927  
FLUS43 KLOT 050923  
HWOLOT  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
423 AM CDT TUE JUL 5 2022  
 
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-  
010-011-019-060930-  
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-  
423 AM CDT TUE JUL 5 2022 /523 AM EDT TUE JUL 5 2022/  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL  
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.  
   
DAY ONE
 
TODAY AND TONIGHT.  
 
WEATHER HAZARDS EXPECTED...  
 
SIGNIFICANT THUNDERSTORM RISK...WITH AN ASSOCIATED:  
LIMITED HAIL RISK...UP TO 1 INCH IN DIAMETER.  
LIMITED DAMAGING WIND RISK...UP TO 70 MPH.  
SIGNIFICANT FLASH FLOOD RISK.  
SIGNIFICANT EXCESSIVE HEAT RISK.  
 
DISCUSSION...  
 
EXPLOSIVE THUNDERSTORM DEVELOPMENT IS EXPECTED THIS AFTERNOON  
OVER NORTHEAST AND EVENTUALLY MOST OF NORTHERN ILLINOIS INTO  
NORTHWEST INDIANA. SOME OF THE STORMS COULD BECOME SEVERE WITH THE  
PRIMARY THREAT SEVERE THREAT BEING LOCALLY DAMAGING WINDS TO 70  
MPH.  
 
SOME OF THE THUNDERSTORMS COULD PRODUCE TORRENTIAL RAINFALL, WHICH  
GIVEN THEIR SLOW MOVEMENT COULD RESULT IN LOCALIZED FLASH FLOODING  
PROBLEMS LATE THIS AFTERNOON INTO THIS EVENING.  
 
IN ADDITION, PRIOR TO THE THUNDERSTORMS, HEAT INDICES THIS  
AFTERNOON WILL REACH 105 TO 110 DEGREES.  
   
DAYS TWO THROUGH SEVEN
 
WEDNESDAY THROUGH MONDAY.  
 
WEDNESDAY...  
LIMITED SEVERE THUNDERSTORM RISK.  
ELEVATED FLOODING RISK.  
THURSDAY...  
LIMITED SEVERE THUNDERSTORM RISK.  
LIMITED FLOODING RISK.  
SUNDAY NIGHT AND MONDAY...  
LIMITED THUNDERSTORM RISK.  
 
DISCUSSION:  
 
ANOTHER ROUND OR TWO OF THUNDERSTORMS IS POSSIBLE WEDNESDAY  
INTO THURSDAY. THERE WILL BE AN ASSOCIATED RISK OF LOCALLY HEAVY  
RAINFALL AND POSSIBLY SEVERE WEATHER WITH ANY OF THE MORE  
ORGANIZED ROUNDS OF STORMS.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTERS MAY BE NEEDED AFTER 2 PM.  
 
GENERAL STORM MOTION OF THE DAY:  
 
MOVING TOWARD EAST OR SOUTHEAST AT 10 TO 20 MPH.  
 

 
 
LMZ740>745-060930-  
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-  
423 AM CDT TUE JUL 5 2022  
 
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.  
 
WEATHER HAZARDS EXPECTED...  
 
ELEVATED THUNDERSTORM RISK...WITH AN ASSOCIATED:  
LIMITED HAIL RISK...UP TO 1 INCH IN DIAMETER.  
LIMITED THUNDERSTORM WIND GUST RISK...UP TO 60 KNOTS.  
   
DAYS TWO THROUGH SEVEN
 
WEDNESDAY THROUGH MONDAY.  
 
WEDNESDAY AND THURSDAY...  
LIMITED SEVERE THUNDERSTORM RISK.  
MONDAY...  
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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