Alert archive / Ohio / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Ohio, 2026
58 severe thunderstorm watches in 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 2026. Tap one for its archive.
- Severe Thunderstorm Watches
- 58
- Busiest month
- August12 severe thunderstorm watches
- Busiest day
- August 11, 20265 severe thunderstorm watches
Over time
By month
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 |
|---|---|---|---|---|
| Mar 15, 6:42 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 6 hr |
| Mar 15, 11:53 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Auglaize, Brown, Butler, Champaign, Clark and 29 more | 4 hr |
| Mar 22, 3:44 PM EDT | Severe Thunderstorm Watch | SPC | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more | 8 hr |
| Mar 22, 5:39 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Ashland, Athens, Auglaize, Brown, Butler and 48 more | 6 hr |
| Mar 31, 10:25 AM EDT | Severe Thunderstorm Watch | SPC | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 6 hr |
| Mar 31, 2:59 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more | 8 hr |
| Mar 31, 6:01 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Auglaize, Defiance, Fulton, Hardin, Henry and 5 more | 5 hr |
| Mar 31, 6:26 PM EDT | Severe Thunderstorm Watch | SPC | Carroll, Columbiana | 6 hr |
| Apr 1, 2:43 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Athens, Belmont, Brown, Clermont, Gallia and 12 more | 5 hr |
| Apr 4, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Auglaize, Champaign, Clark, Crawford and 34 more | 6 hr |
| Apr 13, 3:09 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 5 hr |
| Apr 14, 4:58 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Auglaize, Champaign, Clark, Darke, Defiance and 15 more | 4 hr |
| Apr 15, 1:48 AM EDT | Severe Thunderstorm Watch | SPC | Erie, Fulton, Huron, Lorain, Lucas, Ottawa and 3 more | 3 hr |
| Apr 15, 2:56 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Ashland, Ashtabula, Columbiana, Crawford, Cuyahoga and 31 more | 6 hr |
| Apr 27, 8:39 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Auglaize, Butler, Clermont, Darke, Hamilton and 9 more | 8 hr |
| May 9, 5:41 PM EDT | Severe Thunderstorm Watch | SPC | Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina and 3 more | 4 hr |
| May 18, 11:02 AM EDT | Severe Thunderstorm Watch | SPC | Allen, Auglaize, Defiance, Fulton, Henry, Mercer and 4 more | 7 hr |
| May 18, 3:32 PM EDT | Severe Thunderstorm Watch | SPC | Hancock, Lucas, Ottawa, Sandusky, Seneca, Wood | 3 hr |
| May 19, 2:01 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Ashland, Crawford, Defiance, Erie, Fulton and 18 more | 8 hr |
| May 19, 4:36 PM EDT | Severe Thunderstorm Watch | SPC | Auglaize, Butler, Champaign, Clark, Darke, Greene and 10 more | 5 hr |
| May 19, 8:00 PM EDT | Severe Thunderstorm Watch | SPC | Clinton, Delaware, Fairfield, Fayette, Franklin, Hocking and 3 more | 38 days |
| May 20, 3:49 PM EDT | Severe Thunderstorm Watch | SPC | Gallia, Lawrence | 5 hr |
| May 27, 1:11 PM EDT | Severe Thunderstorm Watch | SPC | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 2 more | 9 hr |
| Jun 6, 11:54 AM EDT | Severe Thunderstorm Watch | SPC | Ashland, Belmont, Carroll, Columbiana, Coshocton, Guernsey and 14 more | 6 hr |
| Jun 6, 3:43 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Auglaize, Butler, Champaign, Clark, Clinton and 27 more | 6 hr |
| Jun 6, 6:00 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Athens, Belmont, Carroll, Columbiana, Coshocton and 29 more | 4 hr |
| Jun 10, 5:41 PM EDT | Severe Thunderstorm Watch | SPC | Defiance, Paulding, Van Wert, Williams | 4 hr |
| Jun 11, 1:20 PM EDT | Severe Thunderstorm Watch | SPC | Ashtabula, Athens, Belmont, Carroll, Columbiana, Guernsey and 11 more | 6 hr |
| Jun 11, 9:47 PM EDT | Severe Thunderstorm Watch | SPC | Auglaize, Butler, Champaign, Clark, Darke, Delaware and 11 more | 5 hr |
| Jun 11, 11:38 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more | 3 hr |
| Jun 14, 1:25 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Ashland, Ashtabula, Athens, Auglaize and 75 more | 8 hr |
| Jun 16, 4:07 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 7 hr |
| Jun 21, 8:42 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Butler, Clermont, Clinton, Hamilton and 2 more | 2 hr |
| Jun 25, 5:56 PM EDT | Severe Thunderstorm Watch | SPC | Ashtabula, Belmont, Carroll, Columbiana, Geauga, Guernsey and 10 more | 4 hr |
| Jul 3, 2:35 PM EDT | Severe Thunderstorm Watch | SPC | Fulton, Williams | 7 hr |
| Jul 4, 1:59 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Belmont, Carroll, Champaign, Clark, Columbiana and 31 more | 6 hr |
| Jul 18, 1:02 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Belmont, Carroll, Columbiana, Coshocton and 33 more | 8 hr |
| Jul 18, 1:20 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 5 hr |
| Jul 21, 1:13 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Athens, Belmont, Brown, Butler, Carroll and 43 more | 10 hr |
| Jul 27, 5:20 PM EDT | Severe Thunderstorm Watch | SPC | Brown, Butler, Champaign, Clark, Clermont, Clinton and 9 more | 4 hr |
| 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 |
| Sep 2, 4:56 PM EDT | Severe Thunderstorm Watch | SPC | Ashtabula, Columbiana, Mahoning, Portage, Stark, Trumbull | 9 hr |
| Sep 3, 1:59 PM EDT | Severe Thunderstorm Watch | SPC | Fulton | 3 hr |
| Sep 3, 3:03 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Belmont, Carroll, Columbiana, Coshocton and 38 more | 9 hr |
| Sep 4, 2:04 PM EDT | Severe Thunderstorm Watch | SPC | Athens, Gallia, Jackson, Lawrence, Meigs, Monroe and 6 more | 7 hr |
| Sep 5, 2:33 AM EDT | Severe Thunderstorm Watch | SPC | Allen, Auglaize, Champaign, Crawford, Defiance, Delaware and 19 more | 5 hr |
| Sep 9, 2:51 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Carroll, Columbiana, Coshocton, Crawford and 27 more | 8 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Shelby County18
- Knox County18
- Stark County18
- Allen County17
- Paulding County17
- Putnam County17
- Van Wert County17
- Columbiana County17
- Crawford County17
- Morrow County17
- Portage County17
- Richland County17
- Defiance County16
- Fulton County16
- Williams County16
- Auglaize County16
- Champaign County16
- Licking County16
- Mercer County16
- Miami County16
- Hancock County16
- Mahoning County16
- Marion County16
- Wyandot County16
- Trumbull County16
- Henry County15
- Clark County15
- Delaware County15
- Hardin County15
- Logan County15
- Union County15
- Carroll County15
- Monroe County15
- Noble County15
- Ashland County15
- Sandusky County15
- Seneca County15
- Darke County14
- Madison County14
- Montgomery County14
48 more counties
- Preble County14
- Belmont County14
- Guernsey County14
- Harrison County14
- Jefferson County14
- Tuscarawas County14
- Holmes County14
- Washington County14
- Ashtabula County14
- Erie County14
- Huron County14
- Butler County13
- Franklin County13
- Vinton County13
- Warren County13
- Muskingum County13
- Medina County13
- Morgan County13
- Summit County13
- Wayne County13
- Lorain County13
- Ottawa County13
- Wood County13
- Fairfield County12
- Greene County12
- Hamilton County12
- Jackson County12
- Coshocton County12
- Athens County12
- Lucas County12
- Clermont County11
- Clinton County11
- Hocking County11
- Lawrence County11
- Meigs County11
- Geauga County11
- Lake County11
- Gallia County11
- Brown County10
- Fayette County10
- Highland County10
- Pickaway County10
- Perry County10
- Cuyahoga County10
- Adams County9
- Pike County9
- Ross County8
- Scioto County8
The busiest days
Days with the most alerts issued, by UTC date.
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.