100  
WHUS73 KGRR 180207  
MWWGRR  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
907 PM EST WED DEC 17 2025  
 
LMZ844>849-181015-  
/O.CON.KGRR.GL.W.0035.251218T0600Z-251219T1200Z/  
ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI-  
HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI-  
WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI-  
907 PM EST WED DEC 17 2025  
 
...GALE WARNING REMAINS IN EFFECT FROM 1 AM THURSDAY TO 7 AM EST  
FRIDAY...  
 
* WHAT...SOUTHWEST GALES TO 40 KNOTS AND WAVES 8 TO 12 FEET.  
 
* WHERE...ST JOSEPH TO MANISTEE.  
 
* WHEN...FROM 1 AM THURSDAY TO 7 AM EST FRIDAY.  
 
* 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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