Alert archive / Illinois / Severe Thunderstorm Warnings / 2012
Severe Thunderstorm Warnings in Illinois, July 2012
113 severe thunderstorm warnings in July 2012. 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 July 2012. Tap one for its archive.
- Severe Thunderstorm Warnings
- 113
- Busiest day
- July 1, 201232 severe thunderstorm warnings
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Jul 1, 10:56 AM CDT | Severe Thunderstorm Warning | LOT | DeKalb, LaSalle, Lee, Ogle | 34 min |
| Jul 1, 11:18 AM CDT | Severe Thunderstorm Warning | LOT | Grundy, Kankakee, Kendall, LaSalle, Will | 57 min |
| Jul 1, 11:25 AM CDT | Severe Thunderstorm Warning | LOT | Cook, DeKalb, DuPage, Kane, Kendall, LaSalle and 1 more | 65 min |
| Jul 1, 12:07 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee | 31 min |
| Jul 1, 12:16 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Kankakee, Will | 59 min |
| Jul 1, 12:24 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Kane, Kendall, Will | 66 min |
| Jul 1, 2:15 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin | 30 min |
| Jul 1, 2:44 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin | 31 min |
| Jul 1, 2:56 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin, Saline | 34 min |
| Jul 1, 3:02 PM CDT | Severe Thunderstorm Warning | PAH | Williamson | 28 min |
| Jul 1, 3:12 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin | 33 min |
| Jul 1, 3:15 PM CDT | Severe Thunderstorm Warning | PAH | Johnson | 30 min |
| Jul 1, 3:27 PM CDT | Severe Thunderstorm Warning | PAH | White | 33 min |
| Jul 1, 3:29 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 46 min |
| Jul 1, 3:30 PM CDT | Severe Thunderstorm Warning | PAH | Williamson | 30 min |
| Jul 1, 3:37 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin | 23 min |
| Jul 1, 3:41 PM CDT | Severe Thunderstorm Warning | PAH | Johnson | 49 min |
| Jul 1, 3:54 PM CDT | Severe Thunderstorm Warning | PAH | White | 36 min |
| Jul 1, 3:57 PM CDT | Severe Thunderstorm Warning | PAH | Johnson | 33 min |
| Jul 1, 3:58 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Williamson | 32 min |
| Jul 1, 4:14 PM CDT | Severe Thunderstorm Warning | PAH | White | 31 min |
| Jul 1, 4:17 PM CDT | Severe Thunderstorm Warning | PAH | Perry | 18 min |
| Jul 1, 4:28 PM CDT | Severe Thunderstorm Warning | LSX | Randolph, Saint Clair, Washington | 47 min |
| Jul 1, 4:29 PM CDT | Severe Thunderstorm Warning | PAH | Johnson, Williamson | 31 min |
| Jul 1, 4:42 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Wabash, Wayne, White | 33 min |
| Jul 1, 4:45 PM CDT | Severe Thunderstorm Warning | PAH | Franklin | 30 min |
| Jul 1, 5:00 PM CDT | Severe Thunderstorm Warning | PAH | Wabash | 30 min |
| Jul 1, 5:04 PM CDT | Severe Thunderstorm Warning | PAH | Franklin | 26 min |
| Jul 1, 5:27 PM CDT | Severe Thunderstorm Warning | ILX | Lawrence | 63 min |
| Jul 1, 5:29 PM CDT | Severe Thunderstorm Warning | PAH | Wabash | 31 min |
| Jul 1, 5:47 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 20 min |
| Jul 1, 6:28 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 17 min |
| Jul 2, 2:04 PM CDT | Severe Thunderstorm Warning | PAH | Williamson | 26 min |
| Jul 2, 2:07 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin | 23 min |
| Jul 2, 2:55 PM CDT | Severe Thunderstorm Warning | PAH | Saline | 35 min |
| Jul 2, 3:34 PM CDT | Severe Thunderstorm Warning | PAH | Hamilton, White | 26 min |
| Jul 2, 3:35 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 25 min |
| Jul 2, 4:07 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 23 min |
| Jul 2, 4:32 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Wayne | 28 min |
| Jul 2, 4:34 PM CDT | Severe Thunderstorm Warning | PAH | Wayne | 26 min |
| Jul 2, 7:00 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 45 min |
| Jul 3, 1:39 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski | 36 min |
| Jul 3, 3:40 PM CDT | Severe Thunderstorm Warning | PAH | Hardin | 21 min |
| Jul 4, 12:42 PM CDT | Severe Thunderstorm Warning | PAH | Saline | 18 min |
| Jul 4, 1:04 PM CDT | Severe Thunderstorm Warning | PAH | Saline | 26 min |
| Jul 4, 1:23 PM CDT | Severe Thunderstorm Warning | PAH | Pope | 22 min |
| Jul 4, 5:12 PM CDT | Severe Thunderstorm Warning | ILX | Lawrence | 48 min |
| Jul 5, 3:39 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Lake | 54 min |
| Jul 5, 5:51 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Lake | 54 min |
| Jul 7, 7:06 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 32 min |
| Jul 7, 7:58 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 47 min |
| Jul 7, 8:40 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 50 min |
| Jul 8, 1:51 PM CDT | Severe Thunderstorm Warning | ILX | Lawrence | 54 min |
| Jul 8, 2:29 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Marion | 46 min |
| Jul 8, 2:59 PM CDT | Severe Thunderstorm Warning | ILX | Effingham, Jasper | 61 min |
| Jul 8, 3:55 PM CDT | Severe Thunderstorm Warning | ILX | Crawford, Lawrence | 65 min |
| Jul 8, 4:50 PM CDT | Severe Thunderstorm Warning | PAH | Williamson | 25 min |
| Jul 8, 5:03 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 42 min |
| Jul 8, 5:18 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Perry | 27 min |
| Jul 8, 5:37 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Perry | 23 min |
| Jul 8, 5:42 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 48 min |
| Jul 8, 5:44 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 46 min |
| Jul 8, 5:48 PM CDT | Severe Thunderstorm Warning | PAH | Johnson | 27 min |
| Jul 8, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 27 min |
| Jul 8, 6:27 PM CDT | Severe Thunderstorm Warning | PAH | Massac, Pope | 33 min |
| Jul 8, 6:49 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 41 min |
| Jul 8, 6:58 PM CDT | Severe Thunderstorm Warning | PAH | Alexander | 32 min |
| Jul 8, 7:32 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski | 43 min |
| Jul 11, 8:14 PM CDT | Severe Thunderstorm Warning | PAH | Pope | 31 min |
| Jul 11, 8:24 PM CDT | Severe Thunderstorm Warning | PAH | Johnson, Massac | 24 min |
| Jul 11, 9:15 PM CDT | Severe Thunderstorm Warning | PAH | Pulaski | 30 min |
| Jul 13, 2:49 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 35 min |
| Jul 14, 5:19 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 23 min |
| Jul 18, 3:43 PM CDT | Severe Thunderstorm Warning | PAH | Alexander | 26 min |
| Jul 18, 6:27 PM CDT | Severe Thunderstorm Warning | LOT | Boone, Winnebago | 78 min |
| Jul 18, 7:24 PM CDT | Severe Thunderstorm Warning | DVN | Stephenson | 36 min |
| Jul 18, 7:24 PM CDT | Severe Thunderstorm Warning | LOT | Boone, Ogle, Winnebago | 66 min |
| Jul 18, 7:57 PM CDT | Severe Thunderstorm Warning | LOT | Boone, DeKalb, Kane, McHenry, Ogle, Winnebago | 63 min |
| Jul 18, 8:41 PM CDT | Severe Thunderstorm Warning | LOT | Lake, McHenry | 64 min |
| Jul 18, 8:46 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Kane, Lake, McHenry | 74 min |
| Jul 18, 8:53 PM CDT | Severe Thunderstorm Warning | LOT | Ogle | 52 min |
| Jul 18, 9:02 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane, Kendall | 60 min |
| Jul 18, 9:52 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 68 min |
| Jul 24, 4:26 AM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess, Stephenson | 49 min |
| Jul 24, 4:42 AM CDT | Severe Thunderstorm Warning | LOT | Boone, DeKalb, McHenry, Ogle, Winnebago | 63 min |
| Jul 24, 5:30 AM CDT | Severe Thunderstorm Warning | LOT | Cook, DeKalb, DuPage, Kane, Kendall, Lake and 2 more | 60 min |
| Jul 24, 6:09 AM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Grundy, Kankakee, Kendall, Will | 66 min |
| Jul 24, 7:04 AM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee, Will | 56 min |
| Jul 26, 1:35 AM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 40 min |
| Jul 26, 3:27 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Union | 48 min |
| Jul 26, 3:40 PM CDT | Severe Thunderstorm Warning | PAH | Williamson | 35 min |
| Jul 26, 3:45 PM CDT | Severe Thunderstorm Warning | PAH | Alexander | 45 min |
| Jul 26, 3:48 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Lee, Ogle | 45 min |
| Jul 26, 4:00 PM CDT | Severe Thunderstorm Warning | PAH | Alexander | 30 min |
| Jul 26, 4:02 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 28 min |
| Jul 26, 4:14 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin, Saline | 46 min |
| Jul 26, 4:18 PM CDT | Severe Thunderstorm Warning | PAH | Pope, Saline, Williamson | 29 min |
| Jul 26, 4:29 PM CDT | Severe Thunderstorm Warning | PAH | Alexander | 31 min |
| Jul 26, 4:43 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin | 32 min |
| Jul 26, 5:46 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Union | 29 min |
| Jul 26, 6:00 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Hamilton, Saline, Williamson | 45 min |
| Jul 27, 5:04 PM CDT | Severe Thunderstorm Warning | PAH | Alexander | 41 min |
| Jul 31, 1:38 AM CDT | Severe Thunderstorm Warning | LOT | Ogle, Winnebago | 67 min |
| Jul 31, 2:06 AM CDT | Severe Thunderstorm Warning | LOT | Boone, Cook, DeKalb, DuPage, Kane, McHenry | 54 min |
| Jul 31, 2:46 AM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane, Kendall, Lee, Ogle | 59 min |
| Jul 31, 3:47 AM CDT | Severe Thunderstorm Warning | LOT | Grundy, Kendall, Will | 43 min |
| Jul 31, 7:25 AM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee | 51 min |
| Jul 31, 7:56 AM CDT | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee | 79 min |
| Jul 31, 9:34 AM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 41 min |
| Jul 31, 10:20 AM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 29 min |
| Jul 31, 12:36 PM CDT | Severe Thunderstorm Warning | LOT | Ford | 54 min |
| Jul 31, 12:57 PM CDT | Severe Thunderstorm Warning | ILX | Champaign | 49 min |
| Jul 31, 2:23 PM CDT | Severe Thunderstorm Warning | LOT | Ford | 22 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cook County11
- Will County9
- Williamson County9
- DeKalb County8
- Ogle County8
- Kendall County8
- DuPage County8
- Kane County8
- Gallatin County8
- Alexander County8
- Kankakee County7
- Saline County7
- Randolph County7
- Johnson County6
- McHenry County6
- LaSalle County5
- White County5
- Lake County5
- Boone County5
- Winnebago County5
- Iroquois County4
- Franklin County4
- Saint Clair County4
- Lawrence County4
- Pope County4
- Jackson County4
- Lee County3
- Grundy County3
- Perry County3
- Wabash County3
- Wayne County3
- Fayette County3
- Pulaski County3
- Monroe County3
- Edwards County2
- Hamilton County2
- Massac County2
- Stephenson County2
- Union County2
- Champaign County2
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.