Alert archive / Illinois / Mesoscale Discussions
Mesoscale Discussions in Illinois, 2007
196 mesoscale discussions in 2007. 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 2007. Tap one for its archive.
- Mesoscale Discussions
- 196
- Busiest month
- August38 mesoscale discussions
- Busiest day
- March 1, 20079 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 31, 6:14 PM CST | Mesoscale Discussion | SPC | Cook, Edgar, Iroquois, Kankakee, Vermilion, Will | 2 hr |
| Jan 12, 12:34 PM CST | Mesoscale Discussion | SPC | Calhoun, Pike | 5 hr |
| Jan 12, 6:33 PM CST | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 32 more | 5 hr |
| Jan 14, 12:21 AM CST | Mesoscale Discussion | SPC | Boone, Bureau, Cook, DeKalb, DuPage, Ford and 20 more | 5 hr |
| Jan 14, 7:07 PM CST | Mesoscale Discussion | SPC | Boone, DeKalb, Lee, McHenry, Ogle | 5 hr |
| Jan 14, 11:34 PM CST | Mesoscale Discussion | SPC | Boone, DeKalb, Kane, Kendall, Lee, McHenry and 1 more | 5 hr |
| Jan 21, 2:52 AM CST | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Crawford, Cumberland, Douglas and 5 more | 3 hr |
| Jan 21, 3:29 AM CST | Mesoscale Discussion | SPC | Jo Daviess | 6 hr |
| Feb 6, 6:24 AM CST | Mesoscale Discussion | SPC | Bureau, Champaign, DeWitt, Ford, Fulton, Grundy and 23 more | 3 hr |
| Feb 6, 10:45 AM CST | Mesoscale Discussion | SPC | Champaign, Edgar, Ford, Iroquois, Kankakee, Vermilion and 1 more | 5 hr |
| Feb 12, 7:03 PM CST | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 44 more | 6 hr |
| Feb 13, 6:55 AM CST | Mesoscale Discussion | SPC | Bond, Brown, Calhoun, Cass, Champaign, Christian and 25 more | 6 hr |
| Feb 13, 12:51 PM CST | Mesoscale Discussion | SPC | Bond, Calhoun, Champaign, Christian, Clark, Coles and 26 more | 6 hr |
| Feb 13, 1:32 PM CST | Mesoscale Discussion | SPC | Clay, Crawford, Jasper, Lawrence, Marion, Richland | 6 hr |
| Feb 20, 3:52 PM CST | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski, Union | 83 min |
| Feb 20, 6:27 PM CST | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 93 min |
| Feb 20, 8:43 PM CST | Mesoscale Discussion | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 92 min |
| Feb 24, 12:19 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Grundy, Henderson and 20 more | 5 hr |
| Feb 24, 6:02 PM CST | Mesoscale Discussion | SPC | Grundy, Iroquois, Kankakee, Livingston, Will | 5 hr |
| Feb 28, 10:30 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 5 more | 90 min |
| Feb 28, 11:48 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Greene, Jersey and 5 more | 57 min |
| Mar 1, 12:12 AM CST | Mesoscale Discussion | SPC | Alexander, Jackson, Johnson, Massac, Pope, Pulaski and 2 more | 2 hr |
| Mar 1, 2:28 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Christian, Greene and 11 more | 92 min |
| Mar 1, 3:35 AM CST | Mesoscale Discussion | SPC | Clinton, Jackson, Monroe, Perry, Randolph, Saint Clair and 1 more | 55 min |
| Mar 1, 4:18 AM CST | Mesoscale Discussion | SPC | Gallatin, Hardin, Johnson, Massac, Pope, Saline | 117 min |
| Mar 1, 10:24 AM CST | Mesoscale Discussion | SPC | Brown, Bureau, Cass, Cook, DeKalb, DeWitt and 28 more | 96 min |
| Mar 1, 12:48 PM CST | Mesoscale Discussion | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 28 more | 117 min |
| Mar 1, 1:47 PM CST | Mesoscale Discussion | SPC | Cook, DeKalb, DuPage, Ford, Grundy, Iroquois and 7 more | 88 min |
| Mar 14, 1:50 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Clark, Clay, Coles, Crawford and 15 more | 85 min |
| Mar 18, 10:32 PM CDT | Mesoscale Discussion | SPC | Adams, Hancock, Henderson, Henry, Knox, McDonough and 4 more | 2 hr |
| Mar 19, 2:57 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 11 more | 2 hr |
| Mar 21, 9:44 AM CDT | Mesoscale Discussion | SPC | Adams, Hancock, Henderson | 2 hr |
| Mar 21, 12:30 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Henry, Jo Daviess, Knox, Lee and 7 more | 90 min |
| Mar 21, 1:26 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Henry, Jo Daviess, Lee and 7 more | 64 min |
| Mar 21, 5:15 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DuPage, Kane, Lake, McHenry and 1 more | 2 hr |
| Mar 22, 2:02 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Greene, Hancock and 16 more | 118 min |
| Mar 22, 2:49 AM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 14 more | 26 min |
| Mar 22, 4:43 AM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Cumberland, Douglas, Edgar and 4 more | 62 min |
| Mar 22, 6:13 AM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 20 more | 62 min |
| Mar 22, 7:08 AM CDT | Mesoscale Discussion | SPC | Clark | 67 min |
| Mar 30, 1:18 PM CDT | Mesoscale Discussion | SPC | Adams, Alexander, Bond, Brown, Calhoun, Cass and 27 more | 87 min |
| Mar 31, 12:57 PM CDT | Mesoscale Discussion | SPC | Calhoun, Greene, Jersey, Pike | 2 hr |
| Mar 31, 4:25 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Champaign, Christian, DeKalb and 39 more | 2 hr |
| Mar 31, 7:10 PM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 3 more | 65 min |
| Mar 31, 7:25 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cass, Champaign, Christian and 37 more | 65 min |
| Mar 31, 9:17 PM CDT | Mesoscale Discussion | SPC | Bond, Boone, Champaign, Christian, Clinton, Coles and 36 more | 58 min |
| Apr 2, 11:33 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Ogle, Stephenson, Winnebago | 57 min |
| Apr 3, 1:27 AM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Rock Island, Stephenson, Whiteside | 93 min |
| Apr 3, 4:05 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Cass, Fulton, Hancock and 19 more | 55 min |
| Apr 3, 7:17 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Fulton, Greene and 15 more | 88 min |
| Apr 3, 9:08 AM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 26 more | 67 min |
| Apr 3, 9:46 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clark, Clay, Clinton and 37 more | 29 min |
| Apr 3, 11:04 AM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 11 more | 26 min |
| Apr 3, 2:25 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Clay, Clinton, Crawford, Edwards and 26 more | 65 min |
| Apr 11, 7:30 AM CDT | Mesoscale Discussion | SPC | Jo Daviess, Stephenson, Winnebago | 6 hr |
| Apr 11, 2:04 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 19 more | 86 min |
| Apr 22, 12:07 PM CDT | Mesoscale Discussion | SPC | Jo Daviess, Rock Island | 113 min |
| Apr 24, 1:13 PM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 92 min |
| Apr 24, 10:05 PM CDT | Mesoscale Discussion | SPC | Alexander, Jackson, Monroe, Pulaski, Randolph, Union | 85 min |
| Apr 24, 11:14 PM CDT | Mesoscale Discussion | SPC | Cass, Champaign, DeWitt, Douglas, Edgar, Ford and 14 more | 91 min |
| Apr 25, 12:45 AM CDT | Mesoscale Discussion | SPC | Alexander, Pulaski | 90 min |
| Apr 26, 4:55 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Crawford, Cumberland, Douglas and 10 more | 95 min |
| Apr 29, 3:52 PM CDT | Mesoscale Discussion | SPC | Boone, Jo Daviess, McHenry, Stephenson, Winnebago | 83 min |
| Apr 30, 3:46 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Jo Daviess, Lee, Ogle, Stephenson and 1 more | 59 min |
| May 1, 12:09 PM CDT | Mesoscale Discussion | SPC | Will | 2 hr |
| May 15, 12:15 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Crawford, Cumberland, Douglas and 5 more | 90 min |
| May 15, 3:30 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clay, Clinton, Coles and 32 more | 90 min |
| May 15, 3:32 PM CDT | Mesoscale Discussion | SPC | Ford, Iroquois, Kankakee, Vermilion | 58 min |
| May 15, 4:58 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more | 62 min |
| May 15, 5:25 PM CDT | Mesoscale Discussion | SPC | Clark, Clay, Coles, Crawford, Cumberland, Edgar and 8 more | 35 min |
| May 16, 1:42 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, DuPage, Jo Daviess, Kane and 6 more | 93 min |
| May 25, 12:33 PM CDT | Mesoscale Discussion | SPC | Bond, Clark, Clay, Clinton, Coles, Crawford and 17 more | 2 hr |
| May 26, 12:54 PM CDT | Mesoscale Discussion | SPC | Hancock, Henderson, Henry, Knox, McDonough, Mercer and 2 more | 2 hr |
| Jun 1, 11:09 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 29 more | 2 hr |
| Jun 1, 2:35 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 11 more | 85 min |
| Jun 3, 12:23 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 8 more | 97 min |
| Jun 7, 2:20 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Henry, Lee and 5 more | 115 min |
| Jun 7, 5:59 PM CDT | Mesoscale Discussion | SPC | Boone, DeKalb, Lee, McHenry, Ogle, Winnebago | 61 min |
| Jun 7, 7:54 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Fulton, Greene and 9 more | 2 hr |
| Jun 7, 9:23 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Jo Daviess, Lee, McHenry, Mercer and 5 more | 97 min |
| Jun 7, 9:48 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 13 more | 87 min |
| Jun 7, 11:12 PM CDT | Mesoscale Discussion | SPC | Calhoun, Greene, Jersey, Macoupin, Madison, Monroe and 3 more | 93 min |
| Jun 8, 6:23 AM CDT | Mesoscale Discussion | SPC | Alexander, Johnson, Massac, Pope, Pulaski, Union and 1 more | 67 min |
| Jun 21, 9:57 AM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Champaign, Cook, DeKalb and 42 more | 33 min |
| Jun 21, 12:27 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, Jo Daviess, Kane, McHenry and 3 more | 63 min |
| Jun 21, 3:25 PM CDT | Mesoscale Discussion | SPC | Jo Daviess | 35 min |
| Jun 21, 5:42 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Fulton, Henderson, Henry, Jo Daviess and 15 more | 93 min |
| Jun 21, 8:38 PM CDT | Mesoscale Discussion | SPC | Cass, DeWitt, Fulton, Knox, Logan, McLean and 9 more | 97 min |
| Jun 22, 1:41 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Hancock, Henderson, McDonough, Pike and 2 more | 64 min |
| Jun 22, 5:30 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Clinton, Greene and 9 more | 90 min |
| Jun 22, 7:38 PM CDT | Mesoscale Discussion | SPC | Henderson | 97 min |
| Jun 23, 12:28 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clay, Clinton, Effingham and 18 more | 2 hr |
| Jun 28, 11:14 AM CDT | Mesoscale Discussion | SPC | Bond, Clark, Clay, Clinton, Crawford, Cumberland and 15 more | 3 hr |
| Jul 3, 10:24 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Stephenson | 96 min |
| Jul 4, 12:59 AM CDT | Mesoscale Discussion | SPC | Henry, Knox, Marshall, Mercer, Peoria, Rock Island and 2 more | 3 hr |
| Jul 4, 12:27 PM CDT | Mesoscale Discussion | SPC | Bond, Clay, Clinton, Edwards, Fayette, Franklin and 24 more | 63 min |
| Jul 4, 5:14 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Clay, Clinton, Crawford, Cumberland and 29 more | 91 min |
| Jul 10, 1:14 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Hancock, Henderson and 13 more | 61 min |
| Jul 14, 5:24 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 9 more | 96 min |
| Jul 14, 7:44 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Pike, Schuyler | 91 min |
| Jul 16, 6:36 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Hancock, McDonough, Pike, Schuyler | 84 min |
| Jul 16, 9:50 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Grundy and 21 more | 85 min |
| Jul 17, 2:53 AM CDT | Mesoscale Discussion | SPC | Rock Island | 82 min |
| Jul 17, 6:58 AM CDT | Mesoscale Discussion | SPC | Bureau, Cass, DeWitt, Fulton, Grundy, Henderson and 17 more | 92 min |
| Jul 17, 10:52 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Clark, Clay, Clinton, Coles and 32 more | 83 min |
| Jul 17, 1:33 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Henry, Jo Daviess, Knox, Mercer and 5 more | 117 min |
| Jul 17, 3:34 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 12 more | 86 min |
| Jul 17, 11:24 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, DeKalb, Henderson, Henry, Jo Daviess and 15 more | 96 min |
| Jul 18, 3:35 AM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, Jo Daviess, Kane, Lee and 5 more | 85 min |
| Jul 18, 4:21 AM CDT | Mesoscale Discussion | SPC | Clark, Clay, Coles, Crawford, Cumberland, Douglas and 10 more | 54 min |
| Jul 18, 4:59 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Champaign, Cook, DeKalb and 32 more | 91 min |
| Jul 18, 6:38 PM CDT | Mesoscale Discussion | SPC | Champaign, Cook, Douglas, DuPage, Edgar, Ford and 11 more | 97 min |
| Jul 18, 6:50 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Henderson, Henry and 18 more | 85 min |
| Jul 18, 9:06 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Champaign, Coles, Cook, DeKalb and 38 more | 84 min |
| Jul 18, 10:23 PM CDT | Mesoscale Discussion | SPC | Mercer, Rock Island | 97 min |
| Jul 19, 1:27 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Clark, Clay, Clinton, Coles and 26 more | 93 min |
| Jul 19, 5:38 PM CDT | Mesoscale Discussion | SPC | Clinton, Edwards, Franklin, Gallatin, Hamilton, Hardin and 17 more | 97 min |
| Jul 26, 3:16 AM CDT | Mesoscale Discussion | SPC | Cook | 89 min |
| Jul 26, 9:53 PM CDT | Mesoscale Discussion | SPC | Boone, Jo Daviess, Kane, McHenry, Ogle, Stephenson and 1 more | 97 min |
| Jul 27, 2:34 PM CDT | Mesoscale Discussion | SPC | Alexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 18 more | 56 min |
| Jul 27, 5:25 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Clinton, Franklin, Hardin, Jackson and 15 more | 95 min |
| Aug 4, 1:01 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Champaign, Clark, Coles and 19 more | 2 hr |
| Aug 5, 3:54 PM CDT | Mesoscale Discussion | SPC | Rock Island | 96 min |
| Aug 5, 7:56 PM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Douglas, Edgar, Ford, Iroquois and 7 more | 64 min |
| Aug 6, 2:22 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Grundy, Henry and 10 more | 83 min |
| Aug 7, 1:58 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Fulton, Hancock, Henderson, Henry and 11 more | 2 hr |
| Aug 7, 8:13 PM CDT | Mesoscale Discussion | SPC | Bureau, Cass, DeWitt, Ford, Fulton, Grundy and 27 more | 92 min |
| Aug 8, 12:14 PM CDT | Mesoscale Discussion | SPC | Edgar, Iroquois, Vermilion | 91 min |
| Aug 8, 3:28 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Champaign, Christian, Clark and 23 more | 62 min |
| Aug 8, 6:59 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 29 more | 61 min |
| Aug 8, 9:16 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Christian, DeWitt, Fulton and 16 more | 59 min |
| Aug 12, 1:20 AM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, DuPage, Jo Daviess, Kane and 8 more | 25 min |
| Aug 12, 3:05 AM CDT | Mesoscale Discussion | SPC | Cook, DuPage, Grundy, Kane, Kankakee, Kendall and 2 more | 55 min |
| Aug 12, 8:30 PM CDT | Mesoscale Discussion | SPC | Adams, Hancock | 90 min |
| Aug 13, 12:26 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clark, Clay, Clinton and 23 more | 64 min |
| Aug 14, 1:23 AM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Henry, Jo Daviess and 9 more | 67 min |
| Aug 14, 5:43 AM CDT | Mesoscale Discussion | SPC | Brown, Bureau, Cass, DeWitt, DuPage, Ford and 28 more | 62 min |
| Aug 15, 7:15 AM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Lee, Ogle, Stephenson, Whiteside and 1 more | 60 min |
| Aug 15, 7:50 AM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Jo Daviess, Kane and 9 more | 55 min |
| Aug 15, 12:04 PM CDT | Mesoscale Discussion | SPC | Bureau, Henderson, Henry, Knox, Marshall, Mercer and 8 more | 86 min |
| Aug 15, 9:11 PM CDT | Mesoscale Discussion | SPC | Kendall, Will | 64 min |
| Aug 16, 7:36 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Christian, Fulton, Hancock and 11 more | 54 min |
| Aug 16, 12:49 PM CDT | Mesoscale Discussion | SPC | Crawford, Edwards, Lawrence, Richland, Wabash | 56 min |
| Aug 19, 6:12 AM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, Jo Daviess, Kane, Ogle and 2 more | 93 min |
| Aug 19, 1:20 PM CDT | Mesoscale Discussion | SPC | DeKalb, Henderson, Henry, Jo Daviess, Kendall, Knox and 9 more | 3 hr |
| Aug 19, 6:25 PM CDT | Mesoscale Discussion | SPC | Bond, Brown, Calhoun, Cass, Champaign, Christian and 31 more | 2 hr |
| Aug 21, 2:27 PM CDT | Mesoscale Discussion | SPC | Clark, Clay, Crawford, Edwards, Hamilton, Jasper and 5 more | 3 hr |
| Aug 21, 10:49 PM CDT | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Stephenson, Whiteside | 86 min |
| Aug 22, 2:13 AM CDT | Mesoscale Discussion | SPC | Boone, Jo Daviess, Lake, McHenry, Stephenson, Winnebago | 62 min |
| Aug 22, 4:53 AM CDT | Mesoscale Discussion | SPC | Kankakee, Will | 67 min |
| Aug 22, 3:17 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Ford and 28 more | 2 hr |
| Aug 22, 7:21 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Cook, DeKalb, DuPage, Ford and 25 more | 2 hr |
| Aug 23, 10:36 AM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 33 more | 114 min |
| Aug 23, 3:10 PM CDT | Mesoscale Discussion | SPC | Cook, DuPage, Ford, Grundy, Iroquois, Kane and 7 more | 95 min |
| Aug 23, 5:38 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 25 more | 97 min |
| Aug 23, 11:07 PM CDT | Mesoscale Discussion | SPC | Bureau, Grundy, Henderson, Henry, Kankakee, Kendall and 11 more | 53 min |
| Aug 24, 11:12 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clay, Clinton, Coles and 24 more | 93 min |
| Aug 24, 2:44 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 34 more | 91 min |
| Aug 24, 5:50 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 39 more | 85 min |
| Sep 7, 7:14 AM CDT | Mesoscale Discussion | SPC | Cook, DeKalb, DeWitt, DuPage, Ford, Grundy and 14 more | 2 hr |
| Sep 21, 6:17 PM CDT | Mesoscale Discussion | SPC | Carroll, Henry, Jo Daviess, Mercer, Ogle, Rock Island and 3 more | 88 min |
| Sep 25, 1:36 PM CDT | Mesoscale Discussion | SPC | Cook, DuPage, Ford, Grundy, Iroquois, Kane and 8 more | 84 min |
| Oct 2, 6:16 PM CDT | Mesoscale Discussion | SPC | Mercer | 59 min |
| Oct 2, 8:27 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Greene, Jersey and 8 more | 93 min |
| Oct 17, 4:29 PM CDT | Mesoscale Discussion | SPC | Adams, Calhoun, Jersey, Monroe, Pike | 31 min |
| Oct 17, 7:57 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Fulton, Hancock, Henderson, McDonough and 3 more | 63 min |
| Oct 17, 10:56 PM CDT | Mesoscale Discussion | SPC | Adams, Alexander, Bond, Brown, Calhoun, Cass and 34 more | 64 min |
| Oct 18, 2:02 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clinton, Fayette, Greene and 14 more | 58 min |
| Oct 18, 4:08 AM CDT | Mesoscale Discussion | SPC | Alexander, Champaign, Clark, Clay, Coles, Crawford and 34 more | 67 min |
| Oct 18, 11:36 AM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Kane, McHenry, Ogle, Stephenson and 1 more | 2 hr |
| Oct 18, 1:44 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 23 more | 2 hr |
| Oct 18, 5:39 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hamilton, Hardin, Johnson, Massac and 6 more | 66 min |
| Oct 18, 6:34 PM CDT | Mesoscale Discussion | SPC | Champaign, Clark, Clay, Clinton, Coles, Crawford and 16 more | 116 min |
| Oct 18, 7:51 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 12 more | 84 min |
| Nov 5, 10:04 AM CST | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 2 more | 56 min |
| Nov 21, 3:18 PM CST | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 87 min |
| Nov 21, 5:34 PM CST | Mesoscale Discussion | SPC | Boone, Carroll, Jo Daviess, McHenry, Ogle, Rock Island and 3 more | 4 hr |
| Dec 1, 6:48 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 3 more | 3 hr |
| Dec 1, 7:04 AM CST | Mesoscale Discussion | SPC | Carroll, Henry, Jo Daviess, Knox, Mercer, Peoria and 3 more | 4 hr |
| Dec 1, 12:01 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 33 more | 6 hr |
| Dec 1, 6:21 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 17 more | 5 hr |
| Dec 6, 12:26 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Greene, Hancock and 13 more | 5 hr |
| Dec 6, 6:01 PM CST | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clark, Clay, Clinton and 36 more | 5 hr |
| Dec 8, 12:07 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 18 more | 4 hr |
| Dec 8, 11:27 PM CST | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 34 more | 6 hr |
| Dec 9, 5:41 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 27 more | 5 hr |
| Dec 9, 12:11 PM CST | Mesoscale Discussion | SPC | Ford, Iroquois, Kankakee | 4 hr |
| Dec 10, 6:36 AM CST | Mesoscale Discussion | SPC | Jersey, Monroe | 5 hr |
| Dec 10, 11:15 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 29 more | 6 hr |
| Dec 11, 5:56 AM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 22 more | 6 hr |
| Dec 11, 11:47 AM CST | Mesoscale Discussion | SPC | Boone, Carroll, Jo Daviess, Ogle, Rock Island, Stephenson and 2 more | 3 hr |
| Dec 14, 11:33 PM CST | Mesoscale Discussion | SPC | Bond, Calhoun, Clinton, Jersey, Macoupin, Madison and 7 more | 4 hr |
| Dec 15, 6:29 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Cass, Champaign and 44 more | 6 hr |
| Dec 15, 11:52 PM CST | Mesoscale Discussion | SPC | Champaign, Clark, Coles, Crawford, Cumberland, Douglas and 9 more | 5 hr |
| Dec 22, 6:46 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Carroll, Fulton, Hancock, Henderson and 12 more | 4 hr |
| Dec 23, 12:37 AM CST | Mesoscale Discussion | SPC | Jo Daviess | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jo Daviess County49
- Ogle County48
- Carroll County47
- Stephenson County47
- Knox County45
- Tazewell County45
- Rock Island County45
- Winnebago County44
- Henry County44
- Whiteside County44
- Ford County43
- Peoria County43
- Boone County43
- Lee County43
- Stark County42
- Fulton County41
- McDonough County41
- Schuyler County41
- Warren County40
- Woodford County40
- Bureau County40
- DeKalb County40
- Kane County40
- Iroquois County39
- Kankakee County39
- Marshall County39
- Piatt County39
- Mercer County39
- Pike County38
- Adams County38
- Brown County38
- Cass County38
- Logan County38
- Menard County38
- Putnam County38
- Kendall County38
- Henderson County38
- Will County37
- Jersey County37
- Livingston County37
62 more counties
- McLean County37
- Mason County37
- Champaign County37
- Edgar County36
- Calhoun County36
- DeWitt County36
- Greene County36
- Morgan County36
- Moultrie County36
- McHenry County36
- Vermilion County35
- Grundy County35
- Coles County35
- Douglas County35
- Macon County34
- Macoupin County34
- Scott County34
- LaSalle County34
- Madison County33
- Cumberland County33
- Hancock County32
- Clark County32
- Bond County31
- Christian County31
- Montgomery County31
- Sangamon County31
- Shelby County31
- DuPage County29
- Jasper County29
- Monroe County29
- Crawford County28
- Clay County28
- Effingham County28
- Saint Clair County28
- Richland County27
- Marion County27
- Clinton County27
- Jefferson County27
- Fayette County26
- Cook County25
- Lawrence County25
- Randolph County25
- Washington County25
- Wayne County25
- Lake County24
- Massac County23
- Pulaski County23
- Perry County23
- Alexander County22
- Union County22
- Johnson County22
- Williamson County22
- Edwards County22
- Franklin County22
- Hamilton County22
- Wabash County22
- White County22
- Pope County21
- Jackson County21
- Hardin County20
- Saline County20
- Gallatin County19
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20062008
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.