Alert archive / Illinois / Flash Flood Warnings / 2012
Flash Flood Warnings in Illinois, May 2012
21 flash flood warnings in May 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 flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in May 2012. Tap one for its archive.
- Flash Flood Warnings
- 21
- Busiest day
- May 4, 20128 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 3, 7:23 PM CDT | Flash Flood Warning | LOT | Cook, DuPage | 4 hr |
| May 3, 8:39 PM CDT | Flash Flood Warning | ILX | Marshall | 6 hr |
| May 3, 10:10 PM CDT | Flash Flood Warning | LOT | Cook | 5 hr |
| May 3, 10:20 PM CDT | Flash Flood Warning | DVN | Rock Island | 6 hr |
| May 3, 10:44 PM CDT | Flash Flood Warning | DVN | Henry, Mercer, Rock Island | 6 hr |
| May 4, 12:26 AM CDT | Flash Flood Warning | DVN | Bureau, Putnam | 6 hr |
| May 4, 12:46 AM CDT | Flash Flood Warning | LOT | LaSalle, Livingston | 6 hr |
| May 4, 2:29 AM CDT | Flash Flood Warning | ILX | Marshall | 6 hr |
| May 6, 3:19 PM CDT | Flash Flood Warning | LOT | Ford, Grundy, Iroquois, Kankakee, Livingston | 6 hr |
| May 6, 3:39 PM CDT | Flash Flood Warning | LOT | Grundy, LaSalle, Livingston | 6 hr |
| May 6, 5:15 PM CDT | Flash Flood Warning | LOT | Ford, Iroquois | 6 hr |
| May 6, 6:09 PM CDT | Flash Flood Warning | ILX | Vermilion | 6 hr |
| May 6, 11:22 PM CDT | Flash Flood Warning | LOT | Grundy, Kendall, LaSalle, Livingston | 8 hr |
| May 6, 11:24 PM CDT | Flash Flood Warning | LOT | Cook, Grundy, Kankakee, Kendall, Will | 6 hr |
| May 7, 12:26 AM CDT | Flash Flood Warning | LOT | Ford, Iroquois, Kankakee | 7 hr |
| May 7, 1:43 AM CDT | Flash Flood Warning | LOT | Iroquois | 6 hr |
| May 7, 3:56 AM CDT | Flash Flood Warning | LOT | Ford, Livingston | 4 hr |
| May 20, 4:00 PM CDT | Flash Flood Warning | ILX | Effingham | 6 hr |
| May 20, 5:06 PM CDT | Flash Flood Warning | LSX | Marion | 4 hr |
| May 20, 7:05 PM CDT | Flash Flood Warning | LSX | Fayette | 4 hr |
| May 26, 5:23 AM CDT | Flash Flood Warning | LOT | Winnebago | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Livingston County5
- Ford County4
- Grundy County4
- Iroquois County4
- Cook County3
- LaSalle County3
- Kankakee County3
- Marshall County2
- Rock Island County2
- Kendall County2
- DuPage County1
- Henry County1
- Mercer County1
- Bureau County1
- Putnam County1
- Vermilion County1
- Will County1
- Effingham County1
- Marion County1
- Fayette County1
- Winnebago 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.