Alert archive / Illinois / Mesoscale Discussions

Mesoscale Discussions in Illinois, 2010

203 mesoscale discussions in 2010. 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 2010. Tap one for its archive.

Mesoscale Discussions
203
Busiest month
June62 mesoscale discussions
Busiest day
June 18, 20109 mesoscale discussions

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Jan 20, 3:58 AM CSTMesoscale DiscussionSPCCass, Fulton, Hancock, Henderson, Knox, McDonough and 9 more4 hr
Jan 20, 10:34 AM CSTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 21 more4 hr
Mar 10, 11:08 PM CSTMesoscale DiscussionSPCAlexander, Calhoun, Clinton, Jackson, Jersey, Madison and 7 more97 min
Mar 11, 1:21 AM CSTMesoscale DiscussionSPCAlexander, Bond, Clinton, Franklin, Jackson, Jefferson and 16 more54 min
Mar 11, 1:56 PM CSTMesoscale DiscussionSPCEdgar, Iroquois, Vermilion94 min
Mar 20, 11:36 PM CDTMesoscale DiscussionSPCAdams, Hancock, Knox, McDonough5 hr
Apr 2, 11:35 AM CDTMesoscale DiscussionSPCJo Daviess, Mercer, Rock Island85 min
Apr 4, 11:02 AM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Calhoun, Cass, DeWitt and 31 more88 min
Apr 4, 2:22 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Hancock, Pike, Schuyler and 1 more113 min
Apr 4, 6:23 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 12 more67 min
Apr 4, 8:25 PM CDTMesoscale DiscussionSPCCalhoun, Cass, Christian, DeWitt, Greene, Jersey and 10 more65 min
Apr 4, 11:16 PM CDTMesoscale DiscussionSPCCalhoun, Jersey, Macoupin, Madison, Monroe, Saint Clair59 min
Apr 5, 1:56 AM CDTMesoscale DiscussionSPCClinton, Franklin, Jackson, Monroe, Perry, Randolph and 3 more94 min
Apr 5, 11:11 AM CDTMesoscale DiscussionSPCAdams64 min
Apr 5, 12:28 PM CDTMesoscale DiscussionSPCAlexander, Calhoun, Clinton, Edwards, Franklin, Gallatin and 22 more62 min
Apr 5, 5:23 PM CDTMesoscale DiscussionSPCBureau, Carroll, DeKalb, Henry, Jo Daviess, Kendall and 10 more67 min
Apr 5, 5:47 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Douglas, Edgar, Moultrie and 1 more58 min
Apr 5, 9:37 PM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 6 more53 min
Apr 6, 4:05 AM CDTMesoscale DiscussionSPCJo Daviess85 min
Apr 6, 7:37 AM CDTMesoscale DiscussionSPCCook, DeKalb, DuPage, Kane, Lake, McHenry83 min
Apr 6, 4:55 PM CDTMesoscale DiscussionSPCBoone, Jo Daviess, Stephenson, Winnebago65 min
Apr 6, 8:46 PM CDTMesoscale DiscussionSPCBrown, Bureau, Carroll, Fulton, Hancock, Henderson and 14 more59 min
Apr 7, 12:54 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 38 more3 hr
Apr 7, 3:15 PM CDTMesoscale DiscussionSPCAlexander, Champaign, Clark, Clay, Coles, Crawford and 36 more2 hr
Apr 7, 5:43 PM CDTMesoscale DiscussionSPCAlexander, Clark, Clay, Coles, Crawford, Cumberland and 25 more62 min
Apr 23, 6:31 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more29 min
Apr 24, 7:35 AM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 12 more55 min
Apr 24, 11:08 AM CDTMesoscale DiscussionSPCMonroe67 min
Apr 24, 2:01 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Massac, Pope, Pulaski89 min
Apr 24, 2:52 PM CDTMesoscale DiscussionSPCBond, Clinton, Fayette, Jersey, Madison, Marion and 4 more53 min
Apr 24, 5:14 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 41 more61 min
Apr 24, 5:48 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 11 more57 min
Apr 30, 9:18 AM CDTMesoscale DiscussionSPCAdams, Hancock, Henderson, Mercer, Rock Island57 min
Apr 30, 12:41 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Grundy, Jo Daviess and 9 more64 min
Apr 30, 2:08 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Fulton, Greene and 13 more67 min
Apr 30, 2:41 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Henderson, Henry and 17 more64 min
Apr 30, 5:37 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 16 more53 min
Apr 30, 7:12 PM CDTMesoscale DiscussionSPCBond, Brown, Calhoun, Cass, Christian, Clinton and 29 more63 min
Apr 30, 7:32 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 16 more58 min
Apr 30, 8:36 PM CDTMesoscale DiscussionSPCAlexander, Bond, Christian, Clay, Clinton, Coles and 32 more54 min
Apr 30, 11:41 PM CDTMesoscale DiscussionSPCAlexander, Bond, Champaign, Christian, Clark, Clay and 39 more64 min
May 1, 9:45 PM CDTMesoscale DiscussionSPCAlexander, Bond, Clark, Clay, Clinton, Coles and 37 more30 min
May 2, 2:09 AM CDTMesoscale DiscussionSPCAlexander, Bond, Champaign, Clark, Clay, Clinton and 35 more2 hr
May 3, 12:54 PM CDTMesoscale DiscussionSPCBond, Brown, Calhoun, Cass, Champaign, Christian and 44 more96 min
May 3, 5:12 PM CDTMesoscale DiscussionSPCBond, Calhoun, Cass, Champaign, Christian, Clark and 54 more93 min
May 7, 2:31 AM CDTMesoscale DiscussionSPCAdams, Brown, Fulton, Hancock, Henderson, Knox and 5 more59 min
May 7, 5:07 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hamilton, Hardin, Johnson, Massac and 6 more113 min
May 12, 4:51 AM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Crawford, Edwards, Effingham and 11 more54 min
May 12, 8:00 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 11 more90 min
May 12, 11:24 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 10 more96 min
May 13, 4:23 AM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Greene, Logan and 10 more67 min
May 13, 6:34 AM CDTMesoscale DiscussionSPCCass, DeWitt, DuPage, Ford, Fulton, Grundy and 20 more26 min
May 13, 5:41 PM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Christian, Clay, Clinton and 33 more94 min
May 21, 10:26 AM CDTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Edgar and 9 more64 min
May 24, 11:51 AM CDTMesoscale DiscussionSPCAlexander, Franklin, Hardin, Jackson, Johnson, Massac and 5 more54 min
May 25, 12:59 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Stephenson, Whiteside91 min
Jun 1, 9:17 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Cass, Fulton, Hancock and 15 more118 min
Jun 1, 11:36 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Christian, DeWitt and 24 more54 min
Jun 2, 1:31 AM CDTMesoscale DiscussionSPCBond, Brown, Calhoun, Cass, Champaign, Christian and 58 more89 min
Jun 2, 4:33 AM CDTMesoscale DiscussionSPCClark, Clay, Crawford, Cumberland, Edgar, Edwards and 7 more87 min
Jun 2, 12:56 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more94 min
Jun 2, 5:55 PM CDTMesoscale DiscussionSPCBoone, DuPage, Jo Daviess, Kane, Lake, McHenry and 2 more65 min
Jun 4, 1:43 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Ford and 29 more2 hr
Jun 4, 4:54 PM CDTMesoscale DiscussionSPCCook, DuPage, Ford, Grundy, Iroquois, Kankakee and 9 more66 min
Jun 4, 7:36 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Christian, DeWitt, Fulton and 19 more54 min
Jun 4, 9:53 PM CDTMesoscale DiscussionSPCFord, Grundy, Iroquois, Kankakee, Livingston67 min
Jun 4, 10:27 PM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, McDonough, Pike, Schuyler33 min
Jun 5, 2:31 PM CDTMesoscale DiscussionSPCCarroll, Henderson, Henry, Jo Daviess, Knox, Lee and 6 more119 min
Jun 5, 6:29 PM CDTMesoscale DiscussionSPCBureau, Champaign, DeWitt, Douglas, Edgar, Ford and 17 more61 min
Jun 5, 9:20 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Calhoun, Cass, Champaign and 43 more115 min
Jun 5, 11:17 PM CDTMesoscale DiscussionSPCChampaign, Christian, Coles, DeWitt, Douglas, Edgar and 10 more118 min
Jun 11, 12:38 PM CDTMesoscale DiscussionSPCCass, Champaign, Christian, Clark, Coles, Crawford and 33 more2 hr
Jun 11, 5:01 PM CDTMesoscale DiscussionSPCJo Daviess, Stephenson89 min
Jun 12, 12:24 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 44 more96 min
Jun 12, 3:49 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 29 more86 min
Jun 13, 11:55 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 18 more65 min
Jun 13, 2:14 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 27 more61 min
Jun 13, 3:14 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Douglas, Edgar, Ford and 5 more61 min
Jun 13, 6:13 PM CDTMesoscale DiscussionSPCBond, Brown, Calhoun, Cass, Champaign, Christian and 34 more62 min
Jun 14, 1:45 PM CDTMesoscale DiscussionSPCAlexander, Bond, Champaign, Christian, Clark, Clay and 47 more60 min
Jun 15, 11:55 AM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 39 more95 min
Jun 15, 2:42 PM CDTMesoscale DiscussionSPCBond, Calhoun, Champaign, Christian, Clark, Clay and 39 more2 hr
Jun 15, 5:58 PM CDTMesoscale DiscussionSPCHardin, Massac62 min
Jun 17, 9:37 AM CDTMesoscale DiscussionSPCAlexander, Jackson, Johnson, Massac, Pope, Pulaski and 1 more113 min
Jun 17, 9:43 PM CDTMesoscale DiscussionSPCStephenson62 min
Jun 17, 10:57 PM CDTMesoscale DiscussionSPCRock Island93 min
Jun 17, 11:00 PM CDTMesoscale DiscussionSPCJo Daviess, Stephenson, Winnebago60 min
Jun 18, 2:33 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 22 more27 min
Jun 18, 10:41 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Fulton and 24 more2 hr
Jun 18, 12:14 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Fulton and 26 more61 min
Jun 18, 5:06 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, Cook, DeKalb and 32 more54 min
Jun 18, 5:45 PM CDTMesoscale DiscussionSPCMercer, Rock Island60 min
Jun 18, 6:56 PM CDTMesoscale DiscussionSPCChampaign, Edgar, Vermilion94 min
Jun 18, 7:38 PM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cass and 34 more97 min
Jun 18, 10:46 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 26 more89 min
Jun 19, 2:33 AM CDTMesoscale DiscussionSPCClay, Clinton, Edwards, Franklin, Gallatin, Hamilton and 19 more57 min
Jun 19, 1:07 PM CDTMesoscale DiscussionSPCCalhoun, Jersey53 min
Jun 19, 5:55 PM CDTMesoscale DiscussionSPCAlexander, Bond, Christian, Clay, Clinton, Cumberland and 28 more95 min
Jun 21, 7:39 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Greene, Hancock and 6 more96 min
Jun 21, 12:28 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Fulton, Greene and 14 more62 min
Jun 21, 4:10 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 27 more35 min
Jun 21, 5:35 PM CDTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Edgar and 13 more55 min
Jun 21, 7:00 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Cass, Champaign, Christian and 37 more60 min
Jun 22, 4:03 AM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, Henderson, McDonough, Mercer and 2 more57 min
Jun 22, 10:03 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 28 more57 min
Jun 22, 1:38 PM CDTMesoscale DiscussionSPCBond, Christian, Clark, Clay, Coles, Crawford and 13 more67 min
Jun 22, 11:47 PM CDTMesoscale DiscussionSPCJo Daviess88 min
Jun 23, 8:31 AM CDTMesoscale DiscussionSPCGrundy, Kankakee, LaSalle, Livingston, Marshall, Putnam and 3 more59 min
Jun 23, 1:01 PM CDTMesoscale DiscussionSPCBureau, Carroll, Cook, DeKalb, DuPage, Ford and 23 more59 min
Jun 23, 5:56 PM CDTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Ford, Fulton and 23 more94 min
Jun 23, 6:29 PM CDTMesoscale DiscussionSPCAdams, Hancock2 hr
Jun 23, 11:13 PM CDTMesoscale DiscussionSPCChristian, Coles, Douglas, Edgar, Macon, Moultrie and 1 more62 min
Jun 25, 11:16 PM CDTMesoscale DiscussionSPCJo Daviess89 min
Jun 26, 1:52 AM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cook and 35 more83 min
Jun 27, 1:16 AM CDTMesoscale DiscussionSPCJo Daviess, Stephenson, Winnebago89 min
Jun 27, 5:58 AM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cook and 30 more92 min
Jun 27, 10:02 AM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Douglas, Edgar, Ford and 5 more118 min
Jun 27, 7:26 PM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Crawford, Cumberland and 20 more94 min
Jul 11, 3:19 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Jackson, Johnson, Massac, Pope and 3 more56 min
Jul 11, 6:04 PM CDTMesoscale DiscussionSPCAlexander, Massac, Pulaski, Union56 min
Jul 12, 7:56 PM CDTMesoscale DiscussionSPCMonroe64 min
Jul 14, 5:57 PM CDTMesoscale DiscussionSPCBoone, McHenry93 min
Jul 14, 9:25 PM CDTMesoscale DiscussionSPCMcHenry95 min
Jul 15, 11:32 AM CDTMesoscale DiscussionSPCChampaign, Coles, Cumberland, Douglas, Edgar, Effingham and 6 more58 min
Jul 15, 2:47 PM CDTMesoscale DiscussionSPCChampaign, Christian, Coles, DeWitt, Douglas, Edgar and 11 more118 min
Jul 15, 4:48 PM CDTMesoscale DiscussionSPCAlexander, Bond, Clay, Clinton, Effingham, Fayette and 14 more87 min
Jul 15, 5:56 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Cumberland, Douglas, Edgar and 5 more94 min
Jul 17, 11:59 PM CDTMesoscale DiscussionSPCJo Daviess, Stephenson91 min
Jul 18, 4:58 AM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, Pike62 min
Jul 18, 5:58 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 36 more32 min
Jul 18, 7:19 AM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, Henderson, McDonough, Pike and 1 more26 min
Jul 18, 9:21 AM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 8 more84 min
Jul 19, 10:05 AM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Greene, Jackson, Jersey and 11 more85 min
Jul 19, 2:21 PM CDTMesoscale DiscussionSPCCrawford, Edwards, Lawrence, Richland, Wabash, Wayne and 1 more54 min
Jul 19, 5:24 PM CDTMesoscale DiscussionSPCJackson96 min
Jul 19, 7:21 PM CDTMesoscale DiscussionSPCFulton, Hancock, Henderson, Henry, Knox, Logan and 11 more84 min
Jul 19, 11:02 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Coles and 29 more88 min
Jul 20, 7:33 AM CDTMesoscale DiscussionSPCMonroe, Randolph27 min
Jul 20, 10:59 AM CDTMesoscale DiscussionSPCBond, Clinton, Madison, Monroe, Perry, Randolph and 2 more61 min
Jul 21, 12:34 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 26 more116 min
Jul 22, 8:25 PM CDTMesoscale DiscussionSPCJo Daviess95 min
Jul 22, 11:00 PM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 6 more90 min
Jul 23, 1:23 AM CDTMesoscale DiscussionSPCBoone, Jo Daviess, McHenry, Stephenson, Winnebago52 min
Jul 23, 2:30 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 21 more90 min
Jul 23, 11:31 PM CDTMesoscale DiscussionSPCBoone, Cook, Jo Daviess, Kane, Lake, McHenry and 2 more2 hr
Jul 24, 1:21 PM CDTMesoscale DiscussionSPCCass, Champaign, Christian, Coles, DeWitt, Douglas and 30 more54 min
Jul 24, 3:37 PM CDTMesoscale DiscussionSPCBrown, Bureau, Cass, Champaign, Cook, DeWitt and 33 more83 min
Jul 24, 8:03 PM CDTMesoscale DiscussionSPCCalhoun, Cass, Greene, Jersey, Macoupin, Madison and 5 more57 min
Jul 28, 1:25 PM CDTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Ford, Grundy and 18 more95 min
Jul 28, 6:01 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, DeWitt, Ford and 16 more59 min
Jul 30, 5:01 PM CDTMesoscale DiscussionSPCAlexander, Jackson, Monroe, Pulaski, Randolph, Saint Clair and 1 more89 min
Jul 30, 6:28 PM CDTMesoscale DiscussionSPCMonroe, Randolph62 min
Jul 31, 1:33 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Massac, Pope, Pulaski27 min
Aug 3, 12:04 AM CDTMesoscale DiscussionSPCRock Island3 hr
Aug 3, 4:55 AM CDTMesoscale DiscussionSPCDuPage, Ford, Grundy, Iroquois, Kankakee, Kendall and 5 more95 min
Aug 4, 1:05 AM CDTMesoscale DiscussionSPCBureau, Fulton, Grundy, Hancock, Henderson, Henry and 17 more85 min
Aug 4, 3:42 AM CDTMesoscale DiscussionSPCBureau, Grundy, Henderson, Henry, Kankakee, Kendall and 14 more63 min
Aug 4, 6:45 AM CDTMesoscale DiscussionSPCCook, DuPage, Iroquois, Kankakee, Will60 min
Aug 4, 2:27 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Champaign, Christian and 30 more33 min
Aug 4, 7:55 PM CDTMesoscale DiscussionSPCClark, Crawford, Edgar, Jasper65 min
Aug 5, 6:20 AM CDTMesoscale DiscussionSPCEdwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more85 min
Aug 8, 9:40 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess95 min
Aug 8, 11:19 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Rock Island, Whiteside86 min
Aug 9, 2:20 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Henderson, Henry and 15 more100 min
Aug 9, 4:46 AM CDTMesoscale DiscussionSPCHenderson, Henry, Mercer, Rock Island, Warren3 hr
Aug 9, 11:15 PM CDTMesoscale DiscussionSPCChampaign, DeWitt, Ford, Fulton, Knox, Logan and 5 more3 hr
Aug 12, 12:51 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more54 min
Aug 13, 1:54 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Hancock, Henderson and 14 more66 min
Aug 13, 5:27 PM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cass and 31 more63 min
Aug 13, 9:34 PM CDTMesoscale DiscussionSPCCalhoun, Jersey56 min
Aug 20, 5:20 PM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cass and 43 more85 min
Aug 20, 7:46 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Knox, LaSalle and 7 more59 min
Sep 2, 3:46 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Calhoun, Cass, Christian and 28 more89 min
Sep 2, 4:25 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 42 more65 min
Sep 2, 7:12 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 50 more2 hr
Sep 2, 8:47 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 30 more58 min
Sep 12, 6:08 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Lee, Ogle, Stephenson67 min
Sep 18, 5:11 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 19 more2 hr
Sep 19, 3:24 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Greene, Jersey, Macoupin and 3 more66 min
Sep 19, 6:14 AM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Christian, Greene, Macoupin and 6 more61 min
Sep 21, 1:02 PM CDTMesoscale DiscussionSPCBureau, Carroll, DeKalb, Henderson, Henry, Jo Daviess and 10 more88 min
Sep 21, 3:40 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 29 more95 min
Sep 21, 5:59 PM CDTMesoscale DiscussionSPCAdams91 min
Sep 21, 7:31 PM CDTMesoscale DiscussionSPCAdams, Cook, DuPage, Ford, Fulton, Grundy and 15 more59 min
Sep 21, 7:52 PM CDTMesoscale DiscussionSPCAdams53 min
Oct 24, 3:38 PM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Champaign, Christian, Clark and 46 more2 hr
Oct 25, 9:36 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Bureau, Calhoun, Carroll and 38 more24 min
Oct 26, 2:21 AM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Calhoun, Carroll and 54 more114 min
Oct 26, 3:38 AM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 13 more2 hr
Oct 26, 6:00 AM CDTMesoscale DiscussionSPCAlexander, Boone, Bureau, Carroll, Champaign, Clark and 60 more2 hr
Nov 22, 10:50 AM CSTMesoscale DiscussionSPCAdams, Brown, Bureau, Fulton, Hancock, Henderson and 14 more85 min
Nov 22, 2:10 PM CSTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cass and 38 more95 min
Nov 22, 7:31 PM CSTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 21 more89 min
Nov 22, 8:18 PM CSTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 8 more27 min
Nov 22, 11:44 PM CSTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 10 more2 hr
Nov 24, 11:35 AM CSTMesoscale DiscussionSPCCook, DeKalb, DuPage, Grundy, Kane, Kankakee and 3 more5 hr
Dec 3, 5:50 PM CSTMesoscale DiscussionSPCJo Daviess5 hr
Dec 15, 6:18 PM CSTMesoscale DiscussionSPCClay, Clinton, Crawford, Edwards, Fayette, Franklin and 18 more4 hr
Dec 31, 12:44 AM CSTMesoscale DiscussionSPCCalhoun61 min
Dec 31, 4:05 AM CSTMesoscale DiscussionSPCBond, Calhoun, Greene, Jersey, Macoupin, Madison and 3 more115 min
Dec 31, 5:45 AM CSTMesoscale DiscussionSPCCalhoun2 hr
Dec 31, 11:04 AM CSTMesoscale DiscussionSPCAlexander, Clinton, Edwards, Franklin, Hamilton, Jackson and 14 more56 min
Dec 31, 2:12 PM CSTMesoscale DiscussionSPCAlexander, Champaign, Clark, Clay, Coles, Crawford and 30 more93 min

By county

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

62 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. June 18, 20109mesoscale discussions
  2. April 5, 20107mesoscale discussions
  3. April 24, 20106mesoscale discussions
  4. June 2, 20106mesoscale discussions
  5. April 30, 20105mesoscale discussions
  6. May 13, 20105mesoscale discussions
  7. June 5, 20105mesoscale discussions
  8. June 19, 20105mesoscale discussions
  9. June 23, 20105mesoscale discussions
  10. July 15, 20105mesoscale discussions
  11. July 18, 20105mesoscale discussions
  12. December 31, 20105mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20092011

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.