329  
WHUS73 KLOT 200257  
MWWLOT  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE CHICAGO IL  
957 PM CDT SAT SEP 19 2026  
 
LMZ740>742-201100-  
/O.CON.KLOT.SC.Y.0083.260920T1200Z-260923T0000Z/  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
957 PM CDT SAT SEP 19 2026  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM SUNDAY TO  
7 PM CDT TUESDAY...  
 
* WHAT...NORTHEAST WINDS TO 30 KT AND SIGNIFICANT WAVES TO 10 FT  
OCCASIONALLY TO 13 FT EXPECTED.  
 
* WHERE...WINTHROP HARBOR TO NORTHERLY ISLAND, IL.  
 
* WHEN...FROM 7 AM SUNDAY TO 7 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.  
 
 
 
 
 
LMZ743-744-201100-  
/O.CON.KLOT.SC.Y.0083.260920T1500Z-260923T0000Z/  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
957 PM CDT SAT SEP 19 2026  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM SUNDAY TO  
7 PM CDT TUESDAY...  
 
* WHAT...NORTHEAST WINDS TO 30 KT AND SIGNIFICANT WAVES TO 7 FT  
OCCASIONALLY TO 9 FT EXPECTED.  
 
* WHERE...CALUMET HARBOR, IL TO BURNS HARBOR, IN.  
 
* WHEN...FROM 10 AM SUNDAY TO 7 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.  
 
 
 
 
 
LMZ745-201100-  
/O.CON.KLOT.SC.Y.0083.260920T1800Z-260921T1200Z/  
BURNS HARBOR TO MICHIGAN CITY IN-  
957 PM CDT SAT SEP 19 2026  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 PM SUNDAY TO  
7 AM CDT MONDAY...  
 
* WHAT...NORTHEAST WINDS TO 25 KT AND SIGNIFICANT WAVES TO 6 FT  
OCCASIONALLY TO 8 FT EXPECTED.  
 
* WHERE...BURNS HARBOR TO MICHIGAN CITY, IN.  
 
* WHEN...FROM 1 PM SUNDAY TO 7 AM CDT MONDAY.  
 
* 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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