937  
WHUS73 KLOT 281443  
MWWLOT  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE CHICAGO IL  
943 AM CDT FRI MAR 28 2025  
 
LMZ740>745-282245-  
/O.CON.KLOT.GL.W.0012.250328T1800Z-250329T0800Z/  
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-  
943 AM CDT FRI MAR 28 2025  
 
...GALE WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO  
3 AM CDT SATURDAY...  
 
* WHAT...SOUTHWEST GALES TO 35 KT AND SIGNIFICANT WAVES TO 5 FT  
EXPECTED.  
 
* WHERE...ILLINOIS AND INDIANA NEARSHORE FROM WINTHROP HARBOR IL  
TO MICHIGAN CITY IN.  
 
* WHEN...FROM 1 PM THIS AFTERNOON TO 3 AM CDT SATURDAY.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD  
CAPSIZE OR DAMAGE VESSELS AND REDUCE VISIBILITY.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR HAZARDOUS CONDITIONS.  
 

 
 

 
 
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