Alert archive / Illinois / Red Flag Warnings / 2012
Red Flag Warnings in Illinois, April 2012
6 red flag warnings in April 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 red flag warnings reaches back to 2005.
Red Flag Warnings by county
Each county as a circle sized by its count in April 2012. Tap one for its archive.
- Red Flag Warnings
- 6
- Busiest day
- April 9, 20122 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 8, 4:47 AM CDT | Red Flag Warning | LOT | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 9 more | 14 hr |
| Apr 9, 3:54 AM CDT | Red Flag Warning | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 15 hr |
| Apr 9, 4:49 AM CDT | Red Flag Warning | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 15 hr |
| Apr 10, 4:14 AM CDT | Red Flag Warning | PAH | Wabash | 15 hr |
| Apr 10, 7:34 AM CDT | Red Flag Warning | LOT | Ford, Grundy, Iroquois, Kankakee, Kendall, LaSalle and 2 more | 11 hr |
| Apr 22, 5:37 PM CDT | Red Flag Warning | LOT | Cook, DeKalb, DuPage, Ford, Grundy, Iroquois and 8 more | 25 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Grundy County4
- Kankakee County4
- Kendall County4
- LaSalle County4
- Will County4
- Cook County3
- DeKalb County3
- DuPage County3
- Kane County3
- Lee County3
- Ogle County3
- Ford County3
- Iroquois County3
- Livingston County3
- Boone County2
- Lake County2
- McHenry County2
- Winnebago County2
- 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
- Lawrence County1
- Logan County1
- McLean County1
- Macon County1
- Marshall County1
- Mason County1
- Menard County1
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.