Alert archive / Illinois / Flash Flood Warnings / 2009
Flash Flood Warnings in Illinois, June 2009
26 flash flood warnings in June 2009. 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 June 2009. Tap one for its archive.
- Flash Flood Warnings
- 26
- Busiest day
- June 11, 20097 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 |
|---|---|---|---|---|
| Jun 1, 5:37 PM CDT | Flash Flood Warning | LOT | Boone, McHenry, Winnebago | 4 hr |
| Jun 1, 6:54 PM CDT | Flash Flood Warning | DVN | Hancock, McDonough | 8 hr |
| Jun 1, 8:09 PM CDT | Flash Flood Warning | ILX | Vermilion | 6 hr |
| Jun 8, 1:44 AM CDT | Flash Flood Warning | LOT | Boone, DeKalb, Kane, LaSalle, Lee, McHenry and 2 more | 8 hr |
| Jun 8, 6:46 PM CDT | Flash Flood Warning | LSX | Clinton, Saint Clair, Washington | 6 hr |
| Jun 8, 8:31 PM CDT | Flash Flood Warning | LSX | Monroe, Randolph | 6 hr |
| Jun 10, 8:58 PM CDT | Flash Flood Warning | LSX | Monroe, Saint Clair | 6 hr |
| Jun 11, 12:33 AM CDT | Flash Flood Warning | PAH | Gallatin, Hamilton, Saline, White | 3 hr |
| Jun 11, 2:00 AM CDT | Flash Flood Warning | DVN | Hancock | 5 hr |
| Jun 11, 2:45 AM CDT | Flash Flood Warning | LOT | Kankakee, Will | 86 min |
| Jun 11, 4:15 AM CDT | Flash Flood Warning | LOT | Kankakee, Will | 10 hr |
| Jun 11, 5:00 AM CDT | Flash Flood Warning | LOT | Grundy, LaSalle | 10 hr |
| Jun 11, 8:11 AM CDT | Flash Flood Warning | LOT | Cook, Will | 6 hr |
| Jun 16, 5:44 PM CDT | Flash Flood Warning | LOT | Cook, Kankakee, Will | 6 hr |
| Jun 19, 9:17 AM CDT | Flash Flood Warning | LOT | Boone, DeKalb, Kane, McHenry, Ogle, Winnebago | 4 hr |
| Jun 19, 10:03 AM CDT | Flash Flood Warning | LOT | Cook, DuPage, Lake | 4 hr |
| Jun 19, 5:09 PM CDT | Flash Flood Warning | DVN | Carroll, Jo Daviess, Stephenson | 3 hr |
| Jun 19, 5:12 PM CDT | Flash Flood Warning | DVN | Mercer, Rock Island | 91 min |
| Jun 19, 5:36 PM CDT | Flash Flood Warning | LOT | Boone, DeKalb, Lee, Ogle, Winnebago | 6 hr |
| Jun 19, 6:00 PM CDT | Flash Flood Warning | LOT | Cook, DuPage, Kane, Lake, McHenry | 6 hr |
| Jun 20, 12:45 AM CDT | Flash Flood Warning | ILX | Clay, Crawford, Effingham, Jasper | 4 hr |
| Jun 20, 6:53 PM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Jun 21, 5:36 PM CDT | Flash Flood Warning | ILX | Jasper | 4 hr |
| Jun 22, 4:25 PM CDT | Flash Flood Warning | PAH | Johnson, Williamson | 2 hr |
| Jun 24, 1:54 PM CDT | Flash Flood Warning | LOT | Cook | 117 min |
| Jun 24, 3:45 PM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cook County5
- Boone County4
- McHenry County4
- Winnebago County4
- Will County4
- DeKalb County3
- Kane County3
- Ogle County3
- Kankakee County3
- Hancock County2
- LaSalle County2
- Lee County2
- Saint Clair County2
- Monroe County2
- DuPage County2
- Lake County2
- Jasper County2
- Fayette County2
- McDonough County1
- Vermilion County1
- Clinton County1
- Washington County1
- Randolph County1
- Gallatin County1
- Hamilton County1
- Saline County1
- White County1
- Grundy County1
- Carroll County1
- Jo Daviess County1
- Stephenson County1
- Mercer County1
- Rock Island County1
- Clay County1
- Crawford County1
- Effingham County1
- Johnson County1
- Williamson County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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. Warning verification from the Mesonet's Cow. Rebuilt daily.