Alert archive / Illinois / Red Flag Warnings / 2025
Red Flag Warnings in Illinois, March 2025
14 red flag warnings in March 2025. 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 March 2025. Tap one for its archive.
- Red Flag Warnings
- 14
- Busiest day
- March 14, 20254 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 |
|---|---|---|---|---|
| Mar 10, 3:24 AM CDT | Red Flag Warning | DVN | Mercer, Rock Island | 17 hr |
| Mar 14, 2:20 AM CDT | Red Flag Warning | ILX | Fulton, Knox, McLean, Marshall, Peoria, Stark and 2 more | 18 hr |
| Mar 14, 2:31 AM CDT | Red Flag Warning | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 19 hr |
| Mar 14, 3:32 AM CDT | Red Flag Warning | LSX | Adams | 13 hr |
| Mar 14, 4:11 AM CDT | Red Flag Warning | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 20 hr |
| Mar 16, 2:43 PM CDT | Red Flag Warning | LSX | Adams, Brown, Calhoun, Greene, Jersey, Pike | 29 hr |
| Mar 17, 2:59 AM CDT | Red Flag Warning | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 17 hr |
| Mar 17, 3:02 AM CDT | Red Flag Warning | ILX | Cass, Fulton, Knox, Marshall, Mason, Morgan and 6 more | 17 hr |
| Mar 18, 9:06 PM CDT | Red Flag Warning | PAH | Alexander, Franklin, Hamilton, Jackson, Jefferson, Johnson and 6 more | 23 hr |
| Mar 18, 9:07 PM CDT | Red Flag Warning | DVN | Hancock, McDonough | 17 hr |
| Mar 18, 9:07 PM CDT | Red Flag Warning | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 22 hr |
| Mar 18, 9:17 PM CDT | Red Flag Warning | ILX | Cass, Christian, Clay, DeWitt, Effingham, Fulton and 11 more | 22 hr |
| Mar 20, 2:30 PM CDT | Red Flag Warning | LSX | Adams, Bond, Brown, Calhoun, Clinton, Greene and 9 more | 29 hr |
| Mar 20, 2:41 PM CDT | Red Flag Warning | PAH | Alexander, Jackson, Johnson, Perry, Pulaski, Union and 1 more | 28 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adams County4
- Mercer County3
- Rock Island County3
- Fulton County3
- Hancock County3
- McDonough County3
- Brown County3
- Calhoun County3
- Greene County3
- Jersey County3
- Pike County3
- Knox County2
- Marshall County2
- Peoria County2
- Stark County2
- Tazewell County2
- Woodford County2
- Bureau County2
- Carroll County2
- Henderson County2
- Henry County2
- Jo Daviess County2
- Putnam County2
- Stephenson County2
- Warren County2
- Whiteside County2
- Cass County2
- Mason County2
- Morgan County2
- Schuyler County2
- Scott County2
- Alexander County2
- Jackson County2
- Johnson County2
- Perry County2
- Pulaski County2
- Union County2
- Williamson County2
- Bond County2
- Clinton County2
44 more counties
- Macoupin County2
- Madison County2
- Monroe County2
- Montgomery County2
- Randolph County2
- Saint Clair County2
- Washington County2
- McLean County1
- Boone County1
- Cook 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
- Will County1
- Winnebago County1
- Franklin County1
- Hamilton County1
- Jefferson County1
- Saline County1
- Wayne County1
- Fayette County1
- Marion County1
- Christian County1
- Clay County1
- DeWitt County1
- Effingham County1
- Logan County1
- Macon County1
- Menard County1
- Moultrie County1
- Piatt County1
- Sangamon County1
- Shelby County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
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.