497  
FLUS43 KLOT 182047  
HWOLOT  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
247 PM CST SAT JAN 18 2025  
 
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-  
010-011-019-192100-  
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 PM CST SAT JAN 18 2025 /347 PM EST SAT JAN 18 2025/  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL  
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.  
   
DAY ONE
 
TONIGHT.  
 
WEATHER HAZARDS EXPECTED...  
 
LIMITED EXCESSIVE COLD RISK.  
 
DISCUSSION...  
 
AN ARCTIC COLD AIR MASS MOVES IN TONIGHT WITH BITTERLY COLD  
TEMPERATURES INTO SUNDAY MORNING.  
   
DAYS TWO THROUGH SEVEN
 
SUNDAY THROUGH FRIDAY.  
 
SUNDAY THROUGH TUESDAY...  
ELEVATED EXCESSIVE COLD RISK.  
WEDNESDAY...  
LIMITED EXCESSIVE COLD RISK.  
 
DISCUSSION...  
 
A STRETCH OF BITTERLY COLD WEATHER SUNDAY MORNING THROUGH  
WEDNESDAY WILL BE ACCOMPANIED BY DANGEROUSLY COLD WIND CHILLS OF  
-20 DEGREES OR COLDER AT TIMES, ESPECIALLY SUNDAY NIGHT INTO  
MONDAY MORNING AND MONDAY NIGHT INTO TUESDAY MORNING.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.  
 

 
 
LMZ740>745-192100-  
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 PM CST SAT JAN 18 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.  
 
WEATHER HAZARDS EXPECTED...  
 
HAZARDOUS CONDITIONS FOR SMALL CRAFT.  
ELEVATED FREEZING SPRAY RISK.  
   
DAYS TWO THROUGH SEVEN
 
SUNDAY THROUGH FRIDAY.  
 
SUNDAY...  
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.  
SIGNIFICANT FREEZING SPRAY RISK.  
MONDAY...  
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.  
WEDNESDAY...  
HAZARDOUS CONDITIONS FOR SMALL CRAFT ARE LIKELY.  
 

 
 
KJB  
 
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  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab IL Page
The Nexlab IN Page Main Text Page