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Mountain Weather Forecast

Issued: 7:08 AM PST Tuesday, April 2, 2024
by Dennis D'Amico

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

Weather Synopsis for Tuesday & Wednesday

Today will mark the end of our recent stretch of mild and dry weather.  Mostly sunny skies will give way to increasing high clouds over the Olympics and north Cascades in the afternoon as a Pacific frontal system approaches. Freezing levels will still be quite high, 8000' in the north and 11,000' down near Mt Hood and mid-mountain temperatures will be in the 40s and 50s. However, ridgeline and alpine winds will increase today as the front approaches. 

A sharp front will pass through Tuesday night with gusty winds and steady precipitation quickly turning to showers with the frontal passage.  Snow levels will plummet by sunrise to near 2000' for the Olympics and Mt Baker area and 2500-3000' for areas further south and east. The northwest Cascades stand to pick up the most precipitation/snowfall through mid-morning Wednesday with a short-lived convergence zone affecting the mountain Loop Highway. Showers will become scattered in the afternoon and mostly focused on the west slopes of the Cascades with drier conditions likely along the east slopes of the Cascades. 

Weather Forecast

Olympics
Tuesday Mostly sunny, becoming mostly cloudy mid to late afternoon. Moderate ridgeline winds.
Light to occasionally moderate rain and snow becoming showers after midnight. Sharp cooling trend. Moderate to occasionally strong ridgeline winds.
West North
Tuesday Mostly sunny, becoming partly sunny with increasing high clouds in the afternoon. Moderate to occasionally strong ridgeline winds.
Light to moderate rain and snow developing in the evening becoming showers after midnight. Sharp cooling trend. Moderate to occasionally strong ridgeline winds.
West Central
Tuesday Mostly sunny, becoming partly sunny with increasing high clouds in the afternoon. Moderate ridgeline winds.
Light to moderate rain and snow developing in the evening becoming showers after midnight. Sharp cooling trend. Moderate to occasionally strong ridgeline winds.
West South
Tuesday Mostly sunny. Increasing high clouds late in the afternoon. Moderate ridgeline winds.
Cloudy in the evening then light to occasionally moderate rain and snow developing around midnight, becoming shower late. Sharp cooling trend after midnight. Moderate to occasionally strong ridgeline winds.
Stevens Pass
Tuesday Mostly sunny. Increasing high clouds late in the afternoon. Pass level and ridgeline W winds becoming moderate in the afternoon.
Cloudy in the evening then light to occasionally moderate rain and snow developing around midnight, becoming shower late. Sharp cooling trend after midnight. Moderate to occasionally strong W ridgeline and Pass level winds.
Snoqualmie Pass
Tuesday Mostly sunny. Increasing high clouds late in the afternoon. Pass level and ridgeline W winds becoming moderate in the afternoon.
Cloudy in the evening then light to occasionally moderate rain and snow developing around midnight, becoming shower late. Sharp cooling trend after midnight. Moderate to occasionally strong W ridgeline and Pass level winds.
East North
Tuesday Mostly sunny, becoming partly sunny with increasing high clouds in the afternoon. Moderate to occasionally strong ridgeline winds.
Cloudy in the evening then light to occasionally moderate rain and snow developing around midnight, becoming shower late. Sharp cooling trend after midnight. Moderate to occasionally strong ridgeline winds.
East Central
Tuesday Mostly sunny. Increasing high clouds late in the afternoon. Moderate ridgeline winds.
Cloudy in the evening then light to occasionally moderate rain and snow developing around midnight, becoming shower late. Sharp cooling trend after midnight. Moderate to occasionally strong ridgeline winds.
East South
Tuesday Mostly sunny. Increasing high clouds late in the afternoon. Ridgeline winds becoming moderate in the afternoon.
Cloudy in the evening then light to occasionally moderate rain and snow developing around midnight, becoming shower late. Sharp cooling trend after midnight. Moderate to occasionally strong ridgeline winds.
Mt. Hood
Tuesday Mostly sunny. Ridgeline winds becoming moderate in the afternoon.
Cloudy in the evening then light to occasionally moderate rain and snow developing around midnight, becoming shower late. Sharp cooling trend after midnight. Strong ridgeline winds.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Tuesday Morning Snow Level None' None' None' None' 10000' 10000' None' 11000'
Tuesday Afternoon Snow Level None' None' None' None' 9000' 9000' None' 10000'
Tuesday Evening Snow Level None' None' None' None' 7000' 7000' None' 9000'
Tuesday Night Snow Level None' None' None' None' 4000' 4000' None' 4500'
Wednesday Morning Snow Level None' None' None' None' 2500' 2500' None' 3000'
Hurricane Ridge Elevation
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Mt. Baker Elevation
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Washington Pass Elevation
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Leavenworth Elevation
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Stevens Pass Elevation
Tuesday Morning Snow Level
10000'
Tuesday Afternoon Snow Level
9000'
Tuesday Evening Snow Level
7000'
Tuesday Night Snow Level
4000'
Wednesday Morning Snow Level
2500'
Wednesday Afternoon Snow Level
4000'
Snoqualmie Pass Elevation
Tuesday Morning Snow Level
10000'
Tuesday Afternoon Snow Level
9000'
Tuesday Evening Snow Level
7000'
Tuesday Night Snow Level
4000'
Wednesday Morning Snow Level
2500'
Wednesday Afternoon Snow Level
3500'
Mt. Rainier & Crystal Elevation
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Mt. Hood Elevation
Tuesday Morning Snow Level
11000'
Tuesday Afternoon Snow Level
10000'
Tuesday Evening Snow Level
9000'
Tuesday Night Snow Level
4500'
Wednesday Morning Snow Level
3000'
Wednesday 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

Tuesday Tuesday Night Wednesday
5 am - 5 pm 5 pm - 5 am 5 am - 5 pm
Hurricane Ridge 0 0.25 LT 0.25
Mt Baker Ski Area 0 0.50 - 0.75 LT 0.25
Mt. Loop - Barlow Pass 0 0.50 - 0.75 LT 0.25
Stevens Pass 0 0.25 - 0.50 LT 0.10
Snoqualmie Pass 0 0.25 - 0.50 LT 0.10
Crystal Mt 0 LT 0.10 LT 0.10
Paradise 0 0.25 LT 0.10
White Pass 0 LT 0.25 LT 0.10
Washington Pass 0 LT 0.25 LT 0.10
Mission Ridge 0 0 0
Salmon la Sac - Gallagher Head 0 LT 0.25 LT 0.10
Tieton River - Darland Mt. 0 LT 0.10 LT 0.10
Mt Hood Meadows 0 LT 0.25 LT 0.10
0 0.25 LT 0.10
Hurricane Ridge Precipitation Forecast
Tuesday 0
Tuesday Night 0.25
Wednesday LT 0.25
Mt Baker Ski Area Precipitation Forecast
Tuesday 0
Tuesday Night 0.50 - 0.75
Wednesday LT 0.25
Mt. Loop - Barlow Pass Precipitation Forecast
Tuesday 0
Tuesday Night 0.50 - 0.75
Wednesday LT 0.25
Stevens Pass Precipitation Forecast
Tuesday 0
Tuesday Night 0.25 - 0.50
Wednesday LT 0.10
Snoqualmie Pass Precipitation Forecast
Tuesday 0
Tuesday Night 0.25 - 0.50
Wednesday LT 0.10
Crystal Mt Precipitation Forecast
Tuesday 0
Tuesday Night LT 0.10
Wednesday LT 0.10
Paradise Precipitation Forecast
Tuesday 0
Tuesday Night 0.25
Wednesday LT 0.10
White Pass Precipitation Forecast
Tuesday 0
Tuesday Night LT 0.25
Wednesday LT 0.10
Washington Pass Precipitation Forecast
Tuesday 0
Tuesday Night LT 0.25
Wednesday LT 0.10
Mission Ridge Precipitation Forecast
Tuesday 0
Tuesday Night 0
Wednesday 0
Salmon la Sac - Gallagher Head Precipitation Forecast
Tuesday 0
Tuesday Night LT 0.25
Wednesday LT 0.10
Tieton River - Darland Mt. Precipitation Forecast
Tuesday 0
Tuesday Night LT 0.10
Wednesday LT 0.10
Mt Hood Meadows Precipitation Forecast
Tuesday 0
Tuesday Night LT 0.25
Wednesday LT 0.10
Timberline Precipitation Forecast
Tuesday 0
Tuesday Night 0.25
Wednesday LT 0.10

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Tuesday Morning --- None - None --- None - None --- None - None --- None - None WSW None - None
Tuesday Afternoon --- None - None --- None - None --- None - None --- None - None SW None - None
Tuesday Evening --- None - None --- None - None --- None - None --- None - None SW None - None
Hurricane Ridge Elevation
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Evening --- None - None
Tuesday Night --- None - None
Mt. Baker Elevation
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Evening --- None - None
Tuesday Night --- None - None
Stevens and Snoqualmie Pass Elevation
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Evening --- None - None
Tuesday Night --- None - None
Mt. Rainier Elevation
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Evening --- None - None
Tuesday Night --- None - None
Mt. Hood Elevation
Tuesday Morning WSW None - None
Tuesday Afternoon SW None - None
Tuesday Evening SW None - None
Tuesday Night WSW None - None
Hurricane Ridge Direction - Speed
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Evening --- None - None
Tuesday Night --- None - None
Mt. Baker Direction - Speed
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Evening --- None - None
Tuesday Night --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Evening --- None - None
Tuesday Night --- None - None
Mt. Rainier Direction - Speed
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Evening --- None - None
Tuesday Night --- None - None
Mt. Hood Direction - Speed
Tuesday Morning WSW None - None
Tuesday Afternoon SW None - None
Tuesday Evening SW None - None
Tuesday Night WSW 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.

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

Previous forecast from April 1, 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.