486
WHUS46 KSEW 171739
CFWSEW
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
939 AM PST WED DEC 17 2025
WAZ330-331-171845-
/O.EXP.KSEW.SU.Y.0008.000000T0000Z-251217T1800Z/
NORTHERN WASHINGTON COAST-GRAYS HARBOR COUNTY COAST-
939 AM PST WED DEC 17 2025
..HIGH SURF ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING
SEAS WILL CONTINUE TO GRADUALLY EASE THROUGHOUT THE DAY TODAY.
WAZ001-180800-
/O.CON.KSEW.CF.Y.0013.251218T0300Z-251218T0900Z/
SAN JUAN COUNTY-
939 AM PST WED DEC 17 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 1 AM PST THURSDAY...
* WHAT...MINOR COASTAL FLOODING EXPECTED. INUNDATION OF AROUND 2
FEET FEET ABOVE GROUND LEVEL IS POSSIBLE ALONG SHORELINES AND
LOW-LYING COASTAL AREAS..
* WHERE...SAN JUAN COUNTY ZONE.
* WHEN...FROM 7 PM THIS EVENING TO 1 AM PST THURSDAY.
* IMPACTS...MINOR COASTAL FLOODING DUE TO TIDAL OVERFLOW IS
EXPECTED AROUND HIGH TIDE. THIS MAY LEAD TO FLOODING OF
PARKING LOTS, PARKS, AND ROADS, WITH ONLY ISOLATED ROAD
CLOSURES EXPECTED.
* ADDITIONAL DETAILS...COASTAL FLOODING WILL OCCUR IN THE HOURS
AROUND THE MORNING HIGH TIDE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF TRAVEL IS REQUIRED, ALLOW EXTRA TIME AS SOME ROADS MAY BE
CLOSED. DO NOT DRIVE AROUND BARRICADES OR THROUGH WATER OF
UNKNOWN DEPTH. TAKE THE NECESSARY ACTIONS TO PROTECT FLOOD-PRONE
PROPERTY.
INUNDATION ABOVE GROUND LEVEL REFERS TO THE HEIGHT ABOVE THE MEAN
HIGHER HIGH WATER (MHHW) LEVEL.
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