310  
FLUS43 KLOT 200847  
HWOLOT  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
247 AM CST MON JAN 20 2025  
 
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-  
010-011-019-210900-  
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-  
247 AM CST MON JAN 20 2025 /347 AM EST MON JAN 20 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...  
 
ELEVATED EXCESSIVE COLD RISK.  
 
DISCUSSION...  
 
AN ARCTIC COLD AIR MASS WILL RESULT IN DANGEROUS WIND CHILLS TO  
25 BELOW ZERO THIS MORNING. AFTER A SLIGHT RECOVERY IN THE  
AFTERNOON, BITTERLY COLD WIND CHILLS RETURN TONIGHT.  
   
DAYS TWO THROUGH SEVEN  
TUESDAY THROUGH SUNDAY.  
 
TUESDAY MORNING...  
ELEVATED EXCESSIVE COLD RISK.  
WEDNESDAY...  
LIMITED EXCESSIVE COLD RISK.  
LIMITED SNOW RISK.  
 
DISCUSSION...  
 
A STRETCH OF BITTERLY COLD WEATHER THROUGH TUESDAY MORNING WILL  
BE ACCOMPANIED BY DANGEROUSLY COLD WIND CHILLS OF -20 DEGREES OR  
COLDER AT TIMES.  
   
SPOTTER INFORMATION STATEMENT  
 
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.  
 
 
 
LMZ740>745-210900-  
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-  
247 AM CST MON JAN 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  
TODAY AND TONIGHT.  
 
WEATHER HAZARDS EXPECTED...  
 
HAZARDOUS CONDITIONS FOR SMALL CRAFT.  
   
DAYS TWO THROUGH SEVEN  
TUESDAY THROUGH SUNDAY.  
 
TUESDAY AND WEDNESDAY...  
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.  
 
 
 
DK  
 
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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