503  
WHUS73 KLOT 202138  
MWWLOT  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE CHICAGO IL  
338 PM CST WED NOV 20 2024  
 
LMZ743>745-210545-  
/O.CON.KLOT.SC.Y.0093.000000T0000Z-241121T1600Z/  
/O.UPG.KLOT.GL.A.0011.241121T1600Z-241122T0600Z/  
/O.NEW.KLOT.GL.W.0021.241121T1600Z-241122T0600Z/  
CALUMET HARBOR IL TO GARY IN-GARY TO BURNS HARBOR IN-  
BURNS HARBOR TO MICHIGAN CITY IN-  
338 PM CST WED NOV 20 2024  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST  
THURSDAY...  
...GALE WARNING IN EFFECT FROM 10 AM THURSDAY TO MIDNIGHT CST  
THURSDAY NIGHT...  
 
* WHAT...FOR THE SMALL CRAFT ADVISORY, WEST WINDS TO 30 KT WITH  
OCCASIONAL GALES TO 35 KT AND SIGNIFICANT WAVES TO 9 FT  
OCCASIONALLY TO 12 FT. FOR THE GALE WARNING, NORTHWEST WINDS TO  
45 KT AND SIGNIFICANT WAVES TO 16 FT OCCASIONALLY TO 21 FT  
EXPECTED.  
 
* WHERE...CALUMET HARBOR, IL TO MICHIGAN CITY, IN.  
 
* WHEN...FOR THE SMALL CRAFT ADVISORY, UNTIL 10 AM CST THURSDAY.  
FOR THE GALE WARNING, FROM 10 AM THURSDAY TO MIDNIGHT CST  
THURSDAY NIGHT.  
 
* 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.  
 
 
 
 
 
LMZ740>742-210545-  
/O.CON.KLOT.SC.Y.0093.000000T0000Z-241121T1300Z/  
/O.UPG.KLOT.GL.A.0011.241121T1300Z-241122T0600Z/  
/O.NEW.KLOT.GL.W.0021.241121T1300Z-241122T0600Z/  
WINTHROP HARBOR TO WILMETTE HARBOR IL-  
WILMETTE HARBOR TO NORTHERLY ISLAND IL-  
NORTHERLY ISLAND TO CALUMET HARBOR IL-  
338 PM CST WED NOV 20 2024  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CST  
THURSDAY...  
...GALE WARNING IN EFFECT FROM 7 AM THURSDAY TO MIDNIGHT CST  
THURSDAY NIGHT...  
 
* WHAT...FOR THE SMALL CRAFT ADVISORY, WEST WINDS TO 30 KT WITH  
OCCASIONAL GALES TO 35 KT AND SIGNIFICANT WAVES TO 5 FT. FOR  
THE GALE WARNING, NORTHWEST WINDS TO 45 KT AND SIGNIFICANT WAVES  
TO 14 FT OCCASIONALLY TO 18 FT EXPECTED.  
 
* WHERE...WINTHROP HARBOR TO CALUMET HARBOR, IL.  
 
* WHEN...FOR THE SMALL CRAFT ADVISORY, UNTIL 7 AM CST THURSDAY.  
FOR THE GALE WARNING, FROM 7 AM THURSDAY TO MIDNIGHT CST  
THURSDAY NIGHT.  
 
* 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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