Alert archive / Ohio / Mesoscale Discussions
Mesoscale Discussions in Ohio, 2026
155 mesoscale discussions 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Mesoscale Discussions
- 155
- Busiest month
- August31 mesoscale discussions
- Busiest day
- March 11, 20267 mesoscale discussions
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 |
|---|---|---|---|---|
| Jan 17, 11:00 AM EST | Mesoscale Discussion | SPC | Ashtabula, Carroll, Columbiana, Coshocton, Geauga, Guernsey and 10 more | 4 hr |
| Jan 25, 12:00 AM EST | Mesoscale Discussion | SPC | Brown, Butler, Champaign, Clark, Clermont, Clinton and 17 more | 6 hr |
| Jan 25, 10:00 AM EST | Mesoscale Discussion | SPC | Ashland, Butler, Carroll, Champaign, Clark, Clinton and 43 more | 3 hr |
| Mar 2, 6:29 AM EST | Mesoscale Discussion | SPC | Adams, Athens, Brown, Butler, Champaign, Clark and 26 more | 3 hr |
| Mar 6, 7:37 PM EST | Mesoscale Discussion | SPC | Williams | 113 min |
| Mar 7, 8:52 AM EST | Mesoscale Discussion | SPC | Allen, Auglaize, Butler, Champaign, Clark, Clermont and 16 more | 83 min |
| Mar 7, 12:57 PM EST | Mesoscale Discussion | SPC | Athens, Belmont, Carroll, Columbiana, Coshocton, Fairfield and 28 more | 2 hr |
| Mar 11, 1:56 AM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Henry, Paulding, Williams, Wood | 64 min |
| Mar 11, 5:23 AM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Champaign, Clark, Crawford, Darke and 15 more | 2 hr |
| Mar 11, 8:49 AM EDT | Mesoscale Discussion | SPC | Adams, Allen, Ashland, Auglaize, Brown, Butler and 41 more | 86 min |
| Mar 11, 10:10 AM EDT | Mesoscale Discussion | SPC | Ashland, Belmont, Carroll, Columbiana, Coshocton, Crawford and 26 more | 2 hr |
| Mar 11, 11:40 AM EDT | Mesoscale Discussion | SPC | Adams, Brown, Clermont, Clinton, Fairfield, Fayette and 11 more | 2 hr |
| Mar 11, 1:50 PM EDT | Mesoscale Discussion | SPC | Athens, Belmont, Gallia, Guernsey, Harrison, Hocking and 9 more | 85 min |
| Mar 11, 2:36 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Clermont, Hamilton, Highland | 84 min |
| Mar 15, 11:15 PM EDT | Mesoscale Discussion | SPC | Brown, Butler, Clermont, Clinton, Darke, Greene and 6 more | 60 min |
| Mar 16, 12:14 AM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Henry, Paulding, Putnam, Williams | 2 hr |
| Mar 16, 6:13 PM EDT | Mesoscale Discussion | SPC | Belmont, Columbiana, Jefferson, Mahoning, Monroe | 4 hr |
| Mar 22, 3:02 PM EDT | Mesoscale Discussion | SPC | Belmont, Guernsey, Harrison, Jefferson, Monroe, Morgan and 1 more | 88 min |
| Mar 22, 4:50 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Champaign, Clark, Clermont and 25 more | 2 hr |
| Mar 22, 6:36 PM EDT | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 6 more | 114 min |
| Mar 22, 8:20 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Butler, Champaign, Clark, Clermont and 29 more | 85 min |
| Mar 22, 9:07 PM EDT | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 12 more | 83 min |
| Mar 22, 11:04 PM EDT | Mesoscale Discussion | SPC | Adams, Athens, Brown, Butler, Clermont, Clinton and 15 more | 86 min |
| Mar 26, 3:48 PM EDT | Mesoscale Discussion | SPC | Darke, Defiance, Mercer, Paulding, Van Wert, Williams | 117 min |
| Mar 26, 4:25 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont and 61 more | 95 min |
| Mar 26, 7:40 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Carroll, Champaign, Clark and 32 more | 95 min |
| Mar 26, 10:25 PM EDT | Mesoscale Discussion | SPC | Belmont, Coshocton, Guernsey, Harrison, Jefferson, Licking and 3 more | 65 min |
| Mar 31, 11:55 AM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Champaign, Darke, Defiance, Fulton and 16 more | 2 hr |
| Mar 31, 4:22 PM EDT | Mesoscale Discussion | SPC | Ashtabula, Cuyahoga, Erie, Geauga, Huron, Lake and 5 more | 113 min |
| Mar 31, 7:42 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Crawford, Cuyahoga, Defiance, Erie and 17 more | 2 hr |
| Mar 31, 9:58 PM EDT | Mesoscale Discussion | SPC | Carroll, Columbiana, Coshocton, Harrison, Jefferson, Mahoning and 3 more | 2 hr |
| Apr 1, 1:06 PM EDT | Mesoscale Discussion | SPC | Adams, Athens, Belmont, Brown, Butler, Clermont and 23 more | 114 min |
| Apr 1, 4:40 PM EDT | Mesoscale Discussion | SPC | Adams, Athens, Brown, Clermont, Gallia, Highland and 11 more | 2 hr |
| Apr 1, 6:57 PM EDT | Mesoscale Discussion | SPC | Gallia, Lawrence, Meigs | 93 min |
| Apr 3, 4:15 PM EDT | Mesoscale Discussion | SPC | Ashland, Belmont, Brown, Butler, Carroll, Champaign and 47 more | 2 hr |
| Apr 4, 1:46 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Ashtabula, Auglaize, Butler, Champaign and 44 more | 2 hr |
| Apr 4, 4:39 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Ashtabula, Auglaize, Champaign, Clark and 42 more | 2 hr |
| Apr 4, 6:55 PM EDT | Mesoscale Discussion | SPC | Ashland, Ashtabula, Crawford, Cuyahoga, Delaware, Erie and 27 more | 95 min |
| Apr 13, 6:09 PM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Henry, Lucas, Paulding, Williams and 1 more | 96 min |
| Apr 14, 2:03 PM EDT | Mesoscale Discussion | SPC | Ashland, Carroll, Columbiana, Cuyahoga, Geauga, Holmes and 12 more | 87 min |
| Apr 14, 5:52 PM EDT | Mesoscale Discussion | SPC | Belmont, Jefferson | 83 min |
| Apr 14, 6:47 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Butler, Champaign, Clark, Darke and 16 more | 88 min |
| Apr 15, 12:55 AM EDT | Mesoscale Discussion | SPC | Erie, Fulton, Henry, Huron, Lorain, Lucas and 5 more | 65 min |
| Apr 15, 2:12 AM EDT | Mesoscale Discussion | SPC | Defiance, Erie, Fulton, Henry, Lorain, Lucas and 4 more | 93 min |
| Apr 15, 1:44 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Ashtabula, Auglaize, Columbiana, Crawford and 34 more | 3 hr |
| Apr 15, 4:24 PM EDT | Mesoscale Discussion | SPC | Cuyahoga, Erie, Geauga, Huron, Lorain, Medina and 4 more | 66 min |
| Apr 16, 2:36 PM EDT | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Guernsey, Harrison, Jefferson and 8 more | 84 min |
| Apr 16, 4:33 PM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Henry, Paulding, Putnam, Van Wert and 1 more | 57 min |
| Apr 18, 12:38 PM EDT | Mesoscale Discussion | SPC | Adams, Ashland, Athens, Belmont, Brown, Carroll and 37 more | 3 hr |
| Apr 22, 12:37 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Defiance, Fulton, Hancock, Hardin and 11 more | 2 hr |
| Apr 22, 6:07 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Athens, Auglaize, Champaign, Clark and 43 more | 113 min |
| Apr 24, 2:22 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Butler, Darke, Defiance, Fulton and 14 more | 2 hr |
| Apr 28, 2:00 AM EDT | Mesoscale Discussion | SPC | Adams, Scioto | 2 hr |
| Apr 29, 1:48 PM EDT | Mesoscale Discussion | SPC | Belmont, Jefferson, Monroe | 117 min |
| May 4, 4:42 PM EDT | Mesoscale Discussion | SPC | Allen, Defiance, Fulton, Hancock, Henry, Lucas and 8 more | 2 hr |
| May 9, 1:29 PM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Hancock, Henry, Lucas, Ottawa and 5 more | 2 hr |
| May 9, 4:36 PM EDT | Mesoscale Discussion | SPC | Ashtabula, Cuyahoga, Erie, Geauga, Henry, Huron and 11 more | 84 min |
| May 9, 6:39 PM EDT | Mesoscale Discussion | SPC | Ashtabula, Cuyahoga, Geauga, Lake, Portage, Summit and 1 more | 66 min |
| May 13, 12:41 PM EDT | Mesoscale Discussion | SPC | Belmont, Harrison, Jefferson, Meigs, Monroe, Noble and 1 more | 3 hr |
| May 18, 2:50 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Butler, Champaign, Clark, Darke and 23 more | 85 min |
| May 19, 1:44 PM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Henry, Lucas, Ottawa, Paulding and 5 more | 91 min |
| May 19, 4:26 PM EDT | Mesoscale Discussion | SPC | Darke, Mercer, Paulding, Van Wert | 64 min |
| May 19, 6:11 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Butler, Champaign, Clark, Darke and 21 more | 64 min |
| May 19, 7:39 PM EDT | Mesoscale Discussion | SPC | Adams, Ashland, Brown, Butler, Champaign, Clark and 33 more | 66 min |
| May 20, 7:50 AM EDT | Mesoscale Discussion | SPC | Adams, Ashland, Athens, Belmont, Brown, Carroll and 34 more | 115 min |
| May 20, 1:06 PM EDT | Mesoscale Discussion | SPC | Athens, Gallia, Jackson, Lawrence, Meigs, Scioto and 1 more | 114 min |
| May 27, 12:31 PM EDT | Mesoscale Discussion | SPC | Athens, Gallia, Lawrence, Meigs, Monroe, Noble and 1 more | 119 min |
| May 27, 6:54 PM EDT | Mesoscale Discussion | SPC | Gallia, Jackson, Lawrence, Meigs | 2 hr |
| Jun 6, 6:39 AM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Darke, Mercer, Miami, Montgomery and 4 more | 2 hr |
| Jun 6, 11:07 AM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Belmont, Carroll, Champaign and 46 more | 2 hr |
| Jun 6, 3:06 PM EDT | Mesoscale Discussion | SPC | Darke, Defiance, Mercer, Paulding, Van Wert | 114 min |
| Jun 6, 5:42 PM EDT | Mesoscale Discussion | SPC | Ashland, Belmont, Carroll, Coshocton, Crawford, Cuyahoga and 29 more | 63 min |
| Jun 6, 8:11 PM EDT | Mesoscale Discussion | SPC | Ashland, Athens, Belmont, Carroll, Coshocton, Crawford and 26 more | 94 min |
| Jun 10, 4:58 PM EDT | Mesoscale Discussion | SPC | Williams | 2 hr |
| Jun 11, 12:27 PM EDT | Mesoscale Discussion | SPC | Ashtabula, Belmont, Carroll, Columbiana, Geauga, Guernsey and 13 more | 2 hr |
| Jun 11, 7:38 PM EDT | Mesoscale Discussion | SPC | Paulding, Van Wert, Williams | 97 min |
| Jun 11, 11:42 PM EDT | Mesoscale Discussion | SPC | Ashland, Crawford, Cuyahoga, Erie, Geauga, Hancock and 13 more | 93 min |
| Jun 14, 1:40 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Athens, Auglaize, Belmont, Butler and 63 more | 5 min |
| Jun 14, 4:52 PM EDT | Mesoscale Discussion | SPC | Adams, Athens, Belmont, Brown, Carroll, Clermont and 34 more | 113 min |
| Jun 16, 1:22 PM EDT | Mesoscale Discussion | SPC | Williams | 113 min |
| Jun 17, 9:27 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Clark, Clermont, Clinton and 14 more | 3 hr |
| Jun 18, 12:27 AM EDT | Mesoscale Discussion | SPC | Brown, Butler, Clermont, Clinton, Greene, Hamilton and 4 more | 93 min |
| Jun 18, 3:29 AM EDT | Mesoscale Discussion | SPC | Adams, Brown, Clermont, Highland, Lawrence, Pike and 1 more | 91 min |
| Jun 21, 8:24 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Clark, Clermont, Clinton and 9 more | 36 min |
| Jun 25, 3:10 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Carroll, Champaign, Clark and 43 more | 2 hr |
| Jun 25, 5:52 PM EDT | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Guernsey, Harrison, Jefferson and 8 more | 23 min |
| Jul 3, 5:42 PM EDT | Mesoscale Discussion | SPC | Lucas | 2 hr |
| Jul 3, 7:07 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Champaign, Crawford, Darke and 24 more | 113 min |
| Jul 4, 1:36 PM EDT | Mesoscale Discussion | SPC | Ashland, Belmont, Carroll, Columbiana, Coshocton, Delaware and 24 more | 2 hr |
| Jul 5, 1:24 PM EDT | Mesoscale Discussion | SPC | Ashland, Carroll, Columbiana, Holmes, Mahoning, Medina and 6 more | 3 hr |
| Jul 6, 5:58 PM EDT | Mesoscale Discussion | SPC | Carroll, Columbiana, Jefferson, Mahoning | 2 hr |
| Jul 18, 12:18 PM EDT | Mesoscale Discussion | SPC | Ashtabula, Carroll, Columbiana, Geauga, Mahoning, Portage and 3 more | 117 min |
| Jul 18, 12:37 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Champaign, Crawford, Darke, Defiance and 25 more | 113 min |
| Jul 18, 3:28 PM EDT | Mesoscale Discussion | SPC | Ashtabula, Cuyahoga, Erie, Geauga, Lake, Lorain and 1 more | 92 min |
| Jul 18, 6:47 PM EDT | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Coshocton, Fairfield, Guernsey and 7 more | 118 min |
| Jul 21, 12:15 PM EDT | Mesoscale Discussion | SPC | Adams, Athens, Brown, Gallia, Highland, Hocking and 10 more | 2 hr |
| Jul 21, 3:08 PM EDT | Mesoscale Discussion | SPC | Adams, Athens, Belmont, Brown, Clermont, Clinton and 25 more | 97 min |
| Jul 21, 4:16 PM EDT | Mesoscale Discussion | SPC | Ashland, Ashtabula, Crawford, Cuyahoga, Geauga, Huron and 9 more | 89 min |
| Jul 21, 7:02 PM EDT | Mesoscale Discussion | SPC | Gallia, Lawrence, Meigs, Washington | 58 min |
| Jul 27, 4:48 PM EDT | Mesoscale Discussion | SPC | Auglaize, Butler, Champaign, Clark, Clinton, Darke and 9 more | 117 min |
| Aug 1, 1:31 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Clermont, Hamilton, Preble and 1 more | 2 hr |
| Aug 1, 7:44 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Champaign, Clark, Clermont and 15 more | 2 hr |
| Aug 7, 1:33 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Champaign, Clark, Clermont and 22 more | 2 hr |
| Aug 8, 5:54 PM EDT | Mesoscale Discussion | SPC | Ashland, Ashtabula, Carroll, Columbiana, Coshocton, Crawford and 29 more | 2 hr |
| Aug 9, 4:39 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Crawford, Defiance, Erie, Fulton and 15 more | 2 hr |
| Aug 9, 7:22 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Crawford, Defiance, Erie and 20 more | 83 min |
| Aug 9, 9:51 PM EDT | Mesoscale Discussion | SPC | Ashland, Crawford, Delaware, Erie, Franklin, Holmes and 10 more | 114 min |
| Aug 10, 8:41 AM EDT | Mesoscale Discussion | SPC | Ashtabula, Columbiana, Geauga, Lake, Mahoning, Portage and 3 more | 2 hr |
| Aug 10, 12:30 PM EDT | Mesoscale Discussion | SPC | Athens, Gallia, Hocking, Jackson, Lawrence, Meigs and 7 more | 2 hr |
| Aug 10, 2:29 PM EDT | Mesoscale Discussion | SPC | Adams, Auglaize, Brown, Champaign, Clark, Clinton and 12 more | 91 min |
| Aug 10, 6:15 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Darke, Defiance, Henry, Logan and 9 more | 2 hr |
| Aug 10, 9:00 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Champaign, Darke, Defiance, Hardin and 7 more | 90 min |
| Aug 10, 10:52 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Champaign, Clark, Coshocton, Crawford and 20 more | 83 min |
| Aug 11, 8:00 AM EDT | Mesoscale Discussion | SPC | Brown, Butler, Champaign, Clark, Clermont, Clinton and 12 more | 2 hr |
| Aug 11, 11:18 AM EDT | Mesoscale Discussion | SPC | Adams, Athens, Brown, Butler, Clark, Clermont and 21 more | 117 min |
| Aug 11, 12:12 PM EDT | Mesoscale Discussion | SPC | Brown, Butler, Champaign, Clark, Clermont, Clinton and 10 more | 63 min |
| Aug 11, 1:57 PM EDT | Mesoscale Discussion | SPC | Butler, Clermont, Hamilton, Montgomery, Preble, Warren | 2 hr |
| Aug 11, 3:52 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Clermont, Clinton, Hamilton and 1 more | 113 min |
| Aug 14, 12:03 AM EDT | Mesoscale Discussion | SPC | Butler, Darke, Hamilton, Montgomery, Preble | 117 min |
| Aug 15, 2:08 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Clermont, Clinton, Fayette, Hamilton and 4 more | 2 hr |
| Aug 15, 4:56 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Champaign, Clark, Darke, Delaware and 13 more | 2 hr |
| Aug 15, 9:23 PM EDT | Mesoscale Discussion | SPC | Champaign, Delaware, Franklin, Madison, Union | 97 min |
| Aug 16, 11:56 AM EDT | Mesoscale Discussion | SPC | Ashland, Athens, Belmont, Carroll, Columbiana, Coshocton and 26 more | 64 min |
| Aug 16, 2:28 PM EDT | Mesoscale Discussion | SPC | Athens, Belmont, Carroll, Columbiana, Coshocton, Gallia and 20 more | 2 hr |
| Aug 16, 6:00 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Clermont, Hamilton | 60 min |
| Aug 16, 6:31 PM EDT | Mesoscale Discussion | SPC | Gallia, Jackson, Lawrence, Meigs, Vinton | 89 min |
| Aug 19, 5:52 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Champaign, Darke, Delaware, Hardin and 8 more | 83 min |
| Aug 22, 11:38 AM EDT | Mesoscale Discussion | SPC | Ashland, Ashtabula, Athens, Belmont, Carroll, Columbiana and 35 more | 3 hr |
| Aug 22, 3:50 PM EDT | Mesoscale Discussion | SPC | Ashland, Ashtabula, Athens, Belmont, Carroll, Columbiana and 32 more | 115 min |
| Aug 23, 8:02 PM EDT | Mesoscale Discussion | SPC | Ashtabula, Cuyahoga, Geauga, Lake, Portage, Summit and 1 more | 88 min |
| Aug 26, 1:22 PM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Henry, Paulding, Van Wert, Williams | 113 min |
| Sep 2, 6:04 AM EDT | Mesoscale Discussion | SPC | Ashtabula, Geauga, Lake, Trumbull | 116 min |
| Sep 2, 8:51 AM EDT | Mesoscale Discussion | SPC | Ashtabula, Lake, Trumbull | 84 min |
| Sep 2, 3:58 PM EDT | Mesoscale Discussion | SPC | Columbiana, Geauga, Mahoning, Portage, Stark, Summit and 1 more | 92 min |
| Sep 2, 4:46 PM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Henry, Lucas, Ottawa, Sandusky and 2 more | 89 min |
| Sep 2, 8:48 PM EDT | Mesoscale Discussion | SPC | Ashtabula | 87 min |
| Sep 3, 2:07 AM EDT | Mesoscale Discussion | SPC | Trumbull | 113 min |
| Sep 3, 1:44 PM EDT | Mesoscale Discussion | SPC | Ashtabula, Cuyahoga, Erie, Fulton, Geauga, Huron and 10 more | 3 hr |
| Sep 3, 4:02 PM EDT | Mesoscale Discussion | SPC | Ashland, Ashtabula, Cuyahoga, Erie, Fulton, Geauga and 12 more | 118 min |
| Sep 3, 4:16 PM EDT | Mesoscale Discussion | SPC | Carroll, Columbiana, Harrison, Jefferson, Mahoning, Portage and 3 more | 119 min |
| Sep 3, 6:43 PM EDT | Mesoscale Discussion | SPC | Ashland, Carroll, Columbiana, Coshocton, Crawford, Geauga and 17 more | 92 min |
| Sep 4, 1:31 PM EDT | Mesoscale Discussion | SPC | Gallia, Meigs, Washington | 119 min |
| Sep 4, 3:35 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Clermont, Clinton, Fayette and 9 more | 115 min |
| Sep 4, 10:01 PM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Paulding, Williams | 3 hr |
| Sep 5, 1:41 AM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Butler, Champaign, Clark and 40 more | 94 min |
| Sep 5, 3:59 AM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Champaign, Clark, Crawford, Defiance and 22 more | 91 min |
| Sep 5, 4:01 PM EDT | Mesoscale Discussion | SPC | Adams, Athens, Brown, Butler, Clark, Clermont and 20 more | 119 min |
| Sep 9, 2:06 PM EDT | Mesoscale Discussion | SPC | Ashland, Carroll, Columbiana, Crawford, Geauga, Hardin and 13 more | 84 min |
| Sep 9, 4:42 PM EDT | Mesoscale Discussion | SPC | Ashland, Carroll, Columbiana, Coshocton, Crawford, Cuyahoga and 16 more | 93 min |
| Sep 9, 7:18 PM EDT | Mesoscale Discussion | SPC | Auglaize, Champaign, Clark, Darke, Delaware, Fayette and 14 more | 117 min |
| Sep 12, 2:22 PM EDT | Mesoscale Discussion | SPC | Athens, Belmont, Gallia, Jefferson, Lawrence, Meigs and 3 more | 113 min |
| Sep 13, 3:59 PM EDT | Mesoscale Discussion | SPC | Carroll, Columbiana, Harrison, Holmes, Jefferson, Mahoning and 6 more | 2 hr |
| Sep 16, 3:46 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Butler, Champaign, Clark, Clinton and 26 more | 119 min |
| Sep 20, 7:38 PM EDT | Mesoscale Discussion | SPC | Butler, Champaign, Clark, Clinton, Darke, Fayette and 7 more | 2 hr |
| Sep 20, 8:39 PM EDT | Mesoscale Discussion | SPC | Clinton, Fayette, Greene, Highland, Montgomery, Ross and 1 more | 96 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Portage County47
- Trumbull County45
- Summit County43
- Stark County42
- Darke County41
- Miami County41
- Montgomery County41
- Mahoning County40
- Champaign County40
- Wayne County39
- Shelby County39
- Columbiana County38
- Jefferson County38
- Clark County38
- Carroll County37
- Geauga County37
- Butler County37
- Greene County37
- Warren County37
- Ashland County37
- Hardin County37
- Marion County37
- Wyandot County37
- Holmes County36
- Clinton County36
- Fayette County36
- Madison County36
- Crawford County36
- Medina County36
- Richland County36
- Fairfield County35
- Preble County35
- Huron County35
- Logan County35
- Auglaize County35
- Tuscarawas County34
- Franklin County34
- Knox County34
- Allen County34
- Van Wert County34
48 more counties
- Harrison County33
- Brown County33
- Clermont County33
- Hamilton County33
- Highland County33
- Ross County33
- Morrow County33
- Sandusky County33
- Coshocton County32
- Pickaway County32
- Licking County32
- Union County32
- Belmont County32
- Mercer County32
- Putnam County32
- Guernsey County31
- Monroe County31
- Noble County31
- Paulding County31
- Wood County31
- Delaware County30
- Lorain County30
- Hocking County29
- Muskingum County29
- Williams County29
- Defiance County29
- Henry County29
- Hancock County29
- Pike County28
- Cuyahoga County28
- Adams County28
- Seneca County28
- Erie County28
- Morgan County27
- Fulton County27
- Vinton County26
- Perry County26
- Meigs County26
- Washington County26
- Athens County25
- Lucas County25
- Gallia County24
- Ottawa County24
- Ashtabula County23
- Scioto County23
- Jackson County22
- Lawrence County21
- Lake County20
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.