346
WWUS46 KSEW 131520
WSWSEW
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
820 AM PDT FRI MAR 13 2026
WAZ301>304-132330-
/O.CON.KSEW.WS.W.0003.000000T0000Z-260314T1200Z/
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 SNOQUALMIE PASS, STEVENS PASS, MOUNT BAKER, WHITE PASS,
ASHFORD, MOUNT RAINIER, GREENWATER, CRYSTAL MOUNTAIN, LONGMIRE,
PARADISE, AND SR18 AT TIGER MOUNTAIN SUMMIT
820 AM PDT FRI MAR 13 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY
* WHAT...HEAVY SNOW. ADDITIONAL SNOW ACCUMULATIONS UP TO 12 INCHES.
* 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 5 AM PDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE ESPECIALLY
THIS AFTERNOON THROUGH FRIDAY EVENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. PREPARE FOR POSSIBLE POWER
OUTAGES.
WAZ328-132330-
/O.CON.KSEW.WS.W.0003.000000T0000Z-260314T1200Z/
OLYMPICS-
INCLUDING HURRICANE RIDGE
820 AM PDT FRI MAR 13 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY
* WHAT...HEAVY SNOW EXPECTED. ADDITIONAL SNOW ACCUMULATIONS BETWEEN
3 TO 5 INCHES.
* WHERE...OLYMPICS.
* WHEN...UNTIL 5 AM PDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SNOW COVERED ROADS MAY MAKE TRAVEL CONDITIONS DIFFICULT TO
IMPOSSIBLE AT TIMES AND CAUSE DELAYS. TEMPORARY ROAD CLOSURES
POSSIBLE. GUSTY WINDS MAY LIMIT VISIBILITY DOWN TO A QUARTER OF A
MILE AT TIMES.
WAZ307-132200-
/O.NEW.KSEW.WW.Y.0009.260313T1520Z-260313T2200Z/
FOOTHILLS AND VALLEYS OF CENTRAL KING COUNTY-
INCLUDING FALL CITY, CARNATION, NORTH BEND, COUGAR MOUNTAIN, AND
MIRRORMONT
820 AM PDT FRI MAR 13 2026
..WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON
* WHAT...WET SNOW. ADDITIONAL SNOW ACCUMULATIONS UP TO ONE TO TWO
INCHES.
* WHERE...FOOTHILLS AND VALLEYS OF CENTRAL KING COUNTY.
* WHEN...UNTIL 3 PM PDT THIS AFTERNOON.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS COULD IMPACT THE FRIDAY MORNING COMMUTE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. PREPARE FOR POSSIBLE
POWER OUTAGES.
WAZ308-132200-
/O.NEW.KSEW.WW.Y.0009.260313T1520Z-260313T2200Z/
FOOTHILLS AND VALLEYS OF PIERCE AND SOUTHERN KING COUNTIES-
INCLUDING ENUMCLAW, MAPLE VALLEY, SOUTH HILL, EATONVILLE, GRAHAM,
AND BONNEY LAKE
820 AM PDT FRI MAR 13 2026
..WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON
* WHAT...WET SNOW. ADDITIONAL SNOW ACCUMULATIONS UP TO ONE TO TWO
INCHES.
* WHERE...FOOTHILLS AND VALLEYS OF PIERCE AND SOUTHERN KING COUNTIES.
* WHEN...UNTIL 3 PM PDT THIS AFTERNOON.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS COULD IMPACT THE FRIDAY MORNING COMMUTE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. PREPARE FOR POSSIBLE
POWER OUTAGES.
HPR
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