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Mountain Weather Forecast

Issued: 2:59 PM PST Friday, February 9, 2018
by Kenny Kramer

Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather

Weather Synopsis for Friday & Saturday

Low level moisture, combined with a very weak passing small scale disturbance is maintaining a few showers into the afternoon Friday, mainly over the Mt Baker, Mt Rainier and the central Cascade passes.  Showers should end by the evening with gradual clearing as the flow aloft becomes increasingly northerly.

A strong upper ridge of high pressure remains offshore and will keep the Pacific Northwest cool with low freezing levels through Saturday and beyond.

The ridge nudges closer to the coast and builds a little further northward Saturday allowing for clearing skies Friday night and plenty of sunshine for Saturday.

The next disturbance to affect the area is slated for Sunday and this weak system will spread increasing clouds across the area late Saturday and Saturday night.

Weather Forecast

Olympics
Friday Afternoon Mostly sunny.
Friday Night Mostly clear. Cool.
Saturday Mostly sunny and cool. Increasing high clouds in the afternoon.
Becoming mostly cloudy.
Washington Cascades near and west of the Crest including Stevens, Snoqualmie and White Passes
Friday Afternoon Mostly cloudy with scattered light snow showers through evening, mainly in the passes and volcanic peaks.
Friday Night Mostly clear. Cool.
Saturday Mostly sunny and cool. Increasing high clouds in the late afternoon.
Becoming mostly cloudy.
East Slopes of the Washington Cascades
Friday Afternoon Partly cloudy and cool.
Friday Night Mostly clear and cool.
Saturday Mostly sunny. Cool.
Increasing high clouds becoming mostly cloudy.
Mt. Hood
Friday Afternoon Partly to mostly cloudy.
Friday Night Clear and cool.
Saturday Mostly sunny. Increasing high clouds in the afternoon.
Increasing clouds becoming mostly cloudy.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Friday Afternoon Snow Level 1500' 1000' 1000' None' None' 2000' None' 2500'
Friday Night Freezing Level 1500' 1000' 1000' None' None' 1500' None' 2500'
Saturday Morning Freezing Level 2000' 2000' 3000' None' None' 3500' None' 4000'
Saturday Afternoon Freezing Level 3500' 3000' 3000' None' None' 3500' None' 5500'
Hurricane Ridge Elevation
Friday Afternoon Snow Level
1500'
Friday Night Freezing Level
1500'
Saturday Morning Freezing Level
2000'
Saturday Afternoon Freezing Level
3500'
Saturday Night Freezing Level
3000'
Mt. Baker Elevation
Friday Afternoon Snow Level
1000'
Friday Night Freezing Level
1000'
Saturday Morning Freezing Level
2000'
Saturday Afternoon Freezing Level
3000'
Saturday Night Freezing Level
1500'
Washington Pass Elevation
Friday Afternoon Snow Level
1000'
Friday Night Freezing Level
1000'
Saturday Morning Freezing Level
3000'
Saturday Afternoon Freezing Level
3000'
Saturday Night Freezing Level
2000'
Leavenworth Elevation
Friday Afternoon Snow Level
None'
Friday Night Freezing Level
None'
Saturday Morning Freezing Level
None'
Saturday Afternoon Freezing Level
None'
Saturday Night Freezing Level
None'
Stevens Pass Elevation
Friday Afternoon Snow Level
None'
Friday Night Freezing Level
None'
Saturday Morning Freezing Level
None'
Saturday Afternoon Freezing Level
None'
Saturday Night Freezing Level
None'
Snoqualmie Pass Elevation
Friday Afternoon Snow Level
2000'
Friday Night Freezing Level
1500'
Saturday Morning Freezing Level
3500'
Saturday Afternoon Freezing Level
3500'
Saturday Night Freezing Level
2500'
Mt. Rainier & Crystal Elevation
Friday Afternoon Snow Level
None'
Friday Night Freezing Level
None'
Saturday Morning Freezing Level
None'
Saturday Afternoon Freezing Level
None'
Saturday Night Freezing Level
None'
Mt. Hood Elevation
Friday Afternoon Snow Level
2500'
Friday Night Freezing Level
2500'
Saturday Morning Freezing Level
4000'
Saturday Afternoon Freezing Level
5500'
Saturday Night Freezing Level
6000'

* Easterly flow in the Cascade Passes can cause locally lower Snow or Freezing levels than areas further west.
Freezing Level is when no precipitation is forecast.

Precipitation Forecast

Saturday Sunday
Hurricane Ridge 0 0
Mt Baker Ski Area LT 0.10 0
Washington Pass 0 0
Stevens Pass LT 0.10 0
Snoqualmie Pass LT 0.10 0
Mission Ridge 0 0
Crystal Mt 0 0
Paradise LT 0.10 0
White Pass 0 0
Mt Hood Meadows 0 0
0 0
Hurricane Ridge Precipitation Forecast
Saturday 0
Sunday 0
Mt Baker Ski Area Precipitation Forecast
Saturday LT 0.10
Sunday 0
Washington Pass Precipitation Forecast
Saturday 0
Sunday 0
Stevens Pass Precipitation Forecast
Saturday LT 0.10
Sunday 0
Snoqualmie Pass Precipitation Forecast
Saturday LT 0.10
Sunday 0
Mission Ridge Precipitation Forecast
Saturday 0
Sunday 0
Crystal Mt Precipitation Forecast
Saturday 0
Sunday 0
Paradise Precipitation Forecast
Saturday LT 0.10
Sunday 0
White Pass Precipitation Forecast
Saturday 0
Sunday 0
Mt Hood Meadows Precipitation Forecast
Saturday 0
Sunday 0
Timberline Precipitation Forecast
Saturday 0
Sunday 0

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Friday Afternoon NW 5 - 10 NNE 5 - 10 NW 5 - 15 --- None - None NW 5 - 15
Friday Night NE 10 - 20 NE 10 - 20 NE 5 - 10 --- None - None NNW 5 - 15
Saturday Morning NE 5 - 15 NE 5 - 10 NE 5 - 10 --- None - None ENE 5 - 15
Saturday Afternoon WSW 5 - 10 SW 5 - 10 W 5 - 10 --- None - None SE 5 - 10
Hurricane Ridge Elevation
Friday Afternoon NW 5 - 10
Friday Night NE 10 - 20
Saturday Morning NE 5 - 15
Saturday Afternoon WSW 5 - 10
Saturday Night W 10 - 20
Mt. Baker Elevation
Friday Afternoon NNE 5 - 10
Friday Night NE 10 - 20
Saturday Morning NE 5 - 10
Saturday Afternoon SW 5 - 10
Saturday Night W 5 - 15
Stevens and Snoqualmie Pass Elevation
Friday Afternoon NW 5 - 15
Friday Night NE 5 - 10
Saturday Morning NE 5 - 10
Saturday Afternoon W 5 - 10
Saturday Night W 10 - 20
Mt. Rainier Elevation
Friday Afternoon --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Saturday Night --- None - None
Mt. Hood Elevation
Friday Afternoon NW 5 - 15
Friday Night NNW 5 - 15
Saturday Morning ENE 5 - 15
Saturday Afternoon SE 5 - 10
Saturday Night W 5 - 15
Hurricane Ridge Direction - Speed
Friday Afternoon NW 5 - 10
Friday Night NE 10 - 20
Saturday Morning NE 5 - 15
Saturday Afternoon WSW 5 - 10
Saturday Night W 10 - 20
Mt. Baker Direction - Speed
Friday Afternoon NNE 5 - 10
Friday Night NE 10 - 20
Saturday Morning NE 5 - 10
Saturday Afternoon SW 5 - 10
Saturday Night W 5 - 15
Stevens and Snoqualmie Pass Direction - Speed
Friday Afternoon NW 5 - 15
Friday Night NE 5 - 10
Saturday Morning NE 5 - 10
Saturday Afternoon W 5 - 10
Saturday Night W 10 - 20
Mt. Rainier Direction - Speed
Friday Afternoon --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Saturday Night --- None - None
Mt. Hood Direction - Speed
Friday Afternoon NW 5 - 15
Friday Night NNW 5 - 15
Saturday Morning ENE 5 - 15
Saturday Afternoon SE 5 - 10
Saturday Night W 5 - 15

Directions above indicate the direction the wind blows from on the 16-point cardinal scale. These winds indicate "free" winds, or those winds in the atmosphere not influenced by terrain. Topographical effects may produce greater or lower wind speeds in certain locations as well as significant variations in direction.

Free Winds at 9000' (mph)

Mt. Baker Washington Pass Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Friday Afternoon NNW 10 - 20 NNW 15 - 25 NW 25 - 35 --- None - None NW 30 - 40
Friday Night NNE 10 - 20 NNE 15 - 25 NNW 15 - 25 --- None - None NNW 20 - 30
Saturday Morning N 15 - 25 N 15 - 25 N 15 - 25 --- None - None NNE 20 - 30
Saturday Afternoon NW 20 - 30 NW 20 - 30 NW 15 - 25 --- None - None N 10 - 20
Mt. Baker Direction - Speed
Friday Afternoon NNW 10 - 20
Friday Night NNE 10 - 20
Saturday Morning N 15 - 25
Saturday Afternoon NW 20 - 30
Saturday Night W 25 - 35
Washington Pass Direction - Speed
Friday Afternoon NNW 15 - 25
Friday Night NNE 15 - 25
Saturday Morning N 15 - 25
Saturday Afternoon NW 20 - 30
Saturday Night W 25 - 35
Stevens and Snoqualmie Pass Direction - Speed
Friday Afternoon NW 25 - 35
Friday Night NNW 15 - 25
Saturday Morning N 15 - 25
Saturday Afternoon NW 15 - 25
Saturday Night W 25 - 35
Mt. Rainier Direction - Speed
Friday Afternoon --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Saturday Night --- None - None
Mt. Hood Direction - Speed
Friday Afternoon NW 30 - 40
Friday Night NNW 20 - 30
Saturday Morning NNE 20 - 30
Saturday Afternoon N 10 - 20
Saturday Night W 25 - 35

Extended Weather Synopsis for Sunday night through Tuesday

A weak disturbance is forecast to move through the upper ridge position offshore and form a low pressure circulation off Vancouver Island by early Sunday morning, then turn sharply southward moving to the Oregon coast later Sunday. This system should provide a little snowfall over most areas, but the water amounts look to be light, with general snowfall of 1-4 inches expected and the greater amounts over the Mt Hood area. 

The disturbance moves south of the area Sunday night with showers ending most areas, but lingering over the Mt Hood area.

The ridge offshore should rebound Monday to bring a cool and drier NNE flow. Gradual clearing is expected from the north Monday with showers ending early Monday in the Mt Hood area.

Tuesday looks to be another dry cool day under the influence of the offshore upper ridge remaining in place. 

Extended Weather

Olympics, Washington Cascades and Mt. Hood Area
Sunday Cloudy with periods of light snow beginning in the north part early Sunday and tracking southward through the day. Light to briefly moderate snow, Mt Rainier and Mt Hood. Snow showers ending Sunday night, except for light snow showers persisting in the Mt Hood area.
Monday Becoming partly cloudy with increasing sunshine. Fair and cool Monday night.

Extended Snow/Freezing Levels

Mt. Baker Snoqualmie Pass Mt. Hood Easterly Flow *
Sunday Snow Level 500' - 1500' 1000' - 2500' 2000' - 3500'
Sunday Night Snow Level 500' - 1500' 1000' - 2500' 2000' - 3500'
Monday Freezing Level 1500' - 3000' 2500' - 4000' 3000' - 4500'
Monday Night Freezing Level 2000' - 3500' 2500' - 4000' 2500' - 4000'
Mt. Baker Elevation
Sunday Snow Level
500' - 1500'
Sunday Night Snow Level
500' - 1500'
Monday Freezing Level
1500' - 3000'
Monday Night Freezing Level
2000' - 3500'
Tuesday Freezing Level
2000' - 3500'
Snoqualmie Pass Elevation
Sunday Snow Level
1000' - 2500'
Sunday Night Snow Level
1000' - 2500'
Monday Freezing Level
2500' - 4000'
Monday Night Freezing Level
2500' - 4000'
Tuesday Freezing Level
3000' - 5000'
Mt. Hood Elevation
Sunday Snow Level
2000' - 3500'
Sunday Night Snow Level
2000' - 3500'
Monday Freezing Level
3000' - 4500'
Monday Night Freezing Level
2500' - 4000'
Tuesday Freezing Level
5000' - 7000'

* Easterly flow in the Cascade Passes can cause locally lower Snow or Freezing levels than areas further west.
Freezing Level is when no precipitation is forecast.

Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather

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