Alert archive / Illinois / Severe Thunderstorm Watches / 2021
Severe Thunderstorm Watches in Illinois, June 2021
9 severe thunderstorm watches in June 2021. 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 2021. Tap one for its archive.
- Severe Thunderstorm Watches
- 9
- Busiest day
- June 19, 20213 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 18, 9:20 PM CDT | Severe Thunderstorm Watch | SPC | Cass, Champaign, Christian, Clark, Clay, Coles and 33 more | 7 hr |
| Jun 18, 10:08 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Bureau, Hancock, Henderson, Henry and 6 more | 8 hr |
| Jun 19, 2:43 PM CDT | Severe Thunderstorm Watch | SPC | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 9 more | 7 hr |
| Jun 20, 4:01 PM CDT | Severe Thunderstorm Watch | SPC | Hancock, Henderson, Mercer, Rock Island | 7 hr |
| Jun 20, 8:10 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Boone, Brown, Bureau, Calhoun, Carroll and 31 more | 5 hr |
| Jun 20, 9:40 PM CDT | Severe Thunderstorm Watch | SPC | Cook, DuPage, Ford, Grundy, Iroquois, Kane and 6 more | 4 hr |
| Jun 24, 8:57 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Hancock, Pike | 6 hr |
| Jun 25, 5:06 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Calhoun, Cass, Champaign, Christian and 30 more | 6 hr |
| Jun 25, 6:47 PM CDT | Severe Thunderstorm Watch | SPC | Kankakee | 4 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pike County5
- Greene County4
- Macoupin County4
- Adams County4
- Brown County4
- Cass County3
- Fulton County3
- Logan County3
- Mason County3
- Menard County3
- Montgomery County3
- Morgan County3
- Peoria County3
- Sangamon County3
- Schuyler County3
- Scott County3
- Tazewell County3
- Woodford County3
- Hancock County3
- Calhoun County3
- Jersey County3
- Champaign County2
- Christian County2
- Coles County2
- DeWitt County2
- Douglas County2
- Edgar County2
- Fayette County2
- Knox County2
- McLean County2
- Macon County2
- Marshall County2
- Moultrie County2
- Piatt County2
- Shelby County2
- Stark County2
- Vermilion County2
- Bureau County2
- Henderson County2
- Henry County2
43 more counties
- McDonough County2
- Mercer County2
- Putnam County2
- Rock Island County2
- Warren County2
- Madison County2
- Ford County2
- Iroquois County2
- Kankakee County2
- Livingston County2
- Clark County1
- Clay County1
- Crawford County1
- Cumberland County1
- Effingham County1
- Jasper County1
- Lawrence County1
- Richland County1
- Bond County1
- Clinton County1
- Marion County1
- Monroe County1
- Randolph County1
- Saint Clair County1
- Washington County1
- Boone County1
- Carroll County1
- DeKalb County1
- Jo Daviess County1
- LaSalle County1
- Lee County1
- Ogle County1
- Stephenson County1
- Whiteside County1
- Winnebago County1
- Cook County1
- DuPage County1
- Grundy County1
- Kane County1
- Kendall County1
- Lake County1
- McHenry County1
- Will County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.