Blizzard Watches in Illinois
9 blizzard watches 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 blizzard watches reaches back to 2005.
Blizzard Watches by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Blizzard Watches
- 9
- Busiest year
- 20094 blizzard watches
- Average year
- 2over 5 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.
- Carroll County4
- Jo Daviess County4
- Stephenson County4
- Grundy County4
- Boone County3
- DeKalb County3
- DuPage County3
- Ford County3
- Iroquois County3
- Kane County3
- Kankakee County3
- Kendall County3
- Lake County3
- LaSalle County3
- Lee County3
- Livingston County3
- McHenry County3
- Ogle County3
- Rock Island County3
- Winnebago County3
- Bureau County2
- Henry County2
- Mercer County2
- Putnam County2
- Whiteside County2
- Hancock County1
- Henderson County1
- McDonough County1
- Warren County1
- Alexander County1
- Edwards County1
- Franklin County1
- Gallatin County1
- Hamilton County1
- Hardin County1
- Jackson County1
- Jefferson County1
- Johnson County1
- Massac County1
- Perry 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.