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Mountain Weather Forecast

Issued: 7:00 AM PST Sunday, March 30, 2025
by Robert Hahn

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

Weather Synopsis for Sunday & Monday

A closed offshore low rotates a frontal boundary northward into Oregon on Sunday. High clouds and ESE winds are already increasing ahead of the system early Sunday. The day will start with filtered sunshine in many areas but expect obscured skies by the afternoon. Moderate ESE winds continue to increase throughout the day in favored areas, particularly near and just west of the Cascade Crest. Light rain and snow start in the Mt Hood area around mid-afternoon, then spread onto the east slopes of the Cascades south of I-90. The initial band of moisture focuses on the southern Washington Cascades during the evening hours and the northern Cascades overnight and slightly favors the east slopes of the Cascades. Winds shift SW in the wake of this initial moisture band as snow levels drop from 4000-4500 down to 3000-3500 ft on Monday. Showers may slowly fill in behind this initial wave of moisture, Sunday night into Monday morning. However, they should increase with more widespread convective showers returning as the low approaches the Oregon Coast during the late morning through afternoon hours.

Weather Forecast

Olympics
Sunday Filtered sunshine early, then obscured skies from late morning onwards.
Periods of light rain and snow. Increasing light to moderate ridgeline winds.
West North
Sunday Filtered sunshine in the morning, then obscured skies in the afternoon.
Increasing periods of light to moderate rain and snow.
West Central
Sunday Filtered sunshine in the morning, then obscured skies in the afternoon. Increasing moderate ridgeline winds.
Increasing periods of light to moderate rain and snow. Decreasing light to moderate ridgeline winds.
West South
Sunday Filtered sunshine in the morning, then obscured skies in the afternoon. Increasing moderate ridgeline winds.
Periods of light rain and snow (moderate for the volcanoes). Moderate ridgeline winds in the evening.
Stevens Pass
Sunday FIltered sunshine in the morning, then obscured skies in the afternoon. Increasing moderate ridgeline and light to moderate E winds at the Pass.
Periods of light rain and snow. Moderate ridgeline winds become light. Light to moderate E wind switches W overnight at the Pass.
Snoqualmie Pass
Sunday Filtered sunshine in the morning, then obscured skies in the afternoon. Increasing moderate ridgeline and light to moderate E winds at the Pass.
Periods of light rain and snow. Moderate ridgeline winds become light. Light to moderate E wind switches W overnight at the Pass.
East North
Sunday FIltered sunshine in the morning, then obscured skies in the afternoon. Increasing moderate ridgeline winds.
Periods of light rain and snow, overnight. Moderate ridgeline winds become light.
East Central
Sunday FIltered sunshine in the morning, then obscured skies in the afternoon. Increasing moderate ridgeline winds.
Periods of light rain and snow, heaviest in the evening. Moderate ridgeline winds become light.
East South
Sunday Filtered sunshine early, then obscured skies from mid-morning onwards. A chance of light rain or snow late in the day. Increasing moderate ridgeline winds.
Periods of light rain and snow, heaviest in the evening. Increasing light to moderate ridgeline winds.
Mt. Hood
Sunday High clouds lower and thicken with increasing light rain and snow in the afternoon. Increasing moderate ridgeline winds.
Light rain and snow showers. 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
Sunday Morning Snow Level* None' None' None' None' 4000' 4500' None' 5500'
Sunday Afternoon Snow Level* None' None' None' None' 5500' 5500' None' 4500'
Sunday Evening Snow Level* None' None' None' None' 4500' 4500' None' 5000'
Sunday Night Snow Level None' None' None' None' 4000' 4000' None' 3500'
Monday Morning Snow Level None' None' None' None' 3000' 3000' None' 3000'
Hurricane Ridge Elevation
Sunday Morning Snow Level
None'
(Easterly Flow *)
Sunday Afternoon Snow Level
None'
(Easterly Flow *)
Sunday Evening Snow Level
None'
(Easterly Flow *)
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Mt. Baker Elevation
Sunday Morning Snow Level
None'
(Easterly Flow *)
Sunday Afternoon Snow Level
None'
(Easterly Flow *)
Sunday Evening Snow Level
None'
(Easterly Flow *)
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Washington Pass Elevation
Sunday Morning Snow Level
None'
(Easterly Flow *)
Sunday Afternoon Snow Level
None'
(Easterly Flow *)
Sunday Evening Snow Level
None'
(Easterly Flow *)
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Leavenworth Elevation
Sunday Morning Snow Level
None'
(Easterly Flow *)
Sunday Afternoon Snow Level
None'
(Easterly Flow *)
Sunday Evening Snow Level
None'
(Easterly Flow *)
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Stevens Pass Elevation
Sunday Morning Snow Level
4000'
(Easterly Flow *)
Sunday Afternoon Snow Level
5500'
(Easterly Flow *)
Sunday Evening Snow Level
4500'
(Easterly Flow *)
Sunday Night Snow Level
4000'
Monday Morning Snow Level
3000'
Monday Afternoon Snow Level
3500'
Snoqualmie Pass Elevation
Sunday Morning Snow Level
4500'
(Easterly Flow *)
Sunday Afternoon Snow Level
5500'
(Easterly Flow *)
Sunday Evening Snow Level
4500'
(Easterly Flow *)
Sunday Night Snow Level
4000'
Monday Morning Snow Level
3000'
Monday Afternoon Snow Level
3500'
Mt. Rainier & Crystal Elevation
Sunday Morning Snow Level
None'
(Easterly Flow *)
Sunday Afternoon Snow Level
None'
(Easterly Flow *)
Sunday Evening Snow Level
None'
(Easterly Flow *)
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Mt. Hood Elevation
Sunday Morning Snow Level
5500'
(Easterly Flow *)
Sunday Afternoon Snow Level
4500'
(Easterly Flow *)
Sunday Evening Snow Level
5000'
(Easterly Flow *)
Sunday Night Snow Level
3500'
Monday Morning Snow Level
3000'
Monday 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

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

Free Winds at 5000' (mph)

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

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

Previous forecast from March 29, 2025

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.