Alert archive / Illinois / Winter Storm Watches
Winter Storm Watches in Illinois, 2020
14 winter storm watches in 2020. 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 watches reaches back to 2005.
Winter Storm Watches by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Winter Storm Watches
- 14
- Busiest month
- January6 winter storm watches
- Busiest day
- January 9, 20204 winter storm watches
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 9, 11:21 AM CST | Winter Storm Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 16 hr |
| Jan 9, 1:36 PM CST | Winter Storm Watch | LOT | Boone, DeKalb, DuPage, Kane, Kendall, Lake and 5 more | 22 hr |
| Jan 9, 2:17 PM CST | Winter Storm Watch | ILX | Fulton, Knox, Marshall, Peoria, Schuyler, Stark | 13 hr |
| Jan 9, 3:56 PM CST | Winter Storm Watch | LSX | Adams | 12 hr |
| Jan 15, 2:54 PM CST | Winter Storm Watch | LSX | Adams, Brown, Pike | 24 hr |
| Jan 15, 3:43 PM CST | Winter Storm Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 23 hr |
| Feb 4, 3:33 AM CST | Winter Storm Watch | LSX | Calhoun, Greene, Jersey, Macoupin, Madison, Monroe and 3 more | 11 hr |
| Feb 23, 10:35 AM CST | Winter Storm Watch | DVN | Bureau, Carroll, Henderson, Henry, Jo Daviess, Mercer and 5 more | 28 hr |
| Feb 23, 2:11 PM CST | Winter Storm Watch | LOT | Boone, DeKalb, DuPage, Grundy, Kane, Kankakee and 8 more | 48 hr |
| Feb 24, 3:17 AM CST | Winter Storm Watch | ILX | Fulton, Knox, McLean, Marshall, Peoria, Schuyler and 3 more | 24 hr |
| Apr 15, 3:13 PM CDT | Winter Storm Watch | DVN | Bureau, Henderson, Henry, Mercer, Putnam, Warren | 11 hr |
| Apr 15, 3:18 PM CDT | Winter Storm Watch | ILX | Knox, Marshall, Stark | 12 hr |
| Dec 28, 3:19 AM CST | Winter Storm Watch | DVN | Carroll, Henry, Jo Daviess, Mercer, Rock Island, Stephenson and 1 more | 17 hr |
| Dec 28, 3:31 AM CST | Winter Storm Watch | LOT | Boone, Ogle, Winnebago | 12 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Henry County5
- Mercer County5
- Bureau County4
- Carroll County4
- Henderson County4
- Jo Daviess County4
- Putnam County4
- Rock Island County4
- Stephenson County4
- Warren County4
- Whiteside County4
- Boone County3
- Ogle County3
- Winnebago County3
- Knox County3
- Marshall County3
- Stark County3
- Hancock County2
- McDonough County2
- DeKalb County2
- DuPage County2
- Kane County2
- Kendall County2
- Lake County2
- LaSalle County2
- Lee County2
- McHenry County2
- Fulton County2
- Peoria County2
- Schuyler County2
- Adams County2
- Pike County2
- Brown County1
- Calhoun County1
- Greene County1
- Jersey County1
- Macoupin County1
- Madison County1
- Monroe County1
- Montgomery County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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. Warning verification from the Mesonet's Cow. Rebuilt daily.