Alert archive / Illinois / Mesoscale Discussions

Mesoscale Discussions in Illinois, 2004

264 mesoscale discussions in 2004. 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 2004. Tap one for its archive.

Mesoscale Discussions
264
Busiest month
May86 mesoscale discussions
Busiest day
May 27, 200411 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 4, 2:08 AM CSTMesoscale DiscussionSPCBrown, Calhoun, Cass, Champaign, Christian, Coles and 19 more5 hr
Jan 4, 9:27 AM CSTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Ford, Grundy and 20 more4 hr
Jan 16, 1:38 PM CSTMesoscale DiscussionSPCCarroll, Jo Daviess, Ogle, Stephenson, Whiteside6 hr
Jan 16, 9:00 PM CSTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 9 more6 hr
Jan 24, 7:22 PM CSTMesoscale DiscussionSPCAlexander, Franklin, Jackson, Johnson, Massac, Monroe and 9 more4 hr
Jan 25, 7:46 AM CSTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 28 more6 hr
Jan 25, 1:31 PM CSTMesoscale DiscussionSPCBond, Calhoun, Cass, Champaign, Christian, Clark and 25 more4 hr
Jan 26, 10:15 PM CSTMesoscale DiscussionSPCEdwards, Gallatin, Hamilton, Lawrence, Wabash, White3 hr
Feb 2, 1:08 AM CSTMesoscale DiscussionSPCAdams, Brown, Bureau, Cass, Champaign, Christian and 33 more4 hr
Feb 5, 12:52 PM CSTMesoscale DiscussionSPCMercer, Rock Island6 hr
Mar 1, 10:06 AM CSTMesoscale DiscussionSPCAdams, Brown, Bureau, Carroll, Cass, Fulton and 22 more84 min
Mar 1, 1:30 PM CSTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Ford, Grundy and 8 more60 min
Mar 4, 9:24 PM CSTMesoscale DiscussionSPCAlexander66 min
Mar 15, 12:56 PM CSTMesoscale DiscussionSPCHenderson, Henry, Knox, Mercer, Rock Island, Stark and 1 more4 hr
Mar 16, 3:16 AM CSTMesoscale DiscussionSPCChampaign, Edgar, Vermilion4 hr
Mar 20, 9:20 AM CSTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 1 more85 min
Mar 24, 9:34 AM CSTMesoscale DiscussionSPCBureau, Henry, Knox, LaSalle, Lee, Marshall and 8 more56 min
Mar 28, 12:18 PM CSTMesoscale DiscussionSPCMonroe, Randolph117 min
Mar 28, 2:43 PM CSTMesoscale DiscussionSPCCook, DuPage, Grundy, Kane, Kankakee, Kendall and 3 more2 hr
Apr 17, 1:25 AM CDTMesoscale DiscussionSPCBoone, Carroll, DeKalb, DuPage, Jo Daviess, Kane and 7 more65 min
Apr 20, 6:00 PM CDTMesoscale DiscussionSPCBureau, Champaign, DeWitt, Ford, Fulton, Grundy and 20 more2 hr
Apr 20, 8:55 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 13 more65 min
Apr 20, 9:38 PM CDTMesoscale DiscussionSPCCalhoun37 min
Apr 20, 11:10 PM CDTMesoscale DiscussionSPCBrown, Calhoun, Cass, Christian, Fulton, Greene and 15 more2 hr
Apr 21, 2:58 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Jackson and 13 more92 min
Apr 24, 5:08 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more2 hr
Apr 24, 8:15 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Jackson, Johnson, Massac and 6 more60 min
Apr 24, 9:51 PM CDTMesoscale DiscussionSPCGallatin, Hardin, Johnson, Massac, Pope, Saline and 2 more54 min
Apr 30, 10:59 AM CDTMesoscale DiscussionSPCAdams, Alexander, Bond, Brown, Calhoun, Cass and 54 more2 hr
Apr 30, 1:52 PM CDTMesoscale DiscussionSPCAlexander, Clinton, Franklin, Gallatin, Hamilton, Hardin and 15 more113 min
May 1, 12:59 AM CDTMesoscale DiscussionSPCAlexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 18 more91 min
May 1, 12:36 PM CDTMesoscale DiscussionSPCGallatin, Hardin114 min
May 2, 9:49 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Fulton, Greene and 10 more116 min
May 6, 11:53 PM CDTMesoscale DiscussionSPCBureau, Carroll, DeKalb, Henry, Jo Daviess, Knox and 10 more97 min
May 7, 4:24 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 22 more96 min
May 7, 6:38 AM CDTMesoscale DiscussionSPCBureau, Champaign, DeWitt, Ford, Grundy, Iroquois and 12 more97 min
May 7, 11:44 AM CDTMesoscale DiscussionSPCBureau, Carroll, DeKalb, DuPage, Grundy, Henry and 9 more2 hr
May 7, 4:33 PM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 9 more87 min
May 7, 8:20 PM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 6 more85 min
May 8, 4:00 PM CDTMesoscale DiscussionSPCCook, DuPage, Lake, McHenry3 hr
May 8, 9:55 PM CDTMesoscale DiscussionSPCBoone, Cook, Lake, McHenry, Stephenson, Winnebago2 hr
May 9, 1:22 AM CDTMesoscale DiscussionSPCHancock23 min
May 9, 11:48 AM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Kane, Lake and 4 more2 hr
May 9, 2:46 PM CDTMesoscale DiscussionSPCCook, Lake89 min
May 9, 4:46 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Grundy, Henry and 10 more59 min
May 9, 5:17 PM CDTMesoscale DiscussionSPCCook, DuPage, Lake, Will88 min
May 9, 9:04 PM CDTMesoscale DiscussionSPCKankakee56 min
May 10, 11:05 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 19 more115 min
May 10, 6:05 PM CDTMesoscale DiscussionSPCCook, DeWitt, DuPage, Ford, Grundy, Iroquois and 5 more115 min
May 17, 10:22 AM CDTMesoscale DiscussionSPCCook, Ford, Iroquois, Kankakee, Will2 hr
May 17, 12:41 PM CDTMesoscale DiscussionSPCJo Daviess, Stephenson, Winnebago3 hr
May 17, 6:44 PM CDTMesoscale DiscussionSPCBoone, Jo Daviess, McHenry, Stephenson, Winnebago61 min
May 17, 11:37 PM CDTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Grundy, Kane and 8 more23 min
May 18, 12:41 AM CDTMesoscale DiscussionSPCGrundy, Kankakee, Will2 hr
May 18, 10:26 AM CDTMesoscale DiscussionSPCBond, Brown, Bureau, Calhoun, Cass, Champaign and 38 more3 hr
May 18, 2:38 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 23 more2 hr
May 18, 6:09 PM CDTMesoscale DiscussionSPCCass, Champaign, Christian, Clark, Clay, Coles and 27 more96 min
May 19, 11:26 AM CDTMesoscale DiscussionSPCGallatin, Hardin, Wabash, White2 hr
May 20, 11:31 AM CDTMesoscale DiscussionSPCHenderson, Henry, Jo Daviess, Knox, Mercer, Rock Island and 1 more2 hr
May 20, 7:32 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 21 more88 min
May 21, 4:34 AM CDTMesoscale DiscussionSPCJo Daviess56 min
May 21, 9:40 AM CDTMesoscale DiscussionSPCCook, DuPage, Kane, Kankakee, Lake, Will2 hr
May 21, 7:37 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 19 more83 min
May 22, 2:41 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 23 more94 min
May 22, 6:58 AM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 13 more62 min
May 22, 11:03 AM CDTMesoscale DiscussionSPCDeWitt, Ford, Grundy, Iroquois, Kankakee, LaSalle and 9 more57 min
May 22, 5:52 PM CDTMesoscale DiscussionSPCBureau, Carroll, DeKalb, Grundy, Henry, Jo Daviess and 12 more113 min
May 22, 8:58 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 23 more92 min
May 23, 12:24 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 32 more66 min
May 23, 1:21 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Greene, Jersey and 6 more24 min
May 23, 4:30 AM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Carroll, Cass and 44 more60 min
May 23, 12:25 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Calhoun, Carroll, Cass and 31 more95 min
May 23, 12:45 PM CDTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Edgar and 18 more2 hr
May 23, 2:53 PM CDTMesoscale DiscussionSPCIroquois, Vermilion67 min
May 23, 5:00 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 28 more2 hr
May 23, 5:10 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 17 more95 min
May 23, 6:30 PM CDTMesoscale DiscussionSPCCook, DuPage, Iroquois, Kankakee, Vermilion, Will2 hr
May 23, 8:40 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 31 more65 min
May 24, 1:54 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more96 min
May 24, 5:26 PM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, Henderson, McDonough, Pike and 2 more94 min
May 24, 8:15 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Hancock, Henderson, McDonough and 3 more90 min
May 24, 10:26 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 36 more64 min
May 24, 11:45 PM CDTMesoscale DiscussionSPCBond, Calhoun, Cass, Champaign, Christian, Clark and 24 more90 min
May 25, 9:19 AM CDTMesoscale DiscussionSPCEdwards, Gallatin, Hamilton, Hardin, Lawrence, Pope and 4 more86 min
May 25, 2:39 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more96 min
May 25, 3:16 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clinton, Fayette, Greene and 12 more89 min
May 25, 5:03 PM CDTMesoscale DiscussionSPCAlexander, Bond, Clay, Clinton, Crawford, Edwards and 25 more87 min
May 25, 6:04 PM CDTMesoscale DiscussionSPCBond, Clinton, Madison, Monroe, Perry, Randolph and 2 more56 min
May 25, 7:28 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 17 more92 min
May 26, 8:20 AM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 31 more85 min
May 26, 10:50 AM CDTMesoscale DiscussionSPCAlexander, Bond, Clay, Clinton, Crawford, Edwards and 28 more85 min
May 26, 3:32 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Jackson and 13 more88 min
May 26, 5:10 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 29 more65 min
May 26, 5:57 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Hamilton, Jackson, Jefferson, Johnson and 10 more93 min
May 26, 7:57 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 13 more63 min
May 26, 9:36 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 25 more54 min
May 26, 11:14 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 17 more2 hr
May 27, 1:53 AM CDTMesoscale DiscussionSPCChristian, Clark, Clay, Coles, Crawford, Cumberland and 9 more3 hr
May 27, 11:10 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Christian, DeWitt and 25 more2 hr
May 27, 1:07 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, DeWitt, Douglas, Edgar and 12 more113 min
May 27, 1:52 PM CDTMesoscale DiscussionSPCAdams, Calhoun, Greene, Jersey, Macoupin, Pike and 1 more113 min
May 27, 3:12 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Cumberland, DeWitt and 13 more2 hr
May 27, 3:37 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clay, Clinton, Edwards, Effingham and 22 more113 min
May 27, 5:01 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Fayette, Greene, Jackson and 11 more89 min
May 27, 6:00 PM CDTMesoscale DiscussionSPCChampaign, DeWitt, Douglas, Edgar, Macon, Morgan and 4 more90 min
May 27, 7:12 PM CDTMesoscale DiscussionSPCAlexander, Clay, Clinton, Edwards, Franklin, Gallatin and 22 more93 min
May 27, 10:27 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 3 more93 min
May 30, 9:40 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Greene, Hancock and 6 more3 hr
May 30, 10:04 AM CDTMesoscale DiscussionSPCAlexander, Clay, Clinton, Edwards, Franklin, Gallatin and 19 more2 hr
May 30, 11:04 AM CDTMesoscale DiscussionSPCChampaign, Cook, DeWitt, Douglas, DuPage, Iroquois and 4 more116 min
May 30, 12:13 PM CDTMesoscale DiscussionSPCCarroll, Hancock, Henderson, Henry, Jo Daviess, Knox and 4 more2 hr
May 30, 12:53 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Christian, Fulton and 13 more2 hr
May 30, 3:16 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cass, DeKalb, DuPage and 29 more119 min
May 30, 5:10 PM CDTMesoscale DiscussionSPCAlexander, Bond, Clinton, Fayette, Jackson, Madison and 7 more95 min
May 30, 5:36 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cass, Champaign, Christian and 39 more54 min
May 30, 8:39 PM CDTMesoscale DiscussionSPCHardin96 min
May 31, 8:25 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 19 more2 hr
Jun 1, 1:30 PM CDTMesoscale DiscussionSPCAlexander, Bond, Champaign, Christian, Clark, Clay and 45 more60 min
Jun 1, 7:40 PM CDTMesoscale DiscussionSPCEdwards, Franklin, Gallatin, Hamilton, Saline, Wabash and 1 more65 min
Jun 1, 8:34 PM CDTMesoscale DiscussionSPCEdwards, Franklin, Gallatin, Hamilton, Saline, Wabash and 1 more56 min
Jun 9, 5:54 PM CDTMesoscale DiscussionSPCWhite96 min
Jun 10, 11:46 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 27 more89 min
Jun 10, 5:30 PM CDTMesoscale DiscussionSPCBureau, DeKalb, DuPage, Grundy, Henry, Iroquois and 11 more90 min
Jun 10, 7:58 PM CDTMesoscale DiscussionSPCBureau, Carroll, Champaign, DeWitt, Douglas, Edgar and 27 more92 min
Jun 11, 5:56 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 14 more94 min
Jun 11, 10:04 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Grundy, Jo Daviess and 10 more56 min
Jun 12, 1:48 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 19 more87 min
Jun 12, 3:08 AM CDTMesoscale DiscussionSPCCook, DeKalb, DuPage, Grundy, Iroquois, Kane and 7 more97 min
Jun 12, 10:48 AM CDTMesoscale DiscussionSPCGallatin, Hardin, Massac, Pope2 hr
Jun 12, 3:51 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 11 more84 min
Jun 12, 6:08 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more37 min
Jun 12, 7:09 PM CDTMesoscale DiscussionSPCHenderson, Mercer, Rock Island, Warren96 min
Jun 13, 11:45 AM CDTMesoscale DiscussionSPCCook, Lake90 min
Jun 14, 5:25 AM CDTMesoscale DiscussionSPCBureau, DeKalb, Grundy, Henderson, Henry, Kendall and 12 more3 hr
Jun 14, 7:42 AM CDTMesoscale DiscussionSPCBureau, Carroll, Cass, DeKalb, DeWitt, Ford and 31 more2 hr
Jun 14, 10:03 AM CDTMesoscale DiscussionSPCBoone, Bureau, Champaign, Cook, DeKalb, DeWitt and 32 more57 min
Jun 14, 3:15 PM CDTMesoscale DiscussionSPCBond, Calhoun, Greene, Jersey, Macoupin, Madison and 2 more90 min
Jun 15, 8:54 AM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Coles, Crawford and 13 more2 hr
Jun 16, 9:15 AM CDTMesoscale DiscussionSPCGallatin, Hardin90 min
Jun 16, 3:59 PM CDTMesoscale DiscussionSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 6 more2 hr
Jun 16, 5:01 PM CDTMesoscale DiscussionSPCCarroll, Henderson, Henry, Jo Daviess, Lee, Mercer and 6 more89 min
Jun 17, 2:34 PM CDTMesoscale DiscussionSPCClark, Clay, Crawford, Cumberland, Edgar, Edwards and 19 more116 min
Jun 18, 1:20 PM CDTMesoscale DiscussionSPCBond, Brown, Calhoun, Cass, Christian, Clinton and 27 more115 min
Jun 18, 3:49 PM CDTMesoscale DiscussionSPCClay, Crawford, Edwards, Effingham, Franklin, Gallatin and 15 more116 min
Jun 18, 6:17 PM CDTMesoscale DiscussionSPCBond, Clark, Clay, Crawford, Cumberland, Edwards and 22 more88 min
Jun 23, 11:23 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 25 more2 hr
Jun 23, 3:45 PM CDTMesoscale DiscussionSPCBoone, Jo Daviess, McHenry, Stephenson, Winnebago90 min
Jul 3, 11:38 AM CDTMesoscale DiscussionSPCBureau, Champaign, Clark, Coles, Cook, Crawford and 38 more2 hr
Jul 3, 2:44 PM CDTMesoscale DiscussionSPCCook, DuPage, Grundy, Kane, Kankakee, Kendall and 1 more2 hr
Jul 3, 6:16 PM CDTMesoscale DiscussionSPCChampaign, Clark, Crawford, Edgar, Ford, Iroquois and 4 more119 min
Jul 4, 11:24 AM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Crawford, Cumberland, Edwards and 22 more3 hr
Jul 4, 3:04 PM CDTMesoscale DiscussionSPCClay, Edwards, Gallatin, Hamilton, Lawrence, Richland and 3 more116 min
Jul 5, 9:12 AM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 34 more63 min
Jul 5, 12:08 PM CDTMesoscale DiscussionSPCEdwards, Hardin, Lawrence, Richland, Wabash67 min
Jul 5, 3:00 PM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, Henderson, McDonough, Mercer and 3 more60 min
Jul 5, 3:43 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Jackson, Jersey, Madison and 5 more92 min
Jul 5, 6:30 PM CDTMesoscale DiscussionSPCBureau, Carroll, Henry, Jo Daviess, Mercer, Rock Island and 1 more60 min
Jul 5, 7:05 PM CDTMesoscale DiscussionSPCBond, Calhoun, Greene, Jersey, Macoupin, Madison and 2 more55 min
Jul 5, 9:29 PM CDTMesoscale DiscussionSPCBureau, Carroll, Henderson, Henry, Jo Daviess, Lee and 8 more61 min
Jul 5, 11:14 PM CDTMesoscale DiscussionSPCChampaign, DeWitt, Douglas, Edgar, Ford, Iroquois and 13 more91 min
Jul 5, 11:44 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clark, Clay, Clinton, Coles and 26 more91 min
Jul 6, 9:00 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Champaign, Christian and 28 more60 min
Jul 6, 11:01 AM CDTMesoscale DiscussionSPCAlexander, Bond, Clay, Clinton, Crawford, Cumberland and 29 more59 min
Jul 6, 2:34 PM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 17 more56 min
Jul 6, 2:53 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 33 more37 min
Jul 6, 5:37 PM CDTMesoscale DiscussionSPCAlexander, Johnson, Pulaski, Union53 min
Jul 6, 8:03 PM CDTMesoscale DiscussionSPCVermilion57 min
Jul 9, 2:15 PM CDTMesoscale DiscussionSPCGrundy, Iroquois, Kankakee, Will2 hr
Jul 9, 4:26 PM CDTMesoscale DiscussionSPCFulton, Hancock, Henderson, Knox, Logan, McDonough and 10 more94 min
Jul 9, 7:16 PM CDTMesoscale DiscussionSPCCass, Champaign, Clark, Coles, DeWitt, Douglas and 23 more2 hr
Jul 10, 1:53 PM CDTMesoscale DiscussionSPCCass, Champaign, Christian, Clark, Coles, Crawford and 14 more3 hr
Jul 11, 10:14 AM CDTMesoscale DiscussionSPCBureau, Carroll, DeKalb, DuPage, Ford, Fulton and 24 more91 min
Jul 11, 5:19 PM CDTMesoscale DiscussionSPCBond, Calhoun, Champaign, Christian, Clinton, Coles and 18 more116 min
Jul 13, 10:32 AM CDTMesoscale DiscussionSPCBureau, Carroll, Ford, Grundy, Henry, Iroquois and 14 more118 min
Jul 13, 1:39 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Ford, Fulton and 27 more66 min
Jul 13, 2:30 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 6 more2 hr
Jul 13, 5:00 PM CDTMesoscale DiscussionSPCBond, Christian, Clay, Crawford, Cumberland, Edwards and 15 more2 hr
Jul 13, 7:36 PM CDTMesoscale DiscussionSPCGallatin, Hamilton, Hardin, Wayne, White114 min
Jul 13, 11:13 PM CDTMesoscale DiscussionSPCAlexander, Clark, Clay, Coles, Crawford, Cumberland and 28 more2 hr
Jul 16, 10:51 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 22 more2 hr
Jul 16, 2:45 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 33 more90 min
Jul 19, 3:26 PM CDTMesoscale DiscussionSPCCarroll, Henderson, Henry, Jo Daviess, Knox, Mercer and 5 more2 hr
Jul 20, 5:35 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 9 more55 min
Jul 20, 6:08 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 9 more2 hr
Jul 21, 7:53 AM CDTMesoscale DiscussionSPCBoone, DuPage, Kane, Lake, McHenry, Stephenson and 1 more2 hr
Jul 21, 9:03 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, Cook, DeKalb and 37 more117 min
Jul 21, 10:18 AM CDTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Ford, Grundy and 14 more87 min
Jul 21, 1:01 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 25 more89 min
Jul 21, 5:09 PM CDTMesoscale DiscussionSPCBureau, DeWitt, Ford, Grundy, Iroquois, Kankakee and 13 more36 min
Jul 21, 6:20 PM CDTMesoscale DiscussionSPCClark, Coles, Edgar, Vermilion25 min
Jul 22, 11:59 AM CDTMesoscale DiscussionSPCChampaign, DeWitt, Ford, Grundy, Iroquois, Kankakee and 10 more2 hr
Jul 22, 1:52 PM CDTMesoscale DiscussionSPCChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 10 more83 min
Jul 22, 6:08 PM CDTMesoscale DiscussionSPCJersey, Madison, Monroe, Saint Clair97 min
Jul 22, 6:42 PM CDTMesoscale DiscussionSPCEdwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 9 more93 min
Aug 2, 11:11 AM CDTMesoscale DiscussionSPCChampaign, Coles, Cook, DeWitt, Douglas, DuPage and 15 more2 hr
Aug 3, 11:22 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Jersey, Monroe, Pike and 1 more83 min
Aug 3, 3:55 PM CDTMesoscale DiscussionSPCAdams, Carroll, Fulton, Hancock, Henderson, Henry and 7 more95 min
Aug 3, 5:39 PM CDTMesoscale DiscussionSPCCarroll, Henderson, Henry, Jo Daviess, Knox, Mercer and 3 more66 min
Aug 3, 6:34 PM CDTMesoscale DiscussionSPCBureau, Carroll, Henderson, Henry, Jo Daviess, Knox and 7 more86 min
Aug 3, 7:38 PM CDTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Ford, Grundy and 14 more67 min
Aug 3, 8:19 PM CDTMesoscale DiscussionSPCCarroll, Henry, Jo Daviess, Knox, Mercer, Rock Island and 2 more56 min
Aug 3, 9:52 PM CDTMesoscale DiscussionSPCCook, DuPage, Grundy, Kane, Kendall, Lake and 3 more53 min
Aug 3, 10:38 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Greene, Jersey and 3 more67 min
Aug 4, 1:42 AM CDTMesoscale DiscussionSPCFulton, Henderson, Jersey, Livingston, McDonough, Mason and 5 more2 hr
Aug 4, 3:52 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Champaign, Christian and 32 more53 min
Aug 4, 3:39 PM CDTMesoscale DiscussionSPCHardin, Massac, Pope96 min
Aug 9, 1:29 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Pike, Schuyler, Scott91 min
Aug 17, 12:57 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Calhoun, Carroll, Cass and 38 more63 min
Aug 17, 3:59 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Calhoun, Cass, Champaign and 41 more61 min
Aug 17, 5:57 PM CDTMesoscale DiscussionSPCCalhoun, Cass, Champaign, Christian, DeWitt, Douglas and 19 more93 min
Aug 17, 7:48 PM CDTMesoscale DiscussionSPCFord, Grundy, Iroquois, Kankakee, Livingston, Will117 min
Aug 18, 1:39 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 28 more96 min
Aug 18, 4:17 PM CDTMesoscale DiscussionSPCHancock, Henderson, Mercer, Rock Island, Warren118 min
Aug 18, 5:17 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Cass, Champaign, Christian and 48 more88 min
Aug 18, 7:26 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, Clark and 36 more2 hr
Aug 18, 9:40 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Champaign, Christian, DeWitt and 18 more95 min
Aug 19, 5:50 PM CDTMesoscale DiscussionSPCEdwards, Franklin, Gallatin, Hamilton, Hardin, Jackson and 14 more85 min
Aug 24, 1:13 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 40 more2 hr
Aug 25, 9:24 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, DeWitt, Fulton and 22 more2 hr
Aug 25, 11:59 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Greene, Hancock, Pike and 2 more91 min
Aug 25, 1:22 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cass, Champaign, DeKalb and 42 more113 min
Aug 25, 5:14 PM CDTMesoscale DiscussionSPCBond, Brown, Calhoun, Cass, Champaign, Christian and 34 more91 min
Aug 25, 7:47 PM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Cass, Champaign, Christian and 48 more58 min
Aug 25, 9:57 PM CDTMesoscale DiscussionSPCAdams, Hancock93 min
Aug 26, 3:50 PM CDTMesoscale DiscussionSPCCalhoun, Monroe115 min
Aug 26, 9:13 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Rock Island, Stephenson62 min
Aug 26, 11:53 PM CDTMesoscale DiscussionSPCBureau, Cook, DeKalb, DuPage, Grundy, Kane and 8 more97 min
Aug 27, 1:49 AM CDTMesoscale DiscussionSPCHenderson, Henry, Mercer, Ogle, Rock Island, Whiteside and 1 more56 min
Aug 27, 4:36 AM CDTMesoscale DiscussionSPCCook, DeWitt, Ford, Fulton, Grundy, Hancock and 11 more84 min
Aug 27, 6:33 AM CDTMesoscale DiscussionSPCChampaign, DeWitt, Ford, Iroquois, McLean, Mason and 4 more27 min
Aug 27, 9:24 AM CDTMesoscale DiscussionSPCCalhoun, Greene, Jersey, Macoupin, Madison, Morgan and 2 more96 min
Aug 27, 1:07 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Greene, Jersey and 6 more113 min
Aug 27, 3:49 PM CDTMesoscale DiscussionSPCCalhoun, Cass, Greene, Jersey, Morgan, Pike and 1 more86 min
Aug 27, 4:10 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Fulton, Hancock, Henderson and 14 more2 hr
Oct 17, 10:01 PM CDTMesoscale DiscussionSPCMonroe, Randolph3 hr
Oct 18, 2:19 AM CDTMesoscale DiscussionSPCAlexander, Monroe, Randolph, Saint Clair56 min
Oct 18, 4:40 AM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Clay, Clinton, Fayette and 16 more35 min
Oct 18, 7:44 AM CDTMesoscale DiscussionSPCAlexander, Massac, Pulaski61 min
Oct 18, 10:20 AM CDTMesoscale DiscussionSPCAlexander, Bond, Clay, Clinton, Edwards, Effingham and 27 more85 min
Oct 18, 12:04 PM CDTMesoscale DiscussionSPCAlexander, Jackson, Monroe, Pulaski, Randolph, Union86 min
Oct 18, 1:55 PM CDTMesoscale DiscussionSPCGallatin, Hardin, Johnson, Massac, Pope, Pulaski and 2 more95 min
Oct 18, 3:41 PM CDTMesoscale DiscussionSPCAlexander, Clinton, Jackson, Monroe, Perry, Randolph and 3 more94 min
Oct 18, 6:05 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Crawford, Edwards, Effingham and 23 more115 min
Oct 22, 12:11 PM CDTMesoscale DiscussionSPCCarroll, Hancock, Henderson, Henry, Jo Daviess, Knox and 6 more2 hr
Oct 23, 4:49 PM CDTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Edgar and 9 more116 min
Oct 26, 5:21 PM CDTMesoscale DiscussionSPCAlexander, Johnson, Massac, Pulaski, Union114 min
Oct 29, 5:46 PM CDTMesoscale DiscussionSPCJo Daviess89 min
Oct 29, 6:16 PM CDTMesoscale DiscussionSPCBond, Brown, Cass, Champaign, Christian, Coles and 33 more119 min
Oct 29, 9:02 PM CDTMesoscale DiscussionSPCBureau, Carroll, Fulton, Hancock, Henderson, Henry and 11 more88 min
Oct 29, 10:45 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 14 more60 min
Oct 30, 1:02 AM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Grundy, Kane and 6 more88 min
Nov 1, 2:25 PM CSTMesoscale DiscussionSPCAlexander, Clay, Cumberland, Effingham, Franklin, Hamilton and 9 more95 min
Nov 24, 6:50 AM CSTMesoscale DiscussionSPCAdams, Brown, Cass, DeWitt, Ford, Fulton and 20 more5 hr
Nov 24, 10:16 AM CSTMesoscale DiscussionSPCGallatin, Hardin, Johnson, Massac, Pope, Pulaski and 1 more2 hr
Nov 24, 12:31 PM CSTMesoscale DiscussionSPCBrown, Bureau, Cass, Champaign, Christian, DeKalb and 32 more5 hr
Nov 24, 12:55 PM CSTMesoscale DiscussionSPCEdwards, Gallatin, Hamilton, Hardin, Pope, Saline and 3 more95 min
Nov 24, 2:56 PM CSTMesoscale DiscussionSPCEdwards, Gallatin, Hamilton, Hardin, Pope, Saline and 3 more2 hr
Nov 30, 5:50 PM CSTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, Coles, Cook and 37 more6 hr
Dec 21, 6:35 PM CSTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Jackson, Jefferson and 8 more4 hr
Dec 22, 1:04 AM CSTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 15 more6 hr
Dec 22, 5:02 AM CSTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 12 more6 hr
Dec 22, 12:12 PM CSTMesoscale DiscussionSPCMassac, Pope4 hr
Dec 22, 6:18 PM CSTMesoscale DiscussionSPCAlexander, Clay, Crawford, Edwards, Franklin, Gallatin and 19 more5 hr
Dec 23, 12:57 AM CSTMesoscale DiscussionSPCLawrence, Wabash5 hr

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 27, 200411mesoscale discussions
  2. May 23, 200410mesoscale discussions
  3. July 6, 20049mesoscale discussions
  4. August 27, 20049mesoscale discussions
  5. October 18, 20049mesoscale discussions
  6. May 25, 20048mesoscale discussions
  7. May 30, 20048mesoscale discussions
  8. August 4, 20047mesoscale discussions
  9. May 9, 20046mesoscale discussions
  10. May 26, 20046mesoscale discussions
  11. June 12, 20046mesoscale discussions
  12. July 21, 20046mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20032005

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.