Alert archive / Illinois / 2017

Weather alerts in Illinois, September 2017

60 weather alerts in September 2017, 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 2017. Tap one for its archive.

Alerts
60
Warnings
18
Watches
1
Advisories
18
Busiest day
September 4, 201714 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 3, 3:07 AM CDTSmall Craft AdvisoryLOT4 days
Sep 3, 3:25 PM CDTBeach Hazards StatementLOT4 days
Sep 4, 2:54 AM CDTLake Wind AdvisoryPAHAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more16 hr
Sep 4, 2:17 PM CDTMesoscale DiscussionSPCChampaign, Douglas, Edgar, Ford, Iroquois, Vermilion118 min
Sep 4, 3:43 PM CDTMesoscale DiscussionSPCChampaign, Christian, DeWitt, Douglas, Ford, Greene and 16 more2 hr
Sep 4, 4:00 PM CDTSevere Thunderstorm WatchSPCBond, Calhoun, Champaign, Christian, Clark, Clay and 29 more6 hr
Sep 4, 4:05 PM CDTSpecial Weather StatementILXSangamon55 min
Sep 4, 4:21 PM CDTSevere Thunderstorm WarningILXMorgan, Sangamon24 min
Sep 4, 4:23 PM CDTSevere Thunderstorm WarningILXSangamon38 min
Sep 4, 4:25 PM CDTSevere Thunderstorm WarningLSXGreene, Macoupin, Montgomery65 min
Sep 4, 4:51 PM CDTSpecial Weather StatementILXChristian39 min
Sep 4, 5:15 PM CDTSevere Thunderstorm WarningLSXJersey, Macoupin, Montgomery60 min
Sep 4, 5:22 PM CDTSevere Thunderstorm WarningILXMacon, Moultrie, Piatt, Shelby38 min
Sep 4, 6:05 PM CDTMesoscale DiscussionSPCBond, Calhoun, Champaign, Christian, Clark, Clay and 28 more115 min
Sep 4, 6:11 PM CDTSevere Thunderstorm WarningLSXBond, Jersey, Macoupin, Madison, Montgomery64 min
Sep 4, 6:53 PM CDTSevere Thunderstorm WarningLSXBond, Clinton, Madison, Saint Clair82 min
Sep 4, 7:47 PM CDTSevere Thunderstorm WarningLSXMonroe43 min
Sep 4, 7:55 PM CDTSevere Thunderstorm WarningLSXClinton, Saint Clair, Washington41 min
Sep 4, 9:26 PM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Coles, Crawford and 19 more64 min
Sep 4, 9:27 PM CDTSpecial Weather StatementPAHHamilton48 min
Sep 4, 10:02 PM CDTSpecial Weather StatementPAHFranklin43 min
Sep 4, 10:06 PM CDTSevere Thunderstorm WarningPAHFranklin, Hamilton, Saline, Williamson21 min
Sep 4, 10:47 PM CDTSpecial Weather StatementPAHWilliamson43 min
Sep 5, 4:06 AM CDTSpecial Weather StatementPAHHamilton, White24 min
Sep 5, 4:48 AM CDTSpecial Weather StatementPAHAlexander27 min
Sep 5, 5:12 AM CDTSevere Thunderstorm WarningPAHAlexander, Pulaski33 min
Sep 5, 5:30 AM CDTSevere Thunderstorm WarningPAHPulaski35 min
Sep 5, 6:26 AM CDTSpecial Weather StatementPAHMassac49 min
Sep 6, 4:25 PM CDTBeach Hazards StatementLOT5 hr
Sep 11, 1:45 PM CDTLake Wind AdvisoryPAHAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more22 hr
Sep 14, 1:09 AM CDTDense Fog AdvisoryILXCass, Champaign, Christian, Clark, Clay, Coles and 29 more9 hr
Sep 14, 1:14 AM CDTDense Fog AdvisoryLOTBoone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more9 hr
Sep 14, 3:19 AM CDTDense Fog AdvisoryLSXBond, Brown, Calhoun, Clinton, Fayette, Greene and 10 more6 hr
Sep 14, 3:58 AM CDTMarine Dense Fog AdvisoryLOT5 hr
Sep 14, 4:28 AM CDTDense Fog AdvisoryDVNBureau, Carroll, Henry, McDonough, Putnam, Stephenson and 2 more6 hr
Sep 14, 6:10 AM CDTDense Fog AdvisoryPAHAlexander, Edwards, Franklin, Hamilton, Jackson, Jefferson and 9 more3 hr
Sep 14, 9:38 AM CDTMarine Dense Fog AdvisoryLOT5 hr
Sep 15, 5:01 AM CDTDense Fog AdvisoryPAHEdwards, Gallatin, Hamilton, Hardin, Saline, Wabash and 2 more4 hr
Sep 18, 7:58 PM CDTSpecial Weather StatementPAHUnion32 min
Sep 18, 8:19 PM CDTSpecial Weather StatementPAHJackson26 min
Sep 18, 8:25 PM CDTSevere Thunderstorm WarningPAHJackson, Williamson35 min
Sep 18, 8:50 PM CDTSevere Thunderstorm WarningPAHFranklin, Jackson, Perry, Williamson14 min
Sep 18, 9:00 PM CDTSpecial Weather StatementLSXMadison45 min
Sep 18, 11:19 PM CDTDense Fog AdvisoryLSXAdams, Bond, Brown, Calhoun, Greene, Jersey and 6 more11 hr
Sep 18, 11:49 PM CDTSpecial Weather StatementILXVermilion41 min
Sep 19, 12:43 AM CDTSevere Thunderstorm WarningPAHAlexander, Union47 min
Sep 19, 12:50 AM CDTDense Fog AdvisoryDVNHancock, Henderson, McDonough, Mercer, Rock Island, Warren9 hr
Sep 19, 1:15 AM CDTSpecial Weather StatementPAHUnion45 min
Sep 19, 1:18 AM CDTDense Fog AdvisoryILXCass, Christian, DeWitt, Fulton, Knox, Logan and 9 more9 hr
Sep 20, 12:31 AM CDTDense Fog AdvisoryLOTLake, McHenry8 hr
Sep 20, 7:38 PM CDTSpecial Weather StatementDVNCarroll, Henry, Mercer, Rock Island, Whiteside67 min
Sep 20, 7:40 PM CDTSpecial Weather StatementDVNCarroll, Henry, Mercer, Rock Island, Whiteside65 min
Sep 20, 7:58 PM CDTSevere Thunderstorm WarningDVNHenry, Rock Island47 min
Sep 20, 8:37 PM CDTFlash Flood WarningDVNRock Island6 hr
Sep 21, 2:08 AM CDTFlash Flood WarningDVNRock Island6 hr
Sep 22, 10:16 AM CDTHeat AdvisoryDVNCarroll, Hancock, Henderson, Henry, Jo Daviess, McDonough and 4 more9 hr
Sep 26, 2:58 PM CDTSmall Craft AdvisoryLOT43 hr
Sep 26, 3:56 PM CDTBeach Hazards StatementLOT36 hr
Sep 28, 2:56 PM CDTSmall Craft AdvisoryLOT43 hr
Sep 28, 3:25 PM CDTBeach Hazards StatementLOTLake43 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.

60 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20162018

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.