Alert archive / Illinois / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Illinois, 1991
254 severe thunderstorm warnings in 1991. 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 1991. Tap one for its archive.
- Severe Thunderstorm Warnings
- 254
- Busiest month
- May65 severe thunderstorm warnings
- Busiest day
- March 27, 199132 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 12, 5:19 PM CST | Severe Thunderstorm Warning | LSX | Pike | 41 min |
| Mar 17, 4:20 PM CST | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 25 min |
| Mar 17, 4:20 PM CST | Severe Thunderstorm Warning | LSX | Madison | 25 min |
| Mar 21, 3:22 PM CST | Severe Thunderstorm Warning | LSX | Randolph | 38 min |
| Mar 21, 3:31 PM CST | Severe Thunderstorm Warning | LSX | Madison | 44 min |
| Mar 21, 10:44 PM CST | Severe Thunderstorm Warning | IND | Crawford | 31 min |
| Mar 22, 3:18 PM CST | Severe Thunderstorm Warning | PAH | Jackson | 27 min |
| Mar 22, 8:25 PM CST | Severe Thunderstorm Warning | DVN | Henry, Whiteside | 65 min |
| Mar 22, 8:25 PM CST | Severe Thunderstorm Warning | DVN | Rock Island | 45 min |
| Mar 22, 8:30 PM CST | Severe Thunderstorm Warning | ILX | Knox, Warren | 25 min |
| Mar 22, 9:15 PM CST | Severe Thunderstorm Warning | DVN | Jo Daviess | 60 min |
| Mar 22, 9:47 PM CST | Severe Thunderstorm Warning | ILX | McLean | 33 min |
| Mar 22, 9:59 PM CST | Severe Thunderstorm Warning | LOT | Livingston | 61 min |
| Mar 22, 10:23 PM CST | Severe Thunderstorm Warning | LOT | Grundy, Kankakee, Will | 52 min |
| Mar 26, 9:15 PM CST | Severe Thunderstorm Warning | ILX | Hancock | 60 min |
| Mar 26, 9:15 PM CST | Severe Thunderstorm Warning | ILX | McDonough | 105 min |
| Mar 26, 10:25 PM CST | Severe Thunderstorm Warning | ILX | Fulton | 65 min |
| Mar 26, 10:36 PM CST | Severe Thunderstorm Warning | ILX | Peoria | 2 hr |
| Mar 26, 11:04 PM CST | Severe Thunderstorm Warning | ILX | Tazewell, Woodford | 56 min |
| Mar 26, 11:32 PM CST | Severe Thunderstorm Warning | ILX | Marshall | 58 min |
| Mar 26, 11:48 PM CST | Severe Thunderstorm Warning | LOT | Grundy, LaSalle | 42 min |
| Mar 26, 11:48 PM CST | Severe Thunderstorm Warning | LOT | Livingston | 57 min |
| Mar 26, 11:48 PM CST | Severe Thunderstorm Warning | LOT | Will | 57 min |
| Mar 26, 11:55 PM CST | Severe Thunderstorm Warning | ILX | Knox, Warren | 65 min |
| Mar 27, 12:24 AM CST | Severe Thunderstorm Warning | DVN | Henry | 36 min |
| Mar 27, 12:32 AM CST | Severe Thunderstorm Warning | ILX | Bureau | 28 min |
| Mar 27, 1:00 AM CST | Severe Thunderstorm Warning | LOT | Grundy, LaSalle, Livingston | 60 min |
| Mar 27, 2:17 AM CST | Severe Thunderstorm Warning | LOT | Cook, Will | 43 min |
| Mar 27, 5:48 AM CST | Severe Thunderstorm Warning | DVN | Henry | 27 min |
| Mar 27, 7:41 AM CST | Severe Thunderstorm Warning | LOT | Cook, Lake | 34 min |
| Mar 27, 12:09 PM CST | Severe Thunderstorm Warning | ILX | Henderson, Warren | 66 min |
| Mar 27, 12:51 PM CST | Severe Thunderstorm Warning | DVN | Henry, Whiteside | 69 min |
| Mar 27, 1:04 PM CST | Severe Thunderstorm Warning | ILX | Carroll, Stephenson | 26 min |
| Mar 27, 1:26 PM CST | Severe Thunderstorm Warning | DVN | Henry | 54 min |
| Mar 27, 1:26 PM CST | Severe Thunderstorm Warning | DVN | Mercer | 64 min |
| Mar 27, 1:31 PM CST | Severe Thunderstorm Warning | ILX | Lee, Ogle, Stephenson, Winnebago | 44 min |
| Mar 27, 2:07 PM CST | Severe Thunderstorm Warning | ILX | Boone | 53 min |
| Mar 27, 2:07 PM CST | Severe Thunderstorm Warning | ILX | Lee | 53 min |
| Mar 27, 2:13 PM CST | Severe Thunderstorm Warning | LOT | McHenry | 62 min |
| Mar 27, 2:25 PM CST | Severe Thunderstorm Warning | ILX | Peoria | 35 min |
| Mar 27, 2:44 PM CST | Severe Thunderstorm Warning | ILX | Marshall, Putnam | 31 min |
| Mar 27, 3:00 PM CST | Severe Thunderstorm Warning | ILX | Peoria | 30 min |
| Mar 27, 3:04 PM CST | Severe Thunderstorm Warning | LOT | Lake | 26 min |
| Mar 27, 3:13 PM CST | Severe Thunderstorm Warning | ILX | Marshall, Woodford | 22 min |
| Mar 27, 3:18 PM CST | Severe Thunderstorm Warning | ILX | DeKalb | 27 min |
| Mar 27, 3:23 PM CST | Severe Thunderstorm Warning | LOT | Cook, Lake | 52 min |
| Apr 8, 3:43 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 62 min |
| Apr 9, 3:40 AM CDT | Severe Thunderstorm Warning | PAH | Union | 35 min |
| Apr 9, 4:18 AM CDT | Severe Thunderstorm Warning | PAH | Union | 42 min |
| Apr 9, 4:56 AM CDT | Severe Thunderstorm Warning | PAH | Johnson | 34 min |
| Apr 23, 1:44 PM CDT | Severe Thunderstorm Warning | LOT | DuPage, Kane | 46 min |
| Apr 28, 3:06 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 69 min |
| Apr 28, 3:42 AM CDT | Severe Thunderstorm Warning | ILX | Morgan | 48 min |
| Apr 28, 5:12 AM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 33 min |
| Apr 28, 5:31 AM CDT | Severe Thunderstorm Warning | ILX | Macon | 59 min |
| Apr 28, 6:12 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 48 min |
| Apr 28, 6:34 AM CDT | Severe Thunderstorm Warning | ILX | Piatt | 41 min |
| Apr 29, 7:23 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Livingston | 67 min |
| Apr 29, 7:40 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon | 65 min |
| Apr 29, 7:40 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 65 min |
| Apr 29, 8:15 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Livingston | 60 min |
| Apr 29, 8:15 PM CDT | Severe Thunderstorm Warning | LOT | Kendall | 60 min |
| Apr 29, 8:15 PM CDT | Severe Thunderstorm Warning | LOT | McHenry | 60 min |
| May 4, 6:48 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 42 min |
| May 4, 6:55 PM CDT | Severe Thunderstorm Warning | ILX | Hancock | 65 min |
| May 4, 7:30 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 30 min |
| May 4, 7:54 PM CDT | Severe Thunderstorm Warning | LSX | Brown | 36 min |
| May 4, 7:58 PM CDT | Severe Thunderstorm Warning | ILX | Schuyler | 62 min |
| May 4, 8:19 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 56 min |
| May 4, 8:20 PM CDT | Severe Thunderstorm Warning | LSX | Pike, Scott | 40 min |
| May 4, 9:08 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 37 min |
| May 4, 9:30 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin, Sangamon | 60 min |
| May 4, 9:30 PM CDT | Severe Thunderstorm Warning | ILX | Menard | 60 min |
| May 5, 5:10 PM CDT | Severe Thunderstorm Warning | LOT | Kane, Kendall | 35 min |
| May 5, 6:04 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 41 min |
| May 14, 7:49 AM CDT | Severe Thunderstorm Warning | LOT | Grundy | 56 min |
| May 14, 12:16 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Macon | 59 min |
| May 14, 12:33 PM CDT | Severe Thunderstorm Warning | ILX | Champaign | 57 min |
| May 14, 3:00 PM CDT | Severe Thunderstorm Warning | ILX | Bureau | 60 min |
| May 14, 3:23 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 67 min |
| May 14, 3:23 PM CDT | Severe Thunderstorm Warning | DVN | Henry | 67 min |
| May 14, 4:46 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin, Montgomery, Sangamon | 44 min |
| May 14, 5:48 PM CDT | Severe Thunderstorm Warning | IND | White | 57 min |
| May 14, 5:48 PM CDT | Severe Thunderstorm Warning | IND | Wayne | 41 min |
| May 14, 5:53 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin, Montgomery | 52 min |
| May 14, 6:04 PM CDT | Severe Thunderstorm Warning | IND | Edwards | 41 min |
| May 14, 7:15 PM CDT | Severe Thunderstorm Warning | ILX | Hancock, McDonough | 60 min |
| May 16, 1:42 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 48 min |
| May 16, 3:41 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 49 min |
| May 16, 4:08 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 37 min |
| May 17, 1:24 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois | 66 min |
| May 17, 2:08 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 67 min |
| May 17, 2:17 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 58 min |
| May 17, 3:50 PM CDT | Severe Thunderstorm Warning | IND | White | 40 min |
| May 17, 5:11 PM CDT | Severe Thunderstorm Warning | IND | Gallatin | 49 min |
| May 17, 5:40 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Rock Island, Whiteside | 50 min |
| May 17, 5:42 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 63 min |
| May 17, 6:03 PM CDT | Severe Thunderstorm Warning | ILX | Bureau | 57 min |
| May 17, 6:41 PM CDT | Severe Thunderstorm Warning | ILX | Hancock, Henderson | 64 min |
| May 17, 6:55 PM CDT | Severe Thunderstorm Warning | ILX | Bureau | 65 min |
| May 17, 7:06 PM CDT | Severe Thunderstorm Warning | LOT | Livingston | 54 min |
| May 17, 7:26 PM CDT | Severe Thunderstorm Warning | ILX | Putnam | 64 min |
| May 17, 7:31 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 44 min |
| May 17, 7:38 PM CDT | Severe Thunderstorm Warning | ILX | McDonough, Warren | 67 min |
| May 17, 7:56 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 34 min |
| May 17, 8:05 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Livingston | 55 min |
| May 17, 9:10 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 65 min |
| May 17, 9:24 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Mason, Tazewell, Woodford | 66 min |
| May 17, 9:28 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Menard | 47 min |
| May 17, 9:56 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Sangamon | 49 min |
| May 17, 10:41 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Macon, Piatt | 49 min |
| May 17, 11:11 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas | 49 min |
| May 17, 11:11 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Moultrie | 49 min |
| May 25, 6:21 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 60 min |
| May 30, 6:07 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 38 min |
| May 30, 7:10 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 65 min |
| May 30, 7:15 PM CDT | Severe Thunderstorm Warning | ILX | McDonough, Schuyler | 60 min |
| May 30, 7:26 PM CDT | Severe Thunderstorm Warning | ILX | DeKalb, Lee | 49 min |
| May 30, 8:20 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 40 min |
| May 30, 8:54 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 51 min |
| May 31, 3:32 PM CDT | Severe Thunderstorm Warning | LOT | Kane | 58 min |
| May 31, 3:39 PM CDT | Severe Thunderstorm Warning | ILX | DeKalb | 61 min |
| May 31, 3:39 PM CDT | Severe Thunderstorm Warning | ILX | Boone | 51 min |
| May 31, 4:16 PM CDT | Severe Thunderstorm Warning | ILX | Bureau | 59 min |
| May 31, 4:23 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Kane | 67 min |
| May 31, 5:24 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 66 min |
| May 31, 5:55 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 65 min |
| May 31, 6:39 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Peoria, Tazewell | 51 min |
| May 31, 7:46 PM CDT | Severe Thunderstorm Warning | LOT | Livingston | 59 min |
| May 31, 7:54 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Menard | 66 min |
| May 31, 7:54 PM CDT | Severe Thunderstorm Warning | ILX | Logan | 66 min |
| Jun 1, 6:35 PM CDT | Severe Thunderstorm Warning | PAH | Saline | 25 min |
| Jun 13, 8:20 PM CDT | Severe Thunderstorm Warning | ILX | Marshall, Woodford | 40 min |
| Jun 13, 8:51 PM CDT | Severe Thunderstorm Warning | LOT | Livingston | 39 min |
| Jun 13, 8:51 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 54 min |
| Jun 15, 1:50 AM CDT | Severe Thunderstorm Warning | ILX | Fulton | 14 hr |
| Jun 15, 3:01 PM CDT | Severe Thunderstorm Warning | ILX | McDonough | 59 min |
| Jun 15, 3:02 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee, Will | 58 min |
| Jun 15, 3:50 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell, Woodford | 55 min |
| Jun 15, 6:41 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Pike | 49 min |
| Jun 15, 7:08 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 52 min |
| Jun 15, 8:10 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 50 min |
| Jun 15, 8:49 PM CDT | Severe Thunderstorm Warning | LSX | Bond | 41 min |
| Jun 15, 9:02 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 43 min |
| Jun 15, 9:23 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 52 min |
| Jun 15, 9:35 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Washington | 55 min |
| Jun 15, 11:01 PM CDT | Severe Thunderstorm Warning | PAH | Hamilton | 59 min |
| Jun 15, 11:16 PM CDT | Severe Thunderstorm Warning | IND | Wayne, White | 44 min |
| Jul 1, 5:44 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, Macon | 61 min |
| Jul 1, 6:17 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Sangamon | 43 min |
| Jul 1, 6:33 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Shelby | 57 min |
| Jul 1, 6:33 PM CDT | Severe Thunderstorm Warning | ILX | Douglas, Moultrie, Piatt | 57 min |
| Jul 1, 6:33 PM CDT | Severe Thunderstorm Warning | ILX | Champaign | 57 min |
| Jul 1, 7:20 PM CDT | Severe Thunderstorm Warning | ILX | Montgomery, Shelby | 40 min |
| Jul 2, 12:02 PM CDT | Severe Thunderstorm Warning | PAH | Johnson | 43 min |
| Jul 2, 12:12 PM CDT | Severe Thunderstorm Warning | LSX | Perry | 33 min |
| Jul 3, 3:22 PM CDT | Severe Thunderstorm Warning | LOT | Kane | 38 min |
| Jul 3, 3:38 PM CDT | Severe Thunderstorm Warning | LOT | Kane, Kendall | 52 min |
| Jul 3, 4:05 PM CDT | Severe Thunderstorm Warning | LOT | DuPage | 55 min |
| Jul 3, 6:57 PM CDT | Severe Thunderstorm Warning | PAH | Alexander | 40 min |
| Jul 5, 3:40 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 35 min |
| Jul 5, 4:31 PM CDT | Severe Thunderstorm Warning | LSX | Perry | 44 min |
| Jul 5, 4:31 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 39 min |
| Jul 5, 5:45 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 40 min |
| Jul 7, 4:07 AM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 53 min |
| Jul 7, 5:32 AM CDT | Severe Thunderstorm Warning | ILX | DeKalb, Ogle | 43 min |
| Jul 7, 3:56 PM CDT | Severe Thunderstorm Warning | LOT | McHenry | 49 min |
| Jul 7, 4:20 PM CDT | Severe Thunderstorm Warning | ILX | DeKalb, Lee | 40 min |
| Jul 7, 4:49 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Will | 41 min |
| Jul 7, 5:11 PM CDT | Severe Thunderstorm Warning | LOT | Kendall | 34 min |
| Jul 7, 5:27 PM CDT | Severe Thunderstorm Warning | LOT | Grundy | 33 min |
| Jul 7, 5:41 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 49 min |
| Jul 7, 6:59 PM CDT | Severe Thunderstorm Warning | LOT | Livingston | 31 min |
| Jul 7, 7:29 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 46 min |
| Jul 7, 9:05 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 55 min |
| Jul 7, 10:28 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 32 min |
| Jul 9, 4:54 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Pike | 36 min |
| Aug 3, 1:40 AM CDT | Severe Thunderstorm Warning | LOT | Grundy | 35 min |
| Aug 3, 3:38 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 52 min |
| Aug 3, 4:09 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 51 min |
| Aug 3, 5:06 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 54 min |
| Aug 3, 5:10 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Perry | 50 min |
| Aug 8, 5:12 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 48 min |
| Aug 8, 5:15 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 45 min |
| Aug 8, 5:34 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair, Washington | 41 min |
| Aug 8, 6:04 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 41 min |
| Aug 8, 7:13 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 47 min |
| Aug 8, 7:51 PM CDT | Severe Thunderstorm Warning | LSX | Perry | 54 min |
| Aug 8, 8:06 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 54 min |
| Aug 14, 2:24 PM CDT | Severe Thunderstorm Warning | IND | Richland, Wayne | 36 min |
| Aug 14, 4:21 PM CDT | Severe Thunderstorm Warning | PAH | Williamson | 39 min |
| Aug 18, 12:13 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Sangamon | 62 min |
| Aug 18, 6:07 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 53 min |
| Aug 18, 8:39 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess | 51 min |
| Sep 2, 3:13 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey | 32 min |
| Sep 2, 5:48 PM CDT | Severe Thunderstorm Warning | ILX | Menard, Sangamon | 57 min |
| Sep 9, 6:04 PM CDT | Severe Thunderstorm Warning | DVN | Whiteside | 56 min |
| Sep 9, 6:29 PM CDT | Severe Thunderstorm Warning | ILX | Lee | 31 min |
| Sep 9, 6:43 PM CDT | Severe Thunderstorm Warning | ILX | Ogle, Winnebago | 47 min |
| Sep 9, 7:23 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island | 52 min |
| Sep 9, 7:28 PM CDT | Severe Thunderstorm Warning | ILX | Ogle, Winnebago | 32 min |
| Sep 9, 7:55 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Mercer | 65 min |
| Sep 9, 9:35 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Kendall | 40 min |
| Sep 9, 10:21 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Tazewell | 39 min |
| Sep 9, 10:36 PM CDT | Severe Thunderstorm Warning | LOT | Livingston | 54 min |
| Sep 9, 11:03 PM CDT | Severe Thunderstorm Warning | LOT | Ford | 57 min |
| Sep 9, 11:40 PM CDT | Severe Thunderstorm Warning | LOT | Ford | 35 min |
| Sep 12, 6:15 PM CDT | Severe Thunderstorm Warning | DVN | Rock Island, Whiteside | 60 min |
| Sep 12, 6:38 PM CDT | Severe Thunderstorm Warning | ILX | Carroll | 52 min |
| Sep 12, 7:39 PM CDT | Severe Thunderstorm Warning | ILX | Ogle, Winnebago | 21 min |
| Oct 2, 6:24 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, McDonough | 51 min |
| Oct 3, 9:49 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 41 min |
| Oct 4, 8:37 AM CDT | Severe Thunderstorm Warning | LSX | Adams | 38 min |
| Oct 4, 9:09 AM CDT | Severe Thunderstorm Warning | LSX | Brown, Pike | 51 min |
| Oct 4, 4:12 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 48 min |
| Oct 4, 4:36 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Schuyler | 54 min |
| Oct 4, 4:56 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 49 min |
| Oct 4, 5:16 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 59 min |
| Oct 4, 5:23 PM CDT | Severe Thunderstorm Warning | LSX | Scott | 44 min |
| Oct 4, 5:31 PM CDT | Severe Thunderstorm Warning | ILX | Mason, Tazewell | 59 min |
| Oct 4, 5:41 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 57 min |
| Oct 4, 5:41 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey | 57 min |
| Oct 4, 5:43 PM CDT | Severe Thunderstorm Warning | ILX | Menard, Sangamon | 62 min |
| Oct 4, 5:43 PM CDT | Severe Thunderstorm Warning | ILX | Cass, Morgan | 47 min |
| Oct 4, 6:06 PM CDT | Severe Thunderstorm Warning | LOT | DuPage | 24 min |
| Oct 4, 6:46 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Montgomery | 59 min |
| Oct 4, 6:46 PM CDT | Severe Thunderstorm Warning | ILX | Macoupin | 59 min |
| Oct 4, 6:46 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt | 59 min |
| Oct 4, 6:53 PM CDT | Severe Thunderstorm Warning | LOT | Livingston | 57 min |
| Oct 4, 7:10 PM CDT | Severe Thunderstorm Warning | LOT | Ford | 65 min |
| Oct 4, 7:30 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee | 60 min |
| Oct 4, 7:47 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 58 min |
| Oct 4, 7:47 PM CDT | Severe Thunderstorm Warning | ILX | Macon, Moultrie | 58 min |
| Oct 4, 7:56 PM CDT | Severe Thunderstorm Warning | LOT | Will | 64 min |
| Oct 23, 2:12 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, McDonough | 63 min |
| Oct 23, 2:40 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 50 min |
| Oct 23, 4:09 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell, Woodford | 66 min |
| Oct 23, 4:43 PM CDT | Severe Thunderstorm Warning | ILX | McLean | 62 min |
| Oct 23, 4:54 PM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 66 min |
| Nov 19, 2:44 PM CST | Severe Thunderstorm Warning | LOT | Cook, Will | 31 min |
| Nov 29, 10:30 PM CST | Severe Thunderstorm Warning | LSX | Clinton, Washington | 45 min |
| Nov 29, 10:43 PM CST | Severe Thunderstorm Warning | LSX | Perry, Randolph | 47 min |
| Nov 29, 10:53 PM CST | Severe Thunderstorm Warning | LSX | Effingham, Fayette, Marion | 52 min |
| Nov 29, 11:15 PM CST | Severe Thunderstorm Warning | LSX | Jefferson, Washington | 45 min |
| Nov 29, 11:31 PM CST | Severe Thunderstorm Warning | DVN | Henry, Rock Island, Whiteside | 29 min |
| Nov 29, 11:44 PM CST | Severe Thunderstorm Warning | LOT | Ford, Iroquois | 46 min |
| Nov 30, 12:41 AM CST | Severe Thunderstorm Warning | LOT | LaSalle | 34 min |
| Dec 8, 1:48 PM CST | Severe Thunderstorm Warning | ILX | Fulton, Mason | 42 min |
| Dec 8, 2:14 PM CST | Severe Thunderstorm Warning | ILX | Cass, Menard | 46 min |
| Dec 8, 2:20 PM CST | Severe Thunderstorm Warning | ILX | McLean, Tazewell, Woodford | 40 min |
| Dec 8, 2:36 PM CST | Severe Thunderstorm Warning | ILX | Logan | 39 min |
| Dec 8, 3:21 PM CST | Severe Thunderstorm Warning | LOT | Grundy, LaSalle | 24 min |
| Dec 8, 3:23 PM CST | Severe Thunderstorm Warning | ILX | DeWitt, Logan, Macon | 67 min |
| Dec 8, 3:41 PM CST | Severe Thunderstorm Warning | LOT | Ford | 34 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Livingston County12
- Cook County11
- Grundy County10
- LaSalle County10
- Randolph County9
- Henry County9
- Macon County9
- Pike County8
- Will County8
- Tazewell County8
- Sangamon County8
- Whiteside County7
- Rock Island County7
- Kankakee County7
- McDonough County7
- Fulton County7
- Woodford County7
- Cass County7
- Ford County7
- McLean County6
- Kane County6
- DeWitt County6
- Adams County6
- Menard County6
- Logan County6
- Peoria County5
- Bureau County5
- Lee County5
- Ogle County5
- DeKalb County5
- Calhoun County5
- Morgan County5
- Christian County5
- Kendall County5
- Champaign County5
- Iroquois County5
- Perry County5
- Saint Clair County4
- Warren County4
- Jo Daviess County4
49 more counties
- Hancock County4
- Marshall County4
- Winnebago County4
- Piatt County4
- Macoupin County4
- Montgomery County4
- Jersey County4
- Washington County4
- Monroe County3
- Madison County3
- Lake County3
- Mercer County3
- McHenry County3
- DuPage County3
- Greene County3
- Schuyler County3
- White County3
- Wayne County3
- Mason County3
- Moultrie County3
- Jefferson County3
- Jackson County2
- Knox County2
- Henderson County2
- Carroll County2
- Stephenson County2
- Boone County2
- Putnam County2
- Union County2
- Johnson County2
- Brown County2
- Scott County2
- Douglas County2
- Marion County2
- Shelby County2
- Clinton County2
- Crawford County1
- Edwards County1
- Vermilion County1
- Gallatin County1
- Coles County1
- Saline County1
- Bond County1
- Hamilton County1
- Alexander County1
- Richland County1
- Williamson County1
- Effingham County1
- Fayette County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive19901992
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.