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Mountain Weather Forecast

Issued: 2:16 PM PST Friday, March 15, 2024
by Dallas Glass

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

Weather Synopsis for Friday night through Sunday

If you like warm sunny weather, you're in luck. Several weather stations this afternoon have already reached well mid-40s and even 50s. A high-pressure ridge parked off the coast will dominate our weather for the next several days. Expect generally clear skies, lots of sunshine, and temperatures well above freezing.

Friday night clear skies will allow for some cooling, particularly in the mountain valleys and passes. This could result in temperature inversions that feel quite chilly. Make no mistake, it's still warm higher up the mountain. With the main ridge axis offshore, easterly winds from about I-90 southward to Mt Hood will keep these areas slightly cooler than locations further north.

Even if it feels a bit cold at the trailhead first thing in the morning, it will heat up quickly. Temperatures will once again push into the 50s, with a few weather stations possibly tipping the 60F mark. Winds should gradually decrease across the region as the ridge moves overhead, allowing you to feel the full brunt of the heat. 

With the high-pressure ridge camped out over the PNW, Saturday night and Sunday will feel like a rinse and repeat. Clear skies will allow lower elevation temperatures to dip while middle and upper elevations remain quite warm. Once the sun comes up, temperatures once again quickly rise. Freezing levels appear stuck between 10000 and 11000 feet, with most areas remaining well above freezing for the next several days. 

Weather Forecast

Olympics
Friday Night Clear and warm.
Sunny and warm.
West North
Friday Night Clear and warm. Temperatures inversions developing in the mountain valleys.
Sunny and warm.
West Central
Friday Night Clear and warm. Temperature inversions developing in the mountain valleys and passes.
Sunny and warm. Light to moderate E winds decreasing.
West South
Friday Night Clear and warm. Temperature inversions developing in the mountain valleys and passes. Moderate W winds.
Sunny and warm. Light to moderate SE winds decreasing.
Stevens Pass
Friday Night Clear and warm.Temperature inversions developing. Light to moderate E winds.
Sunny and warm. Light to moderate E winds decreasing.
Snoqualmie Pass
Friday Night Clear and warm. Temperature inversions developing. E winds increasing and becoming moderate.
Sunny and warm. Moderate E winds decreasing slightly in the afternoon.
East North
Friday Night Clear and warm. Temperature inversions developing in the mountain valleys and passes. Light to moderate NE winds turning E.
Sunny and warm. Light to moderate E winds turning ESE and decreasing.
East Central
Friday Night Clear and warm. Temperature inversions developing in the mountain valleys and passes. Moderate NE winds decreasing and turning E.
Sunny and warm. Light to moderate E winds turning ESE and decreasing.
East South
Friday Night Clear and warm. Temperature inversions developing in the mountain valleys and passes. Moderate NE winds becoming E.
Sunny and warm. Light to moderate E winds decreasing and turning ESE.
Mt. Hood
Friday Night Clear and warm with temperature inversions developing. Moderate to strong and gusty E winds, turning ESE and decreasing slightly overnight.
Sunny and warm. Light to moderate SE winds decreasing.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Friday Evening Snow Level* None' None' None' None' 11000' 11000' None' 11500'
Friday Night Snow Level* None' None' None' None' 11000' 11000' None' 11000'
Saturday Morning Snow Level* None' None' None' None' 10500' 11000' None' 11000'
Saturday Afternoon Snow Level* None' None' None' None' 10500' 10500' None' 11000'
Saturday Evening Snow Level* None' None' None' None' 10500' 10500' None' 11000'
Saturday Night Snow Level* None' None' None' None' 10000' 10500' None' 11000'
Sunday Morning Snow Level* None' None' None' None' 10500' 10500' None' 11000'
Hurricane Ridge Elevation
Friday Evening Snow Level
None'
(Easterly Flow *)
Friday Night Snow Level
None'
(Easterly Flow *)
Saturday Morning Snow Level
None'
(Easterly Flow *)
Saturday Afternoon Snow Level
None'
(Easterly Flow *)
Saturday Evening Snow Level
None'
(Easterly Flow *)
Saturday Night Snow Level
None'
(Easterly Flow *)
Sunday Morning Snow Level
None'
(Easterly Flow *)
Sunday Afternoon Snow Level
None'
(Easterly Flow *)
Mt. Baker Elevation
Friday Evening Snow Level
None'
(Easterly Flow *)
Friday Night Snow Level
None'
(Easterly Flow *)
Saturday Morning Snow Level
None'
(Easterly Flow *)
Saturday Afternoon Snow Level
None'
(Easterly Flow *)
Saturday Evening Snow Level
None'
(Easterly Flow *)
Saturday Night Snow Level
None'
(Easterly Flow *)
Sunday Morning Snow Level
None'
(Easterly Flow *)
Sunday Afternoon Snow Level
None'
(Easterly Flow *)
Washington Pass Elevation
Friday Evening Snow Level
None'
(Easterly Flow *)
Friday Night Snow Level
None'
(Easterly Flow *)
Saturday Morning Snow Level
None'
(Easterly Flow *)
Saturday Afternoon Snow Level
None'
(Easterly Flow *)
Saturday Evening Snow Level
None'
(Easterly Flow *)
Saturday Night Snow Level
None'
(Easterly Flow *)
Sunday Morning Snow Level
None'
(Easterly Flow *)
Sunday Afternoon Snow Level
None'
(Easterly Flow *)
Leavenworth Elevation
Friday Evening Snow Level
None'
(Easterly Flow *)
Friday Night Snow Level
None'
(Easterly Flow *)
Saturday Morning Snow Level
None'
(Easterly Flow *)
Saturday Afternoon Snow Level
None'
(Easterly Flow *)
Saturday Evening Snow Level
None'
(Easterly Flow *)
Saturday Night Snow Level
None'
(Easterly Flow *)
Sunday Morning Snow Level
None'
(Easterly Flow *)
Sunday Afternoon Snow Level
None'
(Easterly Flow *)
Stevens Pass Elevation
Friday Evening Snow Level
11000'
(Easterly Flow *)
Friday Night Snow Level
11000'
(Easterly Flow *)
Saturday Morning Snow Level
10500'
(Easterly Flow *)
Saturday Afternoon Snow Level
10500'
(Easterly Flow *)
Saturday Evening Snow Level
10500'
(Easterly Flow *)
Saturday Night Snow Level
10000'
(Easterly Flow *)
Sunday Morning Snow Level
10500'
(Easterly Flow *)
Sunday Afternoon Snow Level
10500'
(Easterly Flow *)
Snoqualmie Pass Elevation
Friday Evening Snow Level
11000'
(Easterly Flow *)
Friday Night Snow Level
11000'
(Easterly Flow *)
Saturday Morning Snow Level
11000'
(Easterly Flow *)
Saturday Afternoon Snow Level
10500'
(Easterly Flow *)
Saturday Evening Snow Level
10500'
(Easterly Flow *)
Saturday Night Snow Level
10500'
(Easterly Flow *)
Sunday Morning Snow Level
10500'
(Easterly Flow *)
Sunday Afternoon Snow Level
10500'
(Easterly Flow *)
Mt. Rainier & Crystal Elevation
Friday Evening Snow Level
None'
(Easterly Flow *)
Friday Night Snow Level
None'
(Easterly Flow *)
Saturday Morning Snow Level
None'
(Easterly Flow *)
Saturday Afternoon Snow Level
None'
(Easterly Flow *)
Saturday Evening Snow Level
None'
(Easterly Flow *)
Saturday Night Snow Level
None'
(Easterly Flow *)
Sunday Morning Snow Level
None'
(Easterly Flow *)
Sunday Afternoon Snow Level
None'
(Easterly Flow *)
Mt. Hood Elevation
Friday Evening Snow Level
11500'
(Easterly Flow *)
Friday Night Snow Level
11000'
(Easterly Flow *)
Saturday Morning Snow Level
11000'
(Easterly Flow *)
Saturday Afternoon Snow Level
11000'
(Easterly Flow *)
Saturday Evening Snow Level
11000'
(Easterly Flow *)
Saturday Night Snow Level
11000'
(Easterly Flow *)
Sunday Morning Snow Level
11000'
(Easterly Flow *)
Sunday Afternoon Snow Level
11000'
(Easterly Flow *)

* 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

Friday Night Saturday Saturday Night Sunday
5 pm - 5 am 5 am - 5 pm 5 pm - 5 am 5 am - 5 pm
Hurricane Ridge 0 0 0 0
Mt Baker Ski Area 0 0 0 0
Mt. Loop - Barlow Pass 0 0 0 0
Stevens Pass 0 0 0 0
Snoqualmie Pass 0 0 0 0
Crystal Mt 0 0 0 0
Paradise 0 0 0 0
White Pass 0 0 0 0
Washington Pass 0 0 0 0
Mission Ridge 0 0 0 0
Salmon la Sac - Gallagher Head 0 0 0 0
Tieton River - Darland Mt. 0 0 0 0
Mt Hood Meadows 0 0 0 0
0 0 0 0
Hurricane Ridge Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Mt Baker Ski Area Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Mt. Loop - Barlow Pass Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Stevens Pass Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Snoqualmie Pass Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Crystal Mt Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Paradise Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
White Pass Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Washington Pass Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Mission Ridge Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Salmon la Sac - Gallagher Head Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Tieton River - Darland Mt. Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Mt Hood Meadows Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Timberline Precipitation Forecast
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Friday Evening --- None - None --- None - None --- None - None --- None - None E None - None
Friday Night --- None - None --- None - None --- None - None --- None - None ESE None - None
Saturday Morning --- None - None --- None - None --- None - None --- None - None SE None - None
Hurricane Ridge Elevation
Friday Evening --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Mt. Baker Elevation
Friday Evening --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Stevens and Snoqualmie Pass Elevation
Friday Evening --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Mt. Rainier Elevation
Friday Evening --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Mt. Hood Elevation
Friday Evening E None - None
Friday Night ESE None - None
Saturday Morning SE None - None
Saturday Afternoon SE None - None
Hurricane Ridge Direction - Speed
Friday Evening --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Mt. Baker Direction - Speed
Friday Evening --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Friday Evening --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Mt. Rainier Direction - Speed
Friday Evening --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Mt. Hood Direction - Speed
Friday Evening E None - None
Friday Night ESE None - None
Saturday Morning SE None - None
Saturday Afternoon SE None - None

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.

Extended Weather Synopsis for Sunday night through Tuesday

We remain stuck in a persistent high-pressure ridge pattern well into next week. Temperatures and freezing levels will moderate slightly Monday and Tuesday as the ridge flattens slightly, but it won't be cold. With freezing levels well above our forecast elevations, sites will remain above freezing. Fortunately, the weather becomes relatively easy to predict. Expect generally clear skies, a few passing high thin clouds, warm temperatures, and light winds. This pattern could start to break down later in the week. 

Extended Snow/Freezing Levels

Mt. Baker Snoqualmie Pass Mt. Hood Easterly Flow *
Sunday Night Snow Level None' - None' None' - None' None' - None' *
Monday Snow Level None' - None' None' - None' None' - None' *
Monday Night Snow Level None' - None' None' - None' None' - None' *
Mt. Baker Elevation
Sunday Night Snow Level
None' - None'
(Easterly Flow *)
Monday Snow Level
None' - None'
(Easterly Flow *)
Monday Night Snow Level
None' - None'
(Easterly Flow *)
Tuesday Snow Level
None' - None'
Snoqualmie Pass Elevation
Sunday Night Snow Level
None' - None'
(Easterly Flow *)
Monday Snow Level
None' - None'
(Easterly Flow *)
Monday Night Snow Level
None' - None'
(Easterly Flow *)
Tuesday Snow Level
None' - None'
Mt. Hood Elevation
Sunday Night Snow Level
None' - None'
(Easterly Flow *)
Monday Snow Level
None' - None'
(Easterly Flow *)
Monday Night Snow Level
None' - None'
(Easterly Flow *)
Tuesday Snow Level
None' - None'

* 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 I Extended Weather

Previous forecast from March 15, 2024

The NWAC program is administered by the USDA-Forest Service and operates from the National Weather Service Forecast Office in Seattle. NWAC services are made possible by important collaboration and support from a wide variety of federal, state and private cooperators.