Alert archive / Illinois / Red Flag Warnings
Red Flag Warnings in Illinois, 2020
11 red flag warnings in 2020. 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 2020. Tap one for its archive.
- Red Flag Warnings
- 11
- Busiest month
- October7 red flag warnings
- Busiest day
- October 16, 20204 red flag warnings
Over time
By month
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 |
|---|---|---|---|---|
| Mar 5, 2:56 AM CST | Red Flag Warning | DVN | Hancock, Henderson, McDonough, Mercer, Warren | 15 hr |
| Mar 5, 3:17 AM CST | Red Flag Warning | LSX | Adams | 15 hr |
| Oct 14, 3:44 AM CDT | Red Flag Warning | LOT | Cook, DuPage, Ford, Grundy, Iroquois, Kane and 5 more | 15 hr |
| Oct 14, 4:01 AM CDT | Red Flag Warning | LSX | Calhoun, Greene, Jersey, Macoupin, Madison, Monroe and 2 more | 14 hr |
| Oct 14, 4:19 AM CDT | Red Flag Warning | ILX | Cass, Champaign, Christian, Coles, DeWitt, Douglas and 15 more | 15 hr |
| Oct 16, 2:29 PM CDT | Red Flag Warning | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 30 hr |
| Oct 16, 2:34 PM CDT | Red Flag Warning | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 27 hr |
| Oct 16, 2:52 PM CDT | Red Flag Warning | LOT | Cook, DeKalb, DuPage, Ford, Grundy, Iroquois and 7 more | 29 hr |
| Oct 16, 3:25 PM CDT | Red Flag Warning | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 28 hr |
| Nov 19, 3:07 AM CST | Red Flag Warning | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 15 hr |
| Nov 19, 3:25 AM CST | Red Flag Warning | LSX | Clinton, Madison, Monroe, Randolph, Saint Clair, Washington | 14 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Madison County3
- Monroe County3
- Saint Clair County3
- Adams County2
- Cook County2
- DuPage County2
- Ford County2
- Grundy County2
- Iroquois County2
- Kane County2
- Kankakee County2
- Kendall County2
- LaSalle County2
- Livingston County2
- Will County2
- Calhoun County2
- Greene County2
- Jersey County2
- Macoupin County2
- Montgomery County2
- Cass County2
- Champaign County2
- Christian County2
- Coles County2
- DeWitt County2
- Douglas County2
- Edgar County2
- Logan County2
- McLean County2
- Macon County2
- Mason County2
- Menard County2
- Morgan County2
- Moultrie County2
- Piatt County2
- Sangamon County2
- Scott County2
- Shelby County2
- Tazewell County2
- Vermilion County2
49 more counties
- Woodford County2
- Clinton County2
- Randolph County2
- Washington County2
- 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
- Hancock County1
- Henderson County1
- McDonough County1
- Mercer County1
- Warren County1
- Clark County1
- Clay County1
- Crawford County1
- Cumberland County1
- Effingham County1
- Fulton County1
- Jasper County1
- Knox County1
- Lawrence County1
- Marshall County1
- Peoria County1
- Richland County1
- Schuyler County1
- Stark County1
- Bond County1
- Brown County1
- Fayette County1
- Marion County1
- Pike County1
- DeKalb County1
- Lee County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.