Alert archive / Illinois / Flash Flood Warnings / 2018
Flash Flood Warnings in Illinois, September 2018
22 flash flood warnings in September 2018. 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 September 2018. Tap one for its archive.
- Flash Flood Warnings
- 22
- Busiest day
- September 8, 201813 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 |
|---|---|---|---|---|
| Sep 6, 5:40 AM CDT | Flash Flood Warning | LSX | Adams | 4 hr |
| Sep 7, 5:06 AM CDT | Flash Flood Warning | ILX | Knox | 14 hr |
| Sep 7, 10:33 AM CDT | Flash Flood Warning | LSX | Adams | 6 hr |
| Sep 7, 12:12 PM CDT | Flash Flood Warning | ILX | DeWitt, Logan, Macon, Menard, Sangamon | 6 hr |
| Sep 7, 2:06 PM CDT | Flash Flood Warning | ILX | Champaign, Macon, Piatt, Vermilion | 6 hr |
| Sep 7, 3:14 PM CDT | Flash Flood Warning | ILX | Cass, Christian, Logan, Macon, Menard, Morgan and 2 more | 6 hr |
| Sep 7, 5:31 PM CDT | Flash Flood Warning | LSX | Bond, Fayette, Macoupin, Montgomery | 6 hr |
| Sep 7, 5:54 PM CDT | Flash Flood Warning | PAH | Wayne | 102 min |
| Sep 7, 7:26 PM CDT | Flash Flood Warning | LSX | Saint Clair | 6 hr |
| Sep 7, 8:34 PM CDT | Flash Flood Warning | LSX | Monroe, Randolph, Saint Clair | 5 hr |
| Sep 7, 10:23 PM CDT | Flash Flood Warning | PAH | Franklin | 3 hr |
| Sep 7, 11:22 PM CDT | Flash Flood Warning | PAH | Wabash | 3 hr |
| Sep 7, 11:36 PM CDT | Flash Flood Warning | PAH | Jackson | 3 hr |
| Sep 7, 11:56 PM CDT | Flash Flood Warning | PAH | Wayne | 3 hr |
| Sep 8, 12:35 AM CDT | Flash Flood Warning | PAH | Franklin, Williamson | 115 min |
| Sep 8, 12:58 AM CDT | Flash Flood Warning | PAH | Jefferson, Perry | 2 hr |
| Sep 8, 2:16 AM CDT | Flash Flood Warning | ILX | Clay, Richland | 6 hr |
| Sep 8, 3:29 AM CDT | Flash Flood Warning | ILX | Jasper | 4 hr |
| Sep 8, 5:47 AM CDT | Flash Flood Warning | ILX | Clark, Crawford | 3 hr |
| Sep 8, 10:43 AM CDT | Flash Flood Warning | PAH | Edwards, Franklin, Hamilton, Jefferson, Perry, Wabash and 2 more | 6 hr |
| Sep 8, 1:40 PM CDT | Flash Flood Warning | ILX | Clay, Crawford, Jasper, Lawrence, Richland | 4 hr |
| Sep 25, 8:10 AM CDT | Flash Flood Warning | PAH | Hamilton | 3 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Macon County3
- Wayne County3
- Franklin County3
- Adams County2
- Logan County2
- Menard County2
- Sangamon County2
- Saint Clair County2
- Wabash County2
- Jefferson County2
- Perry County2
- Clay County2
- Richland County2
- Jasper County2
- Crawford County2
- Hamilton County2
- Knox County1
- DeWitt County1
- Champaign County1
- Piatt County1
- Vermilion County1
- Cass County1
- Christian County1
- Morgan County1
- Scott County1
- Bond County1
- Fayette County1
- Macoupin County1
- Montgomery County1
- Monroe County1
- Randolph County1
- Jackson County1
- Williamson County1
- Clark County1
- Edwards County1
- White County1
- Lawrence County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.