Alert archive / Illinois / Severe Thunderstorm Watches / 2020
Severe Thunderstorm Watches in Illinois, June 2020
3 severe thunderstorm watches in June 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 severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in June 2020. Tap one for its archive.
- Severe Thunderstorm Watches
- 3
- Busiest day
- June 3, 20201 severe thunderstorm watches
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Jun 3, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 12 more | 6 hr |
| Jun 22, 1:36 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Cass, Champaign, Christian, Coles and 37 more | 7 hr |
| Jun 26, 1:38 PM CDT | Severe Thunderstorm Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 20 more | 8 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bond County2
- Calhoun County2
- Fayette County2
- Greene County2
- Jersey County2
- Macoupin County2
- Madison County2
- Montgomery County2
- Morgan County2
- Pike County2
- Scott County2
- Cook County2
- Grundy County2
- Kankakee County2
- Kendall County2
- LaSalle County2
- Putnam County2
- Will County2
- Adams County1
- Brown County1
- Clinton County1
- Marion County1
- Monroe County1
- Saint Clair County1
- Washington County1
- Cass County1
- Champaign County1
- Christian County1
- Coles County1
- DeWitt County1
- Douglas County1
- Edgar County1
- Ford County1
- Fulton County1
- Iroquois County1
- Livingston County1
- Logan County1
- McLean County1
- Macon County1
- Marshall County1
29 more counties
- Mason County1
- Menard County1
- Moultrie County1
- Peoria County1
- Piatt County1
- Sangamon County1
- Shelby County1
- Tazewell County1
- Vermilion County1
- Woodford County1
- Boone County1
- Bureau County1
- Carroll County1
- DeKalb County1
- DuPage County1
- Henderson County1
- Henry County1
- Jo Daviess County1
- Kane County1
- Lake County1
- Lee County1
- McHenry County1
- Mercer County1
- Ogle County1
- Rock Island County1
- Stephenson County1
- Warren County1
- Whiteside County1
- Winnebago County1
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.