Alert archive / Illinois / Mesoscale Discussions

Mesoscale Discussions in Illinois, 2011

247 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
247
Busiest month
June61 mesoscale discussions
Busiest day
May 25, 201111 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 17, 6:35 AM CSTMesoscale DiscussionSPCBureau, Henderson, Henry, Knox, Mercer, Rock Island and 3 more4 hr
Jan 31, 11:52 AM CSTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 29 more4 hr
Jan 31, 2:45 PM CSTMesoscale DiscussionSPCClark, Crawford, Edgar, Vermilion5 hr
Feb 1, 6:54 AM CSTMesoscale DiscussionSPCBond, Clinton, Fayette, Jersey, Madison, Marion and 5 more5 hr
Feb 1, 10:36 AM CSTMesoscale DiscussionSPCAdams, Brown, Bureau, Calhoun, Cass, Fulton and 24 more6 hr
Feb 1, 11:42 AM CSTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 27 more5 hr
Feb 1, 3:36 PM CSTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Calhoun, Carroll and 49 more6 hr
Feb 2, 2:33 AM CSTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Kane, Kendall and 4 more4 hr
Feb 20, 4:35 AM CSTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Grundy and 14 more6 hr
Feb 24, 5:20 PM CSTMesoscale DiscussionSPCAdams, Brown, Bureau, Cass, Champaign, Christian and 36 more6 hr
Feb 24, 9:41 PM CSTMesoscale DiscussionSPCChampaign, Ford, Iroquois, Vermilion6 hr
Feb 27, 4:57 PM CSTMesoscale DiscussionSPCAlexander, Franklin, Hardin, Jackson, Jefferson, Johnson and 11 more2 hr
Feb 27, 5:10 PM CSTMesoscale DiscussionSPCAdams, Pike35 min
Feb 27, 5:50 PM CSTMesoscale DiscussionSPCBureau, Carroll, DeKalb, Henry, Lee, Mercer and 3 more6 hr
Feb 27, 8:25 PM CSTMesoscale DiscussionSPCAlexander, Bond, Christian, Clark, Clay, Clinton and 39 more65 min
Feb 27, 8:49 PM CSTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 10 more6 hr
Feb 27, 10:41 PM CSTMesoscale DiscussionSPCBond, Clinton, Franklin, Jackson, Jefferson, Jersey and 9 more94 min
Feb 28, 1:05 AM CSTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Massac, Pope, Pulaski25 min
Mar 4, 3:22 PM CSTMesoscale DiscussionSPCCalhoun, Cass, Greene, Jersey, Macoupin, Menard and 4 more83 min
Mar 4, 6:22 PM CSTMesoscale DiscussionSPCClinton, Fayette, Franklin, Jackson, Jefferson, Marion and 5 more53 min
Mar 22, 11:21 PM CDTMesoscale DiscussionSPCHancock, Henderson, Warren84 min
Mar 23, 3:20 PM CDTMesoscale DiscussionSPCIroquois, Vermilion85 min
Apr 3, 4:49 PM CDTMesoscale DiscussionSPCCarroll, Henderson, Henry, Jo Daviess, Mercer, Rock Island and 2 more56 min
Apr 3, 7:44 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Fulton, Hancock, Henderson and 16 more61 min
Apr 3, 10:23 PM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 10 more67 min
Apr 3, 10:50 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, McDonough and 4 more85 min
Apr 4, 1:29 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 31 more91 min
Apr 4, 1:53 AM CDTMesoscale DiscussionSPCCook, DuPage, Grundy, Kane, Kendall, Lake and 2 more97 min
Apr 4, 4:20 AM CDTMesoscale DiscussionSPCClark, Clay, Crawford, Effingham, Jasper, Lawrence and 2 more25 min
Apr 4, 6:53 AM CDTMesoscale DiscussionSPCHardin, Lawrence, Wabash2 hr
Apr 9, 4:12 AM CDTMesoscale DiscussionSPCBond, Calhoun, Cass, Christian, Clark, Clay and 31 more93 min
Apr 9, 6:41 AM CDTMesoscale DiscussionSPCEdwards, Gallatin, Hamilton, Hardin, Johnson, Lawrence and 10 more2 hr
Apr 10, 1:30 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Stephenson2 hr
Apr 10, 5:03 PM CDTMesoscale DiscussionSPCAdams, Hancock, Henderson, Henry, Knox, McDonough and 4 more57 min
Apr 10, 11:03 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Coles, Cook, Cumberland and 18 more87 min
Apr 11, 12:48 AM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Coles, Crawford and 10 more87 min
Apr 15, 12:29 PM CDTMesoscale DiscussionSPCAdams, Alexander, Bond, Brown, Calhoun, Cass and 30 more61 min
Apr 15, 3:32 PM CDTMesoscale DiscussionSPCAdams, Alexander, Bond, Brown, Calhoun, Cass and 21 more58 min
Apr 15, 5:57 PM CDTMesoscale DiscussionSPCAlexander, Bond, Brown, Cass, Champaign, Christian and 57 more2 hr
Apr 15, 8:15 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Crawford, Cumberland, DeWitt and 7 more60 min
Apr 18, 11:41 PM CDTMesoscale DiscussionSPCCalhoun, Jersey94 min
Apr 19, 2:53 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 21 more67 min
Apr 19, 5:52 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 34 more83 min
Apr 19, 8:29 AM CDTMesoscale DiscussionSPCChristian, Clark, Coles, Crawford, Cumberland, Douglas and 8 more61 min
Apr 19, 12:40 PM CDTMesoscale DiscussionSPCJersey, Madison, Monroe, Saint Clair95 min
Apr 19, 5:47 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 25 more88 min
Apr 19, 6:24 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Jackson, Johnson, Pulaski, Saline and 2 more66 min
Apr 19, 8:07 PM CDTMesoscale DiscussionSPCAlexander, Bond, Champaign, Clark, Clay, Clinton and 38 more83 min
Apr 22, 10:09 AM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Clinton, Franklin, Greene and 14 more66 min
Apr 22, 1:14 PM CDTMesoscale DiscussionSPCCrawford, Edwards, Jasper, Lawrence, Richland, Wabash61 min
Apr 22, 5:21 PM CDTMesoscale DiscussionSPCCalhoun, Greene, Jersey, Macoupin114 min
Apr 22, 5:27 PM CDTMesoscale DiscussionSPCClinton, Edwards, Franklin, Gallatin, Hamilton, Hardin and 18 more33 min
Apr 22, 7:31 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 22 more59 min
Apr 22, 9:20 PM CDTMesoscale DiscussionSPCAlexander, Clay, Clinton, Edwards, Franklin, Gallatin and 23 more55 min
Apr 23, 3:41 AM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more94 min
Apr 23, 4:22 AM CDTMesoscale DiscussionSPCHardin, Pope23 min
Apr 23, 1:04 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 2 more86 min
Apr 23, 5:09 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more2 hr
Apr 23, 8:09 PM CDTMesoscale DiscussionSPCAlexander, Johnson, Pulaski, Union, Williamson2 hr
Apr 24, 3:01 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Massac, Pope, Pulaski89 min
Apr 25, 4:34 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more56 min
Apr 25, 7:34 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 7 more116 min
Apr 25, 11:05 PM CDTMesoscale DiscussionSPCGallatin, Hardin, Massac, Pope, Saline, White115 min
Apr 26, 12:26 PM CDTMesoscale DiscussionSPCChampaign, Clark, Douglas, Edgar, Ford, Iroquois and 1 more94 min
Apr 26, 2:41 PM CDTMesoscale DiscussionSPCMassac94 min
Apr 26, 4:38 PM CDTMesoscale DiscussionSPCClark, Crawford, Edwards, Gallatin, Hamilton, Jasper and 5 more37 min
Apr 26, 6:17 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more118 min
Apr 26, 8:35 PM CDTMesoscale DiscussionSPCCrawford, Edwards, Gallatin, Lawrence, Wabash, White55 min
Apr 26, 9:13 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 5 more62 min
Apr 27, 3:06 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 10 more54 min
Apr 27, 5:27 PM CDTMesoscale DiscussionSPCClark, Crawford, Edwards, Gallatin, Hamilton, Hardin and 7 more63 min
Apr 28, 12:38 PM CDTMesoscale DiscussionSPCAdams, Alexander, Bond, Brown, Calhoun, Christian and 46 more97 min
Apr 30, 7:49 PM CDTMesoscale DiscussionSPCAlexander, Johnson, Massac, Pope, Pulaski, Union56 min
May 7, 2:32 PM CDTMesoscale DiscussionSPCBureau, Champaign, DeWitt, Douglas, Edgar, Ford and 16 more118 min
May 7, 7:15 PM CDTMesoscale DiscussionSPCClark, Crawford, Edgar, Jasper, Lawrence90 min
May 11, 12:55 PM CDTMesoscale DiscussionSPCBoone, Carroll, DeKalb, DuPage, Jo Daviess, Kane and 7 more65 min
May 11, 2:18 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 30 more57 min
May 11, 3:38 PM CDTMesoscale DiscussionSPCBoone, Brown, Bureau, Carroll, Cass, Christian and 40 more2 hr
May 12, 2:51 PM CDTMesoscale DiscussionSPCHardin, Massac, Pope114 min
May 13, 4:40 PM CDTMesoscale DiscussionSPCBond, Brown, Calhoun, Cass, Christian, Clinton and 40 more95 min
May 22, 4:41 AM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cass and 37 more2 hr
May 22, 10:53 AM CDTMesoscale DiscussionSPCAdams, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more2 hr
May 22, 1:49 PM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Grundy, Kane and 10 more56 min
May 22, 2:59 PM CDTMesoscale DiscussionSPCJo Daviess2 hr
May 22, 4:16 PM CDTMesoscale DiscussionSPCChampaign, Douglas, Edgar, Ford, Iroquois, Kankakee and 2 more119 min
May 22, 5:47 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 23 more88 min
May 22, 7:52 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Greene, Jersey, Macoupin and 6 more53 min
May 22, 9:35 PM CDTMesoscale DiscussionSPCDeKalb, DuPage, Grundy, Iroquois, Kane, Kankakee and 6 more55 min
May 22, 10:24 PM CDTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Edgar and 9 more66 min
May 23, 7:25 AM CDTMesoscale DiscussionSPCEdgar, Vermilion65 min
May 23, 12:37 PM CDTMesoscale DiscussionSPCBond, Christian, Clark, Clay, Clinton, Coles and 34 more83 min
May 23, 2:52 PM CDTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Edgar and 8 more53 min
May 23, 3:58 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more92 min
May 23, 4:24 PM CDTMesoscale DiscussionSPCMassac96 min
May 24, 1:11 PM CDTMesoscale DiscussionSPCBureau, Ford, Grundy, Henry, Iroquois, Kankakee and 12 more94 min
May 24, 4:55 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Greene, Jersey, Macoupin and 5 more65 min
May 25, 12:48 AM CDTMesoscale DiscussionSPCAdams, Alexander, Bond, Brown, Calhoun, Cass and 23 more57 min
May 25, 4:58 AM CDTMesoscale DiscussionSPCBond, Brown, Calhoun, Cass, Champaign, Christian and 45 more92 min
May 25, 7:31 AM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more59 min
May 25, 7:48 AM CDTMesoscale DiscussionSPCChampaign, Clark, Clay, Clinton, Coles, Crawford and 18 more87 min
May 25, 8:33 AM CDTMesoscale DiscussionSPCChampaign, DeWitt, Douglas, Edgar, Ford, Iroquois and 3 more87 min
May 25, 10:18 AM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Crawford, Cumberland and 12 more57 min
May 25, 11:02 AM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 13 more28 min
May 25, 2:32 PM CDTMesoscale DiscussionSPCCalhoun, Greene, Jersey, Macoupin, Pike, Scott58 min
May 25, 3:10 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 6 more95 min
May 25, 5:48 PM CDTMesoscale DiscussionSPCBureau, Champaign, DeKalb, DeWitt, Douglas, Ford and 19 more117 min
May 25, 6:25 PM CDTMesoscale DiscussionSPCAlexander, Clay, Clinton, Edwards, Franklin, Gallatin and 20 more2 hr
May 25, 7:40 PM CDTMesoscale DiscussionSPCClark, Crawford, Edgar, Edwards, Gallatin, Hardin and 6 more2 hr
May 28, 12:15 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 32 more90 min
May 28, 3:42 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Crawford, Cumberland and 15 more93 min
May 28, 5:39 PM CDTMesoscale DiscussionSPCBond, Calhoun, Cass, Champaign, Christian, Clark and 28 more66 min
May 29, 8:39 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 26 more66 min
May 29, 11:59 AM CDTMesoscale DiscussionSPCCook, DeKalb, DuPage, Ford, Grundy, Iroquois and 9 more61 min
May 31, 12:59 PM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Calhoun, Cass and 49 more3 hr
May 31, 6:26 PM CDTMesoscale DiscussionSPCChampaign, Coles, DeWitt, Douglas, Edgar, Ford and 8 more2 hr
Jun 2, 2:57 PM CDTMesoscale DiscussionSPCMonroe2 hr
Jun 2, 6:20 PM CDTMesoscale DiscussionSPCCalhoun, Jersey55 min
Jun 4, 1:27 PM CDTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Grundy, Iroquois and 8 more63 min
Jun 4, 4:47 PM CDTMesoscale DiscussionSPCDeWitt, Fulton, Hancock, Henderson, Knox, Logan and 10 more28 min
Jun 4, 7:55 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Crawford, Cumberland and 13 more65 min
Jun 5, 2:52 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Bureau, Calhoun, Cass and 36 more2 hr
Jun 5, 7:27 AM CDTMesoscale DiscussionSPCClay, Crawford, Cumberland, Edwards, Franklin, Gallatin and 12 more2 hr
Jun 6, 1:08 AM CDTMesoscale DiscussionSPCJo Daviess2 hr
Jun 6, 6:15 AM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Kane, Kendall and 4 more90 min
Jun 8, 11:08 AM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Grundy, Kane and 5 more97 min
Jun 8, 3:36 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Mercer, Rock Island, Stephenson84 min
Jun 8, 8:43 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 19 more92 min
Jun 8, 11:45 PM CDTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Grundy, Kane and 6 more90 min
Jun 9, 1:44 AM CDTMesoscale DiscussionSPCBureau, Carroll, DeKalb, Henderson, Henry, Jo Daviess and 12 more2 hr
Jun 9, 5:46 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cass, Champaign, Cook and 34 more59 min
Jun 9, 4:29 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Christian, Fulton, Greene and 12 more61 min
Jun 9, 5:31 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 9 more89 min
Jun 10, 12:10 PM CDTMesoscale DiscussionSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 11 more95 min
Jun 10, 3:48 PM CDTMesoscale DiscussionSPCClark, Clay, Crawford, Cumberland, Edwards, Effingham and 6 more87 min
Jun 10, 5:55 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, DeWitt and 20 more65 min
Jun 10, 7:34 PM CDTMesoscale DiscussionSPCClay, Crawford, Edwards, Effingham, Hamilton, Jasper and 7 more56 min
Jun 10, 7:47 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Greene, Jersey, McDonough and 3 more58 min
Jun 10, 10:56 PM CDTMesoscale DiscussionSPCBond, Calhoun, Champaign, Christian, Clark, Clay and 26 more94 min
Jun 11, 12:40 AM CDTMesoscale DiscussionSPCClark, Clay, Crawford, Cumberland, Edwards, Effingham and 5 more2 hr
Jun 13, 6:52 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Greene, Jersey, Macoupin and 5 more83 min
Jun 13, 9:06 AM CDTMesoscale DiscussionSPCAlexander, Pulaski, Union54 min
Jun 13, 10:04 AM CDTMesoscale DiscussionSPCAdams, Calhoun, Greene, Jersey, Monroe, Morgan and 2 more86 min
Jun 13, 9:23 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 8 more97 min
Jun 13, 11:57 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Fulton, Greene and 15 more93 min
Jun 14, 3:21 AM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, McDonough, Schuyler, Scott3 hr
Jun 14, 2:56 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Greene, Hancock, Jersey and 2 more94 min
Jun 15, 1:55 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Christian, DeWitt and 22 more3 hr
Jun 15, 4:24 AM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Champaign, Christian, Clark and 45 more96 min
Jun 15, 2:13 PM CDTMesoscale DiscussionSPCAlexander, Clay, Clinton, Cumberland, DeWitt, Edwards and 27 more2 hr
Jun 17, 12:10 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Edwards, Effingham, Fayette and 12 more65 min
Jun 17, 1:34 PM CDTMesoscale DiscussionSPCClay, Crawford, Edwards, Effingham, Franklin, Hamilton and 8 more26 min
Jun 17, 3:39 PM CDTMesoscale DiscussionSPCHardin66 min
Jun 18, 5:39 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Clay, Clinton and 29 more66 min
Jun 18, 7:41 PM CDTMesoscale DiscussionSPCMonroe94 min
Jun 19, 2:14 AM CDTMesoscale DiscussionSPCAlexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 20 more61 min
Jun 19, 4:39 AM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 11 more66 min
Jun 19, 5:46 AM CDTMesoscale DiscussionSPCCrawford, Edwards, Hardin, Jasper, Lawrence, Richland and 1 more59 min
Jun 19, 4:30 PM CDTMesoscale DiscussionSPCMassac, Pulaski30 min
Jun 20, 4:08 AM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Cass, Champaign, Christian and 43 more67 min
Jun 20, 1:04 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Crawford, Cumberland and 14 more56 min
Jun 21, 11:45 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DeWitt and 32 more3 hr
Jun 21, 12:56 PM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Christian, Clay, Clinton and 40 more64 min
Jun 21, 3:31 PM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Cass, Champaign, Christian and 46 more89 min
Jun 21, 4:56 PM CDTMesoscale DiscussionSPCBond, Brown, Bureau, Cass, Champaign, Christian and 68 more94 min
Jun 21, 7:20 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Fayette, Franklin, Hamilton and 7 more85 min
Jun 25, 3:51 AM CDTMesoscale DiscussionSPCCalhoun, Jersey, Madison, Monroe, Randolph, Saint Clair84 min
Jun 25, 11:17 AM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Christian, Clark, Clay and 43 more118 min
Jun 25, 2:59 PM CDTMesoscale DiscussionSPCAlexander, Clinton, Franklin, Gallatin, Hamilton, Hardin and 16 more91 min
Jun 25, 10:22 PM CDTMesoscale DiscussionSPCGallatin, Hardin, Pope, Saline, Wabash, White and 1 more53 min
Jun 26, 1:21 AM CDTMesoscale DiscussionSPCAlexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 20 more84 min
Jun 26, 4:14 AM CDTMesoscale DiscussionSPCMassac91 min
Jun 26, 6:22 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Greene, Hancock and 9 more83 min
Jun 27, 12:58 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 48 more92 min
Jun 27, 3:14 AM CDTMesoscale DiscussionSPCAlexander, Bond, Champaign, Clark, Clay, Clinton and 39 more91 min
Jun 27, 5:38 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 35 more97 min
Jun 27, 11:30 AM CDTMesoscale DiscussionSPCHardin, Massac, Pope90 min
Jun 30, 8:07 PM CDTMesoscale DiscussionSPCCook, DuPage, Lake, Will23 min
Jun 30, 10:15 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 7 more60 min
Jul 2, 1:06 PM CDTMesoscale DiscussionSPCBureau, Champaign, Cook, DeKalb, DeWitt, DuPage and 26 more54 min
Jul 2, 6:17 PM CDTMesoscale DiscussionSPCCalhoun, Cass, Champaign, Christian, DeWitt, Douglas and 16 more58 min
Jul 3, 12:26 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clay, Clinton, Effingham, Fayette and 11 more64 min
Jul 3, 3:35 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clark, Clay, Clinton, Crawford and 25 more55 min
Jul 3, 5:19 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clay, Clinton, Edwards, Fayette and 24 more26 min
Jul 6, 1:38 PM CDTMesoscale DiscussionSPCMonroe97 min
Jul 7, 7:58 PM CDTMesoscale DiscussionSPCAlexander, Jackson, Perry, Randolph, Union92 min
Jul 10, 2:45 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, DeKalb, DeWitt and 37 more2 hr
Jul 11, 5:07 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 17 more113 min
Jul 11, 7:10 AM CDTMesoscale DiscussionSPCBoone, Bureau, Cass, Cook, DeKalb, DuPage and 27 more95 min
Jul 11, 7:50 AM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Cook, DeWitt, Douglas and 14 more55 min
Jul 11, 5:16 PM CDTMesoscale DiscussionSPCCass, Champaign, DeWitt, Douglas, Ford, Fulton and 19 more59 min
Jul 12, 1:00 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 53 more2 hr
Jul 12, 3:48 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 38 more87 min
Jul 12, 6:43 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Christian, Clark and 41 more62 min
Jul 12, 7:04 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more86 min
Jul 18, 6:30 AM CDTMesoscale DiscussionSPCBoone, DeKalb, Kane, Lake, McHenry, Ogle and 2 more2 hr
Jul 19, 1:04 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 12 more86 min
Jul 21, 12:49 PM CDTMesoscale DiscussionSPCDeKalb, DuPage, Kane, Lake, McHenry56 min
Jul 21, 7:09 PM CDTMesoscale DiscussionSPCHenderson, Knox, Mercer, Rock Island, Warren96 min
Jul 22, 7:38 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 17 more97 min
Jul 23, 2:18 PM CDTMesoscale DiscussionSPCChampaign, DeWitt, Ford, Iroquois, Kankakee, Livingston and 6 more87 min
Jul 24, 6:15 AM CDTMesoscale DiscussionSPCDeKalb, DuPage, Kane, Kendall, Lee, Ogle and 1 more3 hr
Jul 24, 11:21 AM CDTMesoscale DiscussionSPCChristian, Fulton, Logan, Macon, Mason, Menard and 1 more114 min
Jul 24, 12:42 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Edwards, Hamilton, Jefferson and 8 more2 hr
Jul 24, 12:42 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Edwards, Hamilton, Jefferson and 8 more2 hr
Jul 24, 4:55 PM CDTMesoscale DiscussionSPCAlexander, Massac, Pulaski2 hr
Jul 26, 1:11 PM CDTMesoscale DiscussionSPCBond, Cass, Champaign, Christian, Clark, Clay and 44 more94 min
Jul 27, 6:54 PM CDTMesoscale DiscussionSPCBoone, Carroll, DeKalb, DuPage, Jo Daviess, Kane and 7 more66 min
Jul 27, 9:43 PM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 9 more62 min
Jul 28, 12:36 AM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 10 more84 min
Jul 28, 5:40 PM CDTMesoscale DiscussionSPCBureau, Hancock, Henderson, Henry, Knox, Lee and 9 more95 min
Jul 28, 11:51 PM CDTMesoscale DiscussionSPCBoone, Bureau, Cook, DeKalb, DuPage, Kane and 9 more84 min
Jul 29, 3:51 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Cumberland, Douglas, Edgar and 2 more84 min
Jul 30, 12:35 PM CDTMesoscale DiscussionSPCMonroe, Randolph85 min
Aug 2, 6:19 AM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Kane, Kendall and 4 more86 min
Aug 2, 12:57 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 20 more93 min
Aug 2, 8:34 PM CDTMesoscale DiscussionSPCCook, DeKalb, DuPage, Grundy, Kane, Kankakee and 4 more86 min
Aug 2, 11:25 PM CDTMesoscale DiscussionSPCIroquois95 min
Aug 3, 12:26 PM CDTMesoscale DiscussionSPCPope64 min
Aug 4, 6:04 AM CDTMesoscale DiscussionSPCAlexander, Jackson, Johnson, Monroe, Perry, Pulaski and 3 more86 min
Aug 4, 10:21 AM CDTMesoscale DiscussionSPCAlexander84 min
Aug 6, 11:06 PM CDTMesoscale DiscussionSPCAdams, Brown, Fulton, Hancock, Henderson, McDonough and 4 more114 min
Aug 7, 11:14 AM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 8 more2 hr
Aug 7, 5:20 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Franklin, Jackson, Jefferson and 10 more115 min
Aug 7, 8:27 PM CDTMesoscale DiscussionSPCAlexander, Jackson, Johnson, Massac, Pulaski, Randolph and 1 more2 hr
Aug 7, 10:54 PM CDTMesoscale DiscussionSPCAlexander, Massac, Pulaski96 min
Aug 8, 1:06 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Grundy, Henderson and 19 more84 min
Aug 8, 5:23 PM CDTMesoscale DiscussionSPCBureau, Cass, Champaign, Christian, DeWitt, Ford and 21 more67 min
Aug 8, 7:27 PM CDTMesoscale DiscussionSPCChampaign, DeWitt, Ford, Iroquois, Kankakee, Livingston and 7 more93 min
Aug 9, 12:17 PM CDTMesoscale DiscussionSPCChampaign, Christian, Coles, DeWitt, Douglas, Edgar and 14 more58 min
Aug 13, 11:45 AM CDTMesoscale DiscussionSPCBureau, Champaign, Cook, DeKalb, DuPage, Ford and 16 more60 min
Aug 13, 3:29 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 21 more91 min
Aug 13, 6:10 PM CDTMesoscale DiscussionSPCClark, Coles, Cumberland, Douglas, Edgar, Shelby and 1 more95 min
Aug 17, 3:44 PM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Calhoun, Carroll and 47 more91 min
Aug 18, 2:40 PM CDTMesoscale DiscussionSPCAlexander, Clay, Crawford, Edwards, Franklin, Gallatin and 18 more2 hr
Aug 20, 11:04 AM CDTMesoscale DiscussionSPCKankakee116 min
Aug 24, 3:46 PM CDTMesoscale DiscussionSPCCass, Champaign, Christian, DeWitt, Douglas, Edgar and 18 more89 min
Aug 24, 8:56 PM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Coles, Crawford and 18 more94 min
Sep 2, 2:41 PM CDTMesoscale DiscussionSPCBoone, Carroll, Henry, Jo Daviess, Lee, Ogle and 4 more94 min
Sep 2, 11:56 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Ogle, Stephenson, Whiteside, Winnebago94 min
Sep 3, 12:24 PM CDTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Ford, Grundy and 13 more66 min
Sep 3, 5:02 PM CDTMesoscale DiscussionSPCBureau, Cook, DuPage, Ford, Fulton, Grundy and 23 more58 min
Oct 25, 6:56 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Cass, Fulton, Hancock and 22 more3 hr
Nov 14, 4:12 AM CSTMesoscale DiscussionSPCClark, Coles, Cumberland, Edgar, Shelby63 min
Nov 14, 11:24 AM CSTMesoscale DiscussionSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 14 more96 min
Nov 14, 12:27 PM CSTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more2 hr
Nov 14, 3:38 PM CSTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Edgar and 3 more2 hr
Nov 14, 5:32 PM CSTMesoscale DiscussionSPCAlexander, Clark, Clay, Crawford, Cumberland, Edgar and 23 more88 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. May 25, 201111mesoscale discussions
  2. May 23, 20118mesoscale discussions
  3. April 4, 20117mesoscale discussions
  4. April 19, 20117mesoscale discussions
  5. April 23, 20116mesoscale discussions
  6. April 26, 20116mesoscale discussions
  7. May 22, 20116mesoscale discussions
  8. June 9, 20116mesoscale discussions
  9. June 19, 20115mesoscale discussions
  10. July 24, 20115mesoscale discussions
  11. November 14, 20115mesoscale discussions
  12. February 1, 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.