Alert archive / Illinois / Tornado Watches

Tornado Watches in Illinois, 2011

33 tornado watches in 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 2011. Tap one for its archive.

Tornado Watches
33
Busiest month
April15 tornado watches
Busiest day
May 25, 20115 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.

IssuedProductOfficeCountiesLasted
Feb 27, 9:40 PM CSTTornado WatchSPCAlexander, Bond, Calhoun, Clinton, Edwards, Fayette and 27 more6 hr
Feb 27, 11:46 PM CSTTornado WatchSPCClark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more5 hr
Mar 4, 4:54 PM CSTTornado WatchSPCBond, Calhoun, Christian, Clay, Clinton, Effingham and 16 more118 min
Apr 3, 5:57 PM CDTTornado WatchSPCBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 10 more6 hr
Apr 4, 7:22 AM CDTTornado WatchSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more7 hr
Apr 10, 6:05 PM CDTTornado WatchSPCAdams, Boone, Brown, Bureau, Calhoun, Carroll and 48 more7 hr
Apr 15, 12:47 PM CDTTornado WatchSPCAdams, Alexander, Bond, Brown, Calhoun, Cass and 57 more9 hr
Apr 19, 1:00 PM CDTTornado WatchSPCBond, Calhoun, Cass, Champaign, Christian, Clark and 36 more10 hr
Apr 19, 6:46 PM CDTTornado WatchSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more9 hr
Apr 22, 3:34 PM CDTTornado WatchSPCCalhoun, Greene, Jersey, Macoupin, Madison, Monroe and 2 more6 hr
Apr 22, 5:49 PM CDTTornado WatchSPCAlexander, Bond, Clay, Clinton, Crawford, Edwards and 26 more7 hr
Apr 23, 1:04 AM CDTTornado WatchSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more4 hr
Apr 23, 2:30 PM CDTTornado WatchSPCHardin, Massac, Pope5 hr
Apr 25, 4:50 PM CDTTornado Watch PDSSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more7 hr
Apr 26, 2:02 PM CDTTornado WatchSPCChampaign, Clark, Coles, Cumberland, Douglas, Edgar and 2 more7 hr
Apr 26, 3:02 PM CDTTornado Watch PDSSPCHardin, Massac, Pope7 hr
Apr 26, 4:50 PM CDTTornado WatchSPCGallatin, Saline, Wabash, White5 hr
Apr 27, 3:29 PM CDTTornado WatchSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more5 hr
May 22, 12:51 PM CDTTornado WatchSPCAdams, Bond, Brown, Bureau, Calhoun, Carroll and 42 more10 hr
May 22, 2:04 PM CDTTornado WatchSPCBoone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more9 hr
May 22, 8:26 PM CDTTornado WatchSPCBond, Calhoun, Cass, Champaign, Christian, Clay and 35 more8 hr
May 25, 1:22 AM CDTTornado WatchSPCAdams, Brown, Calhoun, Cass, Fulton, Greene and 16 more7 hr
May 25, 5:46 AM CDTTornado WatchSPCBond, Champaign, Christian, Clark, Clay, Clinton and 35 more7 hr
May 25, 10:37 AM CDTTornado WatchSPCAdams, Brown, Pike7 hr
May 25, 11:09 AM CDTTornado Watch PDSSPCAlexander, Bond, Calhoun, Christian, Clark, Clay and 41 more10 hr
May 25, 2:31 PM CDTTornado WatchSPCBureau, Cass, Champaign, DeKalb, DeWitt, Ford and 33 more7 hr
Jun 2, 3:46 PM CDTTornado WatchSPCCalhoun, Greene, Jersey4 hr
Jun 19, 2:55 AM CDTTornado WatchSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more6 hr
Jun 19, 5:01 PM CDTTornado WatchSPCMassac5 hr
Jun 21, 1:22 PM CDTTornado WatchSPCAlexander, Bond, Calhoun, Cass, Champaign, Christian and 49 more9 hr
Jul 27, 7:43 PM CDTTornado WatchSPCBoone, Carroll, Cook, DeKalb, DuPage, Jo Daviess and 10 more5 hr
Nov 14, 11:41 AM CSTTornado WatchSPCChampaign, Christian, Clark, Clay, Coles, Crawford and 18 more7 hr
Nov 14, 3:04 PM CSTTornado WatchSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 15 more5 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

62 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. May 25, 20115tornado watches
  2. April 26, 20113tornado watches
  3. February 28, 20112tornado watches
  4. April 19, 20112tornado watches
  5. April 22, 20112tornado watches
  6. April 23, 20112tornado watches
  7. May 22, 20112tornado watches
  8. June 19, 20112tornado watches
  9. November 14, 20112tornado watches
  10. March 4, 20111tornado watches
  11. April 3, 20111tornado watches
  12. April 4, 20111tornado watches

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.