Alert archive / Illinois / Tornado Watches
Tornado Watches in Illinois, 2017
15 tornado watches in 2017. 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 2017. Tap one for its archive.
- Tornado Watches
- 15
- Busiest month
- March5 tornado watches
- Busiest day
- March 1, 20174 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 |
|---|---|---|---|---|
| Feb 28, 2:19 PM CST | Tornado Watch | SPC | Alexander, Bond, Calhoun, Clinton, Edwards, Fayette and 27 more | 7 hr |
| Feb 28, 2:57 PM CST | Tornado Watch | SPC | Adams, Boone, Brown, Bureau, Carroll, Cass and 63 more | 7 hr |
| Feb 28, 8:29 PM CST | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 12 hr |
| Feb 28, 9:04 PM CST | Tornado Watch | SPC | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 7 hr |
| Feb 28, 9:51 PM CST | Tornado Watch | SPC | Cass, Champaign, Christian, Clark, Clay, Coles and 37 more | 6 hr |
| Mar 1, 3:03 AM CST | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 5 hr |
| Mar 6, 8:52 PM CST | Tornado Watch | SPC | Adams, Bond, Brown, Bureau, Calhoun, Carroll and 38 more | 6 hr |
| May 17, 3:44 PM CDT | Tornado Watch | SPC | Boone, Bureau, Carroll, DeKalb, Henderson, Henry and 18 more | 9 hr |
| May 19, 3:06 PM CDT | Tornado Watch | SPC | Calhoun | 7 hr |
| May 26, 2:45 PM CDT | Tornado Watch | SPC | Champaign, DeWitt, Ford, Fulton, Iroquois, Kankakee and 10 more | 5 hr |
| Jun 28, 2:53 PM CDT | Tornado Watch | SPC | Carroll, Jo Daviess, Rock Island, Stephenson | 9 hr |
| Jun 28, 7:06 PM CDT | Tornado Watch | SPC | Boone, Cook, DeKalb, DuPage, Kane, Lake and 3 more | 4 hr |
| Oct 14, 5:09 PM CDT | Tornado Watch | SPC | Adams, Brown, Bureau, Ford, Fulton, Grundy and 24 more | 8 hr |
| Nov 5, 12:35 PM CST | Tornado Watch | SPC | Bond, Champaign, Christian, Clark, Clay, Clinton and 24 more | 6 hr |
| Nov 5, 3:50 PM CST | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Marshall County6
- Fulton County5
- Mason County5
- Peoria County5
- Rock Island County5
- Stark County5
- Tazewell County5
- Woodford County5
- Alexander County4
- Bond County4
- Calhoun County4
- Clinton County4
- Edwards County4
- Fayette County4
- Franklin County4
- Gallatin County4
- Hamilton County4
- Hardin County4
- Jackson County4
- Jefferson County4
- Jersey County4
- Johnson County4
- Macoupin County4
- Madison County4
- Marion County4
- Massac County4
- Monroe County4
- Montgomery County4
- Perry County4
- Pope County4
- Pulaski County4
- Randolph County4
- Saint Clair County4
- Saline County4
- Union County4
- Wabash County4
- Washington County4
- Wayne County4
- White County4
- Williamson County4
62 more counties
- Adams County4
- Brown County4
- Bureau County4
- Carroll County4
- Champaign County4
- Ford County4
- Henderson County4
- Henry County4
- Iroquois County4
- Jo Daviess County4
- Kankakee County4
- Kendall County4
- Knox County4
- LaSalle County4
- Livingston County4
- McLean County4
- Mercer County4
- Piatt County4
- Putnam County4
- Schuyler County4
- Stephenson County4
- Vermilion County4
- Warren County4
- Whiteside County4
- Greene County3
- Boone County3
- Cass County3
- Christian County3
- Clark County3
- Clay County3
- Coles County3
- Cook County3
- Crawford County3
- Cumberland County3
- DeKalb County3
- DeWitt County3
- Douglas County3
- Edgar County3
- Effingham County3
- Grundy County3
- Hancock County3
- Jasper County3
- Kane County3
- Lake County3
- Lawrence County3
- Lee County3
- Logan County3
- McDonough County3
- McHenry County3
- Macon County3
- Menard County3
- Morgan County3
- Moultrie County3
- Ogle County3
- Pike County3
- Richland County3
- Sangamon County3
- Scott County3
- Shelby County3
- Winnebago County3
- DuPage County2
- Will County2
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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.