Alert archive / Illinois / Severe Thunderstorm Warnings / 2024
Severe Thunderstorm Warnings in Illinois, August 2024
80 severe thunderstorm warnings in August 2024. 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 August 2024. Tap one for its archive.
- Severe Thunderstorm Warnings
- 80
- Busiest day
- August 28, 202416 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 |
|---|---|---|---|---|
| Aug 1, 2:45 AM CDT | Severe Thunderstorm Warning | ILX | Cass, Mason, Menard, Morgan, Sangamon | 45 min |
| Aug 1, 3:07 AM CDT | Severe Thunderstorm Warning | ILX | Logan, Mason, Menard, Sangamon, Tazewell | 38 min |
| Aug 1, 3:40 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, Macon | 35 min |
| Aug 1, 11:47 AM CDT | Severe Thunderstorm Warning | LSX | Marion | 13 min |
| Aug 1, 11:48 AM CDT | Severe Thunderstorm Warning | ILX | Clay | 42 min |
| Aug 1, 11:51 AM CDT | Severe Thunderstorm Warning | PAH | Jefferson, Wayne | 39 min |
| Aug 1, 12:26 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Wabash, Wayne | 49 min |
| Aug 1, 12:28 PM CDT | Severe Thunderstorm Warning | ILX | Clay, Jasper, Richland | 47 min |
| Aug 1, 12:47 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Hamilton, Wabash, Wayne, White | 43 min |
| Aug 1, 12:55 PM CDT | Severe Thunderstorm Warning | ILX | Lawrence, Richland | 50 min |
| Aug 1, 1:02 PM CDT | Severe Thunderstorm Warning | PAH | Wabash, White | 43 min |
| Aug 1, 1:31 PM CDT | Severe Thunderstorm Warning | PAH | Gallatin, White | 44 min |
| Aug 2, 1:38 AM CDT | Severe Thunderstorm Warning | PAH | Johnson, Massac, Pope | 37 min |
| Aug 5, 8:01 AM CDT | Severe Thunderstorm Warning | LOT | Cook | 29 min |
| Aug 5, 8:04 AM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 26 min |
| Aug 5, 8:48 AM CDT | Severe Thunderstorm Warning | LOT | Kankakee, Will | 42 min |
| Aug 5, 5:23 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Whiteside | 23 min |
| Aug 5, 5:24 PM CDT | Severe Thunderstorm Warning | LOT | Lee, Ogle | 51 min |
| Aug 5, 5:58 PM CDT | Severe Thunderstorm Warning | LOT | Lee, Ogle | 47 min |
| Aug 5, 6:34 PM CDT | Severe Thunderstorm Warning | LOT | Lee | 41 min |
| Aug 6, 3:20 AM CDT | Severe Thunderstorm Warning | LOT | Kane, McHenry | 40 min |
| Aug 6, 3:36 AM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Lake | 39 min |
| Aug 6, 4:02 AM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Lake | 43 min |
| Aug 15, 4:09 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 36 min |
| Aug 15, 4:28 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 15 min |
| Aug 15, 4:41 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 49 min |
| Aug 15, 5:03 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 57 min |
| Aug 15, 5:15 PM CDT | Severe Thunderstorm Warning | PAH | Perry | 23 min |
| Aug 15, 5:24 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Union, Williamson | 40 min |
| Aug 15, 5:48 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 42 min |
| Aug 15, 7:52 PM CDT | Severe Thunderstorm Warning | PAH | Johnson, Massac, Pulaski, Union | 38 min |
| Aug 15, 8:25 PM CDT | Severe Thunderstorm Warning | PAH | Johnson, Massac, Pope, Pulaski | 24 min |
| Aug 15, 8:45 PM CDT | Severe Thunderstorm Warning | PAH | Massac, Pope, Pulaski | 45 min |
| Aug 15, 9:51 PM CDT | Severe Thunderstorm Warning | DVN | Henderson | 39 min |
| Aug 15, 10:22 PM CDT | Severe Thunderstorm Warning | DVN | Henderson, McDonough, Warren | 35 min |
| Aug 15, 10:40 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Stark | 37 min |
| Aug 15, 10:59 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox, Peoria, Stark | 46 min |
| Aug 15, 11:22 PM CDT | Severe Thunderstorm Warning | ILX | Marshall, Peoria, Stark, Tazewell, Woodford | 38 min |
| Aug 15, 11:47 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle, Livingston | 58 min |
| Aug 16, 12:10 AM CDT | Severe Thunderstorm Warning | ILX | Marshall, Woodford | 20 min |
| Aug 16, 1:15 AM CDT | Severe Thunderstorm Warning | PAH | Hamilton, Jefferson, Wayne, White | 45 min |
| Aug 16, 3:26 AM CDT | Severe Thunderstorm Warning | ILX | Christian | 34 min |
| Aug 16, 6:40 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, LaSalle, Lee, Ogle | 35 min |
| Aug 16, 6:45 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Kane | 30 min |
| Aug 16, 7:01 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Kane | 44 min |
| Aug 16, 7:08 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, DuPage, Kane, Kendall, LaSalle, Will | 37 min |
| Aug 16, 7:40 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Will | 35 min |
| Aug 16, 8:15 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Will | 45 min |
| Aug 16, 9:29 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Tazewell | 46 min |
| Aug 27, 4:46 PM CDT | Severe Thunderstorm Warning | LOT | Boone, McHenry | 44 min |
| Aug 27, 5:17 PM CDT | Severe Thunderstorm Warning | LOT | McHenry | 73 min |
| Aug 27, 5:45 PM CDT | Severe Thunderstorm Warning | LOT | Lake | 75 min |
| Aug 27, 5:54 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 81 min |
| Aug 27, 6:58 PM CDT | Severe Thunderstorm Warning | ILX | Knox | 32 min |
| Aug 27, 7:31 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 29 min |
| Aug 27, 7:40 PM CDT | Severe Thunderstorm Warning | ILX | Knox, Stark | 35 min |
| Aug 27, 7:41 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 34 min |
| Aug 27, 7:44 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 31 min |
| Aug 27, 8:13 PM CDT | Severe Thunderstorm Warning | DVN | Hancock, Henderson, McDonough, Warren | 47 min |
| Aug 27, 8:18 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Will | 42 min |
| Aug 27, 8:23 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 37 min |
| Aug 27, 8:26 PM CDT | Severe Thunderstorm Warning | ILX | Knox, Marshall, Stark | 39 min |
| Aug 27, 8:34 PM CDT | Severe Thunderstorm Warning | DVN | Henderson, Mercer, Warren | 41 min |
| Aug 27, 8:51 PM CDT | Severe Thunderstorm Warning | DVN | Henderson, McDonough, Warren | 24 min |
| Aug 27, 9:05 PM CDT | Severe Thunderstorm Warning | DVN | Putnam | 25 min |
| Aug 27, 9:10 PM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 50 min |
| Aug 27, 9:17 PM CDT | Severe Thunderstorm Warning | DVN | McDonough, Warren | 21 min |
| Aug 27, 10:40 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Tazewell | 35 min |
| Aug 28, 4:57 AM CDT | Severe Thunderstorm Warning | PAH | Franklin, Jefferson | 33 min |
| Aug 28, 6:42 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 29 min |
| Aug 28, 7:02 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 43 min |
| Aug 29, 3:59 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 26 min |
| Aug 30, 12:41 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 34 min |
| Aug 30, 2:56 PM CDT | Severe Thunderstorm Warning | ILX | Morgan, Scott | 34 min |
| Aug 30, 3:24 PM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 45 min |
| Aug 30, 3:57 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 28 min |
| Aug 30, 4:20 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 38 min |
| Aug 30, 4:23 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Macoupin | 21 min |
| Aug 30, 4:41 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Sangamon | 19 min |
| Aug 30, 4:59 PM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon | 31 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cook County12
- DuPage County8
- Will County6
- Henderson County5
- Warren County5
- Knox County5
- Stark County5
- LaSalle County5
- Tazewell County4
- Wayne County4
- White County4
- Massac County4
- Lee County4
- Kane County4
- Jackson County4
- Randolph County4
- McDonough County4
- Sangamon County3
- Jefferson County3
- Wabash County3
- Johnson County3
- Pope County3
- Ogle County3
- McHenry County3
- Lake County3
- Pulaski County3
- Peoria County3
- Marshall County3
- Christian County3
- DeKalb County3
- Mason County2
- Menard County2
- Morgan County2
- Logan County2
- Macon County2
- Clay County2
- Edwards County2
- Richland County2
- Hamilton County2
- Union County2
28 more counties
- Fulton County2
- Woodford County2
- Calhoun County2
- Jersey County2
- Macoupin County2
- Cass County1
- DeWitt County1
- Marion County1
- Jasper County1
- Lawrence County1
- Gallatin County1
- Kankakee County1
- Carroll County1
- Whiteside County1
- Perry County1
- Williamson County1
- Livingston County1
- Kendall County1
- McLean County1
- Boone County1
- Hancock County1
- Mercer County1
- Putnam County1
- Franklin County1
- Washington County1
- Scott County1
- Montgomery County1
- Iroquois County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.