Alert archive / Illinois / Flash Flood Warnings / 2019
Flash Flood Warnings in Illinois, September 2019
28 flash flood warnings in September 2019. 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 2019. Tap one for its archive.
- Flash Flood Warnings
- 28
- Busiest day
- September 28, 20199 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 1, 4:46 AM CDT | Flash Flood Warning | ILX | Sangamon | 10 hr |
| Sep 1, 6:33 AM CDT | Flash Flood Warning | LSX | Montgomery | 5 hr |
| Sep 11, 10:08 PM CDT | Flash Flood Warning | DVN | Jo Daviess | 6 hr |
| Sep 11, 10:56 PM CDT | Flash Flood Warning | DVN | Stephenson | 5 hr |
| Sep 11, 11:44 PM CDT | Flash Flood Warning | DVN | Stephenson | 2 hr |
| Sep 12, 2:53 AM CDT | Flash Flood Warning | LOT | Lake, McHenry | 3 hr |
| Sep 12, 7:16 PM CDT | Flash Flood Warning | DVN | Jo Daviess | 5 hr |
| Sep 12, 9:12 PM CDT | Flash Flood Warning | DVN | Jo Daviess, Stephenson | 6 hr |
| Sep 12, 11:18 PM CDT | Flash Flood Warning | DVN | Stephenson | 6 hr |
| Sep 13, 12:38 AM CDT | Flash Flood Warning | LOT | Boone, DeKalb, Kane, Lake, McHenry, Ogle and 1 more | 6 hr |
| Sep 15, 3:19 AM CDT | Flash Flood Warning | DVN | Jo Daviess | 4 hr |
| Sep 15, 4:23 AM CDT | Flash Flood Warning | DVN | Carroll, Jo Daviess | 3 hr |
| Sep 15, 4:42 AM CDT | Flash Flood Warning | DVN | Mercer, Rock Island | 3 hr |
| Sep 15, 5:26 AM CDT | Flash Flood Warning | DVN | Whiteside | 3 hr |
| Sep 19, 8:50 AM CDT | Flash Flood Warning | DVN | Jo Daviess | 6 hr |
| Sep 19, 9:34 AM CDT | Flash Flood Warning | DVN | Jo Daviess, Stephenson | 6 hr |
| Sep 27, 1:32 PM CDT | Flash Flood Warning | ILX | Peoria, Tazewell, Woodford | 3 hr |
| Sep 27, 1:37 PM CDT | Flash Flood Warning | LOT | LaSalle, Livingston | 4 hr |
| Sep 27, 7:03 PM CDT | Flash Flood Warning | DVN | Bureau, Henry, Putnam | 6 hr |
| Sep 27, 7:16 PM CDT | Flash Flood Warning | ILX | Knox, Marshall, Peoria, Stark | 6 hr |
| Sep 27, 7:37 PM CDT | Flash Flood Warning | LOT | Grundy, Kendall, LaSalle | 6 hr |
| Sep 27, 7:48 PM CDT | Flash Flood Warning | LOT | Cook, DuPage, Kankakee, Will | 6 hr |
| Sep 27, 7:58 PM CDT | Flash Flood Warning | ILX | Fulton, Knox | 6 hr |
| Sep 27, 8:19 PM CDT | Flash Flood Warning | DVN | Hancock, McDonough | 6 hr |
| Sep 27, 8:36 PM CDT | Flash Flood Warning | ILX | Peoria, Tazewell, Woodford | 6 hr |
| Sep 27, 9:02 PM CDT | Flash Flood Warning | LOT | Grundy, LaSalle, Livingston | 6 hr |
| Sep 27, 9:04 PM CDT | Flash Flood Warning | DVN | Henderson, Warren | 6 hr |
| Sep 28, 11:35 PM CDT | Flash Flood Warning | DVN | Rock Island | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jo Daviess County7
- Stephenson County5
- Peoria County3
- LaSalle County3
- Lake County2
- McHenry County2
- Rock Island County2
- Tazewell County2
- Woodford County2
- Livingston County2
- Knox County2
- Grundy County2
- Sangamon County1
- Montgomery County1
- Boone County1
- DeKalb County1
- Kane County1
- Ogle County1
- Winnebago County1
- Carroll County1
- Mercer County1
- Whiteside County1
- Bureau County1
- Henry County1
- Putnam County1
- Marshall County1
- Stark County1
- Kendall County1
- Cook County1
- DuPage County1
- Kankakee County1
- Will County1
- Fulton County1
- Hancock County1
- McDonough County1
- Henderson County1
- Warren County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.