236  
WHUS73 KLOT 190805  
MWWLOT  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE CHICAGO IL  
305 AM CDT MON MAY 19 2025  
 
LMZ743>745-191615-  
/O.EXB.KLOT.SC.Y.0062.250520T0400Z-250521T0600Z/  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
305 AM CDT MON MAY 19 2025  
 
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 1 AM  
CDT WEDNESDAY...  
 
* WHAT...EAST WINDS TO 30 KT AND SIGNIFICANT WAVES TO 6 FT  
OCCASIONALLY TO 8 FT EXPECTED. A FEW 35 KT GALES POSSIBLE ON  
TUESDAY.  
 
* WHERE...CALUMET HARBOR IL TO MICHIGAN CITY IN.  
 
* WHEN...FROM 11 PM THIS EVENING TO 1 AM CDT WEDNESDAY.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER  
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.  
 

 
 

 
 
LMZ740>742-191615-  
/O.CON.KLOT.SC.Y.0062.000000T0000Z-250522T2000Z/  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
305 AM CDT MON MAY 19 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM CDT  
THURSDAY...  
 
* WHAT...NORTHEAST WINDS TO 30 KT. OCCASIONAL 35 KT GALES POSSIBLE  
TONIGHT INTO TUESDAY. SIGNIFICANT WAVES TO 10 FT OCCASIONALLY  
TO 13 FT.  
 
* WHERE...WINTHROP HARBOR TO CALUMET HARBOR IL.  
 
* WHEN...UNTIL 3 PM CDT THURSDAY.  
 
* 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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