878  
WHUS73 KGRR 210203  
MWWGRR  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
1003 PM EDT MON OCT 20 2025  
 
LMZ844>849-211015-  
/O.CON.KGRR.SC.Y.0087.000000T0000Z-251021T1200Z/  
/O.CON.KGRR.GL.W.0020.251021T1200Z-251023T0600Z/  
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-  
1003 PM EDT MON OCT 20 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT  
TUESDAY...  
...GALE WARNING REMAINS IN EFFECT FROM 8 AM TUESDAY TO 2 AM EDT  
THURSDAY...  
 
* WHAT...FOR THE SMALL CRAFT ADVISORY, SOUTHWEST WINDS 15 TO 25  
KNOTS WITH GUSTS UP TO 30 KNOTS AND WAVES 7 TO 10 FEET. FOR THE  
GALE WARNING, WEST WINDS 25 TO 35 KNOTS WITH GUSTS UP TO 45  
KNOTS AND WAVES 7 TO 12 FEET EXPECTED.  
 
* WHERE...ST JOSEPH TO MANISTEE.  
 
* WHEN...FOR THE SMALL CRAFT ADVISORY, UNTIL 8 AM EDT TUESDAY.  
FOR THE GALE WARNING, FROM 8 AM TUESDAY TO 2 AM EDT THURSDAY.  
 
* 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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