Heavy Snow Warnings in Illinois
8 heavy snow 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 heavy snow warnings reaches back to 2005.
Heavy Snow Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Heavy Snow Warnings
- 8
- Busiest year
- 20065 heavy snow warnings
- Average year
- 2over 4 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.
- DuPage County3
- Kane County3
- Lake County3
- McHenry County3
- Union County3
- Alexander County2
- DeKalb County2
- Grundy County2
- Hardin County2
- Johnson County2
- Kendall County2
- LaSalle County2
- Livingston County2
- Massac County2
- Pope County2
- Pulaski County2
- Adams County1
- Brown County1
- Ford County1
- Iroquois County1
- Kankakee County1
- Edwards County1
- Franklin County1
- Hamilton County1
- Jackson County1
- Jefferson County1
- Perry County1
- Wabash County1
- Wayne County1
- White County1
- Williamson County1
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.