Alert archive / Illinois / Severe Thunderstorm Warnings / 2012
Severe Thunderstorm Warnings in Illinois, September 2012
92 severe thunderstorm warnings in September 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 September 2012. Tap one for its archive.
- Severe Thunderstorm Warnings
- 92
- Busiest day
- September 7, 201220 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 |
|---|---|---|---|---|
| Sep 1, 5:35 PM CDT | Severe Thunderstorm Warning | PAH | Franklin | 25 min |
| Sep 1, 5:50 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski, Union | 25 min |
| Sep 1, 6:29 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski | 31 min |
| Sep 1, 7:44 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Hamilton, Wayne, White | 31 min |
| Sep 1, 7:48 PM CDT | Severe Thunderstorm Warning | PAH | Hardin, Massac, Pope | 27 min |
| Sep 4, 9:45 PM CDT | Severe Thunderstorm Warning | LOT | Boone, Cook, DeKalb, DuPage, Kane, Lake and 4 more | 60 min |
| Sep 4, 10:35 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DeKalb, DuPage, Grundy, Kane, Kendall and 5 more | 70 min |
| Sep 5, 3:41 AM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 64 min |
| Sep 5, 4:16 AM CDT | Severe Thunderstorm Warning | DVN | Henderson, Henry, Mercer, Rock Island, Warren | 59 min |
| Sep 5, 4:30 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox | 60 min |
| Sep 5, 6:36 AM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 30 min |
| Sep 5, 6:38 AM CDT | Severe Thunderstorm Warning | ILX | Cass, Mason, Morgan, Schuyler, Scott | 55 min |
| Sep 5, 7:41 AM CDT | Severe Thunderstorm Warning | ILX | Morgan, Sangamon, Scott | 34 min |
| Sep 5, 7:56 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin, Montgomery | 64 min |
| Sep 5, 8:38 AM CDT | Severe Thunderstorm Warning | LSX | Fayette, Montgomery | 37 min |
| Sep 5, 8:46 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Shelby | 44 min |
| Sep 5, 9:40 AM CDT | Severe Thunderstorm Warning | LSX | Fayette | 50 min |
| Sep 5, 9:52 AM CDT | Severe Thunderstorm Warning | ILX | Clay, Effingham | 38 min |
| Sep 5, 10:00 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Fayette, Marion | 48 min |
| Sep 5, 10:23 AM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 32 min |
| Sep 5, 10:31 AM CDT | Severe Thunderstorm Warning | ILX | Clay, Effingham, Jasper, Richland | 59 min |
| Sep 5, 11:07 AM CDT | Severe Thunderstorm Warning | ILX | Lawrence, Richland | 38 min |
| Sep 6, 4:02 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 43 min |
| Sep 6, 4:38 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph, Saint Clair | 37 min |
| Sep 6, 5:42 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Pulaski, Union | 48 min |
| Sep 6, 6:08 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Johnson, Massac, Pulaski, Union | 52 min |
| Sep 6, 6:58 PM CDT | Severe Thunderstorm Warning | PAH | Massac, Pope, Pulaski | 47 min |
| Sep 7, 3:17 AM CDT | Severe Thunderstorm Warning | DVN | Mercer | 13 min |
| Sep 7, 4:29 AM CDT | Severe Thunderstorm Warning | DVN | Henderson, Warren | 31 min |
| Sep 7, 5:20 AM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 40 min |
| Sep 7, 9:26 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, McLean, Tazewell | 49 min |
| Sep 7, 12:08 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 18 min |
| Sep 7, 1:50 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Vermilion | 40 min |
| Sep 7, 2:28 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 37 min |
| Sep 7, 3:00 PM CDT | Severe Thunderstorm Warning | ILX | Marshall, Peoria, Woodford | 41 min |
| Sep 7, 3:36 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 54 min |
| Sep 7, 3:53 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Grundy, Kankakee, Livingston | 37 min |
| Sep 7, 4:00 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey | 45 min |
| Sep 7, 4:11 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 24 min |
| Sep 7, 4:20 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Kankakee | 58 min |
| Sep 7, 4:32 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 43 min |
| Sep 7, 4:58 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair, Washington | 47 min |
| Sep 7, 5:36 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Coles, Douglas, Edgar | 39 min |
| Sep 7, 5:36 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Madison, Montgomery | 54 min |
| Sep 7, 6:12 PM CDT | Severe Thunderstorm Warning | ILX | Coles, Douglas, Edgar | 45 min |
| Sep 7, 6:29 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Cumberland, Effingham, Jasper, Richland, Shelby | 61 min |
| Sep 7, 6:50 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair, Washington | 40 min |
| Sep 7, 7:01 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Wabash, Wayne | 44 min |
| Sep 7, 7:03 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph, Saint Clair | 42 min |
| Sep 7, 7:03 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin, Hardin | 27 min |
| Sep 7, 7:08 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Jefferson, Perry | 52 min |
| Sep 7, 7:12 PM CDT | Severe Thunderstorm Warning | PAH | Union | 33 min |
| Sep 7, 7:13 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Crawford, Lawrence | 62 min |
| Sep 7, 7:26 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Jackson, Williamson | 34 min |
| Sep 7, 7:28 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Johnson, Union, Williamson | 32 min |
| Sep 7, 7:29 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Jasper, Richland | 46 min |
| Sep 7, 7:35 PM CDT | Severe Thunderstorm Warning | LSX | Randolph, Saint Clair, Washington | 20 min |
| Sep 7, 7:43 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Wabash, Wayne | 47 min |
| Sep 7, 7:50 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Hamilton, Johnson, Pope, Saline, Williamson | 25 min |
| Sep 7, 7:55 PM CDT | Severe Thunderstorm Warning | PAH | Franklin, Hamilton, Jefferson, Perry, White | 37 min |
| Sep 7, 8:13 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin, Saline, White | 32 min |
| Sep 7, 8:38 PM CDT | Severe Thunderstorm Warning | PAH | Alexander, Johnson, Pulaski, Union | 37 min |
| Sep 17, 2:36 PM CDT | Severe Thunderstorm Warning | LOT | Winnebago | 54 min |
| Sep 21, 2:30 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Mason, Tazewell | 60 min |
| Sep 21, 3:14 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Macon, Piatt | 46 min |
| Sep 21, 6:42 PM CDT | Severe Thunderstorm Warning | ILX | Clark, Coles, Cumberland | 48 min |
| Sep 21, 7:09 PM CDT | Severe Thunderstorm Warning | ILX | Coles | 36 min |
| Sep 21, 7:49 PM CDT | Severe Thunderstorm Warning | ILX | Clark | 26 min |
| Sep 25, 3:38 AM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Marion | 22 min |
| Sep 25, 4:29 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Madison, Saint Clair | 46 min |
| Sep 25, 4:39 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair | 51 min |
| Sep 25, 5:05 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 55 min |
| Sep 25, 5:09 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey, Madison | 51 min |
| Sep 25, 5:12 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair | 18 min |
| Sep 25, 5:28 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 47 min |
| Sep 25, 5:43 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Washington | 62 min |
| Sep 25, 6:08 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Monroe, Saint Clair | 52 min |
| Sep 25, 6:14 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 46 min |
| Sep 25, 6:30 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 26 min |
| Sep 25, 6:31 PM CDT | Severe Thunderstorm Warning | PAH | Jefferson, Wayne | 44 min |
| Sep 25, 6:43 PM CDT | Severe Thunderstorm Warning | PAH | Jefferson | 23 min |
| Sep 25, 6:45 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Madison, Marion, Washington | 45 min |
| Sep 25, 6:50 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 46 min |
| Sep 25, 7:00 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Wabash | 31 min |
| Sep 25, 7:05 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 40 min |
| Sep 25, 7:29 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Washington | 46 min |
| Sep 25, 7:29 PM CDT | Severe Thunderstorm Warning | PAH | Jefferson | 31 min |
| Sep 25, 8:11 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Madison, Saint Clair | 34 min |
| Sep 25, 8:13 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 47 min |
| Sep 25, 8:38 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Marion | 52 min |
| Sep 26, 3:27 PM CDT | Severe Thunderstorm Warning | PAH | Johnson, Massac, Pulaski, Union | 28 min |
| Sep 26, 7:08 PM CDT | Severe Thunderstorm Warning | PAH | Hardin | 37 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Saint Clair County13
- Clinton County11
- Pulaski County7
- Union County7
- Marion County7
- Monroe County7
- Washington County7
- Madison County7
- Franklin County5
- Alexander County5
- Fayette County5
- Johnson County5
- Jefferson County5
- Edwards County4
- Wayne County4
- Massac County4
- Mercer County4
- Clay County4
- Richland County4
- Clark County4
- Coles County4
- Bond County4
- Hamilton County3
- White County3
- Hardin County3
- Pope County3
- Rock Island County3
- Montgomery County3
- Effingham County3
- Jasper County3
- Randolph County3
- Vermilion County3
- Calhoun County3
- Wabash County3
- Williamson County3
- Cook County2
- DeKalb County2
- DuPage County2
- Kane County2
- Lake County2
51 more counties
- Lee County2
- McHenry County2
- Winnebago County2
- Grundy County2
- Henderson County2
- Warren County2
- Mason County2
- Morgan County2
- Scott County2
- Greene County2
- Macoupin County2
- Shelby County2
- Lawrence County2
- DeWitt County2
- Logan County2
- Tazewell County2
- Champaign County2
- Ford County2
- Kankakee County2
- Jersey County2
- Douglas County2
- Edgar County2
- Cumberland County2
- Gallatin County2
- Perry County2
- Jackson County2
- Saline County2
- Boone County1
- Ogle County1
- Kendall County1
- LaSalle County1
- Will County1
- Henry County1
- Fulton County1
- Knox County1
- Adams County1
- Brown County1
- Pike County1
- Cass County1
- Schuyler County1
- Sangamon County1
- Christian County1
- McLean County1
- Marshall County1
- Peoria County1
- Woodford County1
- Livingston County1
- Iroquois County1
- Crawford County1
- Macon County1
- Piatt County1
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.