Alert archive / Illinois / 2023

Weather alerts in Illinois, September 2023

132 weather alerts in September 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in September 2023. Tap one for its archive.

Alerts
132
Warnings
38
Watches
0
Advisories
30
Busiest day
September 27, 202326 alerts

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
Sep 4, 6:53 PM CDTSpecial Weather StatementPAHAlexander, Jackson52 min
Sep 4, 7:34 PM CDTSpecial Weather StatementILXMorgan, Scott56 min
Sep 5, 3:59 PM CDTSpecial Weather StatementPAHMassac46 min
Sep 5, 4:34 PM CDTSpecial Weather StatementPAHMassac, Pope41 min
Sep 6, 3:55 AM CDTSpecial Weather StatementILXChampaign35 min
Sep 6, 4:12 AM CDTSpecial Weather StatementILXDeWitt, McLean, Piatt33 min
Sep 6, 4:12 AM CDTSevere Thunderstorm WarningLOTDuPage, Kane, Kendall, Will31 min
Sep 6, 4:34 AM CDTSpecial Marine WarningLOT116 min
Sep 6, 5:55 AM CDTAreal Flood AdvisoryLOTCook, Kankakee, Will3 hr
Sep 6, 6:17 AM CDTFlash Flood WarningLOTCook, Will3 hr
Sep 6, 6:42 AM CDTFlash Flood WarningLOTKankakee3 hr
Sep 6, 2:56 PM CDTSmall Craft AdvisoryLOT52 hr
Sep 6, 3:27 PM CDTBeach Hazards StatementLOTCook, Lake58 hr
Sep 11, 3:20 PM CDTSmall Craft AdvisoryLOT31 hr
Sep 11, 3:21 PM CDTBeach Hazards StatementLOTCook, Lake37 hr
Sep 12, 2:05 AM CDTDense Fog AdvisoryDVNHancock, Henderson, McDonough, Warren6 hr
Sep 12, 2:26 AM CDTDense Fog AdvisoryILXCass, Fulton, Knox, Marshall, Mason, Peoria and 4 more6 hr
Sep 12, 2:31 AM CDTDense Fog AdvisoryLSXAdams, Brown6 hr
Sep 12, 4:37 PM CDTSpecial Weather StatementDVNRock Island, Whiteside23 min
Sep 13, 3:38 AM CDTSpecial Marine WarningLOT37 min
Sep 13, 7:26 AM CDTSpecial Marine WarningLOT46 min
Sep 13, 9:36 AM CDTSpecial Marine WarningLOT24 min
Sep 13, 10:18 AM CDTSpecial Marine WarningLOT57 min
Sep 13, 11:10 AM CDTSpecial Marine WarningLOT65 min
Sep 13, 11:19 AM CDTSpecial Marine WarningLOT56 min
Sep 13, 12:15 PM CDTSpecial Marine WarningLOT60 min
Sep 16, 4:21 PM CDTSpecial Weather StatementDVNHancock39 min
Sep 16, 4:44 PM CDTSpecial Weather StatementDVNWhiteside46 min
Sep 16, 4:54 PM CDTSpecial Weather StatementDVNHenderson, McDonough, Warren66 min
Sep 16, 5:09 PM CDTSpecial Weather StatementILXSchuyler36 min
Sep 16, 5:18 PM CDTSpecial Weather StatementDVNRock Island57 min
Sep 16, 5:27 PM CDTSpecial Weather StatementDVNWarren48 min
Sep 16, 5:38 PM CDTSpecial Weather StatementILXCass, Fulton, Knox, Morgan, Schuyler37 min
Sep 16, 5:44 PM CDTSpecial Weather StatementDVNRock Island31 min
Sep 16, 6:12 PM CDTSpecial Weather StatementDVNBureau48 min
Sep 16, 6:13 PM CDTSpecial Weather StatementILXCass, Fulton, Knox, Mason, Menard, Morgan and 1 more32 min
Sep 16, 6:36 PM CDTSpecial Weather StatementDVNHenry24 min
Sep 16, 6:52 PM CDTSpecial Weather StatementILXStark23 min
Sep 16, 7:16 PM CDTAreal Flood AdvisoryLOTLee3 hr
Sep 16, 7:17 PM CDTSpecial Weather StatementILXStark28 min
Sep 16, 7:46 PM CDTSpecial Weather StatementDVNStephenson44 min
Sep 16, 8:29 PM CDTAreal Flood AdvisoryLOTWinnebago3 hr
Sep 16, 8:46 PM CDTFlash Flood WarningLOTWinnebago62 min
Sep 17, 3:54 AM CDTSmall Craft AdvisoryLOT29 hr
Sep 17, 3:55 AM CDTBeach Hazards StatementLOTCook, Lake29 hr
Sep 17, 6:02 AM CDTAreal Flood AdvisoryLOTCook3 hr
Sep 17, 7:26 AM CDTFlash Flood WarningLOTCook, DuPage5 hr
Sep 17, 7:30 AM CDTSpecial Marine WarningLOT90 min
Sep 17, 8:11 AM CDTSpecial Marine WarningLOT49 min
Sep 17, 8:53 AM CDTSpecial Marine WarningLOT2 hr
Sep 17, 10:07 AM CDTFlash Flood WarningLOTCook7 hr
Sep 17, 10:50 AM CDTFlash Flood Warning Considerable damage threatLOTCook3 hr
Sep 17, 12:35 PM CDTSpecial Marine WarningLOT115 min
Sep 17, 4:57 PM CDTAreal Flood WarningLOTCook16 hr
Sep 18, 8:57 AM CDTAreal Flood AdvisoryLOTCook2 hr
Sep 20, 5:39 AM CDTAreal Flood AdvisoryLOTBoone, DeKalb, Kane, McHenry5 hr
Sep 21, 5:37 PM CDTAreal Flood AdvisoryILXDeWitt3 hr
Sep 21, 7:02 PM CDTAreal Flood AdvisoryILXDeWitt3 hr
Sep 21, 9:01 PM CDTAreal Flood AdvisoryILXLogan36 min
Sep 21, 9:37 PM CDTFlash Flood WarningILXLogan3 hr
Sep 22, 12:54 AM CDTAreal Flood AdvisoryILXDeWitt, Logan, Macon9 hr
Sep 22, 4:39 AM CDTAreal Flood AdvisoryLOTLaSalle, Livingston4 hr
Sep 23, 2:43 PM CDTSmall Craft AdvisoryLOT18 hr
Sep 23, 10:34 PM CDTBeach Hazards StatementLOTCook, Lake14 hr
Sep 24, 7:40 PM CDTSpecial Weather StatementDVNRock Island50 min
Sep 24, 8:36 PM CDTSpecial Weather StatementDVNRock Island39 min
Sep 24, 9:10 PM CDTSpecial Weather StatementDVNHenry50 min
Sep 24, 9:16 PM CDTSpecial Weather StatementILXKnox29 min
Sep 24, 9:22 PM CDTSpecial Weather StatementILXMason23 min
Sep 25, 3:05 AM CDTAreal Flood AdvisoryILXTazewell2 hr
Sep 25, 9:07 AM CDTDense Fog AdvisoryDVNHenry, Mercer, Rock Island2 hr
Sep 25, 2:56 PM CDTSpecial Weather StatementDVNPutnam49 min
Sep 25, 4:09 PM CDTSpecial Weather StatementDVNStephenson51 min
Sep 25, 4:48 PM CDTSpecial Weather StatementDVNStephenson42 min
Sep 25, 5:22 PM CDTSpecial Weather StatementDVNCarroll38 min
Sep 26, 9:42 AM CDTAreal Flood AdvisoryLOTCook109 min
Sep 26, 9:43 AM CDTBeach Hazards StatementLOTCook, Lake36 hr
Sep 26, 1:20 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Ford and 25 more85 min
Sep 26, 2:02 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Clay, Coles, Crawford and 23 more88 min
Sep 26, 3:09 PM CDTSpecial Weather StatementDVNJo Daviess36 min
Sep 26, 3:27 PM CDTSmall Craft AdvisoryLOT31 hr
Sep 26, 3:51 PM CDTSpecial Weather StatementDVNJo Daviess39 min
Sep 26, 3:52 PM CDTSpecial Weather StatementDVNRock Island53 min
Sep 26, 4:20 PM CDTSevere Thunderstorm WarningLSXAdams, Brown40 min
Sep 26, 4:38 PM CDTSevere Thunderstorm WarningILXMorgan22 min
Sep 26, 4:57 PM CDTSevere Thunderstorm WarningILXMorgan, Scott33 min
Sep 26, 5:02 PM CDTSpecial Weather StatementDVNRock Island58 min
Sep 26, 5:05 PM CDTSevere Thunderstorm WarningDVNHenry, Rock Island40 min
Sep 26, 5:38 PM CDTSpecial Weather StatementILXSangamon52 min
Sep 26, 5:53 PM CDTSpecial Weather StatementLOTWill37 min
Sep 26, 5:56 PM CDTSpecial Weather StatementLOTKankakee34 min
Sep 26, 6:13 PM CDTSpecial Weather StatementLOTOgle47 min
Sep 26, 6:16 PM CDTSevere Thunderstorm WarningLOTLee, Ogle44 min
Sep 26, 6:40 PM CDTSpecial Weather StatementILXChristian20 min
Sep 26, 6:43 PM CDTSpecial Weather StatementILXSangamon17 min
Sep 26, 6:53 PM CDTSevere Thunderstorm WarningILXChristian37 min
Sep 26, 6:53 PM CDTSpecial Weather StatementLOTDeKalb, Ogle52 min
Sep 26, 7:05 PM CDTSpecial Weather StatementILXKnox, Stark25 min
Sep 26, 7:12 PM CDTSpecial Weather StatementILXChristian18 min
Sep 26, 7:37 PM CDTFlash Flood WarningDVNJo Daviess6 hr
Sep 26, 7:45 PM CDTAreal Flood AdvisoryLOTLee, Ogle4 hr
Sep 26, 8:11 PM CDTSpecial Weather StatementILXSangamon19 min
Sep 26, 8:26 PM CDTSpecial Weather StatementDVNJo Daviess49 min
Sep 26, 8:29 PM CDTSpecial Weather StatementILXSangamon16 min
Sep 26, 8:51 PM CDTSevere Thunderstorm Warning Considerable damage threatLSXCalhoun19 min
Sep 26, 9:02 PM CDTSpecial Weather StatementILXChristian13 min
Sep 26, 9:03 PM CDTSpecial Weather StatementILXMorgan27 min
Sep 26, 9:23 PM CDTSpecial Weather StatementILXSangamon22 min
Sep 26, 9:29 PM CDTSpecial Weather StatementDVNJo Daviess46 min
Sep 26, 9:42 PM CDTSpecial Weather StatementILXSangamon18 min
Sep 26, 9:58 PM CDTSpecial Weather StatementPAHPerry32 min
Sep 26, 10:15 PM CDTFlash Flood WarningDVNCarroll, Jo Daviess3 hr
Sep 26, 10:35 PM CDTSpecial Weather StatementILXTazewell25 min
Sep 26, 10:49 PM CDTSevere Thunderstorm WarningILXTazewell41 min
Sep 26, 11:43 PM CDTSevere Thunderstorm WarningLSXMontgomery32 min
Sep 26, 11:45 PM CDTSevere Thunderstorm WarningILXChristian, Shelby30 min
Sep 26, 11:47 PM CDTAreal Flood AdvisoryLOTDeKalb, LaSalle, Lee, Ogle5 hr
Sep 27, 12:13 AM CDTSevere Thunderstorm WarningILXChristian, Shelby15 min
Sep 27, 12:31 AM CDTSevere Thunderstorm WarningLSXMonroe, Saint Clair20 min
Sep 27, 3:07 AM CDTSpecial Weather StatementDVNBureau68 min
Sep 27, 4:05 AM CDTFlash Flood WarningDVNBureau6 hr
Sep 27, 6:43 PM CDTMesoscale DiscussionSPCEdwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 10 more2 hr
Sep 27, 6:54 PM CDTSpecial Weather StatementPAHJackson51 min
Sep 27, 7:27 PM CDTSevere Thunderstorm WarningPAHFranklin, Jackson, Perry, Williamson48 min
Sep 27, 8:25 PM CDTSevere Thunderstorm WarningPAHHardin, Pope50 min
Sep 27, 9:10 PM CDTSpecial Weather StatementPAHHardin35 min
Sep 28, 3:21 AM CDTDense Fog AdvisoryILXCass, Champaign, Christian, Clark, Clay, Coles and 22 more6 hr
Sep 28, 3:59 AM CDTDense Fog AdvisoryDVNHancock, Henderson, McDonough, Warren6 hr
Sep 28, 10:44 PM CDTDense Fog AdvisoryILXChampaign, Clark, Coles, DeWitt, Douglas, Edgar and 7 more10 hr
Sep 29, 1:23 AM CDTDense Fog AdvisoryDVNBureau, Putnam, Stephenson8 hr
Sep 29, 1:34 AM CDTDense Fog AdvisoryLOTBoone, Cook, DeKalb, DuPage, Ford, Grundy and 11 more7 hr
Sep 30, 1:58 AM CDTDense Fog AdvisoryPAHMassac, Pope7 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

By county

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

50 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20222024

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.