belmont County3
- Carroll County3
- Columbiana County3
- Coshocton County3
- Guernsey County3
- Harrison County3
- Jefferson County3
- Mahoning County3
- Monroe County3
- Muskingum County3
- Noble County3
- Portage County3
- Stark County3
- Trumbull County3
- Tuscarawas County3
- Adams County3
- Brown County3
- Butler County3
- Clermont County3
- Clinton County3
- Hamilton County3
- Highland County3
- Pike County3
- Ross County3
- Scioto County3
- Warren County3
- Perry County3
- Morgan County3
- Ashland County2
- Lucas County2
- Wood County2
- Ashtabula County2
- Holmes County2
- Summit County2
- Cuyahoga County1
- Geauga County1
- Lake County1
- Lorain County1
- Medina County1
- Wayne County1
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.