902  
WHUS73 KLOT 281520  
MWWLOT  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE CHICAGO IL  
1020 AM CDT MON APR 28 2025  
 
LMZ740>743-282330-  
/O.CON.KLOT.SC.Y.0055.000000T0000Z-250428T2000Z/  
/O.CON.KLOT.GL.W.0018.250428T2000Z-250429T1800Z/  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
CALUMET HARBOR IL TO GARY IN-  
1020 AM CDT MON APR 28 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM CDT THIS  
AFTERNOON...  
...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO  
1 PM CDT TUESDAY...  
 
* WHAT...FOR THE SMALL CRAFT ADVISORY, SOUTH WINDS TO 30 KT  
EXPECTED. FOR THE GALE WARNING, SOUTHWEST GALES TO 35 KT AND  
SIGNIFICANT WAVES TO 6 FT OCCASIONALLY TO 8 FT EXPECTED.  
 
* WHERE...WINTHROP HARBOR TO CALUMET HARBOR IL, AND CALUMET  
HARBOR IL TO GARY IN.  
 
* WHEN...FOR THE SMALL CRAFT ADVISORY, FROM 9 AM THIS MORNING TO  
3 PM CDT THIS AFTERNOON. FOR THE GALE WARNING, FROM 3 PM THIS  
AFTERNOON TO 1 PM CDT TUESDAY.  
 
* 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.  
 
 
 
 
 
LMZ744-745-282330-  
/O.CON.KLOT.SC.Y.0055.000000T0000Z-250429T2100Z/  
GARY TO BURNS HARBOR IN-BURNS HARBOR TO MICHIGAN CITY IN-  
1020 AM CDT MON APR 28 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT  
TUESDAY...  
 
* WHAT...SOUTH TO SOUTHWEST WINDS TO 30 KT EXPECTED.  
 
* WHERE...GARY TO MICHIGAN CITY IN.  
 
* WHEN...FROM 9 AM THIS MORNING TO 4 PM CDT TUESDAY.  
 
* 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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