Alert archive / Illinois / Tornado Watches
Tornado Watches in Illinois, 2020
14 tornado 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 tornado watches reaches back to 1997.
Tornado Watches by county
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Tornado Watches
- 14
- Busiest month
- March8 tornado watches
- Busiest day
- July 15, 20203 tornado 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 |
|---|---|---|---|---|
| Mar 2, 5:21 PM CST | Tornado Watch | SPC | Alexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more | 8 hr |
| Mar 12, 11:44 AM CDT | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 6 hr |
| Mar 12, 3:44 PM CDT | Tornado Watch | SPC | Alexander, Jackson, Johnson, Massac, Pulaski, Union | 7 hr |
| Mar 19, 4:06 PM CDT | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 11 more | 7 hr |
| Mar 19, 9:50 PM CDT | Tornado Watch | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Johnson and 7 more | 6 hr |
| Mar 28, 2:45 PM CDT | Tornado Watch | SPC | Adams, Brown, Bureau, Calhoun, Cass, Champaign and 44 more | 6 hr |
| Mar 28, 3:53 PM CDT | Tornado Watch | SPC | Alexander, Bond, Clark, Clay, Clinton, Crawford and 30 more | 5 hr |
| Mar 28, 8:41 PM CDT | Tornado Watch | SPC | Bureau, Cass, Champaign, Christian, DeKalb, DeWitt and 27 more | 3 hr |
| Apr 8, 4:24 PM CDT | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more | 7 hr |
| May 23, 12:33 PM CDT | Tornado Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DeWitt and 35 more | 8 hr |
| Jul 15, 2:10 PM CDT | Tornado Watch | SPC | Bond, Brown, Calhoun, Cass, Christian, Clinton and 30 more | 7 hr |
| Jul 15, 3:14 PM CDT | Tornado Watch | SPC | Ford, Grundy, Iroquois, Kankakee, Livingston | 6 hr |
| Jul 15, 6:12 PM CDT | Tornado Watch | SPC | Champaign, Clark, Clay, Coles, Crawford, Cumberland and 20 more | 5 hr |
| Nov 10, 2:05 PM CST | Tornado Watch | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 25 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Johnson County8
- Union County8
- Alexander County7
- Gallatin County7
- Massac County7
- Pulaski County7
- Saline County7
- Williamson County7
- Hardin County6
- Pope County6
- Franklin County6
- Hamilton County6
- White County6
- Edwards County5
- Jackson County5
- Jefferson County5
- Wabash County5
- Wayne County5
- Ford County5
- Iroquois County5
- Livingston County5
- Peoria County5
- Perry County4
- Bureau County4
- DeWitt County4
- Fulton County4
- LaSalle County4
- Lee County4
- Logan County4
- McLean County4
- Marshall County4
- Mason County4
- Putnam County4
- Stark County4
- Tazewell County4
- Woodford County4
- Grundy County4
- Kankakee County4
- Cass County3
- Champaign County3
62 more counties
- Christian County3
- Henry County3
- Knox County3
- Macon County3
- Menard County3
- Morgan County3
- Piatt County3
- Rock Island County3
- Sangamon County3
- Vermilion County3
- Whiteside County3
- Randolph County3
- DeKalb County3
- Kane County3
- Kendall County3
- Ogle County3
- Will County3
- Winnebago County3
- Brown County2
- Calhoun County2
- Coles County2
- Douglas County2
- Edgar County2
- Greene County2
- Henderson County2
- Jersey County2
- McDonough County2
- Macoupin County2
- Mercer County2
- Montgomery County2
- Moultrie County2
- Pike County2
- Schuyler County2
- Scott County2
- Shelby County2
- Warren County2
- Bond County2
- Clark County2
- Clay County2
- Clinton County2
- Crawford County2
- Cumberland County2
- Effingham County2
- Fayette County2
- Jasper County2
- Lawrence County2
- Madison County2
- Marion County2
- Monroe County2
- Richland County2
- Saint Clair County2
- Washington County2
- Boone County2
- Carroll County2
- Cook County2
- DuPage County2
- Jo Daviess County2
- Lake County2
- McHenry County2
- Stephenson County2
- Adams County1
- Hancock 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. Rebuilt daily.