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Winter Weather Advisory 0027
Issued by the Seattle Forecast Office

Action Issued Starts Expiration
New 2025-12-25 03:32:34 2025-12-26 12:00:00 2025-12-27 00:00:00
Time Extended 2025-12-25 04:16:05 2025-12-26 06:00:00 2025-12-27 00:00:00
Continued 2025-12-25 12:16:17 2025-12-26 06:00:00 2025-12-27 00:00:00
Area Extended 2025-12-25 12:16:17 2025-12-26 06:00:00 2025-12-27 00:00:00
Continued 2025-12-25 19:23:28 2025-12-26 06:00:00 2025-12-27 00:00:00
Continued 2025-12-25 19:23:28 2025-12-26 06:00:00 2025-12-27 00:00:00


Action: New
Issued At: 2025-12-25 03:32:34

095 
WWUS46 KSEW 250932
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
132 AM PST Thu Dec 25 2025

WAZ301>303-251745-
/O.NEW.KSEW.WW.Y.0027.251226T1800Z-251227T0600Z/
Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and
Northern King Counties-Cascades of Southern King County-
Including Mount Baker, Greenwater, Stevens Pass, SR18 at Tiger
Mountain Summit, and Snoqualmie Pass
132 AM PST Thu Dec 25 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TO 10 PM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 6 to 12 
  inches.

* WHERE...Cascades of Snohomish and Northern King Counties, Cascades 
  of Whatcom and Skagit Counties, and Cascades of Southern King 
  County.

* WHEN...From 10 AM to 10 PM PST Friday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Friday evening commute.

* ADDITIONAL DETAILS...Snow levels will be around 2500 ft Friday 
  morning and will decrease below 1000 ft Friday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible 
power outages.

&&

$$

MGF


Action: Time Extended
Issued At: 2025-12-25 04:16:05

412 
WWUS46 KSEW 251015
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
215 AM PST Thu Dec 25 2025

WAZ301>303-251815-
/O.EXT.KSEW.WW.Y.0027.251226T1200Z-251227T0600Z/
Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and
Northern King Counties-Cascades of Southern King County-
Including Mount Baker, Greenwater, Stevens Pass, SR18 at Tiger
Mountain Summit, and Snoqualmie Pass
215 AM PST Thu Dec 25 2025

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 4 AM TO 10 PM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 6 to 12 
  inches.

* WHERE...Cascades of Snohomish and Northern King Counties, Cascades 
  of Whatcom and Skagit Counties, and Cascades of Southern King 
  County.

* WHEN...From 4 AM to 10 PM PST Friday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Friday evening commute.

* ADDITIONAL DETAILS...Snow levels will be around 2500 ft Friday 
  morning and will decrease below 1000 ft Friday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible 
power outages.

&&

$$

MGF


Action: Continued
Issued At: 2025-12-25 12:16:17

051 
WWUS46 KSEW 251815
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
1015 AM PST Thu Dec 25 2025

WAZ304-260215-
/O.EXA.KSEW.WW.Y.0027.251226T1200Z-251227T0600Z/
Cascades of Pierce and Lewis Counties-
Including Ashford, White Pass, Crystal Mountain, Longmire, Mount
Rainier, and Paradise
1015 AM PST Thu Dec 25 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 10 PM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 6 to 12 
  inches.

* WHERE...Cascades of Pierce and Lewis Counties.

* WHEN...From 4 AM to 10 PM PST Friday.

* IMPACTS...Travel could be very difficult. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible 
power outages.

&&

$$

WAZ301>303-260215-
/O.CON.KSEW.WW.Y.0027.251226T1200Z-251227T0600Z/
Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and
Northern King Counties-Cascades of Southern King County-
Including Snoqualmie Pass, Stevens Pass, SR18 at Tiger Mountain
Summit, Mount Baker, and Greenwater
1015 AM PST Thu Dec 25 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 6 to 12 
  inches.

* WHERE...Cascades of Snohomish and Northern King Counties, Cascades 
  of Whatcom and Skagit Counties, and Cascades of Southern King 
  County.

* WHEN...From 4 AM to 10 PM PST Friday.

* IMPACTS...Travel could be very difficult to impossible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible 
power outages.

&&

$$

12


Action: Area Extended
Issued At: 2025-12-25 12:16:17

051 
WWUS46 KSEW 251815
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
1015 AM PST Thu Dec 25 2025

WAZ304-260215-
/O.EXA.KSEW.WW.Y.0027.251226T1200Z-251227T0600Z/
Cascades of Pierce and Lewis Counties-
Including Ashford, White Pass, Crystal Mountain, Longmire, Mount
Rainier, and Paradise
1015 AM PST Thu Dec 25 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 10 PM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 6 to 12 
  inches.

* WHERE...Cascades of Pierce and Lewis Counties.

* WHEN...From 4 AM to 10 PM PST Friday.

* IMPACTS...Travel could be very difficult. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible 
power outages.

&&

$$

WAZ301>303-260215-
/O.CON.KSEW.WW.Y.0027.251226T1200Z-251227T0600Z/
Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and
Northern King Counties-Cascades of Southern King County-
Including Snoqualmie Pass, Stevens Pass, SR18 at Tiger Mountain
Summit, Mount Baker, and Greenwater
1015 AM PST Thu Dec 25 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 6 to 12 
  inches.

* WHERE...Cascades of Snohomish and Northern King Counties, Cascades 
  of Whatcom and Skagit Counties, and Cascades of Southern King 
  County.

* WHEN...From 4 AM to 10 PM PST Friday.

* IMPACTS...Travel could be very difficult to impossible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible 
power outages.

&&

$$

12


Action: Continued
Issued At: 2025-12-25 19:23:28

204 
WWUS46 KSEW 260123
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
523 PM PST Thu Dec 25 2025

WAZ301>303-261400-
/O.CON.KSEW.WW.Y.0027.251226T1200Z-251227T0600Z/
Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and
Northern King Counties-Cascades of Southern King County-
Including Snoqualmie Pass, SR18 at Tiger Mountain Summit,
Greenwater, Mount Baker, and Stevens Pass
523 PM PST Thu Dec 25 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 6 to 12 
  inches.

* WHERE...Cascades of Snohomish and Northern King Counties, Cascades 
  of Whatcom and Skagit Counties, and Cascades of Southern King 
  County.

* WHEN...From 4 AM to 10 PM PST Friday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Friday morning and evening 
  commutes.

* ADDITIONAL DETAILS...Snow levels will be around 2500 ft Friday 
  morning and will lower below 1000 ft Friday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible 
power outages.

&&

$$

WAZ304-261400-
/O.CON.KSEW.WW.Y.0027.251226T1200Z-251227T0600Z/
Cascades of Pierce and Lewis Counties-
Including Ashford, Mount Rainier, Longmire, White Pass, Paradise,
and Crystal Mountain
523 PM PST Thu Dec 25 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 6 to 12 
  inches.

* WHERE...Cascades of Pierce and Lewis Counties.

* WHEN...From 4 AM to 10 PM PST Friday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Friday morning and evening 
  commutes. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Snow levels will be around 2500 ft Friday 
  morning and will lower below 1000 ft Friday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible 
power outages.

&&

$$

15


Action: Continued
Issued At: 2025-12-25 19:23:28

204 
WWUS46 KSEW 260123
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
523 PM PST Thu Dec 25 2025

WAZ301>303-261400-
/O.CON.KSEW.WW.Y.0027.251226T1200Z-251227T0600Z/
Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and
Northern King Counties-Cascades of Southern King County-
Including Snoqualmie Pass, SR18 at Tiger Mountain Summit,
Greenwater, Mount Baker, and Stevens Pass
523 PM PST Thu Dec 25 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 6 to 12 
  inches.

* WHERE...Cascades of Snohomish and Northern King Counties, Cascades 
  of Whatcom and Skagit Counties, and Cascades of Southern King 
  County.

* WHEN...From 4 AM to 10 PM PST Friday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Friday morning and evening 
  commutes.

* ADDITIONAL DETAILS...Snow levels will be around 2500 ft Friday 
  morning and will lower below 1000 ft Friday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible 
power outages.

&&

$$

WAZ304-261400-
/O.CON.KSEW.WW.Y.0027.251226T1200Z-251227T0600Z/
Cascades of Pierce and Lewis Counties-
Including Ashford, Mount Rainier, Longmire, White Pass, Paradise,
and Crystal Mountain
523 PM PST Thu Dec 25 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 6 to 12 
  inches.

* WHERE...Cascades of Pierce and Lewis Counties.

* WHEN...From 4 AM to 10 PM PST Friday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Friday morning and evening 
  commutes. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Snow levels will be around 2500 ft Friday 
  morning and will lower below 1000 ft Friday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible 
power outages.

&&

$$

15



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