Winter Storm Warnings in Illinois
328 winter storm warnings since 1986. 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 winter storm warnings reaches back to 2005.
Winter Storm Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Winter Storm Warnings
- 328
- Busiest year
- 200831 winter storm warnings
- Average year
- 15over 22 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jo Daviess County63
- Carroll County60
- Stephenson County57
- Whiteside County57
- Lake County56
- McHenry County55
- Boone County52
- Winnebago County52
- Ogle County50
- Rock Island County50
- DeKalb County48
- Lee County48
- Putnam County48
- Henry County47
- Bureau County46
- Kane County45
- DuPage County43
- Kendall County42
- LaSalle County42
- Grundy County39
- Mercer County37
- Henderson County36
- Warren County34
- Marshall County33
- Perry County33
- Massac County33
- Pope County33
- Knox County32
- Franklin County32
- Jackson County32
- Jefferson County32
- Alexander County32
- Hardin County32
- Adams County31
- Peoria County31
- Stark County31
- Union County31
- Williamson County31
- Gallatin County30
- White County30
62 more counties
- Hancock County30
- Kankakee County30
- McLean County30
- Washington County30
- Wayne County30
- Johnson County30
- Pulaski County30
- Edwards County29
- Wabash County29
- Bond County29
- Brown County29
- Calhoun County29
- Champaign County29
- Iroquois County29
- Jersey County29
- McDonough County29
- Madison County29
- Marion County29
- Montgomery County29
- Saint Clair County29
- Vermilion County29
- Hamilton County29
- Saline County29
- Clinton County28
- Ford County28
- Greene County28
- Macoupin County28
- Monroe County28
- Pike County28
- Woodford County28
- DeWitt County27
- Douglas County27
- Edgar County27
- Fayette County27
- Livingston County27
- Piatt County27
- Randolph County27
- Fulton County26
- Coles County25
- Macon County25
- Moultrie County25
- Schuyler County25
- Tazewell County25
- Logan County24
- Menard County24
- Morgan County24
- Scott County24
- Shelby County24
- Jasper County24
- Cass County23
- Christian County23
- Clark County23
- Sangamon County23
- Crawford County23
- Cumberland County22
- Clay County22
- Effingham County22
- Mason County21
- Richland County21
- Lawrence County20
- Cook County13
- Will County10
The latest winter storm warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 9:27 AM CDT | Winter Storm Warning | LOT | Boone, Lee, Ogle, Winnebago | 9 hr |
| Jan 29, 8:48 PM CST | Winter Storm Warning | LOT | Cook | 30 hr |
| Jan 25, 9:23 AM CST | Winter Storm Warning | LOT | Cook | 15 hr |
| Jan 23, 2:17 AM CST | Winter Storm Warning | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 19 more | 64 hr |
| Jan 22, 1:15 PM CST | Winter Storm Warning | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 9 more | 3 days |
| Jan 22, 11:58 AM CST | Winter Storm Warning | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 3 days |
Nearby
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.