963  
FLUS43 KLOT 040910  
HWOLOT  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
410 AM CDT WED JUN 4 2025  
 
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-  
010-011-019-050915-  
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-  
410 AM CDT WED JUN 4 2025 /510 AM EDT WED JUN 4 2025/  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL  
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.  
   
DAY ONE  
TODAY AND TONIGHT.  
 
WEATHER HAZARDS EXPECTED...  
 
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:  
LEVEL 1 OF 5 DAMAGING WIND RISK...UP TO 60 MPH.  
 
DISCUSSION...  
 
A FEW THUNDERSTORMS ARE EXPECTED THIS AFTERNOON SOUTHEAST OF A  
VALPARAISO TO PONTIAC LINE. AN ISOLATED SEVERE THUNDERSTORM OR TWO  
WITH LOCALLY DAMAGING WINDS TO 60 MPH CANNOT BE RULED OUT.  
   
DAYS TWO THROUGH SEVEN  
THURSDAY THROUGH TUESDAY.  
 
FRIDAY AFTERNOON AND NIGHT...  
LIMITED THUNDERSTORM RISK WELL SOUTH OF I-80.  
   
SPOTTER INFORMATION STATEMENT  
 
SPOTTERS MAY BE NEEDED BETWEEN 2 PM AND 8 PM SOUTHEAST OF A  
VALPARAISO TO PONTIAC LINE.  
 
GENERAL STORM MOTION OF THE DAY:  
 
MOVING TOWARD THE NORTHEAST AT 35 TO 40 MPH.  
 
 
 
LMZ740>745-050915-  
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-  
410 AM CDT WED JUN 4 2025  
 
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  
TODAY AND TONIGHT.  
 
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.  
   
DAYS TWO THROUGH SEVEN  
THURSDAY THROUGH TUESDAY.  
 
FRIDAY NIGHT...  
LIMITED THUNDERSTORM RISK.  
 
 
 
- IZZI  
 
VISIT US AT WWW.WEATHER.GOV/CHICAGO  
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