Alert archive / Illinois / Tornado Warnings / 2011

Tornado Warnings in Illinois, May 2011

78 tornado warnings in May 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 warnings reaches back to 1986.

Tornado Warnings by county

Each county as a circle sized by its count in May 2011. Tap one for its archive.

Tornado Warnings
78
Busiest day
May 25, 201147 tornado warnings

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.

IssuedProductOfficeCountiesLasted
May 7, 4:06 PM CDTTornado WarningILXChampaign, Vermilion39 min
May 7, 4:06 PM CDTTornado WarningLOTFord, Iroquois39 min
May 7, 4:44 PM CDTTornado WarningILXVermilion46 min
May 7, 5:12 PM CDTTornado WarningILXChampaign31 min
May 7, 6:03 PM CDTTornado WarningILXEdgar, Vermilion42 min
May 7, 6:24 PM CDTTornado WarningILXEdgar51 min
May 7, 6:57 PM CDTTornado WarningILXEdgar25 min
May 12, 4:58 PM CDTTornado WarningLOTMcHenry32 min
May 12, 5:25 PM CDTTornado WarningLOTMcHenry20 min
May 13, 12:35 PM CDTTornado WarningLOTGrundy, Kankakee, Will40 min
May 13, 1:30 PM CDTTornado WarningLOTDeKalb45 min
May 13, 5:35 PM CDTTornado WarningLSXRandolph25 min
May 22, 6:37 PM CDTTornado WarningLOTBoone, DeKalb, Ogle, Winnebago38 min
May 22, 6:54 PM CDTTornado WarningLOTBoone, DeKalb, McHenry51 min
May 22, 7:28 PM CDTTornado WarningILXKnox, Peoria, Stark21 min
May 22, 7:51 PM CDTTornado WarningLSXCalhoun, Jersey39 min
May 22, 8:24 PM CDTTornado WarningDVNHenry, Rock Island51 min
May 23, 3:57 PM CDTTornado WarningPAHJackson, Union33 min
May 23, 4:12 PM CDTTornado WarningPAHJackson33 min
May 25, 4:39 AM CDTTornado WarningLSXCalhoun, Greene, Jersey22 min
May 25, 7:57 AM CDTTornado WarningILXPiatt13 min
May 25, 8:59 AM CDTTornado WarningLOTIroquois21 min
May 25, 1:05 PM CDTTornado WarningLSXFayette16 min
May 25, 1:10 PM CDTTornado WarningILXEffingham, Shelby31 min
May 25, 2:49 PM CDTTornado WarningLSXMonroe32 min
May 25, 2:54 PM CDTTornado WarningLSXAdams, Pike51 min
May 25, 2:55 PM CDTTornado WarningLSXCalhoun, Pike50 min
May 25, 3:29 PM CDTTornado WarningLSXCalhoun, Greene, Jersey46 min
May 25, 3:30 PM CDTTornado WarningLSXMonroe33 min
May 25, 3:34 PM CDTTornado WarningLSXAdams, Pike41 min
May 25, 3:36 PM CDTTornado WarningLSXJersey, Macoupin, Madison29 min
May 25, 3:37 PM CDTTornado WarningLSXAdams, Pike25 min
May 25, 3:43 PM CDTTornado WarningLSXCalhoun, Greene, Pike47 min
May 25, 3:47 PM CDTTornado WarningILXCass, Morgan, Scott43 min
May 25, 4:11 PM CDTTornado WarningLSXMadison, Monroe, Saint Clair49 min
May 25, 4:17 PM CDTTornado WarningILXChristian, Sangamon25 min
May 25, 4:23 PM CDTTornado WarningLSXMonroe, Randolph, Saint Clair52 min
May 25, 4:35 PM CDTTornado WarningDVNHancock40 min
May 25, 4:51 PM CDTTornado WarningLSXMonroe39 min
May 25, 4:56 PM CDTTornado WarningLSXMacoupin, Madison49 min
May 25, 5:05 PM CDTTornado WarningPAHPerry25 min
May 25, 5:08 PM CDTTornado WarningLSXClinton, Madison, Saint Clair, Washington52 min
May 25, 5:11 PM CDTTornado WarningDVNMercer23 min
May 25, 5:12 PM CDTTornado WarningLSXRandolph, Saint Clair48 min
May 25, 5:13 PM CDTTornado WarningILXChristian, Shelby32 min
May 25, 5:27 PM CDTTornado WarningPAHJefferson48 min
May 25, 5:34 PM CDTTornado WarningLSXBond, Clinton, Fayette, Madison, Marion, Montgomery41 min
May 25, 5:46 PM CDTTornado WarningLSXClinton, Randolph, Saint Clair, Washington44 min
May 25, 5:51 PM CDTTornado WarningILXDeWitt, McLean24 min
May 25, 5:51 PM CDTTornado WarningLSXRandolph29 min
May 25, 5:54 PM CDTTornado WarningPAHJohnson, Pope36 min
May 25, 6:04 PM CDTTornado WarningPAHJackson, Perry41 min
May 25, 6:05 PM CDTTornado WarningPAHGallatin, Pope, Saline, Williamson25 min
May 25, 6:08 PM CDTTornado WarningPAHAlexander37 min
May 25, 6:12 PM CDTTornado WarningILXMcLean40 min
May 25, 6:18 PM CDTTornado WarningPAHUnion27 min
May 25, 6:23 PM CDTTornado WarningLSXClinton, Marion, Washington34 min
May 25, 6:25 PM CDTTornado WarningPAHGallatin, Hamilton, Saline, White50 min
May 25, 6:27 PM CDTTornado WarningLOTLaSalle, Livingston24 min
May 25, 6:35 PM CDTTornado WarningPAHFranklin, Jefferson, Williamson40 min
May 25, 6:41 PM CDTTornado WarningPAHJackson, Perry22 min
May 25, 6:43 PM CDTTornado WarningPAHAlexander, Johnson, Massac, Pulaski, Union32 min
May 25, 6:48 PM CDTTornado WarningLSXFayette, Marion26 min
May 25, 6:53 PM CDTTornado WarningILXChampaign, Piatt37 min
May 25, 6:57 PM CDTTornado WarningPAHWhite33 min
May 25, 6:59 PM CDTTornado WarningPAHHamilton, Saline, Wayne46 min
May 25, 7:01 PM CDTTornado WarningILXClay, Effingham, Jasper, Richland29 min
May 25, 7:02 PM CDTTornado WarningPAHJohnson, Massac, Pope28 min
May 25, 7:08 PM CDTTornado WarningILXChampaign, Vermilion52 min
May 25, 7:08 PM CDTTornado WarningPAHEdwards, Wabash, Wayne, White37 min
May 25, 7:11 PM CDTTornado WarningILXChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 3 more49 min
May 25, 7:24 PM CDTTornado WarningILXClay, Crawford, Jasper, Lawrence, Richland51 min
May 25, 7:27 PM CDTTornado WarningPAHGallatin, White33 min
May 25, 7:41 PM CDTTornado WarningPAHWabash34 min
May 25, 7:53 PM CDTTornado WarningILXVermilion37 min
May 25, 7:56 PM CDTTornado WarningILXClark, Edgar, Vermilion34 min
May 29, 12:32 PM CDTTornado WarningLOTGrundy, Kankakee, Livingston, Will43 min
May 29, 1:16 PM CDTTornado WarningLOTKankakee44 min

By county

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

35 more counties

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.