908  
FLUS43 KLOT 202048  
HWOLOT  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
348 PM CDT FRI JUN 20 2025  
 
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-  
010-011-019-212100-  
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-  
348 PM CDT FRI JUN 20 2025 /448 PM EDT FRI JUN 20 2025/  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL  
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.  
   
DAY ONE  
TONIGHT.  
 
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.  
   
DAYS TWO THROUGH SEVEN  
SATURDAY THROUGH THURSDAY.  
 
SATURDAY...  
SIGNIFICANT EXCESSIVE HEAT RISK.  
LIMITED NON-THUNDERSTORM WIND RISK.  
SUNDAY AND MONDAY...  
SIGNIFICANT EXCESSIVE HEAT RISK.  
TUESDAY AND WEDNESDAY...  
LIMITED THUNDERSTORM RISK.  
LIMITED EXCESSIVE HEAT RISK.  
THURSDAY...  
LIMITED THUNDERSTORM RISK.  
 
DISCUSSION...  
 
DANGEROUS HEAT AND HUMIDITY IS EXPECTED THIS WEEKEND INTO EARLY  
NEXT WEEK.  
 
STRONG SOUTHWEST WINDS ARE EXPECTED ON SATURDAY, WITH GUSTS UP TO  
40 TO 45 MPH FOR AREAS NEAR AND NORTH OF I-80.  
   
SPOTTER INFORMATION STATEMENT  
 
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.  
 
 
 
LMZ740>745-212100-  
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-  
348 PM CDT FRI JUN 20 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  
TONIGHT.  
 
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.  
   
DAYS TWO THROUGH SEVEN  
SATURDAY THROUGH THURSDAY.  
 
SATURDAY...  
GALE FORCE WINDS.  
SUNDAY AND MONDAY...  
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.  
TUESDAY THROUGH THURSDAY...  
LIMITED THUNDERSTORM RISK.  
 
 
 
CASTRO  
 
VISIT US AT WWW.WEATHER.GOV/CHICAGO  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IL Page
The Nexlab IN Page
Main Text Page