378  
WHUS76 KSEW 161558  
MWWSEW  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SEATTLE WA  
858 AM PDT TUE SEP 16 2025  
 
PZZ130-150-161800-  
/O.CON.KSEW.SC.Y.0125.000000T0000Z-250916T1800Z/  
WEST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA-  
COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND OUT 10 NM-  
858 AM PDT TUE SEP 16 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS  
MORNING...  
 
* WHAT...EAST WINDS 15 TO 25 KT.  
 
* WHERE...WEST ENTRANCE U. S. WATERS STRAIT OF JUAN DE FUCA AND  
COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND OUT 10 NM.  
 
* WHEN...FROM 6 AM TO 11 AM PDT THIS MORNING.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS  
AND/OR SEAS 10 FEET OR HIGHER ARE EXPECTED TO PRODUCE HAZARDOUS  
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS,  
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID  
NAVIGATING IN THESE CONDITIONS.  
 

 
 

 
 
PZZ156-176-162100-  
/O.CON.KSEW.SC.Y.0125.000000T0000Z-250916T2100Z/  
COASTAL WATERS FROM POINT GRENVILLE TO CAPE SHOALWATER OUT 10 NM-  
COASTAL WATERS FROM POINT GRENVILLE TO CAPE SHOALWATER 10 TO  
60 NM-  
858 AM PDT TUE SEP 16 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT THIS  
AFTERNOON...  
 
* WHAT...EAST WINDS 15 TO 25 KT WITH FREQUENT GUSTS TO 30 KT  
POSSIBLE.  
 
* WHERE...COASTAL WATERS FROM POINT GRENVILLE TO CAPE SHOALWATER  
OUT 10 NM AND COASTAL WATERS FROM POINT GRENVILLE TO CAPE  
SHOALWATER 10 TO 60 NM.  
 
* WHEN...FROM 5 AM EARLY THIS MORNING TO 2 PM PDT THIS AFTERNOON.  
 
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 21 TO 33 KNOTS  
AND/OR SEAS 10 FEET OR HIGHER ARE EXPECTED TO PRODUCE HAZARDOUS  
WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED MARINERS,  
ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD AVOID  
NAVIGATING IN THESE CONDITIONS.  
 

 
 

 
 
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT  
HTTP://WEATHER.GOV/SEATTLE  
 
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