842
WWUS46 KSEW 110923
WSWSEW
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
223 AM PDT WED MAR 11 2026
WAZ301-302-112200-
/O.UPG.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/
/O.NEW.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/
/O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/
/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
223 AM 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 IN EFFECT FROM 5 AM THURSDAY TO 5 AM PDT
SATURDAY...
* WHAT...FOR THE WINTER WEATHER ADVISORY, SNOW. ADDITIONAL SNOW
ACCUMULATIONS BETWEEN 6 AND 12 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...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. PREPARE FOR POSSIBLE POWER
OUTAGES.
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.
SLOW DOWN AND USE CAUTION WHILE TRAVELING. PREPARE FOR POSSIBLE
POWER OUTAGES.
WAZ303-304-112200-
/O.UPG.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/
/O.NEW.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/
/O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/
/O.CON.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/
CASCADES OF SOUTHERN KING COUNTY-CASCADES OF PIERCE AND LEWIS
COUNTIES-
INCLUDING ASHFORD, SR18 AT TIGER MOUNTAIN SUMMIT, SNOQUALMIE
PASS, MOUNT RAINIER, CRYSTAL MOUNTAIN, GREENWATER, WHITE PASS,
LONGMIRE, AND PARADISE
223 AM 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 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. VERY
STRONG WINDS COULD CAUSE EXTENSIVE TREE DAMAGE. VISIBILITIES MAY
DROP BELOW 1/4 MILE DUE TO FALLING AND BLOWING SNOW.
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.
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.
SLOW DOWN AND USE CAUTION WHILE TRAVELING. PREPARE FOR POSSIBLE
POWER OUTAGES.
WAZ328-112200-
/O.UPG.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/
/O.NEW.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/
/O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/
OLYMPICS-
INCLUDING HURRICANE RIDGE AND MOUNT OLYMPUS
223 AM PDT WED MAR 11 2026
...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 AM
PDT THURSDAY...
...WINTER STORM WARNING 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. VERY
STRONG WINDS COULD CAUSE EXTENSIVE TREE DAMAGE. VISIBILITIES MAY
DROP BELOW 1/4 MILE DUE TO FALLING AND BLOWING SNOW.
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.
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.
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