313
WWUS46 KSEW 112118
WSWSEW
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
218 PM PDT WED MAR 11 2026
WAZ301-302-120700-
/O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/
/O.CON.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/
/O.CON.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/
CASCADES OF WHATCOM AND SKAGIT COUNTIES-CASCADES OF SNOHOMISH AND
NORTHERN KING COUNTIES-
INCLUDING SILVERTON, MOUNT BAKER, AND STEVENS PASS
218 PM PDT WED MAR 11 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT THIS
EVENING...
...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 AM
PDT THURSDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM THURSDAY TO 5 AM
PDT SATURDAY...
* WHAT...FOR THE WINTER WEATHER ADVISORY, SNOW. ADDITIONAL SNOW
ACCUMULATIONS UP OF 4 TO 6 INCHES. FOR THE BLIZZARD WARNING,
BLIZZARD CONDITIONS EXPECTED. TOTAL SNOW ACCUMULATIONS 5 TO 10
INCHES. WINDS GUSTING AS HIGH AS 55 MPH. FOR THE WINTER STORM
WARNING, HEAVY SNOW. TOTAL SNOW ACCUMULATIONS BETWEEN 1 AND 3 FEET
POSSIBLE. WINDS COULD GUST AS HIGH AS 40 MPH.
* WHERE...CASCADES OF SNOHOMISH AND NORTHERN KING COUNTIES AND
CASCADES OF WHATCOM AND SKAGIT COUNTIES.
* WHEN...FOR THE WINTER WEATHER ADVISORY, UNTIL 6 PM PDT THIS
EVENING. FOR THE BLIZZARD WARNING, FROM 6 PM THIS EVENING TO 5 AM
PDT THURSDAY. FOR THE WINTER STORM WARNING, FROM 5 AM THURSDAY TO
5 AM PDT SATURDAY.
* IMPACTS...VISIBILITIES MAY DROP BELOW 1/4 MILE DUE TO FALLING AND
BLOWING SNOW. TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE. STRONG
WINDS COULD CAUSE TREE DAMAGE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TRAVEL SHOULD BE RESTRICTED TO EMERGENCIES ONLY. IF YOU MUST TRAVEL,
HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED, STAY WITH
YOUR VEHICLE. PREPARE FOR POSSIBLE POWER OUTAGES.
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. PREPARE FOR POSSIBLE POWER
OUTAGES.
SLOW DOWN AND USE CAUTION WHILE TRAVELING. PREPARE FOR POSSIBLE
POWER OUTAGES.
WAZ303-304-120700-
/O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/
/O.CON.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/
/O.CON.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/
CASCADES OF SOUTHERN KING COUNTY-CASCADES OF PIERCE AND LEWIS
COUNTIES-
INCLUDING ASHFORD, LONGMIRE, MOUNT RAINIER, PARADISE, SR18 AT
TIGER MOUNTAIN SUMMIT, GREENWATER, SNOQUALMIE PASS, WHITE PASS,
AND CRYSTAL MOUNTAIN
218 PM PDT WED MAR 11 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT THIS
EVENING...
...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 AM
PDT THURSDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM THURSDAY TO 5 AM
PDT SATURDAY...
* WHAT...FOR THE WINTER WEATHER ADVISORY, SNOW. ADDITIONAL SNOW
ACCUMULATIONS OF 8 TO 12 INCHES. FOR THE BLIZZARD WARNING,
BLIZZARD CONDITIONS EXPECTED. TOTAL SNOW ACCUMULATIONS UP TO 8
INCHES. WINDS GUSTING AS HIGH AS 55 MPH. FOR THE WINTER STORM
WARNING, HEAVY SNOW. TOTAL SNOW ACCUMULATIONS BETWEEN 1 AND 3 FEET.
* WHERE...CASCADES OF PIERCE AND LEWIS COUNTIES AND CASCADES OF
SOUTHERN KING COUNTY.
* WHEN...FOR THE WINTER WEATHER ADVISORY, UNTIL 6 PM PDT THIS
EVENING. FOR THE BLIZZARD WARNING, FROM 6 PM THIS EVENING TO 5 AM
PDT THURSDAY. FOR THE WINTER STORM WARNING, FROM 5 AM THURSDAY TO
5 AM PDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE. GUSTY
WINDS COULD BRING DOWN TREE BRANCHES AND GREATLY REDUCE
VISIBILITIES.
* ADDITIONAL DETAILS...LOWER ELEVATIONS UP TO AND INCLUDING
SNOQUALMIE PASS MAY TRANSITION OVER TO RAIN LATE THIS EVENING AS
SNOW LEVELS BRIEFLY RISE BEFORE LOWERING AGAIN THURSDAY. THE
STRONGEST WINDS WILL PEAK THIS EVENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TRAVEL SHOULD BE RESTRICTED TO EMERGENCIES ONLY. IF YOU MUST TRAVEL,
HAVE A WINTER SURVIVAL KIT WITH YOU. IF YOU GET STRANDED, STAY WITH
YOUR VEHICLE. PREPARE FOR POSSIBLE POWER OUTAGES.
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. PREPARE FOR POSSIBLE POWER
OUTAGES.
SLOW DOWN AND USE CAUTION WHILE TRAVELING. PREPARE FOR POSSIBLE
POWER OUTAGES.
WAZ328-120700-
/O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/
/O.CON.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/
OLYMPICS-
INCLUDING HURRICANE RIDGE AND MOUNT OLYMPUS
218 PM PDT WED MAR 11 2026
...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 AM
PDT THURSDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM THURSDAY TO 5 AM
PDT SATURDAY...
* WHAT...FOR THE BLIZZARD WARNING, BLIZZARD CONDITIONS EXPECTED.
TOTAL SNOW ACCUMULATIONS UP TO 4 INCHES. WINDS GUSTING AS HIGH AS
60 MPH. FOR THE WINTER STORM WARNING, HEAVY SNOW EXPECTED. TOTAL
SNOW ACCUMULATIONS BETWEEN 1 AND 3 FEET. WINDS GUSTING AS HIGH AS
40 MPH.
* WHERE...OLYMPICS.
* WHEN...FOR THE BLIZZARD WARNING, FROM 6 PM THIS EVENING TO 5 AM
PDT THURSDAY. FOR THE WINTER STORM WARNING, FROM 5 AM THURSDAY TO
5 AM PDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE. GUSTY
WINDS COULD BRING DOWN TREE BRANCHES AND REDUCE VISIBILITIES.
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.
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