703  
WHUS73 KLOT 150250  
MWWLOT  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE CHICAGO IL  
950 PM CDT WED MAY 14 2025  
 
LMZ744-745-150400-  
/O.EXP.KLOT.MF.Y.0004.000000T0000Z-250515T0300Z/  
GARY TO BURNS HARBOR IN-BURNS HARBOR TO MICHIGAN CITY IN-  
950 PM CDT WED MAY 14 2025  
   
..DENSE FOG ADVISORY WILL EXPIRE AT 10 PM CDT THIS EVENING
 
 
FOG HAS MOVED INTO THE OPEN WATERS OF LAKE MICHIGAN AND TOWARD THE  
ILLINOIS SHORELINE. IF FOG REDEVELOPS, A DENSE FOG ADVISORY WILL  
BE REISSUED.  
 

 
 
LMZ740>743-151100-  
/O.CON.KLOT.MF.Y.0004.000000T0000Z-250515T1700Z/  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
CALUMET HARBOR IL TO GARY IN-  
950 PM CDT WED MAY 14 2025  
   
..DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON CDT THURSDAY
 
 
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO 1/4 NM OR LESS  
OCCURRING.  
 
* WHERE...WINTHROP HARBOR TO CALUMET HARBOR IL, AND CALUMET  
HARBOR IL TO GARY IN.  
 
* WHEN...UNTIL NOON CDT THURSDAY.  
 
* IMPACTS...LOW VISIBILITY WILL MAKE NAVIGATION DIFFICULT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
IF YOU MUST NAVIGATE, PROCEED WITH CAUTION. USE PROPER FOG  
SIGNALS. MAKE SURE ALL RUNNING LIGHTS ARE ON. REMEMBER TO USE  
YOUR RADAR AND COMPASS.  
 

 
 

 
 
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