Alert archive / Illinois / Flash Flood Watches / 2011
Flash Flood Watches in Illinois, May 2011
5 flash flood watches in May 2011. 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 2011. Tap one for its archive.
- Flash Flood Watches
- 5
- Busiest day
- May 25, 20113 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, 4:30 AM CDT | Flash Flood Watch | LSX | Bond, Clinton, Fayette, Marion, Monroe, Randolph and 2 more | 42 hr |
| May 24, 3:44 PM CDT | Flash Flood Watch | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 32 hr |
| May 25, 2:38 AM CDT | Flash Flood Watch | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 2 more | 20 hr |
| May 25, 1:20 PM CDT | Flash Flood Watch | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 10 hr |
| May 25, 1:57 PM CDT | Flash Flood Watch | LOT | DuPage, Ford, Grundy, Iroquois, Kane, Kankakee and 3 more | 9 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bond County2
- Clinton County2
- Fayette County2
- Marion County2
- Monroe County2
- Randolph County2
- Saint Clair County2
- Washington County2
- Adams County1
- Brown County1
- Calhoun County1
- Greene County1
- Jersey County1
- Macoupin County1
- Madison County1
- Montgomery County1
- Pike County1
- Bureau County1
- Hancock County1
- Henderson County1
- Henry County1
- McDonough County1
- Mercer County1
- Putnam County1
- Warren County1
- Cass County1
- Champaign County1
- Christian County1
- Clark County1
- Clay County1
- Coles County1
- Crawford County1
- Cumberland County1
- DeWitt County1
- Douglas County1
- Edgar County1
- Effingham County1
- Fulton County1
- Jasper County1
- Knox County1
29 more counties
- Lawrence County1
- Logan County1
- McLean County1
- Macon County1
- Marshall County1
- Mason County1
- Menard County1
- Morgan County1
- Moultrie County1
- Peoria County1
- Piatt County1
- Richland County1
- Sangamon County1
- Schuyler County1
- Scott County1
- Shelby County1
- Stark County1
- Tazewell County1
- Vermilion County1
- Woodford County1
- DuPage County1
- Ford County1
- Grundy County1
- Iroquois County1
- Kane County1
- Kankakee County1
- Kendall County1
- LaSalle County1
- Livingston County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.