527  
FLUS43 KLOT 071937  
HWOLOT  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
237 PM CDT TUE JUL 7 2026  
 
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-  
010-011-019-081945-  
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-  
237 PM CDT TUE JUL 7 2026 /337 PM EDT TUE JUL 7 2026/  
 
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
 
WEDNESDAY THROUGH MONDAY.  
 
WEDNESDAY NIGHT...  
LIMITED THUNDERSTORM RISK NEAR THE WI/IL BORDER LATE.  
THURSDAY...  
LIMITED FLOODING RISK.  
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:  
LEVEL 1 OF 5 SEVERE THUNDERSTORM RISK.  
FRIDAY...  
LIMITED FLOODING RISK.  
ELEVATED THUNDERSTORM RISK.  
SATURDAY...  
LIMITED THUNDERSTORM RISK.  
 
DISCUSSION...  
 
A SLOW-MOVING COLD FRONT WILL PUSH ACROSS THE AREA IN THE  
THURSDAY THROUGH FRIDAY TIMEFRAME. SCATTERED THUNDERSTORMS ARE  
EXPECTED AT TIMES, SOME OF WHICH COULD BE STRONG TO SEVERE AND  
PRODUCE LOCALLY HEAVY RAINFALL. THUNDERSTORM COVERAGE IS EXPECTED  
TO DECREASE BY SATURDAY.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.  
 

 
 
LMZ740>745-081945-  
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-  
237 PM CDT TUE JUL 7 2026  
 
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
 
WEDNESDAY THROUGH MONDAY.  
 
THURSDAY...  
LIMITED THUNDERSTORM RISK...WITH AN ASSOCIATED:  
LEVEL 1 OF 5 SEVERE THUNDERSTORM RISK.  
FRIDAY AND SATURDAY...  
LIMITED THUNDERSTORM RISK.  
 

 
 
RATZER  
 
VISIT US AT WWW.WEATHER.GOV/CHICAGO  
 
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