220  
FLUS43 KLOT 210240  
HWOLOT  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
940 PM CDT THU JUN 20 2024  
 
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-  
010-011-019-220245-  
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-  
LA SALLE-KENDALL-GRUNDY-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-  
NORTHERN COOK-CENTRAL COOK-SOUTHERN COOK-NORTHERN WILL-  
SOUTHERN WILL-EASTERN WILL-LAKE IN-PORTER-NEWTON-JASPER-BENTON-  
940 PM CDT THU JUN 20 2024 /1040 PM EDT THU JUN 20 2024/  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL  
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.  
   
DAY ONE
 
TONIGHT.  
 
WEATHER HAZARDS EXPECTED...  
 
LIMITED FOG RISK.  
 
DISCUSSION...  
 
PATCHY DENSE FOG IS POSSIBLE, ESPECIALLY NEAR THE LAKE MICHIGAN  
SHORE.  
   
DAYS TWO THROUGH SEVEN
 
FRIDAY THROUGH WEDNESDAY.  
 
FRIDAY...  
LIMITED THUNDERSTORM RISK NORTH OF I-88.  
LIMITED EXCESSIVE HEAT RISK AWAY FROM THE LAKESHORE.  
SATURDAY...  
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:  
LEVEL 1 OF 5 SEVERE THUNDERSTORM RISK.  
LIMITED EXCESSIVE HEAT RISK.  
SUNDAY MORNING...  
LIMITED THUNDERSTORM RISK WELL SOUTHEAST OF I-55.  
TUESDAY...  
LIMITED THUNDERSTORM RISK.  
 
DISCUSSION...  
 
PEAK AFTERNOON HEAT INDICES IN THE 95 TO 100 DEGREE RANGE ALONG  
WITH INTERMITTENT THUNDERSTORM CHANCES WILL CONTINUE THROUGH  
SATURDAY, ALTHOUGH COOLER CONDITIONS ARE EXPECTED NEAR LAKE  
MICHIGAN ON FRIDAY. A FEW STORMS COULD BE STRONG TO SEVERE  
NORTHWEST OF INTERSTATE 55 LATE SATURDAY AFTERNOON AND EVENING.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.  
 

 
 
LMZ740>745-220245-  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
940 PM CDT THU JUN 20 2024  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE ILLINOIS  
NEARSHORE WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE  
WATERS OF LAKE MICHIGAN.  
   
DAY ONE
 
TONIGHT.  
 
WEATHER HAZARDS EXPECTED...  
 
SIGNIFICANT DENSE FOG.  
   
DAYS TWO THROUGH SEVEN
 
FRIDAY THROUGH WEDNESDAY.  
 
FRIDAY...  
LIMITED THUNDERSTORM RISK.  
SATURDAY...  
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:  
LEVEL 1 OF 5 SEVERE THUNDERSTORM RISK.  
TUESDAY...  
LIMITED THUNDERSTORM RISK.  
 

 
 
- IZZI  
 
VISIT US AT WWW.WEATHER.GOV/CHICAGO  
 
FOLLOW US ON FACEBOOK, TWITTER, AND YOUTUBE AT:  
WWW.FACEBOOK.COM/NWSCHICAGO  
WWW.TWITTER.COM/NWSCHICAGO  
WWW.YOUTUBE.COM/NWSCHICAGO  
 
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