184
WWUS46 KSEW 181141
WSWSEW
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
341 AM PST THU DEC 18 2025
WAZ301>304-181800-
/O.CON.KSEW.WW.Y.0024.000000T0000Z-251218T1800Z/
CASCADES OF WHATCOM AND SKAGIT COUNTIES-CASCADES OF SNOHOMISH AND
NORTHERN KING COUNTIES-CASCADES OF SOUTHERN KING COUNTY-CASCADES
OF PIERCE AND LEWIS COUNTIES-
INCLUDING GREENWATER, SNOQUALMIE PASS, MOUNT RAINIER, PARADISE,
STEVENS PASS, MOUNT BAKER, ASHFORD, CRYSTAL MOUNTAIN, WHITE PASS,
LONGMIRE, AND SR18 AT TIGER MOUNTAIN SUMMIT
341 AM PST THU DEC 18 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...
* WHAT...SNOW. ADDITIONAL SNOW ACCUMULATIONS UP TO 5 TO 7 INCHES.
WINDS GUSTING AS HIGH AS 40 MPH.
* WHERE...CASCADES OF SNOHOMISH AND NORTHERN KING COUNTIES, CASCADES
OF WHATCOM AND SKAGIT COUNTIES, CASCADES OF PIERCE AND LEWIS
COUNTIES, AND CASCADES OF SOUTHERN KING COUNTY.
* WHEN...UNTIL 10 AM PST THIS MORNING.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. STRONG WINDS COULD CAUSE
TREE DAMAGE.
* ADDITIONAL DETAILS...SNOW LEVELS WILL INCREASE THIS MORNING TO
AROUND 6000 FEET, WHICH COULD BRING A BRIEF PERIOD OF FREEZING
RAIN. CONFIDENCE IS LOW FOR FREEZING RAIN, BUT THE POTENTIAL
EXISTS FOR LIGHT ACCUMULATIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. PREPARE FOR POSSIBLE
POWER OUTAGES.
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