Alert archive / Illinois / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Illinois, 1990
223 severe thunderstorm warnings in 1990. 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 1990. Tap one for its archive.
- Severe Thunderstorm Warnings
- 223
- Busiest month
- June90 severe thunderstorm warnings
- Busiest day
- August 29, 199021 severe thunderstorm warnings
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 |
|---|---|---|---|---|
| Mar 8, 4:02 PM CST | Severe Thunderstorm Warning | ILX | Fulton, Mason | 43 min |
| Mar 8, 5:03 PM CST | Severe Thunderstorm Warning | ILX | Fulton, McDonough | 32 min |
| Mar 8, 5:31 PM CST | Severe Thunderstorm Warning | LSX | Greene | 29 min |
| Mar 10, 12:17 AM CST | Severe Thunderstorm Warning | DVN | Rock Island | 43 min |
| Mar 10, 1:02 AM CST | Severe Thunderstorm Warning | DVN | Rock Island | 43 min |
| Mar 10, 8:31 AM CST | Severe Thunderstorm Warning | DVN | Rock Island | 29 min |
| Mar 10, 12:00 PM CST | Severe Thunderstorm Warning | ILX | Peoria | 30 min |
| Mar 10, 4:47 PM CST | Severe Thunderstorm Warning | LSX | Adams | 43 min |
| Mar 10, 4:54 PM CST | Severe Thunderstorm Warning | ILX | Hancock, McDonough, Schuyler | 51 min |
| Mar 11, 10:25 PM CST | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 50 min |
| Mar 11, 10:25 PM CST | Severe Thunderstorm Warning | LSX | Madison | 50 min |
| Mar 13, 10:09 AM CST | Severe Thunderstorm Warning | ILX | Carroll, Ogle | 46 min |
| Mar 13, 12:29 PM CST | Severe Thunderstorm Warning | LOT | Grundy, Will | 61 min |
| Mar 13, 2:02 PM CST | Severe Thunderstorm Warning | ILX | Carroll | 43 min |
| Mar 13, 2:30 PM CST | Severe Thunderstorm Warning | ILX | Stephenson | 30 min |
| Mar 13, 3:24 PM CST | Severe Thunderstorm Warning | LOT | McHenry | 36 min |
| Mar 13, 3:29 PM CST | Severe Thunderstorm Warning | ILX | Stephenson, Winnebago | 31 min |
| Mar 13, 3:45 PM CST | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 45 min |
| Mar 13, 3:51 PM CST | Severe Thunderstorm Warning | ILX | Stephenson | 34 min |
| Apr 27, 3:37 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 53 min |
| Apr 27, 4:43 PM CDT | Severe Thunderstorm Warning | ILX | Carroll | 32 min |
| Apr 27, 5:02 PM CDT | Severe Thunderstorm Warning | ILX | Stephenson | 28 min |
| Apr 27, 5:22 PM CDT | Severe Thunderstorm Warning | ILX | Menard, Sangamon | 38 min |
| Apr 27, 5:28 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell | 62 min |
| Apr 27, 5:28 PM CDT | Severe Thunderstorm Warning | ILX | Mason | 47 min |
| Apr 27, 5:35 PM CDT | Severe Thunderstorm Warning | ILX | Ogle, Winnebago | 25 min |
| Apr 27, 6:01 PM CDT | Severe Thunderstorm Warning | ILX | Knox, Peoria | 39 min |
| Apr 30, 8:18 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 42 min |
| May 9, 7:50 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Jackson, Williamson | 40 min |
| May 9, 8:46 PM CDT | Severe Thunderstorm Warning | IND | Edwards, Wayne, White | 29 min |
| May 9, 9:10 PM CDT | Severe Thunderstorm Warning | IND | Lawrence, Richland, Wabash | 50 min |
| May 12, 4:41 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 49 min |
| May 12, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 48 min |
| May 12, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 48 min |
| May 12, 6:13 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette | 47 min |
| May 12, 6:44 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Montgomery, Sangamon | 13 min |
| May 12, 6:50 PM CDT | Severe Thunderstorm Warning | LSX | Effingham | 40 min |
| May 12, 7:56 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Coles, Cumberland | 34 min |
| May 12, 7:56 PM CDT | Severe Thunderstorm Warning | ILX | Edgar | 34 min |
| May 15, 1:20 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Marion | 40 min |
| May 15, 3:54 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey | 51 min |
| May 15, 4:45 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 45 min |
| May 15, 5:06 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin, Montgomery | 69 min |
| May 15, 5:06 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 54 min |
| May 15, 5:54 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 36 min |
| May 15, 6:07 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 53 min |
| May 15, 6:16 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Montgomery, Shelby | 59 min |
| May 15, 6:22 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Washington | 38 min |
| May 15, 6:22 PM CDT | Severe Thunderstorm Warning | LSX | Bond | 38 min |
| May 15, 6:22 PM CDT | Severe Thunderstorm Warning | LSX | Randolph, Saint Clair | 68 min |
| May 15, 6:45 PM CDT | Severe Thunderstorm Warning | LSX | Effingham, Fayette | 45 min |
| May 15, 6:49 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 41 min |
| May 15, 6:57 PM CDT | Severe Thunderstorm Warning | LSX | Randolph, Washington | 63 min |
| May 15, 7:30 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Marion | 60 min |
| May 15, 8:55 PM CDT | Severe Thunderstorm Warning | IND | Lawrence, Wabash | 50 min |
| May 15, 11:03 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 42 min |
| May 15, 11:35 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Sangamon | 40 min |
| May 16, 12:13 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Scott | 47 min |
| May 16, 12:13 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 47 min |
| May 16, 12:49 AM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 56 min |
| May 16, 1:12 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Sangamon | 48 min |
| May 16, 1:14 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey, Madison | 46 min |
| May 16, 3:28 AM CDT | Severe Thunderstorm Warning | IND | Crawford | 32 min |
| May 16, 5:39 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 51 min |
| May 16, 5:52 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Washington | 53 min |
| May 16, 6:07 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 53 min |
| May 16, 6:39 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Perry | 51 min |
| May 16, 7:25 PM CDT | Severe Thunderstorm Warning | PAH | Hamilton, Saline | 35 min |
| May 16, 7:25 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Williamson | 35 min |
| May 16, 7:41 PM CDT | Severe Thunderstorm Warning | IND | White | 49 min |
| May 25, 10:28 AM CDT | Severe Thunderstorm Warning | PAH | Franklin, Jackson | 62 min |
| May 25, 7:06 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 39 min |
| May 25, 10:59 PM CDT | Severe Thunderstorm Warning | ILX | Montgomery | 24 min |
| Jun 2, 4:01 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Montgomery, Shelby | 59 min |
| Jun 2, 5:16 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 29 min |
| Jun 2, 5:25 PM CDT | Severe Thunderstorm Warning | PAH | Hamilton | 50 min |
| Jun 2, 5:36 PM CDT | Severe Thunderstorm Warning | IND | Wayne | 39 min |
| Jun 2, 5:58 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Cumberland, Edgar | 62 min |
| Jun 2, 6:33 PM CDT | Severe Thunderstorm Warning | IND | Lawrence, Wabash | 42 min |
| Jun 3, 5:18 PM CDT | Severe Thunderstorm Warning | PAH | Franklin | 42 min |
| Jun 5, 6:56 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin | 64 min |
| Jun 5, 7:47 PM CDT | Severe Thunderstorm Warning | ILX | Montgomery | 43 min |
| Jun 6, 12:45 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 30 min |
| Jun 6, 1:42 PM CDT | Severe Thunderstorm Warning | IND | Gallatin | 63 min |
| Jun 7, 1:20 AM CDT | Severe Thunderstorm Warning | LSX | Effingham, Fayette | 40 min |
| Jun 7, 6:26 AM CDT | Severe Thunderstorm Warning | LSX | Saint Clair, Washington | 64 min |
| Jun 7, 6:43 AM CDT | Severe Thunderstorm Warning | LSX | Perry, Randolph | 47 min |
| Jun 7, 3:40 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 65 min |
| Jun 7, 4:19 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 56 min |
| Jun 7, 4:19 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 41 min |
| Jun 7, 4:19 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 41 min |
| Jun 7, 4:33 PM CDT | Severe Thunderstorm Warning | PAH | Franklin | 42 min |
| Jun 7, 4:54 PM CDT | Severe Thunderstorm Warning | LSX | Bond | 36 min |
| Jun 7, 5:09 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 41 min |
| Jun 7, 6:05 PM CDT | Severe Thunderstorm Warning | IND | Richland, Wayne | 25 min |
| Jun 7, 9:57 PM CDT | Severe Thunderstorm Warning | ILX | McDonough | 63 min |
| Jun 7, 11:00 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan | 60 min |
| Jun 7, 11:28 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 32 min |
| Jun 13, 11:54 AM CDT | Severe Thunderstorm Warning | ILX | Carroll, Ogle, Stephenson | 36 min |
| Jun 13, 12:38 PM CDT | Severe Thunderstorm Warning | ILX | Ogle, Winnebago | 37 min |
| Jun 13, 2:04 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Kane, McHenry | 41 min |
| Jun 13, 2:04 PM CDT | Severe Thunderstorm Warning | LOT | Lake | 41 min |
| Jun 13, 7:22 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, McDonough | 68 min |
| Jun 13, 8:38 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Woodford | 42 min |
| Jun 13, 9:10 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Livingston | 65 min |
| Jun 13, 10:16 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Will | 34 min |
| Jun 16, 5:07 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Whiteside | 38 min |
| Jun 16, 5:12 PM CDT | Severe Thunderstorm Warning | ILX | Hancock | 48 min |
| Jun 16, 5:30 PM CDT | Severe Thunderstorm Warning | ILX | Bureau | 60 min |
| Jun 16, 7:34 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 26 min |
| Jun 17, 3:53 AM CDT | Severe Thunderstorm Warning | ILX | Lee, Ogle | 52 min |
| Jun 17, 4:31 AM CDT | Severe Thunderstorm Warning | ILX | DeKalb | 29 min |
| Jun 17, 5:12 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 63 min |
| Jun 17, 6:13 PM CDT | Severe Thunderstorm Warning | ILX | Macon | 62 min |
| Jun 17, 6:13 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin, Montgomery | 62 min |
| Jun 17, 6:21 PM CDT | Severe Thunderstorm Warning | ILX | Christian | 69 min |
| Jun 17, 7:03 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 32 min |
| Jun 17, 7:03 PM CDT | Severe Thunderstorm Warning | LOT | Kendall | 42 min |
| Jun 17, 8:03 PM CDT | Severe Thunderstorm Warning | ILX | Montgomery | 57 min |
| Jun 17, 8:45 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee, Will | 45 min |
| Jun 19, 2:03 PM CDT | Severe Thunderstorm Warning | ILX | McDonough | 37 min |
| Jun 19, 9:55 PM CDT | Severe Thunderstorm Warning | ILX | Knox, Peoria, Stark | 65 min |
| Jun 19, 10:05 PM CDT | Severe Thunderstorm Warning | ILX | Bureau | 55 min |
| Jun 19, 10:17 PM CDT | Severe Thunderstorm Warning | ILX | Lee | 43 min |
| Jun 19, 10:22 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 38 min |
| Jun 19, 10:56 PM CDT | Severe Thunderstorm Warning | ILX | DeKalb | 49 min |
| Jun 19, 11:09 PM CDT | Severe Thunderstorm Warning | LOT | DuPage, Kane | 66 min |
| Jun 19, 11:41 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, McDonough, Warren | 64 min |
| Jun 20, 12:47 AM CDT | Severe Thunderstorm Warning | ILX | McLean, Tazewell | 58 min |
| Jun 20, 1:10 AM CDT | Severe Thunderstorm Warning | ILX | Logan, Menard | 65 min |
| Jun 20, 1:40 AM CDT | Severe Thunderstorm Warning | ILX | Macon | 65 min |
| Jun 20, 2:01 AM CDT | Severe Thunderstorm Warning | ILX | Moultrie, Shelby | 59 min |
| Jun 20, 2:30 AM CDT | Severe Thunderstorm Warning | ILX | Christian | 60 min |
| Jun 20, 2:44 AM CDT | Severe Thunderstorm Warning | ILX | Coles, Edgar | 61 min |
| Jun 20, 3:06 AM CDT | Severe Thunderstorm Warning | ILX | Clark, Cumberland | 69 min |
| Jun 22, 6:36 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 69 min |
| Jun 22, 6:36 PM CDT | Severe Thunderstorm Warning | LOT | Ford | 39 min |
| Jun 22, 7:09 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 51 min |
| Jun 22, 9:08 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Monroe, Saint Clair | 52 min |
| Jun 27, 7:49 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 56 min |
| Jun 27, 7:49 PM CDT | Severe Thunderstorm Warning | DVN | Mercer | 56 min |
| Jun 28, 4:07 PM CDT | Severe Thunderstorm Warning | ILX | Carroll, Ogle | 38 min |
| Jun 28, 7:48 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Livingston | 42 min |
| Jun 29, 12:46 AM CDT | Severe Thunderstorm Warning | ILX | Stephenson, Winnebago | 44 min |
| Jun 29, 1:08 AM CDT | Severe Thunderstorm Warning | ILX | Boone | 67 min |
| Jun 29, 1:20 AM CDT | Severe Thunderstorm Warning | LOT | Lake, McHenry | 60 min |
| Jun 29, 1:31 AM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess, Stephenson | 59 min |
| Jun 29, 1:39 AM CDT | Severe Thunderstorm Warning | ILX | DeKalb, Ogle, Winnebago | 51 min |
| Jun 29, 1:45 AM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Kane | 60 min |
| Jun 29, 2:00 AM CDT | Severe Thunderstorm Warning | ILX | Carroll, Ogle | 45 min |
| Jun 29, 2:19 AM CDT | Severe Thunderstorm Warning | LOT | Kendall, LaSalle | 56 min |
| Jun 29, 2:22 AM CDT | Severe Thunderstorm Warning | ILX | DeKalb, Lee | 53 min |
| Jun 29, 2:51 AM CDT | Severe Thunderstorm Warning | ILX | Bureau, Putnam | 69 min |
| Jun 29, 2:58 AM CDT | Severe Thunderstorm Warning | LOT | Grundy | 62 min |
| Jun 29, 3:04 AM CDT | Severe Thunderstorm Warning | DVN | Henry | 41 min |
| Jun 29, 3:30 AM CDT | Severe Thunderstorm Warning | DVN | Henry, Rock Island | 30 min |
| Jun 29, 3:48 AM CDT | Severe Thunderstorm Warning | LOT | Livingston | 57 min |
| Jun 30, 8:55 AM CDT | Severe Thunderstorm Warning | ILX | Macoupin, Montgomery, Sangamon | 35 min |
| Jun 30, 10:34 AM CDT | Severe Thunderstorm Warning | ILX | Clark | 56 min |
| Jun 30, 11:34 AM CDT | Severe Thunderstorm Warning | ILX | Menard, Sangamon | 56 min |
| Jun 30, 12:45 PM CDT | Severe Thunderstorm Warning | IND | Wabash | 30 min |
| Jun 30, 3:01 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 59 min |
| Jun 30, 5:44 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 61 min |
| Jul 4, 6:28 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 47 min |
| Jul 9, 9:22 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Tazewell | 68 min |
| Jul 9, 9:58 PM CDT | Severe Thunderstorm Warning | DVN | Mercer | 32 min |
| Jul 18, 4:02 PM CDT | Severe Thunderstorm Warning | LOT | Kendall | 43 min |
| Jul 20, 5:50 PM CDT | Severe Thunderstorm Warning | ILX | Clark | 55 min |
| Jul 20, 7:00 PM CDT | Severe Thunderstorm Warning | IND | Crawford | 30 min |
| Jul 21, 6:48 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 57 min |
| Aug 28, 2:29 PM CDT | Severe Thunderstorm Warning | ILX | DeKalb | 31 min |
| Aug 28, 2:32 PM CDT | Severe Thunderstorm Warning | LOT | Kane | 58 min |
| Aug 28, 2:58 PM CDT | Severe Thunderstorm Warning | ILX | DeKalb | 32 min |
| Aug 28, 3:37 PM CDT | Severe Thunderstorm Warning | LOT | DuPage, Kane, Kendall, Will | 68 min |
| Aug 28, 4:31 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 59 min |
| Aug 28, 6:15 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 60 min |
| Aug 29, 12:11 AM CDT | Severe Thunderstorm Warning | DVN | Mercer | 24 min |
| Aug 29, 1:06 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Peoria | 69 min |
| Aug 29, 1:33 AM CDT | Severe Thunderstorm Warning | ILX | Mason, Tazewell | 57 min |
| Aug 29, 1:47 AM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois | 58 min |
| Aug 29, 1:57 AM CDT | Severe Thunderstorm Warning | ILX | McLean | 63 min |
| Aug 29, 2:26 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, Macon, Piatt | 64 min |
| Aug 29, 3:11 AM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas | 64 min |
| Aug 29, 3:11 AM CDT | Severe Thunderstorm Warning | ILX | Moultrie | 64 min |
| Aug 29, 3:20 AM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 55 min |
| Aug 29, 3:29 AM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan, Sangamon | 61 min |
| Aug 29, 3:29 AM CDT | Severe Thunderstorm Warning | ILX | Menard | 61 min |
| Aug 29, 4:18 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Shelby | 57 min |
| Aug 29, 4:47 AM CDT | Severe Thunderstorm Warning | ILX | Hancock, McDonough | 58 min |
| Aug 29, 5:01 AM CDT | Severe Thunderstorm Warning | ILX | Schuyler | 59 min |
| Aug 29, 5:23 AM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 67 min |
| Aug 29, 5:28 AM CDT | Severe Thunderstorm Warning | LSX | Adams | 62 min |
| Aug 29, 5:30 AM CDT | Severe Thunderstorm Warning | ILX | Macon, Moultrie, Shelby | 60 min |
| Aug 29, 6:05 AM CDT | Severe Thunderstorm Warning | ILX | Logan, Menard, Sangamon | 27 min |
| Aug 29, 6:34 AM CDT | Severe Thunderstorm Warning | ILX | McDonough, Schuyler | 26 min |
| Aug 29, 6:34 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason | 56 min |
| Aug 29, 7:28 AM CDT | Severe Thunderstorm Warning | ILX | Coles, Douglas | 32 min |
| Sep 7, 4:34 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski | 41 min |
| Sep 7, 7:20 PM CDT | Severe Thunderstorm Warning | IND | White | 40 min |
| Sep 9, 10:15 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 45 min |
| Sep 9, 10:46 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 44 min |
| Sep 9, 11:30 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph | 30 min |
| Sep 28, 6:18 PM CDT | Severe Thunderstorm Warning | IND | Clay | 27 min |
| Sep 28, 6:31 PM CDT | Severe Thunderstorm Warning | IND | Richland | 44 min |
| Oct 3, 6:55 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 50 min |
| Oct 3, 9:30 PM CDT | Severe Thunderstorm Warning | PAH | Johnson, Massac, Pulaski | 60 min |
| Oct 17, 4:25 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 50 min |
| Oct 17, 4:34 PM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 56 min |
| Oct 17, 5:19 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Madison | 41 min |
| Oct 17, 6:16 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Shelby | 59 min |
| Nov 26, 8:47 PM CST | Severe Thunderstorm Warning | LSX | Clinton, Washington | 43 min |
| Nov 26, 8:47 PM CST | Severe Thunderstorm Warning | LSX | Perry | 43 min |
| Nov 27, 12:47 PM CST | Severe Thunderstorm Warning | LSX | Pike | 43 min |
| Nov 27, 1:17 PM CST | Severe Thunderstorm Warning | LSX | Adams, Brown | 28 min |
| Nov 27, 1:41 PM CST | Severe Thunderstorm Warning | ILX | Fulton, Schuyler | 64 min |
| Nov 27, 3:02 PM CST | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 43 min |
| Nov 27, 3:23 PM CST | Severe Thunderstorm Warning | LSX | Madison | 67 min |
| Nov 27, 3:44 PM CST | Severe Thunderstorm Warning | LOT | Grundy, Kendall, LaSalle | 46 min |
| Nov 27, 3:54 PM CST | Severe Thunderstorm Warning | LOT | Kane | 51 min |
| Nov 27, 3:54 PM CST | Severe Thunderstorm Warning | LOT | Livingston | 51 min |
| Nov 27, 4:20 PM CST | Severe Thunderstorm Warning | LOT | Cook, DuPage, Will | 35 min |
| Nov 27, 4:44 PM CST | Severe Thunderstorm Warning | LOT | Kankakee, Will | 61 min |
| Dec 14, 10:40 PM CST | Severe Thunderstorm Warning | ILX | Macoupin, Montgomery | 35 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Saint Clair County12
- Monroe County10
- Montgomery County10
- Madison County9
- Christian County9
- McDonough County8
- Ogle County8
- Sangamon County8
- Fulton County7
- Rock Island County7
- Will County7
- Stephenson County7
- Calhoun County7
- Randolph County7
- Macon County7
- Peoria County6
- Adams County6
- Carroll County6
- Jersey County6
- Shelby County6
- Cook County6
- Kane County6
- DuPage County6
- DeKalb County6
- Winnebago County5
- Mercer County5
- Menard County5
- Jackson County5
- Clark County5
- Macoupin County5
- Washington County5
- LaSalle County5
- Kendall County5
- Mason County4
- Schuyler County4
- Tazewell County4
- Franklin County4
- Wabash County4
- Clinton County4
- Pike County4
56 more counties
- Kankakee County4
- Logan County4
- Livingston County4
- Greene County3
- Hancock County3
- Grundy County3
- McHenry County3
- Knox County3
- Wayne County3
- White County3
- Lawrence County3
- Richland County3
- Bond County3
- Fayette County3
- Effingham County3
- Coles County3
- Cumberland County3
- Edgar County3
- Marion County3
- Perry County3
- Cass County3
- Morgan County3
- DeWitt County3
- Henry County3
- Bureau County3
- Lee County3
- Moultrie County3
- Ford County3
- Williamson County2
- Jefferson County2
- Crawford County2
- Hamilton County2
- Champaign County2
- Vermilion County2
- Lake County2
- Whiteside County2
- McLean County2
- Iroquois County2
- Jo Daviess County2
- Douglas County2
- Pulaski County2
- Edwards County1
- Scott County1
- Saline County1
- Gallatin County1
- Woodford County1
- Stark County1
- Warren County1
- Boone County1
- Putnam County1
- Piatt County1
- Alexander County1
- Clay County1
- Johnson County1
- Massac County1
- Brown County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19891991
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.