Alert archive / Illinois / Flash Flood Watches / 2009
Flash Flood Watches in Illinois, April 2009
5 flash flood watches in April 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 watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count in April 2009. Tap one for its archive.
- Flash Flood Watches
- 5
- Busiest day
- April 29, 20094 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 |
|---|---|---|---|---|
| Apr 26, 3:04 AM CDT | Flash Flood Watch | DVN | Jo Daviess | 24 hr |
| Apr 29, 3:53 AM CDT | Flash Flood Watch | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 36 hr |
| Apr 29, 3:10 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 20 hr |
| Apr 29, 3:11 PM CDT | Flash Flood Watch | ILX | Cass, Christian, Fulton, Knox, Logan, McLean and 11 more | 19 hr |
| Apr 29, 3:35 PM CDT | Flash Flood Watch | DVN | Hancock, Henderson, McDonough, Putnam, Warren | 19 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jo Daviess County1
- Adams County1
- Bond County1
- Brown County1
- Calhoun County1
- Clinton County1
- Fayette County1
- Greene County1
- Jersey County1
- Macoupin County1
- Madison County1
- Marion County1
- Monroe County1
- Montgomery County1
- Pike County1
- Randolph County1
- Saint Clair County1
- Washington County1
- Boone County1
- DeKalb County1
- DuPage County1
- Ford County1
- Grundy County1
- Iroquois County1
- Kane County1
- Kankakee County1
- Kendall County1
- Lake County1
- LaSalle County1
- Lee County1
- Livingston County1
- McHenry County1
- Ogle County1
- Winnebago County1
- Cass County1
- Christian County1
- Fulton County1
- Knox County1
- Logan County1
- McLean 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.