Alert archive / Ohio / Severe Thunderstorm Watches
Severe Thunderstorm Watches in Ohio, 2021
20 severe thunderstorm watches in 2021. 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 2021. Tap one for its archive.
- Severe Thunderstorm Watches
- 20
- Busiest month
- June9 severe thunderstorm watches
- Busiest day
- August 11, 20214 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 |
|---|---|---|---|---|
| May 26, 12:59 PM EDT | Severe Thunderstorm Watch | SPC | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 12 more | 7 hr |
| Jun 13, 12:50 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Athens, Belmont, Carroll, Columbiana, Coshocton and 30 more | 7 hr |
| Jun 14, 11:46 AM EDT | Severe Thunderstorm Watch | SPC | Belmont, Carroll, Columbiana, Guernsey, Harrison, Jefferson and 3 more | 6 hr |
| Jun 18, 9:09 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Butler, Clermont, Clinton, Gallia and 10 more | 6 hr |
| Jun 19, 8:50 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 3 hr |
| Jun 20, 6:06 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Auglaize, Crawford, Defiance, Erie, Fulton and 16 more | 7 hr |
| Jun 21, 1:00 AM EDT | Severe Thunderstorm Watch | SPC | Ashtabula, Cuyahoga, Defiance, Erie, Fulton, Geauga and 11 more | 7 hr |
| Jun 21, 12:31 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Ashtabula, Athens, Belmont, Carroll, Columbiana and 33 more | 7 hr |
| Jun 30, 11:47 AM EDT | Severe Thunderstorm Watch | SPC | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more | 7 hr |
| Jun 30, 12:46 PM EDT | Severe Thunderstorm Watch | SPC | Ashtabula, Geauga, Mahoning, Portage, Stark, Trumbull | 7 hr |
| Jul 7, 1:31 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Ashland, Ashtabula, Crawford, Cuyahoga, Defiance and 30 more | 7 hr |
| Jul 7, 3:31 PM EDT | Severe Thunderstorm Watch | SPC | Carroll, Columbiana | 7 hr |
| Jul 29, 3:13 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Athens, Belmont, Brown, Butler, Carroll and 43 more | 7 hr |
| Aug 10, 8:38 PM EDT | Severe Thunderstorm Watch | SPC | Williams | 5 hr |
| Aug 11, 11:50 AM EDT | Severe Thunderstorm Watch | SPC | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 4 hr |
| Aug 11, 2:32 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Auglaize, Champaign, Clark, Crawford, Cuyahoga and 28 more | 4 hr |
| Aug 11, 4:57 PM EDT | Severe Thunderstorm Watch | SPC | Ashtabula, Belmont, Carroll, Columbiana, Coshocton, Geauga and 13 more | 3 hr |
| Aug 12, 3:48 PM EDT | Severe Thunderstorm Watch | SPC | Ashtabula, Carroll, Columbiana, Cuyahoga, Geauga, Harrison and 12 more | 6 hr |
| Aug 13, 4:46 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Athens, Belmont, Carroll, Columbiana, Coshocton and 21 more | 5 hr |
| Sep 14, 3:08 PM EDT | Severe Thunderstorm Watch | SPC | Defiance, Fulton, Henry, Paulding, Williams | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Carroll County10
- Columbiana County10
- Harrison County9
- Jefferson County9
- Tuscarawas County9
- Belmont County8
- Guernsey County8
- Mahoning County8
- Monroe County8
- Noble County8
- Stark County8
- Coshocton County7
- Holmes County7
- Muskingum County7
- Portage County7
- Trumbull County7
- Wayne County7
- Williams County7
- Defiance County6
- Fulton County6
- Henry County6
- Paulding County6
- Ashtabula County6
- Geauga County6
- Summit County5
- Gallia County5
- Jackson County5
- Knox County5
- Lawrence County5
- Meigs County5
- Vinton County5
- Lorain County5
- Lake County5
- Adams County4
- Athens County4
- Licking County4
- Morgan County4
- Perry County4
- Pike County4
- Ross County4
48 more counties
- Scioto County4
- Washington County4
- Allen County4
- Putnam County4
- Van Wert County4
- Erie County4
- Huron County4
- Lucas County4
- Ottawa County4
- Sandusky County4
- Wood County4
- Cuyahoga County4
- Medina County4
- Fairfield County3
- Highland County3
- Hocking County3
- Pickaway County3
- Crawford County3
- Hancock County3
- Seneca County3
- Wyandot County3
- Ashland County3
- Richland County3
- Brown County2
- Butler County2
- Clermont County2
- Clinton County2
- Hamilton County2
- Warren County2
- Auglaize County2
- Hardin County2
- Mercer County2
- Marion County2
- Morrow County2
- Champaign County2
- Clark County2
- Darke County2
- Delaware County2
- Franklin County2
- Logan County2
- Madison County2
- Miami County2
- Shelby County2
- Union County2
- Fayette County1
- Greene County1
- Montgomery County1
- Preble County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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. Rebuilt daily.