Alert archive / Illinois / Flash Flood Warnings / 2024
Flash Flood Warnings in Illinois, May 2024
21 flash flood warnings in May 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 flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in May 2024. Tap one for its archive.
- Flash Flood Warnings
- 21
- Busiest day
- May 24, 20248 flash flood 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 |
|---|---|---|---|---|
| May 2, 6:37 PM CDT | Flash Flood Warning | DVN | McDonough | 4 hr |
| May 4, 8:37 PM CDT | Flash Flood Warning | PAH | Franklin, Jefferson, Perry | 2 hr |
| May 8, 3:09 PM CDT | Flash Flood Warning | PAH | Jackson, Perry | 3 hr |
| May 8, 3:57 PM CDT | Flash Flood Warning | PAH | Franklin, Williamson | 4 hr |
| May 8, 4:53 PM CDT | Flash Flood Warning | PAH | Gallatin, Saline | 4 hr |
| May 8, 5:11 PM CDT | Flash Flood Warning | PAH | Hardin | 4 hr |
| May 13, 5:48 PM CDT | Flash Flood Warning | LOT | Lake | 112 min |
| May 19, 8:46 PM CDT | Flash Flood Warning | ILX | Macon | 3 hr |
| May 24, 1:19 PM CDT | Flash Flood Warning | ILX | Champaign | 3 hr |
| May 24, 1:47 PM CDT | Flash Flood Warning | LSX | Macoupin, Montgomery | 8 hr |
| May 24, 2:48 PM CDT | Flash Flood Warning | ILX | Champaign, Christian, Douglas, Macon, Moultrie, Piatt and 2 more | 3 hr |
| May 24, 3:13 PM CDT | Flash Flood Warning | LSX | Greene, Jersey, Macoupin | 6 hr |
| May 24, 4:13 PM CDT | Flash Flood Warning | ILX | Morgan, Scott | 4 hr |
| May 24, 4:30 PM CDT | Flash Flood Warning | LSX | Calhoun, Greene, Pike | 6 hr |
| May 24, 5:34 PM CDT | Flash Flood Warning | LSX | Calhoun, Greene, Jersey, Macoupin | 6 hr |
| May 24, 5:48 PM CDT | Flash Flood Warning | LSX | Calhoun | 3 hr |
| May 26, 7:37 AM CDT | Flash Flood Warning | PAH | Alexander | 10 hr |
| May 26, 8:09 AM CDT | Flash Flood Warning | PAH | Alexander, Pulaski, Union | 9 hr |
| May 26, 8:16 AM CDT | Flash Flood Warning | PAH | Union, Williamson | 3 hr |
| May 26, 7:32 PM CDT | Flash Flood Warning | PAH | Saline, Williamson | 6 hr |
| May 26, 7:46 PM CDT | Flash Flood Warning | PAH | Gallatin | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Williamson County3
- Macoupin County3
- Greene County3
- Calhoun County3
- Franklin County2
- Perry County2
- Gallatin County2
- Saline County2
- Macon County2
- Champaign County2
- Jersey County2
- Alexander County2
- Union County2
- McDonough County1
- Jefferson County1
- Jackson County1
- Hardin County1
- Lake County1
- Montgomery County1
- Christian County1
- Douglas County1
- Moultrie County1
- Piatt County1
- Sangamon County1
- Vermilion County1
- Morgan County1
- Scott County1
- Pike County1
- Pulaski 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.