Alert archive / Ohio / Mesoscale Discussions

Mesoscale Discussions in Ohio, 2011

195 mesoscale discussions in 2011. 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 2011. Tap one for its archive.

Mesoscale Discussions
195
Busiest month
May40 mesoscale discussions
Busiest day
May 23, 20118 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.

IssuedProductOfficeCountiesLasted
Jan 20, 3:36 PM ESTMesoscale DiscussionSPCAdams, Athens, Brown, Clermont, Clinton, Coshocton and 25 more3 hr
Jan 26, 7:30 AM ESTMesoscale DiscussionSPCAthens, Belmont, Jefferson, Monroe, Noble, Washington5 hr
Jan 31, 7:56 PM ESTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Butler, Champaign, Clark and 37 more5 hr
Feb 1, 12:12 AM ESTMesoscale DiscussionSPCAshtabula, Carroll, Columbiana, Cuyahoga, Geauga, Harrison and 8 more5 hr
Feb 1, 4:54 PM ESTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Carroll, Champaign, Clark and 49 more5 hr
Feb 20, 11:50 PM ESTMesoscale DiscussionSPCAshtabula, Geauga, Mahoning, Portage, Trumbull5 hr
Feb 21, 10:20 AM ESTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Champaign, Crawford, Darke and 30 more5 hr
Feb 21, 6:33 PM ESTMesoscale DiscussionSPCBelmont, Fairfield, Franklin, Guernsey, Hocking, Licking and 8 more5 hr
Feb 24, 10:41 PM ESTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Crawford, Cuyahoga, Darke and 30 more6 hr
Feb 25, 2:46 AM ESTMesoscale DiscussionSPCAllen, Ashland, Ashtabula, Auglaize, Crawford, Cuyahoga and 28 more4 hr
Feb 28, 1:28 AM ESTMesoscale DiscussionSPCAdams, Brown, Butler, Champaign, Clark, Clermont and 31 more32 min
Feb 28, 3:32 AM ESTMesoscale DiscussionSPCAdams, Ashland, Athens, Auglaize, Brown, Butler and 50 more58 min
Feb 28, 4:25 AM ESTMesoscale DiscussionSPCAdams65 min
Feb 28, 5:31 AM ESTMesoscale DiscussionSPCAthens, Belmont, Carroll, Columbiana, Gallia, Guernsey and 16 more29 min
Mar 21, 3:07 PM EDTMesoscale DiscussionSPCAdams, Athens, Brown, Butler, Clermont, Clinton and 18 more83 min
Mar 23, 12:02 PM EDTMesoscale DiscussionSPCAdams, Athens, Belmont, Brown, Butler, Champaign and 39 more88 min
Mar 23, 1:12 PM EDTMesoscale DiscussionSPCDefiance, Fulton, Hancock, Henry, Paulding, Putnam and 5 more93 min
Mar 23, 3:54 PM EDTMesoscale DiscussionSPCAdams, Athens, Belmont, Brown, Carroll, Clark and 38 more96 min
Mar 23, 7:37 PM EDTMesoscale DiscussionSPCDarke, Preble83 min
Apr 4, 5:20 AM EDTMesoscale DiscussionSPCAllen, Auglaize, Butler, Champaign, Crawford, Darke and 21 more25 min
Apr 4, 7:53 AM EDTMesoscale DiscussionSPCAshland, Ashtabula, Auglaize, Butler, Champaign, Clark and 39 more2 hr
Apr 4, 12:50 PM EDTMesoscale DiscussionSPCBrown, Butler, Champaign, Clark, Clermont, Clinton and 13 more25 min
Apr 4, 2:25 PM EDTMesoscale DiscussionSPCAdams, Brown, Lawrence, Scioto65 min
Apr 4, 4:12 PM EDTMesoscale DiscussionSPCAthens, Belmont, Carroll, Columbiana, Coshocton, Guernsey and 12 more63 min
Apr 4, 4:49 PM EDTMesoscale DiscussionSPCLawrence56 min
Apr 4, 6:00 PM EDTMesoscale DiscussionSPCLawrence, Monroe, Washington90 min
Apr 8, 1:02 PM EDTMesoscale DiscussionSPCAdams, Brown, Clermont, Gallia, Hamilton, Highland and 4 more118 min
Apr 11, 1:48 AM EDTMesoscale DiscussionSPCDefiance, Williams87 min
Apr 11, 12:24 PM EDTMesoscale DiscussionSPCGallia, Lawrence, Meigs, Monroe, Washington36 min
Apr 11, 3:44 PM EDTMesoscale DiscussionSPCAthens, Gallia, Lawrence, Meigs, Washington61 min
Apr 16, 1:34 PM EDTMesoscale DiscussionSPCAshtabula, Belmont, Carroll, Columbiana, Cuyahoga, Geauga and 15 more116 min
Apr 19, 3:21 PM EDTMesoscale DiscussionSPCMonroe, Washington54 min
Apr 19, 9:47 PM EDTMesoscale DiscussionSPCBrown, Butler, Champaign, Clark, Clermont, Clinton and 9 more88 min
Apr 19, 11:47 PM EDTMesoscale DiscussionSPCAshland, Carroll, Crawford, Fulton, Hancock, Henry and 14 more58 min
Apr 20, 12:56 AM EDTMesoscale DiscussionSPCAdams, Brown, Butler, Clark, Clermont, Clinton and 17 more94 min
Apr 20, 3:20 AM EDTMesoscale DiscussionSPCAthens, Belmont, Carroll, Columbiana, Gallia, Guernsey and 10 more85 min
Apr 23, 11:51 AM EDTMesoscale DiscussionSPCAdams, Brown, Butler, Clermont, Clinton, Hamilton and 8 more84 min
Apr 23, 3:56 PM EDTMesoscale DiscussionSPCAdams, Athens, Brown, Gallia, Highland, Jackson and 5 more64 min
Apr 25, 1:52 PM EDTMesoscale DiscussionSPCAshland, Belmont, Carroll, Columbiana, Coshocton, Cuyahoga and 21 more83 min
Apr 25, 6:00 PM EDTMesoscale DiscussionSPCBelmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 13 more60 min
Apr 26, 1:26 PM EDTMesoscale DiscussionSPCAllen, Auglaize, Darke, Defiance, Fulton, Hancock and 11 more94 min
Apr 26, 8:33 PM EDTMesoscale DiscussionSPCAllen, Auglaize, Darke, Defiance, Fulton, Henry and 6 more57 min
Apr 26, 9:35 PM EDTMesoscale DiscussionSPCPreble55 min
Apr 27, 9:39 AM EDTMesoscale DiscussionSPCAdams, Ashland, Athens, Belmont, Champaign, Clark and 36 more66 min
Apr 27, 1:24 PM EDTMesoscale DiscussionSPCAshtabula, Belmont, Carroll, Columbiana, Guernsey, Harrison and 9 more96 min
Apr 27, 5:38 PM EDTMesoscale DiscussionSPCAdams, Brown, Gallia, Lawrence, Scioto37 min
Apr 27, 9:22 PM EDTMesoscale DiscussionSPCAdams, Allen, Auglaize, Brown, Butler, Champaign and 37 more53 min
Apr 28, 12:51 AM EDTMesoscale DiscussionSPCAllen, Fulton, Hancock, Henry, Lucas, Putnam and 1 more54 min
Apr 28, 3:19 AM EDTMesoscale DiscussionSPCAshland, Belmont, Carroll, Columbiana, Coshocton, Crawford and 22 more56 min
Apr 28, 1:38 PM EDTMesoscale DiscussionSPCBrown, Butler, Clermont, Hamilton, Montgomery, Preble and 1 more97 min
May 10, 11:21 AM EDTMesoscale DiscussionSPCAdams, Brown, Butler, Clark, Clermont, Clinton and 15 more114 min
May 10, 4:32 PM EDTMesoscale DiscussionSPCAdams, Auglaize, Brown, Butler, Champaign, Clark and 25 more88 min
May 10, 7:17 PM EDTMesoscale DiscussionSPCAdams, Athens, Brown, Gallia, Highland, Hocking and 7 more28 min
May 10, 11:17 PM EDTMesoscale DiscussionSPCAdams, Brown, Gallia, Lawrence, Scioto58 min
May 11, 12:37 AM EDTMesoscale DiscussionSPCAdams, Allen, Auglaize, Champaign, Clark, Delaware and 21 more53 min
May 11, 5:07 AM EDTMesoscale DiscussionSPCAdams, Auglaize, Brown, Champaign, Clark, Clermont and 15 more53 min
May 12, 10:30 AM EDTMesoscale DiscussionSPCAshland, Belmont, Carroll, Coshocton, Crawford, Erie and 21 more90 min
May 12, 3:36 PM EDTMesoscale DiscussionSPCAshland, Belmont, Carroll, Coshocton, Guernsey, Harrison and 12 more84 min
May 12, 6:52 PM EDTMesoscale DiscussionSPCAshland, Ashtabula, Belmont, Carroll, Columbiana, Coshocton and 26 more
May 18, 11:55 AM EDTMesoscale DiscussionSPCBelmont, Harrison, Jefferson65 min
May 18, 3:08 PM EDTMesoscale DiscussionSPCAshland, Belmont, Carroll, Columbiana, Crawford, Cuyahoga and 20 more67 min
May 22, 2:51 PM EDTMesoscale DiscussionSPCAdams, Allen, Athens, Auglaize, Brown, Butler and 51 more54 min
May 22, 3:15 PM EDTMesoscale DiscussionSPCFulton, Lucas, Williams60 min
May 22, 4:44 PM EDTMesoscale DiscussionSPCAdams, Brown, Gallia, Jackson, Lawrence, Meigs and 3 more61 min
May 22, 7:26 PM EDTMesoscale DiscussionSPCAthens, Gallia, Hocking, Jackson, Lawrence, Meigs and 6 more2 hr
May 22, 8:20 PM EDTMesoscale DiscussionSPCDefiance, Fulton, Henry, Mercer, Paulding, Putnam and 2 more115 min
May 23, 4:20 AM EDTMesoscale DiscussionSPCAdams, Brown, Clermont85 min
May 23, 8:25 AM EDTMesoscale DiscussionSPCAllen, Ashland, Ashtabula, Auglaize, Champaign, Clark and 40 more65 min
May 23, 12:35 PM EDTMesoscale DiscussionSPCAllen, Auglaize, Defiance, Fulton, Henry, Lucas and 6 more85 min
May 23, 3:52 PM EDTMesoscale DiscussionSPCButler, Clermont, Hamilton, Montgomery, Preble, Warren53 min
May 23, 6:20 PM EDTMesoscale DiscussionSPCAdams, Allen, Ashland, Auglaize, Brown, Butler and 46 more55 min
May 23, 6:40 PM EDTMesoscale DiscussionSPCAllen, Auglaize, Defiance, Fulton, Hancock, Henry and 7 more65 min
May 23, 7:20 PM EDTMesoscale DiscussionSPCAthens, Belmont, Coshocton, Gallia, Guernsey, Harrison and 15 more85 min
May 23, 8:07 PM EDTMesoscale DiscussionSPCAshtabula, Carroll, Columbiana, Cuyahoga, Geauga, Holmes and 9 more83 min
May 24, 2:11 PM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Crawford, Hancock, Hardin and 17 more94 min
May 25, 1:26 PM EDTMesoscale DiscussionSPCAllen, Auglaize, Champaign, Clark, Clinton, Crawford and 36 more94 min
May 25, 4:45 PM EDTMesoscale DiscussionSPCAllen, Ashland, Ashtabula, Auglaize, Carroll, Columbiana and 37 more60 min
May 25, 8:14 PM EDTMesoscale DiscussionSPCAdams, Ashland, Ashtabula, Athens, Belmont, Brown and 54 more2 hr
May 26, 12:23 AM EDTMesoscale DiscussionSPCMercer, Van Wert2 hr
May 26, 2:37 AM EDTMesoscale DiscussionSPCAshland, Ashtabula, Carroll, Columbiana, Coshocton, Crawford and 27 more83 min
May 26, 3:09 PM EDTMesoscale DiscussionSPCAdams, Brown, Champaign, Clark, Clermont, Clinton and 19 more96 min
May 28, 6:39 PM EDTMesoscale DiscussionSPCDarke, Mercer66 min
May 29, 12:59 PM EDTMesoscale DiscussionSPCDefiance, Fulton, Henry, Lucas, Ottawa, Paulding and 4 more61 min
May 29, 4:17 PM EDTMesoscale DiscussionSPCDefiance, Fulton, Henry, Lucas, Ottawa, Paulding and 3 more88 min
May 29, 6:05 PM EDTMesoscale DiscussionSPCAshland, Ashtabula, Cuyahoga, Geauga, Lake, Lorain and 5 more25 min
May 29, 6:51 PM EDTMesoscale DiscussionSPCAllen, Fulton, Hancock, Henry, Lucas, Ottawa and 4 more54 min
May 29, 7:28 PM EDTMesoscale DiscussionSPCAshtabula, Cuyahoga, Erie, Geauga, Huron, Lake and 5 more62 min
May 31, 1:59 PM EDTMesoscale DiscussionSPCWilliams3 hr
May 31, 4:07 PM EDTMesoscale DiscussionSPCCarroll, Columbiana, Coshocton, Cuyahoga, Geauga, Holmes and 8 more113 min
May 31, 7:26 PM EDTMesoscale DiscussionSPCDefiance, Fulton, Paulding, Williams2 hr
Jun 4, 5:51 PM EDTMesoscale DiscussionSPCAshland, Athens, Belmont, Carroll, Columbiana, Coshocton and 37 more24 min
Jun 4, 8:55 PM EDTMesoscale DiscussionSPCAuglaize, Butler, Clark, Clinton, Darke, Greene and 8 more65 min
Jun 4, 8:58 PM EDTMesoscale DiscussionSPCAshland, Athens, Belmont, Carroll, Champaign, Clark and 38 more2 hr
Jun 5, 12:08 AM EDTMesoscale DiscussionSPCAdams, Athens, Belmont, Brown, Carroll, Clermont and 27 more67 min
Jun 7, 5:29 AM EDTMesoscale DiscussionSPCAshland, Ashtabula, Columbiana, Cuyahoga, Erie, Geauga and 11 more3 hr
Jun 7, 8:22 AM EDTMesoscale DiscussionSPCAshland, Ashtabula, Carroll, Columbiana, Coshocton, Cuyahoga and 15 more113 min
Jun 7, 10:32 AM EDTMesoscale DiscussionSPCAshland, Athens, Belmont, Carroll, Coshocton, Crawford and 25 more88 min
Jun 7, 2:56 PM EDTMesoscale DiscussionSPCAdams, Brown, Champaign, Clark, Clermont, Clinton and 15 more94 min
Jun 9, 3:29 AM EDTMesoscale DiscussionSPCAshtabula, Cuyahoga, Erie, Geauga, Henry, Huron and 10 more2 hr
Jun 9, 8:13 AM EDTMesoscale DiscussionSPCAshtabula, Cuyahoga, Geauga, Holmes, Lake, Mahoning and 6 more2 hr
Jun 9, 6:31 PM EDTMesoscale DiscussionSPCButler, Clermont, Hamilton89 min
Jun 10, 1:10 PM EDTMesoscale DiscussionSPCAdams, Brown, Butler, Clark, Clermont, Clinton and 13 more95 min
Jun 10, 4:48 PM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Brown, Butler, Champaign and 45 more87 min
Jun 10, 8:34 PM EDTMesoscale DiscussionSPCAdams, Ashland, Athens, Auglaize, Brown, Butler and 48 more56 min
Jun 11, 1:40 AM EDTMesoscale DiscussionSPCAdams, Athens, Belmont, Brown, Butler, Carroll and 45 more2 hr
Jun 16, 1:33 PM EDTMesoscale DiscussionSPCAshland, Athens, Champaign, Clark, Clinton, Coshocton and 40 more57 min
Jun 16, 6:01 PM EDTMesoscale DiscussionSPCMonroe, Washington89 min
Jun 17, 7:05 PM EDTMesoscale DiscussionSPCAshland, Athens, Belmont, Carroll, Coshocton, Crawford and 33 more85 min
Jun 20, 9:53 AM EDTMesoscale DiscussionSPCAdams, Brown, Butler, Clark, Clermont, Clinton and 8 more97 min
Jun 20, 12:46 PM EDTMesoscale DiscussionSPCAdams59 min
Jun 22, 11:46 AM EDTMesoscale DiscussionSPCDefiance, Fulton, Henry, Lucas, Paulding, Putnam and 3 more119 min
Jun 22, 4:35 PM EDTMesoscale DiscussionSPCAllen, Auglaize, Champaign, Darke, Defiance, Fulton and 12 more55 min
Jun 22, 4:43 PM EDTMesoscale DiscussionSPCButler, Clark, Clermont, Clinton, Greene, Hamilton and 3 more92 min
Jun 22, 6:36 PM EDTMesoscale DiscussionSPCAdams, Allen, Auglaize, Brown, Butler, Champaign and 37 more54 min
Jun 23, 12:33 PM EDTMesoscale DiscussionSPCAdams, Ashtabula, Athens, Belmont, Brown, Carroll and 36 more117 min
Jun 23, 4:04 PM EDTMesoscale DiscussionSPCAdams, Athens, Gallia, Hocking, Jackson, Lawrence and 5 more116 min
Jun 28, 1:19 PM EDTMesoscale DiscussionSPCColumbiana, Jefferson86 min
Jul 2, 2:06 PM EDTMesoscale DiscussionSPCDefiance, Fulton, Henry, Lucas, Paulding, Williams54 min
Jul 2, 7:17 PM EDTMesoscale DiscussionSPCDefiance, Fulton, Williams58 min
Jul 2, 9:01 PM EDTMesoscale DiscussionSPCAshtabula, Carroll, Columbiana, Cuyahoga, Geauga, Lake and 7 more59 min
Jul 3, 3:22 PM EDTMesoscale DiscussionSPCAthens, Belmont, Hocking, Jackson, Meigs, Monroe and 4 more53 min
Jul 4, 1:54 PM EDTMesoscale DiscussionSPCMonroe96 min
Jul 11, 8:10 AM EDTMesoscale DiscussionSPCDefiance, Fulton, Henry, Paulding, Williams95 min
Jul 11, 8:50 AM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Brown, Butler, Champaign and 51 more55 min
Jul 11, 10:55 AM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Carroll, Champaign, Columbiana and 38 more65 min
Jul 11, 12:34 PM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Champaign, Coshocton, Crawford and 42 more56 min
Jul 11, 1:42 PM EDTMesoscale DiscussionSPCAshland, Ashtabula, Athens, Auglaize, Belmont, Carroll and 59 more93 min
Jul 11, 3:43 PM EDTMesoscale DiscussionSPCAdams, Athens, Belmont, Brown, Butler, Carroll and 31 more92 min
Jul 11, 5:54 PM EDTMesoscale DiscussionSPCBrown, Clermont, Hamilton96 min
Jul 11, 6:16 PM EDTMesoscale DiscussionSPCDarke, Mercer, Van Wert59 min
Jul 11, 8:51 PM EDTMesoscale DiscussionSPCAthens, Belmont, Coshocton, Delaware, Fairfield, Franklin and 21 more54 min
Jul 18, 1:18 PM EDTMesoscale DiscussionSPCAshland, Carroll, Columbiana, Coshocton, Crawford, Cuyahoga and 27 more117 min
Jul 18, 6:14 PM EDTMesoscale DiscussionSPCAthens, Champaign, Clark, Crawford, Delaware, Fairfield and 27 more31 min
Jul 18, 8:02 PM EDTMesoscale DiscussionSPCAshland, Ashtabula, Carroll, Columbiana, Coshocton, Crawford and 25 more58 min
Jul 20, 6:26 PM EDTMesoscale DiscussionSPCAdams, Allen, Athens, Auglaize, Brown, Butler and 36 more94 min
Jul 22, 11:20 AM EDTMesoscale DiscussionSPCAllen, Auglaize, Champaign, Clark, Crawford, Darke and 33 more55 min
Jul 22, 12:50 PM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Champaign, Clark, Clinton and 43 more55 min
Jul 22, 3:17 PM EDTMesoscale DiscussionSPCBelmont, Carroll, Columbiana, Guernsey, Harrison, Jefferson and 4 more58 min
Jul 22, 4:32 PM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Champaign, Clark, Clinton and 41 more88 min
Jul 22, 5:19 PM EDTMesoscale DiscussionSPCBelmont, Carroll, Columbiana, Coshocton, Geauga, Guernsey and 11 more56 min
Jul 22, 5:59 PM EDTMesoscale DiscussionSPCGallia, Lawrence2 hr
Jul 22, 7:10 PM EDTMesoscale DiscussionSPCClark, Clinton, Coshocton, Delaware, Fairfield, Fayette and 14 more35 min
Jul 22, 8:13 PM EDTMesoscale DiscussionSPCBelmont, Carroll, Columbiana, Harrison, Jefferson, Mahoning and 1 more62 min
Jul 23, 3:18 PM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Champaign, Coshocton, Crawford and 24 more87 min
Jul 23, 7:06 PM EDTMesoscale DiscussionSPCCuyahoga, Defiance, Erie, Fulton, Geauga, Hancock and 12 more114 min
Jul 25, 11:12 AM EDTMesoscale DiscussionSPCGeauga, Mahoning, Portage, Trumbull63 min
Jul 25, 3:16 PM EDTMesoscale DiscussionSPCCarroll, Columbiana, Harrison, Jefferson59 min
Jul 28, 3:43 PM EDTMesoscale DiscussionSPCAshland, Belmont, Carroll, Columbiana, Coshocton, Crawford and 33 more62 min
Jul 28, 7:02 PM EDTMesoscale DiscussionSPCCarroll, Columbiana, Coshocton, Harrison, Holmes, Jefferson and 6 more58 min
Jul 29, 3:31 AM EDTMesoscale DiscussionSPCAshtabula, Fulton, Lake, Lucas, Ottawa, Williams89 min
Jul 29, 2:06 PM EDTMesoscale DiscussionSPCAshland, Belmont, Carroll, Champaign, Clark, Columbiana and 35 more84 min
Jul 29, 4:51 PM EDTMesoscale DiscussionSPCButler, Darke, Miami, Montgomery, Preble84 min
Aug 1, 3:47 AM EDTMesoscale DiscussionSPCAshtabula, Lake58 min
Aug 1, 8:01 AM EDTMesoscale DiscussionSPCAshtabula, Cuyahoga, Erie, Fulton, Geauga, Huron and 11 more89 min
Aug 1, 1:06 PM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Belmont, Carroll, Champaign and 48 more24 min
Aug 1, 3:39 PM EDTMesoscale DiscussionSPCAllen, Ashland, Ashtabula, Auglaize, Belmont, Carroll and 64 more66 min
Aug 2, 9:34 PM EDTMesoscale DiscussionSPCFulton, Williams86 min
Aug 3, 12:25 AM EDTMesoscale DiscussionSPCWilliams95 min
Aug 3, 4:28 AM EDTMesoscale DiscussionSPCAdams, Athens, Brown, Butler, Champaign, Clark and 44 more92 min
Aug 3, 8:21 AM EDTMesoscale DiscussionSPCAdams, Athens, Brown, Butler, Champaign, Clark and 44 more84 min
Aug 6, 6:48 PM EDTMesoscale DiscussionSPCAllen, Ashland, Crawford, Defiance, Erie, Fulton and 17 more117 min
Aug 7, 12:14 PM EDTMesoscale DiscussionSPCAllen, Auglaize, Butler, Champaign, Clark, Darke and 15 more2 hr
Aug 7, 4:01 PM EDTMesoscale DiscussionSPCAthens, Belmont, Butler, Champaign, Clark, Clinton and 30 more119 min
Aug 7, 7:36 PM EDTMesoscale DiscussionSPCGallia, Jackson, Meigs, Washington84 min
Aug 8, 6:00 PM EDTMesoscale DiscussionSPCBrown, Butler, Clark, Clermont, Clinton, Darke and 7 more2 hr
Aug 9, 6:35 PM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Champaign, Clark, Crawford and 29 more85 min
Aug 9, 8:31 PM EDTMesoscale DiscussionSPCAshland, Ashtabula, Butler, Carroll, Champaign, Clark and 44 more89 min
Aug 13, 4:29 PM EDTMesoscale DiscussionSPCDefiance, Fulton, Paulding, Williams91 min
Aug 13, 6:30 PM EDTMesoscale DiscussionSPCAdams, Brown, Clermont, Scioto90 min
Aug 13, 7:10 PM EDTMesoscale DiscussionSPCDefiance, Fulton, Henry, Lucas, Mercer, Paulding and 4 more95 min
Aug 13, 9:18 PM EDTMesoscale DiscussionSPCAllen, Auglaize, Butler, Champaign, Clark, Clinton and 28 more87 min
Aug 20, 12:04 PM EDTMesoscale DiscussionSPCDefiance, Erie, Fulton, Hancock, Henry, Lucas and 8 more116 min
Aug 20, 4:37 PM EDTMesoscale DiscussionSPCAshtabula, Lake83 min
Aug 21, 1:43 PM EDTMesoscale DiscussionSPCAdams, Athens, Belmont, Brown, Butler, Champaign and 38 more62 min
Aug 24, 4:46 PM EDTMesoscale DiscussionSPCDefiance, Fulton, Henry, Lucas, Ottawa, Paulding and 5 more89 min
Aug 24, 9:56 PM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Brown, Butler, Champaign and 40 more94 min
Aug 24, 11:48 PM EDTMesoscale DiscussionSPCAshland, Ashtabula, Athens, Auglaize, Belmont, Brown and 61 more87 min
Aug 25, 2:31 AM EDTMesoscale DiscussionSPCAdams, Athens, Belmont, Brown, Butler, Carroll and 42 more119 min
Sep 3, 6:02 PM EDTMesoscale DiscussionSPCFulton, Lucas, Williams58 min
Sep 3, 8:29 PM EDTMesoscale DiscussionSPCFulton, Williams61 min
Sep 13, 7:00 PM EDTMesoscale DiscussionSPCTrumbull60 min
Sep 25, 6:34 PM EDTMesoscale DiscussionSPCBelmont, Carroll, Columbiana, Geauga, Guernsey, Harrison and 12 more86 min
Sep 26, 1:45 AM EDTMesoscale DiscussionSPCAuglaize, Brown, Butler, Champaign, Clark, Clermont and 14 more3 hr
Sep 26, 2:16 PM EDTMesoscale DiscussionSPCAthens, Belmont, Carroll, Columbiana, Gallia, Geauga and 13 more59 min
Sep 29, 4:28 PM EDTMesoscale DiscussionSPCAllen, Auglaize, Brown, Butler, Champaign, Clark and 15 more92 min
Sep 29, 6:21 PM EDTMesoscale DiscussionSPCAdams, Ashland, Brown, Butler, Champaign, Clark and 40 more84 min
Nov 14, 12:24 PM ESTMesoscale DiscussionSPCAllen, Auglaize, Darke, Defiance, Hancock, Hardin and 8 more96 min
Nov 14, 2:57 PM ESTMesoscale DiscussionSPCAshland, Carroll, Champaign, Coshocton, Crawford, Delaware and 22 more63 min
Nov 14, 4:38 PM ESTMesoscale DiscussionSPCAllen, Ashland, Ashtabula, Auglaize, Carroll, Champaign and 39 more2 hr
Nov 14, 6:32 PM ESTMesoscale DiscussionSPCAdams, Allen, Auglaize, Brown, Butler, Champaign and 33 more88 min
Nov 14, 8:41 PM ESTMesoscale DiscussionSPCBelmont, Carroll, Columbiana, Coshocton, Fairfield, Franklin and 13 more2 hr
Nov 14, 10:00 PM ESTMesoscale DiscussionSPCAdams, Brown, Highland, Pike, Ross, Scioto60 min
Nov 29, 12:02 PM ESTMesoscale DiscussionSPCDefiance, Paulding, Williams4 hr
Nov 29, 3:12 PM ESTMesoscale DiscussionSPCWilliams4 hr
Nov 29, 8:55 PM ESTMesoscale DiscussionSPCWilliams3 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

48 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. May 23, 20118mesoscale discussions
  2. July 11, 20118mesoscale discussions
  3. April 4, 20117mesoscale discussions
  4. July 22, 20117mesoscale discussions
  5. April 27, 20115mesoscale discussions
  6. May 29, 20115mesoscale discussions
  7. February 28, 20114mesoscale discussions
  8. March 23, 20114mesoscale discussions
  9. April 20, 20114mesoscale discussions
  10. April 28, 20114mesoscale discussions
  11. May 22, 20114mesoscale discussions
  12. May 26, 20114mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20102012

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.