Alert archive / Illinois / Winter Storm Warnings
Winter Storm Warnings in Illinois, 2009
15 winter storm warnings in 2009. 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 in 2009. Tap one for its archive.
- Winter Storm Warnings
- 15
- Busiest month
- January5 winter storm warnings
- Busiest day
- January 26, 20093 winter storm 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 |
|---|---|---|---|---|
| Jan 10, 3:04 AM CST | Winter Storm Warning | DVN | Jo Daviess, Stephenson | 9 hr |
| Jan 14, 6:52 AM CST | Winter Storm Warning | LOT | Grundy, Kankakee, Kendall, LaSalle | 17 hr |
| Jan 26, 3:35 AM CST | Winter Storm Warning | ILX | Clay, Crawford, Effingham, Jasper, Lawrence, Richland | 44 hr |
| Jan 26, 4:05 AM CST | Winter Storm Warning | LSX | Bond, Clinton, Fayette, Madison, Marion, Monroe and 3 more | 50 hr |
| Jan 26, 4:23 AM CST | Winter Storm Warning | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 55 hr |
| Feb 20, 3:41 AM CST | Winter Storm Warning | LOT | Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more | 34 hr |
| Feb 20, 4:17 AM CST | Winter Storm Warning | DVN | Carroll, Jo Daviess, Stephenson, Whiteside | 35 hr |
| Mar 28, 3:33 AM CDT | Winter Storm Warning | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 24 hr |
| Mar 28, 3:40 AM CDT | Winter Storm Warning | LOT | Boone, DeKalb, Kane, Kendall, Lake, LaSalle and 4 more | 24 hr |
| Apr 4, 3:43 PM CDT | Winter Storm Warning | DVN | Jo Daviess, Stephenson | 28 hr |
| Dec 7, 2:26 PM CST | Winter Storm Warning | LSX | Adams | 31 hr |
| Dec 7, 2:59 PM CST | Winter Storm Warning | ILX | Knox, Stark | 51 hr |
| Dec 7, 3:45 PM CST | Winter Storm Warning | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 50 hr |
| Dec 7, 9:35 PM CST | Winter Storm Warning | LOT | Boone, DeKalb, Lake, Lee, McHenry, Ogle and 1 more | 42 hr |
| Dec 26, 1:19 PM CST | Winter Storm Warning | LOT | DeKalb, DuPage, Kane, Lake, McHenry | 8 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Jo Daviess County5
- Stephenson County5
- DeKalb County4
- Lake County4
- McHenry County4
- Kendall County3
- LaSalle County3
- Boone County3
- Kane County3
- Lee County3
- Ogle County3
- Winnebago County3
- Carroll County3
- Whiteside County3
- Grundy County2
- DuPage County2
- Bureau County2
- Hancock County2
- Henderson County2
- Henry County2
- McDonough County2
- Mercer County2
- Putnam County2
- Rock Island County2
- Warren County2
- Kankakee County1
- Clay County1
- Crawford County1
- Effingham County1
- Jasper County1
- Lawrence County1
- Richland County1
- Bond County1
- Clinton County1
- Fayette County1
- Madison County1
- Marion County1
- Monroe County1
- Randolph County1
- Saint Clair County1
23 more counties
- Washington County1
- Alexander County1
- Edwards County1
- Franklin County1
- Gallatin County1
- Hamilton County1
- Hardin County1
- Jackson County1
- Jefferson County1
- Johnson County1
- Massac County1
- Perry County1
- Pope County1
- Pulaski County1
- Saline County1
- Union County1
- Wabash County1
- Wayne County1
- White County1
- Williamson County1
- Adams County1
- Knox County1
- Stark County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.