977  
WHUS73 KLOT 192034  
MWWLOT  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE CHICAGO IL  
234 PM CST THU DEC 19 2024  
 
LMZ740>742-200445-  
/O.CON.KLOT.SC.Y.0107.241220T0900Z-241221T1500Z/  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
234 PM CST THU DEC 19 2024  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM FRIDAY TO  
9 AM CST SATURDAY...  
 
* WHAT...NORTH WINDS TO 30 KT WITH A FEW GALE FORCE GUSTS TO 35  
KT AND SIGNIFICANT WAVES TO 9 FT OCCASIONALLY TO 12 FT  
EXPECTED.  
 
* WHERE...WINTHROP HARBOR TO CALUMET HARBOR IL.  
 
* WHEN...FROM 3 AM FRIDAY TO 9 AM CST SATURDAY.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.  
 

 
 

 
 
LMZ743>745-200445-  
/O.CON.KLOT.SC.Y.0107.241220T1200Z-241221T2100Z/  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
234 PM CST THU DEC 19 2024  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM FRIDAY TO  
3 PM CST SATURDAY...  
 
* WHAT...NORTH WINDS TO 30 KT WITH A FEW GALE FORCE GUSTS TO 35  
KT AND SIGNIFICANT WAVES TO 10 FT OCCASIONALLY TO 13 FT  
EXPECTED.  
 
* WHERE...CALUMET HARBOR IL TO MICHIGAN CITY IN.  
 
* WHEN...FROM 6 AM FRIDAY TO 3 PM CST SATURDAY.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.  
 

 
 

 
 
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