Alert archive / Illinois / Tornado Watches

Tornado Watches in Illinois, 2009

23 tornado watches in 2009. 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 2009. Tap one for its archive.

Tornado Watches
23
Busiest month
May6 tornado watches
Busiest day
August 19, 20094 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
Mar 8, 6:32 AM CDTTornado WatchSPCAdams, Bond, Brown, Calhoun, Cass, Clinton and 15 more7 hr
Mar 8, 10:39 AM CDTTornado WatchSPCAlexander, Champaign, Christian, Clark, Clay, Coles and 45 more7 hr
Mar 28, 2:23 PM CDTTornado WatchSPCGallatin, Hardin, Pope, Saline7 hr
Apr 2, 2:40 PM CDTTornado WatchSPCGallatin, Hardin, Massac, Pope, Saline, White4 hr
Apr 5, 11:44 AM CDTTornado WatchSPCAlexander, Edwards, Gallatin, Hamilton, Hardin, Johnson and 9 more6 hr
Apr 10, 8:53 AM CDTTornado WatchSPCFranklin, Gallatin, Hamilton, Hardin, Johnson, Massac and 4 more7 hr
Apr 26, 5:02 PM CDTTornado WatchSPCJo Daviess, Stephenson6 hr
May 8, 9:21 AM CDTTornado WatchSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more7 hr
May 13, 2:39 PM CDTTornado WatchSPCAdams, Brown, Bureau, Calhoun, Cass, Fulton and 16 more7 hr
May 13, 3:00 PM CDTTornado WatchSPCBond, Clark, Clay, Clinton, Crawford, Cumberland and 24 more5 hr
May 13, 6:02 PM CDTTornado WatchSPCBoone, Champaign, Cook, DeKalb, DeWitt, DuPage and 26 more5 hr
May 15, 12:50 PM CDTTornado WatchSPCAdams, Brown, Calhoun, Pike7 hr
May 15, 2:39 PM CDTTornado WatchSPCBond, Cass, Champaign, Christian, Clinton, Coles and 33 more7 hr
Jun 10, 7:46 PM CDTTornado WatchSPCAlexander, Bond, Calhoun, Champaign, Christian, Clark and 51 more6 hr
Jun 11, 4:47 PM CDTTornado WatchSPCEdwards, Gallatin, Hamilton, Hardin, Saline, Wabash and 2 more6 hr
Jul 24, 1:12 PM CDTTornado WatchSPCRock Island4 hr
Jul 24, 5:02 PM CDTTornado WatchSPCBureau, Carroll, Ford, Henry, Jo Daviess, LaSalle and 9 more6 hr
Aug 19, 12:49 PM CDTTornado WatchSPCAdams, Brown, Bureau, Cass, Champaign, Christian and 52 more6 hr
Aug 19, 3:05 PM CDTTornado WatchSPCChampaign, Christian, Coles, Douglas, Edgar, Moultrie and 2 more2 hr
Aug 19, 4:49 PM CDTTornado WatchSPCBureau, Carroll, Henry, Jo Daviess, Mercer, Putnam and 3 more5 hr
Aug 19, 5:11 PM CDTTornado WatchSPCClark, Clay, Crawford, Cumberland, Effingham, Jasper and 2 more5 hr
Sep 27, 8:22 PM CDTTornado WatchSPCBoone, Bureau, Cass, Champaign, Christian, Clark and 39 more3 hr
Oct 8, 8:00 PM CDTTornado WatchSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski7 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. August 19, 20094tornado watches
  2. May 13, 20093tornado watches
  3. March 8, 20092tornado watches
  4. May 15, 20092tornado watches
  5. June 11, 20092tornado watches
  6. July 24, 20092tornado watches
  7. March 28, 20091tornado watches
  8. April 2, 20091tornado watches
  9. April 5, 20091tornado watches
  10. April 10, 20091tornado watches
  11. April 26, 20091tornado watches
  12. May 8, 20091tornado watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20082010

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.