Alert archive / Illinois / Mesoscale Discussions
Mesoscale Discussions in Illinois, 2009
190 mesoscale discussions in 2009. 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 2009. Tap one for its archive.
- Mesoscale Discussions
- 190
- Busiest month
- June63 mesoscale discussions
- Busiest day
- June 19, 20097 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 |
|---|---|---|---|---|
| Jan 6, 12:06 AM CST | Mesoscale Discussion | SPC | Alexander, Clay, Edwards, Franklin, Gallatin, Hamilton and 19 more | 4 hr |
| Jan 9, 11:53 PM CST | Mesoscale Discussion | SPC | Ford, Iroquois | 6 hr |
| Jan 12, 6:27 PM CST | Mesoscale Discussion | SPC | Carroll, Henry, Jo Daviess, Mercer, Rock Island, Stephenson and 1 more | 4 hr |
| Jan 13, 6:12 PM CST | Mesoscale Discussion | SPC | Henderson, Mercer, Rock Island | 4 hr |
| Jan 13, 11:38 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cass, Champaign, Christian and 46 more | 4 hr |
| Jan 26, 6:59 PM CST | Mesoscale Discussion | SPC | Alexander, Clay, Clinton, Edwards, Franklin, Gallatin and 23 more | 5 hr |
| Jan 26, 11:44 PM CST | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more | 5 hr |
| Jan 27, 6:06 AM CST | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 3 more | 5 hr |
| Jan 27, 11:25 AM CST | Mesoscale Discussion | SPC | Edwards, Franklin, Gallatin, Hamilton, Hardin, Johnson and 7 more | 4 hr |
| Jan 27, 6:25 PM CST | Mesoscale Discussion | SPC | Alexander, Bond, Calhoun, Clark, Clay, Clinton and 38 more | 6 hr |
| Jan 27, 11:31 PM CST | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 11 more | 5 hr |
| Feb 11, 2:30 AM CST | Mesoscale Discussion | SPC | Alexander, Monroe, Randolph | 90 min |
| Feb 11, 5:26 AM CST | Mesoscale Discussion | SPC | Alexander, Franklin, Jackson, Johnson, Massac, Pope and 4 more | 64 min |
| Feb 20, 11:57 PM CST | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, DuPage, Jo Daviess, Kane and 6 more | 5 hr |
| Feb 26, 6:57 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Greene, Hancock and 8 more | 93 min |
| Feb 26, 9:26 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Fulton, Greene and 17 more | 2 hr |
| Feb 26, 7:42 PM CST | Mesoscale Discussion | SPC | Alexander, Bond, Calhoun, Christian, Clay, Clinton and 26 more | 93 min |
| Feb 26, 10:36 PM CST | Mesoscale Discussion | SPC | Alexander, Randolph | 114 min |
| Feb 28, 11:47 AM CST | Mesoscale Discussion | SPC | Alexander | 4 hr |
| Mar 7, 10:26 PM CST | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Logan and 7 more | 2 hr |
| Mar 8, 9:26 AM CDT | Mesoscale Discussion | SPC | Bond, Brown, Calhoun, Cass, Christian, Clinton and 32 more | 64 min |
| Mar 8, 11:35 AM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clay, Clinton, Coles and 27 more | 115 min |
| Mar 10, 3:15 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 24 more | 2 hr |
| Mar 10, 7:31 PM CDT | Mesoscale Discussion | SPC | Alexander, Clark, Clay, Clinton, Coles, Crawford and 30 more | 119 min |
| Mar 18, 2:22 PM CDT | Mesoscale Discussion | SPC | Bond, Clark, Clay, Clinton, Coles, Crawford and 27 more | 113 min |
| Mar 24, 5:36 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more | 54 min |
| Mar 24, 10:28 PM CDT | Mesoscale Discussion | SPC | Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 4 more | 92 min |
| Mar 28, 12:58 PM CDT | Mesoscale Discussion | SPC | Gallatin, Hardin, Pope, Saline | 92 min |
| Mar 29, 3:42 AM CDT | Mesoscale Discussion | SPC | Boone, DeKalb, Kane, LaSalle, McHenry, Marshall and 1 more | 4 hr |
| Mar 31, 6:00 PM CDT | Mesoscale Discussion | SPC | DuPage, Kane, Kankakee, McHenry, Will | 60 min |
| Apr 2, 2:04 PM CDT | Mesoscale Discussion | SPC | Gallatin, Hardin, Pope, Saline, Wabash, White | 116 min |
| Apr 5, 10:50 AM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Bureau, Cass, Champaign, Christian and 67 more | 115 min |
| Apr 5, 2:02 PM CDT | Mesoscale Discussion | SPC | Edwards, Gallatin, Hardin, Johnson, Lawrence, Massac and 4 more | 88 min |
| Apr 6, 1:04 AM CDT | Mesoscale Discussion | SPC | Kankakee | 4 hr |
| Apr 10, 12:50 AM CDT | Mesoscale Discussion | SPC | Alexander, Clay, Edwards, Franklin, Gallatin, Hamilton and 19 more | 85 min |
| Apr 10, 1:26 PM CDT | Mesoscale Discussion | SPC | Gallatin, Hardin, Pope, Saline, White | 64 min |
| Apr 19, 12:14 PM CDT | Mesoscale Discussion | SPC | Alexander, Pulaski, Union | 61 min |
| Apr 19, 2:22 PM CDT | Mesoscale Discussion | SPC | Alexander | 53 min |
| Apr 19, 3:49 PM CDT | Mesoscale Discussion | SPC | Alexander | 56 min |
| Apr 19, 5:47 PM CDT | Mesoscale Discussion | SPC | Massac, Pope, Pulaski | 58 min |
| Apr 23, 7:08 PM CDT | Mesoscale Discussion | SPC | Fulton, Knox, McDonough, Warren | 97 min |
| Apr 25, 1:55 PM CDT | Mesoscale Discussion | SPC | Cook, Will | 95 min |
| Apr 25, 5:32 PM CDT | Mesoscale Discussion | SPC | Adams, Boone, Brown, Bureau, Carroll, Cass and 40 more | 73 min |
| Apr 25, 9:23 PM CDT | Mesoscale Discussion | SPC | Hancock, Henderson, Knox, McDonough, Mercer, Warren | 67 min |
| Apr 26, 2:00 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, Jo Daviess, Kane, Lee and 4 more | 60 min |
| Apr 26, 5:14 PM CDT | Mesoscale Discussion | SPC | Jo Daviess, Stephenson | 61 min |
| Apr 27, 5:08 PM CDT | Mesoscale Discussion | SPC | Alexander, Jackson, Johnson, Pulaski, Union, Williamson | 97 min |
| Apr 27, 5:34 PM CDT | Mesoscale Discussion | SPC | Brown, Cass, Fulton, Greene, Logan, Mason and 7 more | 56 min |
| May 7, 5:42 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Pike, Scott | 2 hr |
| May 7, 5:56 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Champaign, Christian, Clark and 29 more | 64 min |
| May 7, 9:38 PM CDT | Mesoscale Discussion | SPC | Clinton, Franklin, Gallatin, Hamilton, Jackson, Jefferson and 13 more | 97 min |
| May 7, 11:46 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Clark, Clay, Clinton, Coles and 33 more | 89 min |
| May 8, 3:34 AM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 56 min |
| May 8, 8:37 AM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 53 min |
| May 8, 2:16 PM CDT | Mesoscale Discussion | SPC | Edwards, Franklin, Gallatin, Hamilton, Jefferson, Saline and 3 more | 89 min |
| May 8, 5:47 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Henderson, Henry, Jo Daviess and 9 more | 58 min |
| May 8, 8:35 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Champaign, DeKalb, DeWitt and 31 more | 85 min |
| May 13, 9:27 AM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 54 more | 63 min |
| May 13, 1:15 PM CDT | Mesoscale Discussion | SPC | Bond, Clinton, Franklin, Jackson, Jefferson, Macoupin and 7 more | 30 min |
| May 13, 1:52 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Greene, Hancock, Jersey and 3 more | 23 min |
| May 13, 5:47 PM CDT | Mesoscale Discussion | SPC | Adams, Boone, Brown, Bureau, Carroll, Cass and 50 more | 88 min |
| May 13, 6:05 PM CDT | Mesoscale Discussion | SPC | Clark, Clay, Crawford, Edwards, Effingham, Franklin and 17 more | 85 min |
| May 13, 7:05 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Greene, Hancock and 15 more | 85 min |
| May 13, 8:35 PM CDT | Mesoscale Discussion | SPC | Adams, Boone, Brown, Bureau, Carroll, Cass and 47 more | 85 min |
| May 13, 10:17 PM CDT | Mesoscale Discussion | SPC | Champaign, Cook, DeKalb, DeWitt, Douglas, DuPage and 23 more | 58 min |
| May 13, 11:27 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Calhoun, Clark, Clay, Clinton and 36 more | 93 min |
| May 15, 2:05 PM CDT | Mesoscale Discussion | SPC | Cass, Champaign, Christian, Coles, Cumberland, DeWitt and 23 more | 25 min |
| May 15, 3:43 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Pike | 62 min |
| May 15, 5:31 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 39 more | 119 min |
| May 15, 8:14 PM CDT | Mesoscale Discussion | SPC | Bond, Champaign, Clark, Clay, Clinton, Coles and 21 more | 2 hr |
| May 25, 12:32 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Clark, Clay, Clinton, Cumberland and 21 more | 88 min |
| May 27, 1:49 PM CDT | Mesoscale Discussion | SPC | Alexander, Clark, Clay, Crawford, Edwards, Franklin and 20 more | 116 min |
| May 29, 3:17 PM CDT | Mesoscale Discussion | SPC | Brown, Calhoun, Cass, Champaign, Christian, Coles and 22 more | 88 min |
| May 30, 2:44 PM CDT | Mesoscale Discussion | SPC | Cass, Champaign, Christian, Coles, Cumberland, DeWitt and 16 more | 91 min |
| May 30, 6:01 PM CDT | Mesoscale Discussion | SPC | Bond, Cass, Champaign, Christian, Clark, Clay and 40 more | 59 min |
| May 30, 8:53 PM CDT | Mesoscale Discussion | SPC | Bond, Clark, Clay, Clinton, Coles, Crawford and 16 more | 67 min |
| Jun 1, 1:31 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Cook, DeKalb, DuPage, Ford and 15 more | 59 min |
| Jun 1, 6:34 PM CDT | Mesoscale Discussion | SPC | Bureau, DuPage, Ford, Grundy, Iroquois, Kankakee and 13 more | 86 min |
| Jun 1, 8:57 PM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Ford, Fulton, Iroquois, McDonough and 6 more | 63 min |
| Jun 2, 11:58 AM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clark, Clay, Clinton and 40 more | 92 min |
| Jun 2, 3:47 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 34 more | 88 min |
| Jun 2, 6:22 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Christian and 32 more | 83 min |
| Jun 7, 4:45 AM CDT | Mesoscale Discussion | SPC | Hancock | 30 min |
| Jun 8, 3:25 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Hancock, Henderson, McDonough, Mercer and 2 more | 65 min |
| Jun 8, 8:49 AM CDT | Mesoscale Discussion | SPC | Bond, Clark, Clay, Clinton, Coles, Crawford and 26 more | 86 min |
| Jun 8, 11:54 AM CDT | Mesoscale Discussion | SPC | Bond, Boone, Brown, Bureau, Calhoun, Cass and 43 more | 96 min |
| Jun 8, 3:20 PM CDT | Mesoscale Discussion | SPC | Bond, Clinton, Franklin, Jackson, Jefferson, Jersey and 9 more | 85 min |
| Jun 8, 3:53 PM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Grundy, Iroquois and 11 more | 67 min |
| Jun 8, 5:46 PM CDT | Mesoscale Discussion | SPC | Lake | 59 min |
| Jun 8, 7:18 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Hamilton, Jackson, Johnson, Perry and 6 more | 57 min |
| Jun 8, 9:35 PM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Jackson, Johnson, Massac, Pope and 4 more | 55 min |
| Jun 9, 3:04 PM CDT | Mesoscale Discussion | SPC | Alexander, Jackson, Johnson, Massac, Pulaski, Union | 86 min |
| Jun 10, 5:20 AM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Jackson, Johnson, Massac, Pope and 3 more | 55 min |
| Jun 10, 3:13 PM CDT | Mesoscale Discussion | SPC | Bond, Clark, Clay, Clinton, Crawford, Cumberland and 17 more | 92 min |
| Jun 10, 7:10 PM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Calhoun, Clay, Clinton, Effingham and 25 more | 65 min |
| Jun 10, 8:58 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clark, Clay, Clinton and 36 more | 62 min |
| Jun 11, 1:00 PM CDT | Mesoscale Discussion | SPC | Bond, Clay, Effingham, Fayette, Macoupin, Montgomery | 60 min |
| Jun 11, 3:07 PM CDT | Mesoscale Discussion | SPC | Clark, Clay, Crawford, Edgar, Edwards, Effingham and 10 more | 53 min |
| Jun 11, 3:42 PM CDT | Mesoscale Discussion | SPC | Clark, Clay, Crawford, Edgar, Edwards, Effingham and 10 more | 33 min |
| Jun 11, 6:02 PM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Massac, Pope, Pulaski | 58 min |
| Jun 14, 6:05 PM CDT | Mesoscale Discussion | SPC | Hardin | 55 min |
| Jun 15, 6:24 AM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski, Union | 96 min |
| Jun 15, 9:59 AM CDT | Mesoscale Discussion | SPC | Alexander, Pulaski | 31 min |
| Jun 15, 1:56 PM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski, Union | 64 min |
| Jun 16, 3:53 AM CDT | Mesoscale Discussion | SPC | Bond, Clinton, Franklin, Jackson, Jefferson, Jersey and 12 more | 67 min |
| Jun 16, 9:38 AM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 3 more | 67 min |
| Jun 16, 1:10 PM CDT | Mesoscale Discussion | SPC | Edwards, Gallatin, Wabash, Wayne, White | 35 min |
| Jun 17, 3:07 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 14 more | 23 min |
| Jun 17, 6:42 PM CDT | Mesoscale Discussion | SPC | Calhoun, Monroe | 2 hr |
| Jun 18, 1:01 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Fulton, Greene and 11 more | 89 min |
| Jun 18, 3:20 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Christian, DeWitt, Douglas and 27 more | 85 min |
| Jun 18, 6:09 AM CDT | Mesoscale Discussion | SPC | Clark, Clay, Coles, Crawford, Cumberland, Edgar and 15 more | 2 hr |
| Jun 18, 9:42 AM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Henderson, Henry, Knox, LaSalle and 9 more | 93 min |
| Jun 18, 1:17 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Fulton, Henderson, Henry, Knox and 17 more | 88 min |
| Jun 18, 8:23 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, Jo Daviess, Lee, McHenry and 4 more | 97 min |
| Jun 18, 11:07 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Grundy and 11 more | 53 min |
| Jun 19, 2:38 AM CDT | Mesoscale Discussion | SPC | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 9 more | 97 min |
| Jun 19, 6:58 AM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, DeKalb, Henry, Jo Daviess, Kendall and 6 more | 62 min |
| Jun 19, 10:57 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Hancock, McDonough, Schuyler | 93 min |
| Jun 19, 1:54 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Grundy and 24 more | 96 min |
| Jun 19, 5:37 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Calhoun, Carroll, Cass and 54 more | 53 min |
| Jun 19, 7:10 PM CDT | Mesoscale Discussion | SPC | Boone, McHenry | 95 min |
| Jun 19, 7:48 PM CDT | Mesoscale Discussion | SPC | Bond, Clinton, Madison, Monroe, Perry, Randolph and 2 more | 87 min |
| Jun 19, 7:59 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 39 more | 91 min |
| Jun 19, 9:45 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Christian, Clark, Clay, Coles and 16 more | 30 min |
| Jun 20, 1:07 AM CDT | Mesoscale Discussion | SPC | Clay, Clinton, Crawford, Edwards, Franklin, Gallatin and 18 more | 53 min |
| Jun 21, 2:23 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Clark, Coles, Crawford, Cumberland and 16 more | 97 min |
| Jun 21, 6:14 PM CDT | Mesoscale Discussion | SPC | Clay, Crawford, Edwards, Jasper, Lawrence, Richland and 2 more | 91 min |
| Jun 22, 6:25 PM CDT | Mesoscale Discussion | SPC | Clay, Edwards, Jasper, Richland, Wabash, Wayne and 1 more | 65 min |
| Jun 23, 5:32 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 8 more | 58 min |
| Jun 25, 12:14 PM CDT | Mesoscale Discussion | SPC | Brown, Bureau, Carroll, Cass, Fulton, Hancock and 18 more | 61 min |
| Jun 25, 2:56 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Fulton, Henderson, Henry, Jo Daviess and 15 more | 64 min |
| Jun 25, 5:36 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Fulton, Hancock, Henderson, Henry and 13 more | 84 min |
| Jun 26, 2:34 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more | 86 min |
| Jun 27, 1:19 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Henderson, Henry, Jo Daviess and 11 more | 56 min |
| Jun 27, 5:43 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Schuyler | 62 min |
| Jun 27, 6:22 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Fulton, Grundy and 24 more | 113 min |
| Jun 27, 7:39 PM CDT | Mesoscale Discussion | SPC | Adams, Pike | 2 hr |
| Jun 27, 9:16 PM CDT | Mesoscale Discussion | SPC | Cass, Champaign, Christian, Coles, DeWitt, Douglas and 14 more | 59 min |
| Jul 4, 11:52 AM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 53 min |
| Jul 4, 5:27 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more | 63 min |
| Jul 8, 3:42 PM CDT | Mesoscale Discussion | SPC | Cass, Christian, Clay, Coles, Crawford, Cumberland and 29 more | 93 min |
| Jul 10, 1:36 AM CDT | Mesoscale Discussion | SPC | Jo Daviess | 24 min |
| Jul 11, 2:31 AM CDT | Mesoscale Discussion | SPC | Boone, Cook, Kane, Lake, McHenry, Ogle and 2 more | 29 min |
| Jul 11, 6:20 PM CDT | Mesoscale Discussion | SPC | Alexander, Jackson, Johnson, Massac, Pulaski, Union | 115 min |
| Jul 12, 10:28 AM CDT | Mesoscale Discussion | SPC | Monroe | 92 min |
| Jul 12, 1:05 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more | 85 min |
| Jul 15, 12:50 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Hancock, Henderson, McDonough, Pike and 2 more | 85 min |
| Jul 15, 2:33 AM CDT | Mesoscale Discussion | SPC | Cass, Champaign, Christian, Coles, Cumberland, DeWitt and 12 more | 2 hr |
| Jul 15, 5:36 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Jackson, Johnson, Massac, Perry and 6 more | 54 min |
| Jul 16, 4:59 PM CDT | Mesoscale Discussion | SPC | Alexander, Jackson, Johnson, Massac, Pope, Pulaski and 3 more | 61 min |
| Jul 16, 11:02 PM CDT | Mesoscale Discussion | SPC | Clay, Edwards, Jefferson, Lawrence, Marion, Richland and 3 more | 88 min |
| Jul 23, 11:53 AM CDT | Mesoscale Discussion | SPC | Boone, DeKalb, DuPage, Kane, McHenry, Winnebago | 97 min |
| Jul 24, 9:51 AM CDT | Mesoscale Discussion | SPC | Jo Daviess | 54 min |
| Jul 24, 3:52 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, DeKalb, Henderson, Henry, Jo Daviess and 15 more | 83 min |
| Jul 24, 7:20 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, DeKalb, Henderson, Henry, Jo Daviess and 16 more | 85 min |
| Jul 24, 9:22 PM CDT | Mesoscale Discussion | SPC | Bureau, DeWitt, Fulton, Hancock, Henderson, Henry and 18 more | 53 min |
| Jul 24, 11:46 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Champaign, Christian, Clark and 26 more | 89 min |
| Jul 25, 3:09 AM CDT | Mesoscale Discussion | SPC | Edwards, Franklin, Gallatin, Hamilton, Hardin, Johnson and 8 more | 96 min |
| Jul 30, 4:51 PM CDT | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, Kane, Lake, Lee and 4 more | 114 min |
| Aug 3, 4:06 PM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Calhoun, Cass, Greene and 10 more | 84 min |
| Aug 4, 7:11 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calhoun, Cass, Fulton, Greene and 8 more | 94 min |
| Aug 4, 2:36 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 84 min |
| Aug 4, 6:21 PM CDT | Mesoscale Discussion | SPC | Alexander, Johnson, Massac, Pope, Pulaski, Union | 114 min |
| Aug 4, 8:35 PM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski, Union | 85 min |
| Aug 8, 1:29 AM CDT | Mesoscale Discussion | SPC | Jo Daviess | 2 hr |
| Aug 9, 9:55 AM CDT | Mesoscale Discussion | SPC | Boone, Carroll, Henry, Jo Daviess, Lee, Mercer and 5 more | 35 min |
| Aug 9, 8:30 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Henderson, Henry and 15 more | 90 min |
| Aug 9, 10:55 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Cook, DeKalb, DuPage, Kane and 8 more | 95 min |
| Aug 10, 5:58 PM CDT | Mesoscale Discussion | SPC | Gallatin, Hardin, Johnson, Pope, Saline, Williamson | 2 hr |
| Aug 17, 1:22 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Bureau, Fulton, Hancock, Henderson and 11 more | 83 min |
| Aug 19, 11:51 AM CDT | Mesoscale Discussion | SPC | Adams, Bond, Brown, Bureau, Calhoun, Cass and 45 more | 114 min |
| Aug 19, 3:19 PM CDT | Mesoscale Discussion | SPC | Champaign, Christian, Clark, Coles, Cumberland, DeWitt and 22 more | 86 min |
| Aug 19, 7:45 PM CDT | Mesoscale Discussion | SPC | Bureau, Carroll, Henry, Jo Daviess, Mercer, Putnam and 3 more | 90 min |
| Aug 20, 2:18 AM CDT | Mesoscale Discussion | SPC | Clinton, Jackson, Monroe, Perry, Randolph, Saint Clair and 2 more | 87 min |
| Aug 20, 1:51 PM CDT | Mesoscale Discussion | SPC | Jo Daviess | 114 min |
| Aug 27, 10:31 PM CDT | Mesoscale Discussion | SPC | Champaign, Douglas, Edgar, McLean, Piatt, Vermilion | 89 min |
| Sep 26, 1:42 PM CDT | Mesoscale Discussion | SPC | Adams, Alexander, Bond, Brown, Calhoun, Cass and 63 more | 93 min |
| Sep 26, 5:23 PM CDT | Mesoscale Discussion | SPC | Hardin, Massac | 97 min |
| Sep 27, 5:32 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Champaign, Cook, DeKalb and 39 more | 88 min |
| Sep 27, 11:04 PM CDT | Mesoscale Discussion | SPC | Champaign, DeWitt, Douglas, Edgar, Ford, Iroquois and 6 more | 86 min |
| Oct 8, 5:26 PM CDT | Mesoscale Discussion | SPC | Bond, Calhoun, Clay, Clinton, Cumberland, Edwards and 19 more | 2 hr |
| Oct 8, 7:35 PM CDT | Mesoscale Discussion | SPC | Alexander, Massac, Pulaski | 55 min |
| Oct 8, 11:06 PM CDT | Mesoscale Discussion | SPC | Alexander, Hardin, Massac, Pope, Pulaski | 84 min |
| Dec 8, 11:22 AM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, DuPage, Hancock and 21 more | 5 hr |
| Dec 8, 6:00 PM CST | Mesoscale Discussion | SPC | Carroll, Jo Daviess, Stephenson, Winnebago | 5 hr |
| Dec 9, 10:22 AM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Henderson, Henry and 11 more | 4 hr |
| Dec 23, 6:44 AM CST | Mesoscale Discussion | SPC | Bureau, LaSalle, Lee, Rock Island, Whiteside | 4 hr |
| Dec 23, 12:21 PM CST | Mesoscale Discussion | SPC | Boone, Carroll, DeKalb, Jo Daviess, Kane, Lee and 5 more | 4 hr |
| Dec 23, 6:41 PM CST | Mesoscale Discussion | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 9 more | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Alexander County48
- Union County45
- Pulaski County44
- Massac County43
- Jackson County42
- Marion County41
- Saline County41
- Clay County40
- Jefferson County40
- Johnson County40
- Wayne County40
- Franklin County39
- White County39
- Shelby County39
- Gallatin County38
- Williamson County38
- Edwards County37
- Perry County37
- Pope County37
- Wabash County37
- Jasper County37
- Effingham County37
- Hamilton County36
- Hardin County36
- Richland County36
- Washington County36
- Douglas County36
- Warren County36
- Cumberland County36
- Montgomery County36
- Randolph County35
- Henderson County35
- Cass County35
- Fulton County35
- Sangamon County35
- Tazewell County35
- Coles County35
- Moultrie County35
- Brown County35
- Morgan County35
62 more counties
- Lawrence County34
- Carroll County34
- Mercer County34
- Lee County34
- Menard County34
- Piatt County34
- Bond County34
- Macoupin County34
- Scott County34
- Rock Island County33
- DeWitt County33
- Knox County33
- Logan County33
- McDonough County33
- Macon County33
- Peoria County33
- Schuyler County33
- Clinton County33
- Fayette County33
- Pike County33
- Jo Daviess County32
- Stephenson County32
- Whiteside County32
- Bureau County32
- Mason County32
- Madison County32
- Henry County31
- Christian County31
- DeKalb County31
- Hancock County31
- McLean County31
- Ogle County31
- Edgar County31
- Adams County31
- Boone County30
- Champaign County30
- Stark County30
- Clark County30
- LaSalle County29
- Marshall County29
- Winnebago County29
- Crawford County29
- Jersey County29
- Greene County29
- Kane County28
- McHenry County28
- Putnam County28
- Saint Clair County28
- Calhoun County28
- Monroe County27
- Woodford County26
- Ford County23
- Kendall County23
- Iroquois County22
- DuPage County22
- Kankakee County22
- Will County21
- Livingston County20
- Vermilion County20
- Grundy County19
- Lake County16
- Cook County14
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.