Alert archive / Illinois / Flash Flood Watches / 2012
Flash Flood Watches in Illinois, May 2012
7 flash flood watches 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 watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count in May 2012. Tap one for its archive.
- Flash Flood Watches
- 7
- Busiest day
- May 4, 20123 flash flood watches
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 1, 2:01 AM CDT | Flash Flood Watch | LSX | Bond, Calhoun, Clinton, Greene, Jersey, Macoupin and 5 more | 7 hr |
| May 1, 9:12 PM CDT | Flash Flood Watch | ILX | Sangamon | 8 hr |
| May 3, 8:43 PM CDT | Flash Flood Watch | LOT | DuPage, Grundy, Kankakee, Kendall, LaSalle, Livingston | 7 hr |
| May 3, 11:59 PM CDT | Flash Flood Watch | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 3 more | 9 hr |
| May 4, 3:31 PM CDT | Flash Flood Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, McDonough and 5 more | 11 hr |
| May 6, 3:56 AM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 27 hr |
| May 6, 4:07 AM CDT | Flash Flood Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 16 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bureau County3
- Hancock County3
- Henderson County3
- Henry County3
- McDonough County3
- Mercer County3
- Putnam County3
- Rock Island County3
- Warren County3
- DuPage County2
- Grundy County2
- Kankakee County2
- Kendall County2
- LaSalle County2
- Livingston County2
- Carroll County2
- Whiteside County2
- Bond County1
- Calhoun County1
- Clinton County1
- Greene County1
- Jersey County1
- Macoupin County1
- Madison County1
- Monroe County1
- Montgomery County1
- Saint Clair County1
- Washington County1
- Sangamon County1
- Boone County1
- DeKalb County1
- Ford County1
- Iroquois County1
- Kane County1
- Lake County1
- Lee County1
- McHenry County1
- Ogle County1
- Winnebago County1
- Jo Daviess County1
1 more counties
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.