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WWUS46 KSEW 181657
WSWSEW
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
857 AM PST THU DEC 18 2025
WAZ301>304-190000-
/O.EXT.KSEW.WW.Y.0024.000000T0000Z-251219T0000Z/
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 STEVENS PASS, MOUNT RAINIER, SR18 AT TIGER MOUNTAIN
SUMMIT, MOUNT BAKER, WHITE PASS, CRYSTAL MOUNTAIN, PARADISE,
GREENWATER, LONGMIRE, ASHFORD, AND SNOQUALMIE PASS
857 AM PST THU DEC 18 2025
...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...
* WHAT...SNOW. ADDITIONAL SNOW ACCUMULATIONS UP TO 4 TO 8 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 4 PM PST THIS AFTERNOON.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT. STRONG WINDS COULD CAUSE
TREE DAMAGE.
* ADDITIONAL DETAILS...SNOW LEVELS WILL INCREASE LATER THIS MORNING
AND AFTERNOON 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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