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Illinois Severe Weather
Weather warnings issued for Illinois by the National Weather Service — what was warned, where, and how long it stayed in force. 51 of the 68 kept here were severe or extreme.
68 warnings
Every severity, newest first — a state page is where the minor ones are worth counting.
| Warning |
|---|
| Flood WatchNWS Quad Cities IA ILBenton; Linn; Jones; Jackson; Iowa; JohnSevere |
| Hydrologic OutlookNWS Chicago ILBoone, IL; Cook, IL; De Kalb, IL; DuPageUnknown |
| Special Weather StatementNWS Chicago ILBoone; De Kalb; Kendall; Grundy; KankakeModerate |
| Dense Fog AdvisoryNWS Chicago ILMcHenry; Lake; Kane; DuPage; Northern CoModerate |
| Dense Fog AdvisoryNWS Chicago ILGrundy; LivingstonModerate |
| Dense Fog AdvisoryNWS Lincoln ILPiatt; Moultrie; ColesModerate |
| Special Weather StatementNWS Chicago ILKankakee; Iroquois; Southern Cook; EasteModerate |
| Special Weather StatementNWS Chicago ILBoone; McHenry; Lake; De Kalb; Kane; DuPModerate |
| Special Weather StatementNWS Chicago ILBoone; McHenry; Lake; De Kalb; Kane; DuPModerate |
| Flood WarningNWS St Louis MOPike, IL; Pike, MOSevere |
| Flood WarningNWS Milwaukee/Sullivan WILake, IL; Kenosha, WISevere |
| Flood WarningNWS Quad Cities IA ILHancock, IL; Clark, MOSevere |
| Beach Hazards StatementNWS Chicago ILLake; Northern Cook; Central CookModerate |
| Flood WarningNWS Quad Cities IA ILDes Moines, IA; Henderson, ILSevere |
| Flood WarningNWS Quad Cities IA ILDes Moines, IA; Louisa, IA; Henderson, ISevere |
| Flood WarningNWS Quad Cities IA ILDes Moines, IA; Lee, IA; Hancock, IL; HeSevere |
| Flood WarningNWS Chicago ILLee, ILSevere |
| Flood WarningNWS Chicago ILLake, ILSevere |
| Flood WarningNWS St Louis MOAdams, IL; Lewis, MOSevere |
| Flood WarningNWS St Louis MOCalhoun, IL; Lincoln, MOSevere |
| Flood WarningNWS St Louis MOPike, IL; Marion, MOSevere |
| Flood WarningNWS St Louis MOPike, IL; Ralls, MOSevere |
| Flood WarningNWS St Louis MOAdams, IL; Lewis, MOSevere |
| Flood WarningNWS St Louis MOCalhoun, IL; Pike, MOSevere |
| Flood WatchNWS Chicago ILBureau; Putnam; La SalleSevere |
| Flood WatchNWS Chicago ILOgle; Lee; De Kalb; Kane; DuPage; La SalSevere |
| Flood WatchNWS Chicago ILWinnebago; Boone; McHenry; LakeMinor |
| Flood WarningNWS Chicago ILLee, ILSevere |
| Flood WarningNWS Milwaukee/Sullivan WILake, IL; Kenosha, WISevere |
| Flood WarningNWS Quad Cities IA ILHenry, IL; Rock Island, IL; Whiteside, ISevere |
| Flood WarningNWS Quad Cities IA ILHenry, IL; Rock Island, ILSevere |
| Flood WarningNWS Chicago ILLake, ILSevere |
| Flood AdvisoryNWS Chicago ILDe Kalb, IL; Lee, ILMinor |
| Flood AdvisoryNWS Chicago ILBoone, IL; McHenry, IL; Winnebago, ILMinor |
| Heat AdvisoryNWS Paducah KYJefferson; Wayne; Edwards; Wabash; PerryModerate |
| Flash Flood WarningNWS Chicago ILDe Kalb, IL; La Salle, IL; Lee, ILSevere |
| Flood WatchNWS Quad Cities IA ILDes Moines; HendersonSevere |
| Flood WatchNWS Quad Cities IA ILMuscatine; Scott; Rock IslandSevere |
| Flood WatchNWS Quad Cities IA ILHancock; ClarkSevere |
| Flood WatchNWS Quad Cities IA ILMuscatine; Louisa; Rock Island; MercerSevere |
| Flood WatchNWS Quad Cities IA ILMuscatine; Rock IslandSevere |
| Flood WatchNWS Quad Cities IA ILDes Moines; Lee; Henderson; HancockSevere |
| Flood WatchNWS Quad Cities IA ILLouisa; MercerSevere |
| Flood WatchNWS Quad Cities IA ILLouisa; Des Moines; Mercer; HendersonSevere |
| Flood WarningNWS Chicago ILLa Salle, ILSevere |
| Flood WatchNWS Chicago ILNorthern Will; Southern WillSevere |
| Flood WarningNWS Chicago ILCook, IL; Lake, INSevere |
| Flood WatchNWS Milwaukee/Sullivan WILake; KenoshaSevere |
| Flood WatchNWS Chicago ILLa Salle; Grundy; Kankakee; Southern WilSevere |
| Flood WatchNWS Quad Cities IA ILKeokuk; Henry; Bureau; PutnamSevere |
| Beach Hazards StatementNWS Chicago ILNorthern Cook; Central CookModerate |
| Beach Hazards StatementNWS Chicago ILLakeModerate |
| Flood WatchNWS Milwaukee/Sullivan WIWinnebago; Green; RockSevere |
| Flood WatchNWS Milwaukee/Sullivan WILake; KenoshaSevere |
| Flood WatchNWS Quad Cities IA ILBenton; Iowa; Johnson; Washington; LouisSevere |
| Flood WatchNWS Quad Cities IA ILRock Island; HenrySevere |
| Flood WatchNWS Quad Cities IA ILWhiteside; Rock Island; HenrySevere |
| Flood WatchNWS Chicago ILLakeSevere |
| Flood WatchNWS Chicago ILCentral CookSevere |
| Flood WatchNWS Chicago ILNorthern Cook; Central CookSevere |
| Flood WatchNWS Chicago ILLake; Northern CookSevere |
| Flood WatchNWS Chicago ILLakeSevere |
| Flood WatchNWS Quad Cities IA ILLinn; Cedar; Muscatine; Scott; Rock IslaSevere |
| Beach Hazards StatementNWS Chicago ILNorthern Cook; Central CookModerate |
| Beach Hazards StatementNWS Chicago ILLakeModerate |
| Flood WatchNWS Quad Cities IA ILJones; Clinton; WhitesideSevere |
| Flood WatchNWS Chicago ILLake; Lee; De Kalb; Kane; DuPage; KendalSevere |
| Flood WatchNWS Chicago ILWinnebago; Boone; McHenry; OgleSevere |
Source: the National Weather Service. A warning covering several states appears on each of their pages. Expired warnings are kept and marked, because the count over time is the part that says anything.