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Mountain Weather Forecast

Issued: 2:33 PM PST Friday, March 22, 2024
by Robert Hahn

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 night through Sunday

The Pacific Northwest transitions back to more typical early spring weather as we head into the weekend. A cold front ahead of a closed low ultimately ushers in the cooling, but also extends a band of moderate rain and snow, lifting northward largely ahead of the cooling. Peak precipitation occurs during the evening hours for Mt Hood, overnight for the southern and central Washington Cascades, and the front stalls over the northern Cascades on Saturday. Models differ regarding whether some moderate precipitation lingers over the central Washington Cascades into the morning hours. Snow levels start around 5500-6000 ft Friday evening, but drop to 4000 ft on Saturday. Upper elevations across the region can expect 4-8” of snowfall, with those amounts extending into middle elevations from Stevens Pass northward as snow levels lower to 4000 ft by Saturday. Expect a relative break in the action for areas south of the precipitation band before more scattered light rain and snow showers develop from Snoqualmie Pass south to Mt Hood during the afternoon.

Light rain and snow showers continue across the region on Saturday night under the influence of a broad trough. NNW flow aloft develops on Sunday, with scattered to isolated convective showers for both sides the Cascades from around Stevens Pass southward. Snow levels range from 3000-4000 ft. Expect breaks in the clouds with more plentiful sunshine east of the Cascade Crest, particularly during the morning hours.

Weather Forecast

Olympics
Friday Night Increasing light rain and snow (moderate in southern and eastern Olympics).
Cooler with moderate rain and snow early, tapering to light showers.
West North
Friday Night Scattered light rain and snow showers.
Light to moderate rain and snow. Cooler.
West Central
Friday Night Scattered light rain and snow showers becoming light to moderate rain and snow after midnight.
Moderate rain and snow becoming light and tapering in the afternoon. Cooler.
West South
Friday Night Light, increasing to moderate, rain and snow.
Light rain and snow showers. Cooler.
Stevens Pass
Friday Night Light rain and snow develop and increase towards morning. Light ridgeline and E winds at the Pass shift W overnight.
Moderate rain and snow early become light and scattered as the day progresses. Light ridgeline and W wind at the Pass. Cooler.
Snoqualmie Pass
Friday Night Light rain and snow develop and increase towards morning. Light ridgeline and E winds at the Pass shift W overnight.
Moderate rain and snow early become light and scattered as the day progresses. Light ridgeline and W wind at the Pass. Cooler.
East North
Friday Night Increasing periods of light rain and snow.
Light to moderate rain and snow. Cooler.
East Central
Friday Night Increasing light rain and snow become moderate overnight. become moderate overnight.
Moderate rain and snow become light and showery early in the day.
East South
Friday Night Increasing light to moderate rain and snow.
Decreasing light rain and snow showers. Cooler.
Mt. Hood
Friday Night Moderate rain and snow decrease into the light range overnight. Moderate ridgeline winds from variable directions.
Light rain and snow showers. Decreasing light to moderate ridgeline winds.

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' 5500' 6000' None' 6000'
Friday Night Snow Level None' None' None' None' 4500' 4500' None' 5000'
Saturday Morning Snow Level None' None' None' None' 4000' 4000' None' 4000'
Saturday Afternoon Snow Level None' None' None' None' 4000' 4000' None' 4000'
Saturday Evening Snow Level None' None' None' None' 4000' 4000' None' 4000'
Saturday Night Snow Level None' None' None' None' 4000' 4000' None' 4000'
Sunday Morning Snow Level None' None' None' None' 3500' 3000' None' 3500'
Hurricane Ridge Elevation
Friday Evening Snow Level
None'
(Easterly Flow *)
Friday Night Snow Level
None'
Saturday Morning Snow Level
None'
Saturday Afternoon Snow Level
None'
Saturday Evening Snow Level
None'
Saturday Night Snow Level
None'
Sunday Morning Snow Level
None'
Sunday Afternoon Snow Level
None'
Mt. Baker Elevation
Friday Evening Snow Level
None'
(Easterly Flow *)
Friday Night Snow Level
None'
Saturday Morning Snow Level
None'
Saturday Afternoon Snow Level
None'
Saturday Evening Snow Level
None'
Saturday Night Snow Level
None'
Sunday Morning Snow Level
None'
Sunday Afternoon Snow Level
None'
Washington Pass Elevation
Friday Evening Snow Level
None'
(Easterly Flow *)
Friday Night Snow Level
None'
Saturday Morning Snow Level
None'
Saturday Afternoon Snow Level
None'
Saturday Evening Snow Level
None'
Saturday Night Snow Level
None'
Sunday Morning Snow Level
None'
Sunday Afternoon Snow Level
None'
Leavenworth Elevation
Friday Evening Snow Level
None'
(Easterly Flow *)
Friday Night Snow Level
None'
Saturday Morning Snow Level
None'
Saturday Afternoon Snow Level
None'
Saturday Evening Snow Level
None'
Saturday Night Snow Level
None'
Sunday Morning Snow Level
None'
Sunday Afternoon Snow Level
None'
Stevens Pass Elevation
Friday Evening Snow Level
5500'
(Easterly Flow *)
Friday Night Snow Level
4500'
Saturday Morning Snow Level
4000'
Saturday Afternoon Snow Level
4000'
Saturday Evening Snow Level
4000'
Saturday Night Snow Level
4000'
Sunday Morning Snow Level
3500'
Sunday Afternoon Snow Level
3500'
Snoqualmie Pass Elevation
Friday Evening Snow Level
6000'
(Easterly Flow *)
Friday Night Snow Level
4500'
Saturday Morning Snow Level
4000'
Saturday Afternoon Snow Level
4000'
Saturday Evening Snow Level
4000'
Saturday Night Snow Level
4000'
Sunday Morning Snow Level
3000'
Sunday Afternoon Snow Level
4000'
Mt. Rainier & Crystal Elevation
Friday Evening Snow Level
None'
(Easterly Flow *)
Friday Night Snow Level
None'
Saturday Morning Snow Level
None'
Saturday Afternoon Snow Level
None'
Saturday Evening Snow Level
None'
Saturday Night Snow Level
None'
Sunday Morning Snow Level
None'
Sunday Afternoon Snow Level
None'
Mt. Hood Elevation
Friday Evening Snow Level
6000'
(Easterly Flow *)
Friday Night Snow Level
5000'
Saturday Morning Snow Level
4000'
Saturday Afternoon Snow Level
4000'
Saturday Evening Snow Level
4000'
Saturday Night Snow Level
4000'
Sunday Morning Snow Level
3500'
Sunday Afternoon Snow Level
3500'

* 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 LT 0.10 0.25 LT 0.10 0
Mt Baker Ski Area LT 0.25 0.25 - 0.50 LT 0.10 0
Mt. Loop - Barlow Pass 0.25 0.25 - 0.50 LT 0.10 LT 0.10
Stevens Pass 0.25 0.25 - 0.50 LT 0.10 LT 0.10
Snoqualmie Pass 0.25 0.25 - 0.50 LT 0.10 LT 0.10
Crystal Mt 0.50 0.25 LT 0.10 LT 0.10
Paradise 0.50 - 0.75 LT 0.25 LT 0.25 LT 0.10
White Pass 0.25 - 0.50 LT 0.10 LT 0.10 LT 0.10
Washington Pass LT 0.25 0.25 - 0.50 LT 0.25 0
Mission Ridge 0.25 - 0.50 0.25 LT 0.10 LT 0.10
Salmon la Sac - Gallagher Head 0.25 - 0.50 0.25 - 0.50 LT 0.10 LT 0.10
Tieton River - Darland Mt. 0.50 LT 0.10 LT 0.10 LT 0.10
Mt Hood Meadows 0.25 - 0.50 LT 0.10 LT 0.10 LT 0.10
0.25 - 0.50 LT 0.25 LT 0.10 LT 0.10
Hurricane Ridge Precipitation Forecast
Friday Night LT 0.10
Saturday 0.25
Saturday Night LT 0.10
Sunday 0
Mt Baker Ski Area Precipitation Forecast
Friday Night LT 0.25
Saturday 0.25 - 0.50
Saturday Night LT 0.10
Sunday 0
Mt. Loop - Barlow Pass Precipitation Forecast
Friday Night 0.25
Saturday 0.25 - 0.50
Saturday Night LT 0.10
Sunday LT 0.10
Stevens Pass Precipitation Forecast
Friday Night 0.25
Saturday 0.25 - 0.50
Saturday Night LT 0.10
Sunday LT 0.10
Snoqualmie Pass Precipitation Forecast
Friday Night 0.25
Saturday 0.25 - 0.50
Saturday Night LT 0.10
Sunday LT 0.10
Crystal Mt Precipitation Forecast
Friday Night 0.50
Saturday 0.25
Saturday Night LT 0.10
Sunday LT 0.10
Paradise Precipitation Forecast
Friday Night 0.50 - 0.75
Saturday LT 0.25
Saturday Night LT 0.25
Sunday LT 0.10
White Pass Precipitation Forecast
Friday Night 0.25 - 0.50
Saturday LT 0.10
Saturday Night LT 0.10
Sunday LT 0.10
Washington Pass Precipitation Forecast
Friday Night LT 0.25
Saturday 0.25 - 0.50
Saturday Night LT 0.25
Sunday 0
Mission Ridge Precipitation Forecast
Friday Night 0.25 - 0.50
Saturday 0.25
Saturday Night LT 0.10
Sunday LT 0.10
Salmon la Sac - Gallagher Head Precipitation Forecast
Friday Night 0.25 - 0.50
Saturday 0.25 - 0.50
Saturday Night LT 0.10
Sunday LT 0.10
Tieton River - Darland Mt. Precipitation Forecast
Friday Night 0.50
Saturday LT 0.10
Saturday Night LT 0.10
Sunday LT 0.10
Mt Hood Meadows Precipitation Forecast
Friday Night 0.25 - 0.50
Saturday LT 0.10
Saturday Night LT 0.10
Sunday LT 0.10
Timberline Precipitation Forecast
Friday Night 0.25 - 0.50
Saturday LT 0.25
Saturday Night LT 0.10
Sunday LT 0.10

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 WSW None - None
Saturday Morning --- None - None --- None - None --- None - None --- None - None SW 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 WSW None - None
Saturday Morning SW None - None
Saturday Afternoon SW 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 WSW None - None
Saturday Morning SW None - None
Saturday Afternoon SW 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.

Free Winds at 9000' (mph)

Mt. Baker Washington Pass Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Friday Evening --- None - None --- None - None --- None - None --- None - None --- None - None
Friday Night --- None - None --- None - None --- None - None --- None - None --- None - None
Saturday Morning --- None - None --- None - None --- None - None --- None - None --- None - None
Mt. Baker Direction - Speed
Friday Evening --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None
Washington Pass 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 --- None - None
Friday Night --- None - None
Saturday Morning --- None - None
Saturday Afternoon --- None - None

Extended Weather Synopsis for Sunday night through Tuesday

A weak shortwave ridge brings a relative break in the shower activity Sunday night. Additional disturbances arriving Monday through Tuesday bring shower activity, mainly to the west slopes of the Cascades and Olympics. Temperatures will be slightly below seasonal norms.

 

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'
Monday Snow Level
None' - None'
Monday Night Snow Level
None' - None'
Tuesday Snow Level
None' - None'
Snoqualmie Pass Elevation
Sunday Night Snow Level
None' - None'
Monday Snow Level
None' - None'
Monday Night Snow Level
None' - None'
Tuesday Snow Level
None' - None'
Mt. Hood Elevation
Sunday Night Snow Level
None' - None'
Monday Snow Level
None' - None'
Monday Night Snow Level
None' - None'
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 Free Winds 9k I Extended Weather

Previous forecast from March 22, 2024

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