Alert archive / Illinois / Mesoscale Discussions

Mesoscale Discussions in Illinois, 2008

261 mesoscale discussions in 2008. 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 2008. Tap one for its archive.

Mesoscale Discussions
261
Busiest month
June64 mesoscale discussions
Busiest day
January 8, 20089 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
Dec 31, 6:25 PM CSTMesoscale DiscussionSPCIroquois, Kankakee3 hr
Jan 7, 7:26 AM CSTMesoscale DiscussionSPCCarroll, Jo Daviess, Rock Island, Stephenson, Winnebago2 hr
Jan 7, 1:47 PM CSTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Calhoun, Carroll and 43 more58 min
Jan 7, 4:34 PM CSTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Christian, DeWitt and 15 more86 min
Jan 7, 6:11 PM CSTMesoscale DiscussionSPCAdams, Brown, Pike, Schuyler94 min
Jan 7, 6:57 PM CSTMesoscale DiscussionSPCCalhoun, Greene, Jersey, Madison, Monroe, Pike and 2 more93 min
Jan 7, 7:03 PM CSTMesoscale DiscussionSPCChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 4 more117 min
Jan 7, 10:04 PM CSTMesoscale DiscussionSPCCalhoun86 min
Jan 7, 10:12 PM CSTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Cumberland, DeWitt and 12 more2 hr
Jan 8, 11:27 AM CSTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more2 hr
Jan 8, 11:40 AM CSTMesoscale DiscussionSPCJo Daviess5 hr
Jan 8, 12:22 PM CSTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 10 more83 min
Jan 8, 1:11 PM CSTMesoscale DiscussionSPCGallatin, Hardin, Massac, Pope2 hr
Jan 10, 7:52 AM CSTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 15 more113 min
Jan 29, 10:21 AM CSTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 8 more54 min
Jan 29, 10:54 AM CSTMesoscale DiscussionSPCAlexander66 min
Jan 29, 12:19 PM CSTMesoscale DiscussionSPCBoone, Carroll, Henderson, Henry, Jo Daviess, Lee and 8 more4 hr
Jan 29, 1:24 PM CSTMesoscale DiscussionSPCChampaign, Christian, Coles, DeWitt, Douglas, Edgar and 11 more66 min
Jan 29, 3:56 PM CSTMesoscale DiscussionSPCAlexander, Clay, Clinton, Crawford, Cumberland, Edwards and 24 more64 min
Jan 29, 6:15 PM CSTMesoscale DiscussionSPCCook4 hr
Jan 31, 6:23 PM CSTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Champaign, Christian, Clark and 54 more3 hr
Feb 1, 1:43 AM CSTMesoscale DiscussionSPCBond, Champaign, Christian, Cook, DeWitt, Douglas and 23 more5 hr
Feb 3, 12:10 PM CSTMesoscale DiscussionSPCAdams, Brown, Cass, Christian, DeWitt, Fulton and 19 more4 hr
Feb 3, 4:42 PM CSTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cass, Champaign, Cook and 36 more4 hr
Feb 4, 6:20 PM CSTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Clinton and 13 more85 min
Feb 4, 9:21 PM CSTMesoscale DiscussionSPCAlexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 18 more84 min
Feb 4, 9:44 PM CSTMesoscale DiscussionSPCCalhoun, Champaign, Christian, DeWitt, Douglas, Ford and 13 more91 min
Feb 5, 6:45 AM CSTMesoscale DiscussionSPCMassac2 hr
Feb 5, 9:47 AM CSTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more88 min
Feb 5, 4:46 PM CSTMesoscale DiscussionSPCBond, Christian, Clark, Clay, Clinton, Coles and 17 more119 min
Feb 5, 8:07 PM CSTMesoscale DiscussionSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more83 min
Feb 6, 6:07 AM CSTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 31 more6 hr
Feb 6, 11:32 AM CSTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Kane, Kendall and 5 more6 hr
Feb 11, 1:10 PM CSTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 12 more6 hr
Feb 11, 6:58 PM CSTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more5 hr
Feb 11, 11:51 PM CSTMesoscale DiscussionSPCAlexander, Clay, Crawford, Edwards, Franklin, Gallatin and 20 more5 hr
Feb 12, 6:54 AM CSTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 2 more4 hr
Feb 16, 11:34 PM CSTMesoscale DiscussionSPCJo Daviess, Stephenson, Winnebago5 hr
Feb 17, 12:13 PM CSTMesoscale DiscussionSPCJo Daviess, Stephenson4 hr
Feb 17, 12:52 PM CSTMesoscale DiscussionSPCChampaign, Ford, Iroquois, Kankakee, Vermilion83 min
Feb 21, 12:22 AM CSTMesoscale DiscussionSPCAlexander, Jackson, Johnson, Pulaski, Randolph, Union and 1 more6 hr
Feb 21, 6:15 AM CSTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 16 more6 hr
Feb 21, 12:04 PM CSTMesoscale DiscussionSPCAlexander, Clay, Clinton, Edwards, Franklin, Gallatin and 22 more4 hr
Feb 21, 8:58 PM CSTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more4 hr
Feb 25, 9:30 AM CSTMesoscale DiscussionSPCMercer, Rock Island6 hr
Mar 2, 5:26 PM CSTMesoscale DiscussionSPCCarroll, Henderson, Henry, Jo Daviess, Mercer, Ogle and 5 more2 hr
Mar 3, 2:04 PM CSTMesoscale DiscussionSPCBond, Champaign, Christian, Coles, DeWitt, Douglas and 13 more5 hr
Mar 3, 7:31 PM CSTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Coles, Crawford and 18 more5 hr
Mar 4, 1:28 PM CSTMesoscale DiscussionSPCDeWitt, Ford, Iroquois, Macon, Piatt4 hr
Mar 18, 2:23 AM CDTMesoscale DiscussionSPCAlexander, Clay, Edwards, Franklin, Gallatin, Hamilton and 15 more2 hr
Mar 18, 11:54 AM CDTMesoscale DiscussionSPCEdwards, Franklin, Gallatin, Hamilton, Jackson, Jefferson and 12 more3 hr
Mar 18, 6:06 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski3 hr
Mar 21, 4:37 AM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 9 more4 hr
Mar 26, 1:48 PM CDTMesoscale DiscussionSPCMonroe, Randolph, Saint Clair2 hr
Mar 27, 4:39 AM CDTMesoscale DiscussionSPCAlexander, Clinton, Edwards, Franklin, Hamilton, Jackson and 16 more96 min
Mar 27, 8:54 AM CDTMesoscale DiscussionSPCHardin, Massac, Pope2 hr
Mar 27, 12:29 PM CDTMesoscale DiscussionSPCMonroe2 hr
Mar 27, 7:32 PM CDTMesoscale DiscussionSPCRandolph88 min
Mar 27, 9:31 PM CDTMesoscale DiscussionSPCBond, Clinton, Effingham, Fayette, Madison, Marion and 5 more89 min
Mar 27, 9:55 PM CDTMesoscale DiscussionSPCAlexander, Johnson, Massac, Pope, Pulaski65 min
Mar 31, 8:53 AM CDTMesoscale DiscussionSPCBureau, Cass, DeKalb, DeWitt, DuPage, Ford and 24 more2 hr
Mar 31, 1:09 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 11 more2 hr
Mar 31, 1:10 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Greene, Jersey, Macoupin and 6 more35 min
Mar 31, 8:12 PM CDTMesoscale DiscussionSPCAlexander, Jackson, Pulaski, Union63 min
Apr 3, 1:39 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hamilton, Hardin, Jackson, Johnson and 7 more66 min
Apr 8, 5:03 PM CDTMesoscale DiscussionSPCCalhoun, Greene, Jersey, Madison, Monroe, Randolph and 1 more57 min
Apr 8, 7:58 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Coles, Cumberland, DeWitt and 15 more92 min
Apr 8, 11:45 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Coles, Cumberland, DeWitt and 15 more90 min
Apr 10, 9:27 AM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Jackson, Johnson, Massac and 6 more2 hr
Apr 10, 10:51 AM CDTMesoscale DiscussionSPCAlexander, Johnson, Massac, Pope, Pulaski, Union84 min
Apr 10, 11:16 AM CDTMesoscale DiscussionSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 25 more2 hr
Apr 10, 1:41 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more2 hr
Apr 10, 6:44 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Hancock, Henderson, McDonough and 5 more61 min
Apr 10, 7:48 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more57 min
Apr 10, 9:54 PM CDTMesoscale DiscussionSPCAlexander, Clay, Edwards, Franklin, Gallatin, Hamilton and 15 more66 min
Apr 18, 3:07 PM CDTMesoscale DiscussionSPCAlexander, Johnson, Massac, Pulaski, Union113 min
Apr 22, 9:41 AM CDTMesoscale DiscussionSPCAlexander, Bond, Clay, Clinton, Effingham, Fayette and 10 more94 min
Apr 25, 4:22 AM CDTMesoscale DiscussionSPCHenderson, Mercer, Rock Island23 min
Apr 25, 9:10 AM CDTMesoscale DiscussionSPCBoone, Carroll, Jo Daviess, Lee, Ogle, Rock Island and 3 more65 min
Apr 25, 12:21 PM CDTMesoscale DiscussionSPCAdams, Brown, Carroll, Fulton, Hancock, Henderson and 10 more54 min
Apr 25, 3:28 PM CDTMesoscale DiscussionSPCBureau, Carroll, Henry, Jo Daviess, Knox, Lee and 7 more62 min
Apr 25, 5:18 PM CDTMesoscale DiscussionSPCBureau, Carroll, Henry, Jo Daviess, Knox, Lee and 7 more57 min
Apr 25, 6:01 PM CDTMesoscale DiscussionSPCBureau, Carroll, Henry, Jo Daviess, Knox, Lee and 7 more59 min
May 2, 9:48 AM CDTMesoscale DiscussionSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 13 more117 min
May 2, 11:05 AM CDTMesoscale DiscussionSPCJo Daviess115 min
May 2, 12:12 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 2 more2 hr
May 2, 3:05 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, DeKalb, DeWitt and 30 more115 min
May 2, 7:50 PM CDTMesoscale DiscussionSPCClark, Cook, Edgar, Vermilion85 min
May 10, 4:05 AM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more115 min
May 10, 8:50 PM CDTMesoscale DiscussionSPCAlexander, Jackson, Monroe, Pulaski, Randolph, Saint Clair and 1 more85 min
May 11, 2:01 AM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 35 more89 min
May 13, 6:07 AM CDTMesoscale DiscussionSPCAdams, Alexander, Bond, Brown, Calhoun, Cass and 32 more83 min
May 13, 5:45 PM CDTMesoscale DiscussionSPCBureau, Champaign, Christian, Coles, Cumberland, DeKalb and 30 more60 min
May 13, 7:11 PM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Cass, Champaign, Christian and 72 more2 hr
May 13, 10:38 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Fulton, Greene and 8 more97 min
May 25, 12:53 PM CDTMesoscale DiscussionSPCCalhoun, Greene, Jersey, Madison, Monroe, Pike and 2 more67 min
May 25, 6:39 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Greene and 11 more66 min
May 25, 9:23 PM CDTMesoscale DiscussionSPCBoone, Carroll, DeKalb, Henry, Jo Daviess, Kane and 8 more67 min
May 25, 10:18 PM CDTMesoscale DiscussionSPCAlexander, Bond, Clark, Clay, Clinton, Crawford and 30 more117 min
May 25, 10:59 PM CDTMesoscale DiscussionSPCBrown, Cass, Champaign, Cook, DeWitt, DuPage and 28 more61 min
May 25, 11:28 PM CDTMesoscale DiscussionSPCBureau, Carroll, Hancock, Henderson, Henry, Lee and 5 more62 min
May 26, 3:13 AM CDTMesoscale DiscussionSPCFord, Iroquois62 min
May 27, 1:07 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Crawford, Edwards, Effingham and 8 more113 min
May 30, 2:17 AM CDTMesoscale DiscussionSPCHancock, Henderson, McDonough, Mercer, Rock Island, Warren88 min
May 30, 6:00 AM CDTMesoscale DiscussionSPCCarroll, Hancock, Henderson, Henry, Knox, Mercer and 3 more2 hr
May 30, 10:13 AM CDTMesoscale DiscussionSPCCook, DuPage, Grundy, Kendall, LaSalle, Will62 min
May 30, 1:14 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Champaign, Christian and 24 more2 hr
May 30, 4:29 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 19 more61 min
May 30, 5:18 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 37 more87 min
May 30, 9:16 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 31 more29 min
May 30, 11:35 PM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Coles, Crawford and 23 more55 min
May 31, 1:38 AM CDTMesoscale DiscussionSPCChampaign, DeWitt, Ford, Iroquois, Livingston, Logan and 8 more2 hr
May 31, 10:27 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Gallatin, Hamilton, Hardin, Johnson and 9 more63 min
Jun 2, 8:02 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Fulton, Greene and 14 more118 min
Jun 3, 3:08 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 37 more97 min
Jun 3, 7:17 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 41 more118 min
Jun 3, 10:05 AM CDTMesoscale DiscussionSPCBond, Cass, Champaign, Christian, Clark, Clay and 45 more85 min
Jun 3, 12:13 PM CDTMesoscale DiscussionSPCCrawford2 hr
Jun 3, 5:38 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Greene, Jersey and 5 more2 hr
Jun 3, 9:26 PM CDTMesoscale DiscussionSPCBrown, Calhoun, Cass, Champaign, Christian, Coles and 24 more94 min
Jun 3, 11:34 PM CDTMesoscale DiscussionSPCCalhoun, Cass, Champaign, Christian, Clark, Coles and 33 more86 min
Jun 4, 1:29 AM CDTMesoscale DiscussionSPCAlexander, Clay, Clinton, Edwards, Franklin, Gallatin and 22 more91 min
Jun 4, 6:09 AM CDTMesoscale DiscussionSPCAlexander, Crawford, Gallatin, Hardin, Johnson, Lawrence and 7 more2 hr
Jun 4, 1:39 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 7 more96 min
Jun 4, 5:51 PM CDTMesoscale DiscussionSPCBureau, Carroll, Champaign, DeKalb, Ford, Grundy and 23 more84 min
Jun 5, 1:38 AM CDTMesoscale DiscussionSPCBoone, Cook, DuPage, Jo Daviess, Kane, Lake and 3 more3 hr
Jun 5, 4:11 AM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Lee, Mercer, Ogle, Rock Island and 3 more94 min
Jun 5, 6:46 AM CDTMesoscale DiscussionSPCBoone, Carroll, Henry, Jo Daviess, McHenry, Mercer and 5 more119 min
Jun 5, 9:30 AM CDTMesoscale DiscussionSPCCook, DuPage, Grundy, Kendall, LaSalle, Will90 min
Jun 6, 4:19 AM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, Pike26 min
Jun 6, 5:14 AM CDTMesoscale DiscussionSPCBond, Boone, Bureau, Calhoun, Cass, Christian and 39 more61 min
Jun 6, 10:50 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Bureau, Calhoun, Cass and 53 more85 min
Jun 6, 2:27 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Effingham, Fayette, Madison and 6 more93 min
Jun 7, 2:31 AM CDTMesoscale DiscussionSPCClark, Coles, Crawford, Cumberland, Douglas, Edgar and 4 more119 min
Jun 7, 10:35 AM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Rock Island, Stephenson, Whiteside85 min
Jun 7, 1:50 PM CDTMesoscale DiscussionSPCCarroll, Henderson, Henry, Jo Daviess, Mercer, Ogle and 5 more55 min
Jun 7, 6:34 PM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Jo Daviess, Kane and 5 more56 min
Jun 8, 6:39 AM CDTMesoscale DiscussionSPCMercer, Rock Island66 min
Jun 8, 8:43 AM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Kane and 9 more62 min
Jun 8, 2:04 PM CDTMesoscale DiscussionSPCGrundy, Kankakee, Kendall, LaSalle, Will116 min
Jun 8, 4:32 PM CDTMesoscale DiscussionSPCMercer, Rock Island28 min
Jun 8, 7:52 PM CDTMesoscale DiscussionSPCBoone, Bureau, Cass, DeKalb, DeWitt, DuPage and 20 more53 min
Jun 8, 10:01 PM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cass and 40 more59 min
Jun 9, 12:18 PM CDTMesoscale DiscussionSPCClark, Clay, Crawford, Cumberland, Edgar, Edwards and 14 more87 min
Jun 9, 3:02 PM CDTMesoscale DiscussionSPCClark, Clay, Crawford, Cumberland, Edgar, Effingham and 4 more118 min
Jun 9, 7:35 PM CDTMesoscale DiscussionSPCAlexander, Clay, Crawford, Edwards, Effingham, Franklin and 19 more55 min
Jun 12, 12:37 PM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, DeKalb and 29 more113 min
Jun 12, 3:45 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Fulton and 22 more90 min
Jun 12, 3:52 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Henderson, Henry and 12 more113 min
Jun 12, 6:49 PM CDTMesoscale DiscussionSPCAdams, Boone, Bureau, Carroll, Cook, DeKalb and 26 more86 min
Jun 12, 11:15 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 27 more90 min
Jun 13, 1:36 AM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Cass, Cook and 23 more54 min
Jun 13, 10:44 AM CDTMesoscale DiscussionSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 28 more2 hr
Jun 13, 4:58 PM CDTMesoscale DiscussionSPCAlexander, Massac, Pulaski62 min
Jun 13, 8:11 PM CDTMesoscale DiscussionSPCAlexander, Massac, Pulaski94 min
Jun 14, 12:35 PM CDTMesoscale DiscussionSPCJo Daviess115 min
Jun 14, 5:17 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 24 more88 min
Jun 15, 3:35 AM CDTMesoscale DiscussionSPCCarroll, Jo Daviess55 min
Jun 15, 11:17 AM CDTMesoscale DiscussionSPCAdams, Hancock, Pike88 min
Jun 15, 1:08 PM CDTMesoscale DiscussionSPCBoone, Carroll, DeKalb, DuPage, Jo Daviess, Kane and 5 more97 min
Jun 15, 5:00 PM CDTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Douglas and 8 more90 min
Jun 20, 1:54 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 9 more96 min
Jun 21, 9:32 AM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Cumberland, Douglas, Edgar and 5 more88 min
Jun 21, 3:01 PM CDTMesoscale DiscussionSPCBond, Clinton, Franklin, Jackson, Jefferson, Madison and 6 more89 min
Jun 22, 4:59 PM CDTMesoscale DiscussionSPCCass, Christian, Clark, Coles, Crawford, Cumberland and 10 more61 min
Jun 24, 10:21 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Schuyler54 min
Jun 25, 1:11 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 15 more94 min
Jun 25, 10:18 PM CDTMesoscale DiscussionSPCCarroll, Fulton, Hancock, Henderson, Henry, Knox and 6 more87 min
Jun 26, 1:23 AM CDTMesoscale DiscussionSPCBond, Calhoun, Cass, Champaign, Christian, Clark and 38 more97 min
Jun 27, 11:55 AM CDTMesoscale DiscussionSPCBond, Brown, Bureau, Calhoun, Cass, Champaign and 59 more3 hr
Jun 27, 3:04 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 48 more86 min
Jun 27, 8:56 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Henry and 12 more94 min
Jun 27, 11:26 PM CDTMesoscale DiscussionSPCMonroe94 min
Jun 28, 10:44 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 17 more2 hr
Jun 28, 3:23 PM CDTMesoscale DiscussionSPCCook, DuPage, Kane, Kendall, Lake, McHenry and 1 more2 hr
Jun 28, 11:40 PM CDTMesoscale DiscussionSPCClark, Clay, Clinton, Crawford, Cumberland, Edwards and 11 more95 min
Jul 2, 9:42 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 21 more2 hr
Jul 2, 1:55 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 19 more95 min
Jul 2, 7:03 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 18 more57 min
Jul 7, 7:30 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess30 min
Jul 7, 8:32 PM CDTMesoscale DiscussionSPCBoone, Carroll, DeKalb, Jo Daviess, Kane, Lee and 5 more88 min
Jul 7, 10:21 PM CDTMesoscale DiscussionSPCBoone, Bureau, DeKalb, DuPage, Kane, Kendall and 4 more84 min
Jul 8, 1:15 AM CDTMesoscale DiscussionSPCFord, Fulton, Hancock, Henderson, Knox, Livingston and 10 more3 hr
Jul 8, 1:27 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 35 more93 min
Jul 8, 4:22 PM CDTMesoscale DiscussionSPCBond, Calhoun, Champaign, Christian, Clark, Clay and 25 more53 min
Jul 8, 6:02 PM CDTMesoscale DiscussionSPCBond, Calhoun, Champaign, Christian, Clark, Clay and 25 more58 min
Jul 10, 9:36 AM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Stephenson84 min
Jul 10, 12:55 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 14 more95 min
Jul 10, 5:52 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 17 more83 min
Jul 12, 1:52 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cass, Christian, DeKalb and 33 more53 min
Jul 12, 3:37 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Coles and 16 more83 min
Jul 19, 6:56 PM CDTMesoscale DiscussionSPCBoone, Carroll, Henderson, Henry, Jo Daviess, Mercer and 6 more2 hr
Jul 19, 11:24 PM CDTMesoscale DiscussionSPCBoone, Bureau, Cook, DeKalb, DeWitt, DuPage and 29 more96 min
Jul 20, 12:43 PM CDTMesoscale DiscussionSPCCass, Champaign, Christian, Clark, Coles, Cumberland and 12 more92 min
Jul 20, 10:17 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 18 more2 hr
Jul 21, 3:10 AM CDTMesoscale DiscussionSPCHancock, Henderson, McDonough, Mercer, Rock Island, Warren95 min
Jul 21, 1:48 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 6 more87 min
Jul 21, 7:16 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, McDonough and 6 more89 min
Jul 21, 8:00 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clay, Clinton, Effingham and 12 more90 min
Jul 21, 10:38 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 32 more97 min
Jul 22, 4:47 AM CDTMesoscale DiscussionSPCAlexander, Hardin, Jackson, Johnson, Massac, Pope and 5 more88 min
Jul 24, 11:32 PM CDTMesoscale DiscussionSPCCalhoun, Pike88 min
Jul 25, 6:10 PM CDTMesoscale DiscussionSPCAlexander, Pulaski95 min
Jul 27, 4:47 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Greene, Hancock and 10 more88 min
Jul 27, 8:20 PM CDTMesoscale DiscussionSPCBond, Calhoun, Greene, Jersey, Macoupin, Madison and 4 more85 min
Jul 28, 1:23 AM CDTMesoscale DiscussionSPCAdams, Alexander, Edwards, Franklin, Gallatin, Hamilton and 17 more97 min
Jul 29, 3:11 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 6 more94 min
Jul 29, 7:05 PM CDTMesoscale DiscussionSPCChampaign, DeKalb, Douglas, DuPage, Ford, Grundy and 10 more85 min
Jul 30, 4:44 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Jackson, Johnson, Monroe, Perry and 5 more91 min
Jul 30, 7:33 PM CDTMesoscale DiscussionSPCAlexander, Clay, Clinton, Edwards, Franklin, Gallatin and 22 more87 min
Jul 31, 1:51 PM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more84 min
Jul 31, 3:51 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, Cook, DeKalb and 25 more84 min
Jul 31, 6:30 PM CDTMesoscale DiscussionSPCHenderson, Mercer, Rock Island90 min
Aug 1, 1:52 PM CDTMesoscale DiscussionSPCChampaign, DeWitt, Douglas, Edgar, Ford, Iroquois and 7 more113 min
Aug 4, 3:51 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 16 more84 min
Aug 4, 6:45 PM CDTMesoscale DiscussionSPCBoone, Bureau, Cook, DeKalb, DuPage, Grundy and 17 more90 min
Aug 4, 8:50 PM CDTMesoscale DiscussionSPCGrundy, Kankakee, Will85 min
Aug 5, 1:53 AM CDTMesoscale DiscussionSPCBureau, Carroll, Henry, Mercer, Rock Island, Whiteside97 min
Aug 5, 7:07 AM CDTMesoscale DiscussionSPCBureau, Champaign, Ford, Grundy, Henry, Iroquois and 13 more53 min
Aug 5, 12:56 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Edwards, Fayette, Franklin and 17 more94 min
Aug 5, 7:56 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 37 more2 hr
Aug 6, 5:41 PM CDTMesoscale DiscussionSPCClay, Crawford, Edwards, Franklin, Gallatin, Hamilton and 13 more64 min
Aug 14, 3:29 PM CDTMesoscale DiscussionSPCAlexander, Jackson, Monroe, Randolph, Saint Clair, Union91 min
Aug 28, 2:48 PM CDTMesoscale DiscussionSPCAdams, Hancock, Henderson, Mercer, Rock Island, Warren87 min
Aug 28, 6:11 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Fulton and 17 more2 hr
Aug 28, 10:19 PM CDTMesoscale DiscussionSPCBond, Clinton, Jersey, Macoupin, Madison, Monroe and 5 more86 min
Sep 4, 12:25 PM CDTMesoscale DiscussionSPCClay, Crawford, Edwards, Franklin, Gallatin, Hamilton and 13 more2 hr
Sep 4, 6:03 PM CDTMesoscale DiscussionSPCLawrence, Wabash87 min
Sep 8, 1:22 PM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Coles, Crawford and 27 more83 min
Sep 8, 9:49 PM CDTMesoscale DiscussionSPCClark, Clay, Clinton, Crawford, Cumberland, Edgar and 23 more86 min
Sep 12, 5:39 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 22 more96 min
Sep 12, 11:44 PM CDTMesoscale DiscussionSPCFord, Grundy, Iroquois, Kankakee, Knox, LaSalle and 9 more91 min
Sep 13, 1:29 AM CDTMesoscale DiscussionSPCFord, Grundy, Iroquois, Kankakee, Kendall, LaSalle and 2 more91 min
Sep 13, 3:28 AM CDTMesoscale DiscussionSPCCook, DeKalb, DuPage, Ford, Grundy, Iroquois and 11 more92 min
Sep 13, 5:27 PM CDTMesoscale DiscussionSPCBrown, Calhoun, Cass, Christian, DeWitt, Greene and 13 more2 hr
Sep 29, 3:50 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Cumberland, Edwards, Effingham and 22 more55 min
Nov 30, 5:34 PM CSTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Grundy, Kane and 5 more6 hr
Dec 1, 12:37 AM CSTMesoscale DiscussionSPCCook, DuPage, Lake4 hr
Dec 8, 7:12 PM CSTMesoscale DiscussionSPCBoone, Jo Daviess, McHenry, Stephenson, Winnebago2 hr
Dec 8, 11:43 PM CSTMesoscale DiscussionSPCCarroll, Jo Daviess, Rock Island, Stephenson2 hr
Dec 9, 6:58 PM CSTMesoscale DiscussionSPCMonroe3 hr
Dec 14, 5:47 PM CSTMesoscale DiscussionSPCAdams, Brown, Bureau, Calhoun, Carroll, Cass and 30 more4 hr
Dec 14, 11:47 PM CSTMesoscale DiscussionSPCAdams, Bond, Brown, Bureau, Calhoun, Cass and 51 more4 hr
Dec 15, 11:43 PM CSTMesoscale DiscussionSPCMassac4 hr
Dec 16, 5:28 AM CSTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 2 more4 hr
Dec 18, 6:46 PM CSTMesoscale DiscussionSPCAdams, Brown, Bureau, Carroll, Cass, Champaign and 46 more6 hr
Dec 19, 12:45 AM CSTMesoscale DiscussionSPCAdams, Brown, Bureau, Cass, Champaign, Christian and 45 more4 hr
Dec 19, 6:22 AM CSTMesoscale DiscussionSPCCook, DuPage, Kane, Lake, McHenry, Will5 hr
Dec 23, 6:02 AM CSTMesoscale DiscussionSPCAlexander, Johnson, Massac, Pope, Pulaski, Union4 hr
Dec 23, 10:30 AM CSTMesoscale DiscussionSPCClark, Clay, Crawford, Cumberland, Edwards, Effingham and 10 more4 hr
Dec 23, 12:08 PM CSTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Cass, Champaign, Christian and 60 more4 hr
Dec 23, 6:22 PM CSTMesoscale DiscussionSPCChampaign, DeWitt, Douglas, Ford, Grundy, Iroquois and 10 more4 hr
Dec 26, 11:15 PM CSTMesoscale DiscussionSPCAdams, Brown, Fulton, Hancock, Henderson, Knox and 6 more90 min
Dec 27, 8:03 AM CSTMesoscale DiscussionSPCBond, Brown, Calhoun, Clinton, Greene, Jersey and 8 more117 min
Dec 27, 8:48 AM CSTMesoscale DiscussionSPCCass, Christian, DeWitt, Fulton, Knox, Logan and 9 more27 min
Dec 27, 9:34 AM CSTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Clinton, Jackson, Jersey and 8 more56 min
Dec 27, 10:26 AM CSTMesoscale DiscussionSPCAdams, Alexander, Bond, Brown, Calhoun, Cass and 45 more94 min
Dec 27, 11:46 AM CSTMesoscale DiscussionSPCBureau, Calhoun, Cass, Christian, DeKalb, DeWitt and 32 more89 min
Dec 27, 1:54 PM CSTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 29 more2 hr
Dec 27, 3:46 PM CSTMesoscale DiscussionSPCAlexander, Clark, Clay, Clinton, Coles, Crawford and 27 more89 min
Dec 27, 5:06 PM CSTMesoscale DiscussionSPCCrawford, Edwards, Gallatin, Hamilton, Hardin, Johnson and 10 more84 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. January 8, 20089mesoscale discussions
  2. December 27, 20089mesoscale discussions
  3. July 8, 20087mesoscale discussions
  4. February 5, 20086mesoscale discussions
  5. April 25, 20086mesoscale discussions
  6. May 30, 20086mesoscale discussions
  7. June 3, 20086mesoscale discussions
  8. June 4, 20086mesoscale discussions
  9. January 29, 20085mesoscale discussions
  10. April 10, 20085mesoscale discussions
  11. May 26, 20085mesoscale discussions
  12. May 2, 20084mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20072009

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.