Alert archive / Illinois / Red Flag Warnings / 2011
Red Flag Warnings in Illinois, April 2011
3 red flag warnings in April 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 red flag warnings reaches back to 2005.
Red Flag Warnings by county
Each county as a circle sized by its count in April 2011. Tap one for its archive.
- Red Flag Warnings
- 3
- Busiest day
- April 6, 20112 red flag 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 |
|---|---|---|---|---|
| Apr 3, 8:15 AM CDT | Red Flag Warning | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 11 hr |
| Apr 6, 5:30 AM CDT | Red Flag Warning | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 14 hr |
| Apr 6, 5:34 AM CDT | Red Flag Warning | LSX | Bond, Calhoun, Clinton, Jersey, Madison, Marion and 4 more | 13 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Alexander County2
- Edwards County2
- Franklin County2
- Gallatin County2
- Hamilton County2
- Hardin County2
- Jackson County2
- Jefferson County2
- Johnson County2
- Massac County2
- Perry County2
- Pope County2
- Pulaski County2
- Saline County2
- Union County2
- Wabash County2
- Wayne County2
- White County2
- Williamson County2
- Bond County1
- Calhoun County1
- Clinton County1
- Jersey County1
- Madison County1
- Marion County1
- Monroe County1
- Randolph County1
- Saint Clair County1
- Washington 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.