667
WHUS46 KSEW 180337
CFWSEW
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
737 PM PST WED DEC 17 2025
WAZ001-181200-
/O.CAN.KSEW.CF.Y.0013.000000T0000Z-251218T0900Z/
/O.NEW.KSEW.CF.Y.0014.251218T1200Z-251218T1600Z/
SAN JUAN COUNTY-
737 PM PST WED DEC 17 2025
...COASTAL FLOOD ADVISORY IN EFFECT FROM 4 AM TO 8 AM PST
THURSDAY...
..COASTAL FLOOD ADVISORY IS CANCELLED
* WHAT...MINOR COASTAL FLOODING EXPECTED. INUNDATION OF AROUND 1.5
TO 2 FEET ABOVE GROUND LEVEL IS POSSIBLE ALONG SHORELINES AND
LOW-LYING COASTAL AREAS.
* WHERE...SAN JUAN COUNTY ZONE.
* WHEN...FROM 4 AM TO 8 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. THE PREVIOUS COASTAL FLOOD
ADVISORY THIS EVENING IS CANCELLED, AND REISSUED FROM 4 AM TO 8
AM.
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.
WAZ325-181200-
/O.NEW.KSEW.CF.Y.0015.251218T1700Z-251218T2100Z/
EASTERN STRAIT OF JUAN DE FUCA-
737 PM PST WED DEC 17 2025
...COASTAL FLOOD ADVISORY IN EFFECT FROM 9 AM TO 1 PM PST
THURSDAY...
* WHAT...MINOR COASTAL FLOODING EXPECTED. INUNDATION OF AROUND 1.5
TO 2 FEET ABOVE GROUND LEVEL IS POSSIBLE ALONG SHORELINES AND
LOW-LYING COASTAL AREAS.
* WHERE...EASTERN STRAIT OF JUAN DE FUCA ZONE.
* WHEN...FROM 9 AM TO 1 PM 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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page