Alert archive / Illinois / Tornado Watches / 2011
Tornado Watches in Illinois, April 2011
15 tornado watches in April 2011. 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 April 2011. Tap one for its archive.
- Tornado Watches
- 15
- Busiest day
- April 26, 20113 tornado 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 |
|---|---|---|---|---|
| Apr 3, 5:57 PM CDT | Tornado Watch | SPC | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 10 more | 6 hr |
| Apr 4, 7:22 AM CDT | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 7 hr |
| Apr 10, 6:05 PM CDT | Tornado Watch | SPC | Adams, Boone, Brown, Bureau, Calhoun, Carroll and 48 more | 7 hr |
| Apr 15, 12:47 PM CDT | Tornado Watch | SPC | Adams, Alexander, Bond, Brown, Calhoun, Cass and 57 more | 9 hr |
| Apr 19, 1:00 PM CDT | Tornado Watch | SPC | Bond, Calhoun, Cass, Champaign, Christian, Clark and 36 more | 10 hr |
| Apr 19, 6:46 PM CDT | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 9 hr |
| Apr 22, 3:34 PM CDT | Tornado Watch | SPC | Calhoun, Greene, Jersey, Macoupin, Madison, Monroe and 2 more | 6 hr |
| Apr 22, 5:49 PM CDT | Tornado Watch | SPC | Alexander, Bond, Clay, Clinton, Crawford, Edwards and 26 more | 7 hr |
| Apr 23, 1:04 AM CDT | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more | 4 hr |
| Apr 23, 2:30 PM CDT | Tornado Watch | SPC | Hardin, Massac, Pope | 5 hr |
| Apr 25, 4:50 PM CDT | Tornado Watch | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more | 7 hr |
| Apr 26, 2:02 PM CDT | Tornado Watch | SPC | Champaign, Clark, Coles, Cumberland, Douglas, Edgar and 2 more | 7 hr |
| Apr 26, 3:02 PM CDT | Tornado Watch | SPC | Hardin, Massac, Pope | 7 hr |
| Apr 26, 4:50 PM CDT | Tornado Watch | SPC | Gallatin, Saline, Wabash, White | 5 hr |
| Apr 27, 3:29 PM CDT | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Hardin County9
- Massac County9
- Pope County9
- Gallatin County8
- Saline County8
- White County8
- Alexander County7
- Franklin County7
- Hamilton County7
- Jackson County7
- Johnson County7
- Perry County7
- Pulaski County7
- Union County7
- Wabash County7
- Williamson County7
- Edwards County6
- Jefferson County6
- Wayne County6
- Randolph County5
- Calhoun County4
- Greene County4
- Jersey County4
- Macoupin County4
- Madison County4
- Monroe County4
- Montgomery County4
- Pike County4
- Saint Clair County4
- Cass County3
- Christian County3
- DeWitt County3
- Logan County3
- Macon County3
- Menard County3
- Morgan County3
- Sangamon County3
- Scott County3
- Bond County3
- Champaign County3
56 more counties
- Clark County3
- Clay County3
- Clinton County3
- Coles County3
- Crawford County3
- Cumberland County3
- Douglas County3
- Edgar County3
- Effingham County3
- Fayette County3
- Jasper County3
- Lawrence County3
- Marion County3
- Richland County3
- Vermilion County3
- Washington County3
- Bureau County2
- Carroll County2
- Hancock County2
- Henderson County2
- Henry County2
- Jo Daviess County2
- Lee County2
- McDonough County2
- Mercer County2
- Ogle County2
- Putnam County2
- Rock Island County2
- Stephenson County2
- Warren County2
- Whiteside County2
- Winnebago County2
- Adams County2
- Brown County2
- McLean County2
- Mason County2
- Schuyler County2
- Tazewell County2
- Moultrie County2
- Piatt County2
- Shelby County2
- Boone County1
- DeKalb County1
- Fulton County1
- Grundy County1
- Kane County1
- Kendall County1
- Knox County1
- LaSalle County1
- Livingston County1
- McHenry County1
- Marshall County1
- Peoria County1
- Stark County1
- Woodford County1
- Iroquois County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.