Alert archive / Ohio / Severe Thunderstorm Warnings / 2021
Severe Thunderstorm Warnings in Ohio, August 2021
104 severe thunderstorm warnings in August 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 warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in August 2021. Tap one for its archive.
- Severe Thunderstorm Warnings
- 104
- Busiest day
- August 11, 202139 severe thunderstorm warnings
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 7, 5:51 PM EDT | Severe Thunderstorm Warning | ILN | Darke | 39 min |
| Aug 10, 8:39 AM EDT | Severe Thunderstorm Warning | ILN | Hamilton | 21 min |
| Aug 10, 9:08 AM EDT | Severe Thunderstorm Warning | CLE | Holmes, Knox | 52 min |
| Aug 10, 11:05 AM EDT | Severe Thunderstorm Warning | PBZ | Tuscarawas | 25 min |
| Aug 10, 11:07 AM EDT | Severe Thunderstorm Warning | PBZ | Coshocton | 23 min |
| Aug 10, 11:09 AM EDT | Severe Thunderstorm Warning | CLE | Stark | 66 min |
| Aug 10, 11:28 AM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Tuscarawas | 32 min |
| Aug 10, 11:30 AM EDT | Severe Thunderstorm Warning | PBZ | Coshocton, Tuscarawas | 30 min |
| Aug 10, 11:32 AM EDT | Severe Thunderstorm Warning | CLE | Holmes | 28 min |
| Aug 10, 12:00 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Columbiana, Coshocton, Harrison, Jefferson, Tuscarawas | 45 min |
| Aug 10, 12:59 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Harrison, Tuscarawas | 46 min |
| Aug 10, 1:44 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Monroe, Noble | 31 min |
| Aug 10, 2:12 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Monroe, Noble | 48 min |
| Aug 10, 2:47 PM EDT | Severe Thunderstorm Warning | PBZ | Monroe | 43 min |
| Aug 10, 4:07 PM EDT | Severe Thunderstorm Warning | RLX | Gallia, Lawrence | 38 min |
| Aug 10, 4:17 PM EDT | Severe Thunderstorm Warning | PBZ | Monroe | 13 min |
| Aug 10, 5:58 PM EDT | Severe Thunderstorm Warning | IWX | Defiance, Henry, Paulding, Putnam | 62 min |
| Aug 10, 7:07 PM EDT | Severe Thunderstorm Warning | IWX | Paulding | 38 min |
| Aug 11, 2:40 AM EDT | Severe Thunderstorm Warning | CLE | Lucas, Ottawa, Sandusky, Wood | 65 min |
| Aug 11, 2:50 AM EDT | Severe Thunderstorm Warning | CLE | Erie, Ottawa, Sandusky, Seneca | 55 min |
| Aug 11, 3:38 AM EDT | Severe Thunderstorm Warning | PBZ | Coshocton, Muskingum | 37 min |
| Aug 11, 8:29 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Hancock, Seneca, Wyandot | 46 min |
| Aug 11, 8:58 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Huron, Richland, Seneca | 62 min |
| Aug 11, 9:14 AM EDT | Severe Thunderstorm Warning | CLE | Erie, Huron, Lorain | 61 min |
| Aug 11, 10:56 AM EDT | Severe Thunderstorm Warning | CLE | Mahoning, Portage, Stark | 64 min |
| Aug 11, 11:13 AM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Columbiana | 32 min |
| Aug 11, 11:57 AM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Columbiana, Jefferson | 33 min |
| Aug 11, 12:25 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 50 min |
| Aug 11, 1:48 PM EDT | Severe Thunderstorm Warning | IWX | Defiance, Paulding, Van Wert | 27 min |
| Aug 11, 2:02 PM EDT | Severe Thunderstorm Warning | IWX | Defiance, Fulton, Henry, Williams | 43 min |
| Aug 11, 2:14 PM EDT | Severe Thunderstorm Warning | IWX | Defiance, Paulding, Putnam, Van Wert | 46 min |
| Aug 11, 2:18 PM EDT | Severe Thunderstorm Warning | ILN | Auglaize, Mercer | 57 min |
| Aug 11, 2:44 PM EDT | Severe Thunderstorm Warning | IWX | Defiance, Fulton, Henry, Williams | 46 min |
| Aug 11, 2:48 PM EDT | Severe Thunderstorm Warning | CLE | Hancock, Lucas, Wood | 57 min |
| Aug 11, 2:48 PM EDT | Severe Thunderstorm Warning | IWX | Allen, Defiance, Henry, Putnam, Van Wert | 57 min |
| Aug 11, 3:10 PM EDT | Severe Thunderstorm Warning | ILN | Auglaize, Darke, Logan, Mercer, Shelby | 65 min |
| Aug 11, 3:19 PM EDT | Severe Thunderstorm Warning | ILN | Hardin, Logan | 56 min |
| Aug 11, 3:35 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Hancock, Marion, Seneca, Wyandot | 55 min |
| Aug 11, 3:37 PM EDT | Severe Thunderstorm Warning | CLE | Lucas, Ottawa, Sandusky, Wood | 53 min |
| Aug 11, 3:47 PM EDT | Severe Thunderstorm Warning | ILN | Darke, Miami, Shelby | 41 min |
| Aug 11, 3:53 PM EDT | Severe Thunderstorm Warning | CLE | Erie, Ottawa | 52 min |
| Aug 11, 4:14 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie, Huron, Richland, Seneca | 61 min |
| Aug 11, 4:24 PM EDT | Severe Thunderstorm Warning | ILN | Delaware, Logan, Union | 37 min |
| Aug 11, 4:30 PM EDT | Severe Thunderstorm Warning | CLE | Ashland, Crawford, Knox, Marion, Morrow, Richland | 60 min |
| Aug 11, 4:39 PM EDT | Severe Thunderstorm Warning | CLE | Ashland, Cuyahoga, Erie, Huron, Lorain, Medina | 66 min |
| Aug 11, 4:44 PM EDT | Severe Thunderstorm Warning | CLE | Ashland, Morrow, Richland | 61 min |
| Aug 11, 5:03 PM EDT | Severe Thunderstorm Warning | ILN | Delaware, Franklin, Madison, Union | 42 min |
| Aug 11, 5:15 PM EDT | Severe Thunderstorm Warning | CLE | Ashland, Holmes, Knox, Wayne | 60 min |
| Aug 11, 5:17 PM EDT | Severe Thunderstorm Warning | CLE | Cuyahoga, Geauga, Lake, Portage, Summit | 58 min |
| Aug 11, 5:29 PM EDT | Severe Thunderstorm Warning | CLE | Ashland, Knox | 30 min |
| Aug 11, 5:30 PM EDT | Severe Thunderstorm Warning | ILN | Licking | 41 min |
| Aug 11, 5:36 PM EDT | Severe Thunderstorm Warning | CLE | Mahoning, Medina, Portage, Stark, Summit, Wayne | 69 min |
| Aug 11, 5:41 PM EDT | Severe Thunderstorm Warning | CLE | Ashtabula, Geauga, Lake, Portage, Trumbull | 79 min |
| Aug 11, 6:09 PM EDT | Severe Thunderstorm Warning | CLE | Ashtabula | 75 min |
| Aug 11, 6:12 PM EDT | Severe Thunderstorm Warning | CLE | Mahoning, Portage, Trumbull | 69 min |
| Aug 11, 6:23 PM EDT | Severe Thunderstorm Warning | PBZ | Guernsey, Muskingum, Noble | 37 min |
| Aug 11, 6:51 PM EDT | Severe Thunderstorm Warning | PBZ | Monroe, Noble | 24 min |
| Aug 12, 10:28 AM EDT | Severe Thunderstorm Warning | CLE | Ashtabula, Cuyahoga, Geauga, Portage, Summit, Trumbull | 47 min |
| Aug 12, 11:01 AM EDT | Severe Thunderstorm Warning | CLE | Ashtabula, Trumbull | 40 min |
| Aug 12, 3:42 PM EDT | Severe Thunderstorm Warning | CLE | Geauga, Portage, Summit | 48 min |
| Aug 12, 4:03 PM EDT | Severe Thunderstorm Warning | ILN | Champaign, Clark, Madison | 42 min |
| Aug 12, 4:09 PM EDT | Severe Thunderstorm Warning | CLE | Portage, Summit | 51 min |
| Aug 12, 4:27 PM EDT | Severe Thunderstorm Warning | CLE | Geauga, Portage, Summit, Trumbull | 63 min |
| Aug 12, 4:41 PM EDT | Severe Thunderstorm Warning | ILN | Clark, Madison | 49 min |
| Aug 12, 4:52 PM EDT | Severe Thunderstorm Warning | CLE | Mahoning, Portage | 68 min |
| Aug 12, 5:28 PM EDT | Severe Thunderstorm Warning | ILN | Franklin, Madison, Pickaway | 47 min |
| Aug 12, 6:06 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 24 min |
| Aug 12, 6:40 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Harrison, Jefferson | 20 min |
| Aug 12, 6:58 PM EDT | Severe Thunderstorm Warning | PBZ | Coshocton, Guernsey, Muskingum | 47 min |
| Aug 12, 7:44 PM EDT | Severe Thunderstorm Warning | ILN | Miami | 31 min |
| Aug 12, 7:46 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Harrison, Tuscarawas | 59 min |
| Aug 12, 8:39 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 51 min |
| Aug 12, 9:00 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Columbiana, Harrison, Jefferson, Tuscarawas | 60 min |
| Aug 12, 11:51 PM EDT | Severe Thunderstorm Warning | CLE | Knox, Morrow | 33 min |
| Aug 12, 11:51 PM EDT | Severe Thunderstorm Warning | ILN | Delaware | 24 min |
| Aug 13, 2:43 PM EDT | Severe Thunderstorm Warning | RLX | Lawrence | 33 min |
| Aug 13, 3:19 PM EDT | Severe Thunderstorm Warning | ILN | Pike, Scioto | 20 min |
| Aug 13, 3:20 PM EDT | Severe Thunderstorm Warning | RLX | Gallia, Jackson, Lawrence | 25 min |
| Aug 13, 3:54 PM EDT | Severe Thunderstorm Warning | ILN | Fayette, Highland, Pickaway, Pike, Ross | 51 min |
| Aug 13, 4:03 PM EDT | Severe Thunderstorm Warning | ILN | Pickaway | 27 min |
| Aug 13, 4:14 PM EDT | Severe Thunderstorm Warning | RLX | Athens, Gallia, Meigs, Washington | 46 min |
| Aug 13, 4:18 PM EDT | Severe Thunderstorm Warning | ILN | Adams, Brown, Highland, Pike | 42 min |
| Aug 13, 5:13 PM EDT | Severe Thunderstorm Warning | PBZ | Monroe, Noble | 47 min |
| Aug 13, 5:24 PM EDT | Severe Thunderstorm Warning | PBZ | Columbiana | 39 min |
| Aug 13, 5:29 PM EDT | Severe Thunderstorm Warning | PBZ | Noble | 31 min |
| Aug 13, 5:45 PM EDT | Severe Thunderstorm Warning | PBZ | Guernsey, Muskingum | 45 min |
| Aug 13, 5:56 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Noble | 34 min |
| Aug 13, 6:13 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Harrison, Jefferson | 47 min |
| Aug 13, 6:39 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Harrison, Jefferson | 27 min |
| Aug 13, 6:56 PM EDT | Severe Thunderstorm Warning | PBZ | Jefferson | 49 min |
| Aug 13, 7:11 PM EDT | Severe Thunderstorm Warning | CLE | Ashtabula | 49 min |
| Aug 13, 8:05 PM EDT | Severe Thunderstorm Warning | CLE | Stark, Summit, Wayne | 29 min |
| Aug 13, 8:38 PM EDT | Severe Thunderstorm Warning | CLE | Mahoning, Trumbull | 27 min |
| Aug 25, 1:32 PM EDT | Severe Thunderstorm Warning | PBZ | Coshocton, Muskingum | 43 min |
| Aug 26, 3:10 PM EDT | Severe Thunderstorm Warning | ILN | Montgomery | 17 min |
| Aug 27, 6:18 PM EDT | Severe Thunderstorm Warning | ILN | Brown, Clermont | 42 min |
| Aug 27, 6:26 PM EDT | Severe Thunderstorm Warning | ILN | Brown, Butler, Clermont, Clinton, Hamilton, Warren | 34 min |
| Aug 27, 7:52 PM EDT | Severe Thunderstorm Warning | ILN | Miami | 38 min |
| Aug 27, 7:54 PM EDT | Severe Thunderstorm Warning | ILN | Shelby | 18 min |
| Aug 29, 1:55 PM EDT | Severe Thunderstorm Warning | RLX | Athens, Washington | 35 min |
| Aug 29, 2:21 PM EDT | Severe Thunderstorm Warning | RLX | Washington | 39 min |
| Aug 29, 3:14 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Columbiana | 31 min |
| Aug 29, 3:38 PM EDT | Severe Thunderstorm Warning | PBZ | Columbiana | 37 min |
| Aug 29, 7:15 PM EDT | Severe Thunderstorm Warning | CLE | Hancock, Wyandot | 27 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jefferson County10
- Portage County10
- Guernsey County9
- Belmont County8
- Tuscarawas County7
- Columbiana County7
- Harrison County7
- Noble County7
- Summit County7
- Coshocton County6
- Carroll County6
- Monroe County6
- Defiance County6
- Trumbull County6
- Knox County5
- Erie County5
- Seneca County5
- Muskingum County5
- Crawford County5
- Mahoning County5
- Ashland County5
- Geauga County5
- Ashtabula County5
- Stark County4
- Henry County4
- Paulding County4
- Ottawa County4
- Hancock County4
- Huron County4
- Richland County4
- Madison County4
- Darke County3
- Holmes County3
- Gallia County3
- Lawrence County3
- Putnam County3
- Lucas County3
- Sandusky County3
- Wood County3
- Wyandot County3
41 more counties
- Van Wert County3
- Logan County3
- Shelby County3
- Miami County3
- Delaware County3
- Morrow County3
- Cuyahoga County3
- Wayne County3
- Pickaway County3
- Pike County3
- Washington County3
- Brown County3
- Hamilton County2
- Lorain County2
- Fulton County2
- Williams County2
- Auglaize County2
- Mercer County2
- Marion County2
- Union County2
- Medina County2
- Franklin County2
- Lake County2
- Clark County2
- Highland County2
- Athens County2
- Clermont County2
- Allen County1
- Hardin County1
- Licking County1
- Champaign County1
- Scioto County1
- Jackson County1
- Fayette County1
- Ross County1
- Meigs County1
- Adams County1
- Montgomery County1
- Butler County1
- Clinton County1
- Warren County1
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.