259
WWUS46 KPDT 302036
WSWPDT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pendleton OR
1236 PM PST Thu Jan 30 2025

...SNOW AND AREAS OF FREEZING RAIN TONIGHT THROUGH SATURDAY...

.A significant change in the weather pattern begins tonight as
winter storm system arrives from the Pacific and brings moderate to
heavy snow to the Cascades and Blue Mountains. There will be rain
and areas of light freezing rain across the Columbia Basin and the
Kittitas and Yakima Valleys.

WAZ522-311200-
/O.UPG.KPDT.WS.A.0001.250131T0600Z-250202T0000Z/
/O.NEW.KPDT.WS.W.0001.250131T0600Z-250202T0000Z/
Upper Slopes of the Eastern Washington Cascades Crest-
Including the cities of Easton and Roslyn
1236 PM PST Thu Jan 30 2025

...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 4 PM
PST SATURDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected above 3000 feet. Total snow
  accumulations between 8 and 18 inches. Winds gusting as high as 50
  mph along exposed ridgetops.

* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.

* WHEN...From 10 PM this evening to 4 PM PST Saturday.

* IMPACTS...Heavy snowfall and very low visibility will create
  extremely dangerous driving conditions. Gusty winds could bring
  down tree branches.

* ADDITIONAL DETAILS...Precipitation will begin as snow for
  Snoqualmie Pass, before   transitioning to rain Friday afternoon.
  Rain will then transition
  to snow again at Snoqualmie Pass Friday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons should consider delaying all travel. If travel is absolutely
necessary, drive with extreme caution. Consider taking a winter
storm kit along with you, including such items as tire chains,
booster cables, flashlight, shovel, blankets and extra clothing.
Also take water, a first aid kit, and anything else that would help
you survive in case you become stranded.

&&

$$

ORZ509-311200-
/O.UPG.KPDT.WS.A.0001.250131T0600Z-250202T0000Z/
/O.NEW.KPDT.WW.Y.0004.250131T0600Z-250202T0000Z/
East Slopes of the Oregon Cascades-
Including the cities of La Pine, Sisters, Camp Sherman, and
Sunriver
1236 PM PST Thu Jan 30 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 4 PM
PST SATURDAY...

* WHAT...Snow expected. Total snow accumulations between 5 and 10
  inches with higher accumulations near the crest. Winds gusting as
  high as 50 mph along exposed ridgetops.

* WHERE...East Slopes of the Oregon Cascades.

* WHEN...From 10 PM this evening to 4 PM PST Saturday.

* IMPACTS...Significant snowfall with periods of heavy snowfall
  rates will combine with low visibility to create very difficult
  driving conditions. Strong winds could cause extensive damage to
  trees and power lines.

* ADDITIONAL DETAILS...Snow levels will rise from around 4000 feet
  Thursday night to around 5000 feet Friday afternoon. Snow levels
  will then lower to around 3000 feet and lower Friday night onward.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road
conditions can be obtained by visiting tripcheck.com online, or by
calling 5 1 1.

&&

$$

ORZ502-WAZ030-311200-
/O.UPG.KPDT.WS.A.0001.250131T1200Z-250202T0000Z/
/O.NEW.KPDT.WW.Y.0004.250131T1200Z-250202T0000Z/
Northern Blue Mountains of Oregon-Northwest Blue Mountains-
Including the cities of Tollgate, Meacham, and Ski Bluewood
Resort
1236 PM PST Thu Jan 30 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM FRIDAY TO 4 PM PST
SATURDAY ABOVE 4000 FEET...

* WHAT...Snow expected above 4000 feet. Total snow accumulations
  between 6 and 12 inches. Local winds gusting as high as 35 mph
  will cause blowing and drifting of snow.

* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
  Washington, Northwest Blue Mountains.

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

* IMPACTS...Significant snowfall with periods of heavy snowfall
  rates will combine with low visibility to create very difficult
  driving conditions. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Total snowfall accumulations for I-84 along
  the Blue Mountains, including Meacham, are only expected to be
  around 3 to 5 inches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. In Oregon, the latest
road conditions can be obtained by visiting tripcheck.com online, or
by calling 5 1 1. In Washington, the latest road conditions can be
obtained by visiting the website wsdot.wa.gov/travel.

&&

$$

ORZ044-WAZ026>028-311200-
/O.NEW.KPDT.WW.Y.0004.250131T0600Z-250131T1800Z/
Lower Columbia Basin of Oregon-Kittitas Valley-Yakima Valley-
Lower Columbia Basin of Washington-
Including the cities of Thorp, Prosser, Hermiston, Toppenish,
Naches, Ellensburg, Connell, Tri-Cities, Yakima, Boardman,
Sunnyside, and Ione
1236 PM PST Thu Jan 30 2025

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

* WHAT...Mixed precipitation expected. Light freezing rain will
  create ice accumulations of a glaze to one tenth of an inch.
  Little to no snow accumulation.

* WHERE...Lower Columbia Basin of Oregon and Washington, Kittitas
  Valley, and Yakima Valley.

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

* IMPACTS...The hazardous conditions could impact the Friday morning
  commute.

* ADDITIONAL DETAILS...Although the air temperature will be in the
  lower 30s for most areas, the road temperatures will be below
  freezing that will create light ice accumulations.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. In Oregon, the latest
road conditions can be obtained by visiting tripcheck.com online, or
by calling 5 1 1. In Washington, the latest road conditions can be
obtained by visiting the website wsdot.wa.gov/travel.

&&

$$

MW