Issued: 2:37 PM PDT Saturday, March 29, 2025
by Robert Hahn

Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather

Weather Synopsis

We're entering a brief interlude between slow moving troughs. Expect shower activity to end early across the west slopes of the Cascades as winds become light and then shift ESE overnight. Freezing levels levels drop to around 3500-4000 ft overnight under clearing skies. The impact of a low well offshore will begin to be felt on Sunday. ESE winds will increase into the moderate range in favored areas near the Cascade Crest  from the Canadian border to Mt Hood. Low clouds will begin to form along the east slopes of the Cascades in response to this upslope flow. At the same time mid-level clouds will gradually thicken, obscuring skies by the afternoon. Light rain and will at Mt Hood during the late afternoon hours as an initial band of moisture lifts northward. This band spreads northward during the evening hours. The E flow will enable steadier and heavier precipitation for the E slopes of the Cascades. Scattered rain and snow showers continue behind the initial wave as snow levels drop below 4000 ft.

Monday may bring a relative break during the morning hours with convective showers in the afternoon. Some areas could pick up 1-4" of snow with snow levels around 3000-3500 ft.

Weather Forecast

Olympics
West North
West Central
West South
Stevens Pass
Snoqualmie Pass
East North
East Central
East South
Mt. Hood
Use dropdown to select your zone
Saturday Night A few snow showers or flurries early, then partly clearing.
Sunday Filtered sunshine in the morning, then obscured skies in the afternoon.
Saturday Night A few rain or snow showers early, then partly clearing.
Sunday Filtered sunshine in the morning, then obscured skies in the afternoon. Moderate ridgeline wind developing in areas closer to the Cascade Crest.
Saturday Night A few very light rain or snow showers ending in the evening, then partial clearing.
Sunday Filtered sunshine in the morning, then obscured skies in the afternoon. Moderate ridgeline winds developing.
Saturday Night A few rain or snow showers early, then partial clearing with some high and mi-level clouds arriving.
Sunday Filtered sunshine in the morning, then obscured skies in the afternoon. Moderate ridgeline winds developing.
Saturday Night Gradual clearing. Light ridgeline winds. Light W winds shift E at the Pass overnight.
Sunday Filtered sunshine in the morning, then obscured skies in the afternoon. Moderate ridgeline and light to moderate E winds at the Pass.
Saturday Night A few rain or snow showers possible early, then gradual clearing. Light ridgeline winds. Light W winds shift E at the Pass overnight.
Sunday Filtered sunshine in the morning, then obscured skies in the afternoon. Moderate to occasionally strong ridgeline and moderate E winds at the Pass.
Saturday Night Partly to mostly clear skies.
Sunday Increasing clouds. Moderate ridgeline winds developing.
Saturday Night Partly to mostly clear skies.
Sunday Increasing clouds with a chance of very light rain or snow late in the day. Moderate ridgeline winds developing.
Saturday Night Partly to mostly clear skies with some high and mi-level clouds arriving.
Sunday Increasing clouds with a chance of light rain or snow developing late in the day. Moderate ridgeline winds developing.
Saturday Night A few very light rain or snow showers in the evening, then partial clearing overnight with some high and mi-level clouds arriving.
Sunday Obscured skies in the morning with light rain and snow developing in the afternoon. Increasing moderate ridgeline winds.

Issued: 2:37 PM PDT Saturday, March 29, 2025

Precipitation (in)

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

Issued: 2:37 PM PDT Saturday, March 29, 2025

Snow Level (ft)

Saturday Evening Saturday Night* Sunday Morning* Sunday Afternoon* Sunday Evening Sunday Night Monday Morning Monday Afternoon
Olympics 3500' 4000' 4500' 6000' 4500' 3500' 2500' 3000'
West North 3500' 3500' 4000' 6000' 4500' 4000' 3000' 3500'
West Central 3500' 3500' 4500' 6500' 4500' 4000' 3000' 3500'
West South 4500' 3500' 4500' 5500' 4500' 4000' 3000' 3500'
Stevens Pass 4500' 3500' 4000' 5500' 4500' 4000' 3000' 3500'
Snoqualmie Pass 4500' 3500' 4500' 5500' 4500' 4000' 3000' 3500'
East North 5000' 3500' 4000' 5500' 4500' 4000' 3000' 3500'
East Central 5000' 4000' 4500' 5500' 4500' 4000' 3000' 3500'
East South 5000' 4000' 4000' 4000' 4500' 3500' 3000' 3500'
Mt. Hood 5000' 4000' 5500' 4500' 5000' 3500' 3000' 3500'
Olympics Elevation
Saturday Evening 3500'
Saturday Night* 4000'
Sunday Morning* 4500'
Sunday Afternoon* 6000'
Sunday Evening 4500'
Sunday Night 3500'
Monday Morning 2500'
Monday Afternoon 3000'
West North Elevation
Saturday Evening 3500'
Saturday Night* 3500'
Sunday Morning* 4000'
Sunday Afternoon* 6000'
Sunday Evening 4500'
Sunday Night 4000'
Monday Morning 3000'
Monday Afternoon 3500'
West Central Elevation
Saturday Evening 3500'
Saturday Night* 3500'
Sunday Morning* 4500'
Sunday Afternoon* 6500'
Sunday Evening 4500'
Sunday Night 4000'
Monday Morning 3000'
Monday Afternoon 3500'
West South Elevation
Saturday Evening 4500'
Saturday Night* 3500'
Sunday Morning* 4500'
Sunday Afternoon* 5500'
Sunday Evening 4500'
Sunday Night 4000'
Monday Morning 3000'
Monday Afternoon 3500'
Stevens Pass Elevation
Saturday Evening 4500'
Saturday Night* 3500'
Sunday Morning* 4000'
Sunday Afternoon* 5500'
Sunday Evening 4500'
Sunday Night 4000'
Monday Morning 3000'
Monday Afternoon 3500'
Snoqualmie Pass Elevation
Saturday Evening 4500'
Saturday Night* 3500'
Sunday Morning* 4500'
Sunday Afternoon* 5500'
Sunday Evening 4500'
Sunday Night 4000'
Monday Morning 3000'
Monday Afternoon 3500'
East North Elevation
Saturday Evening 5000'
Saturday Night* 3500'
Sunday Morning* 4000'
Sunday Afternoon* 5500'
Sunday Evening 4500'
Sunday Night 4000'
Monday Morning 3000'
Monday Afternoon 3500'
East Central Elevation
Saturday Evening 5000'
Saturday Night* 4000'
Sunday Morning* 4500'
Sunday Afternoon* 5500'
Sunday Evening 4500'
Sunday Night 4000'
Monday Morning 3000'
Monday Afternoon 3500'
East South Elevation
Saturday Evening 5000'
Saturday Night* 4000'
Sunday Morning* 4000'
Sunday Afternoon* 4000'
Sunday Evening 4500'
Sunday Night 3500'
Monday Morning 3000'
Monday Afternoon 3500'
Mt. Hood Elevation
Saturday Evening 5000'
Saturday Night* 4000'
Sunday Morning* 5500'
Sunday Afternoon* 4500'
Sunday Evening 5000'
Sunday Night 3500'
Monday Morning 3000'
Monday Afternoon 3500'

Issued: 2:37 PM PDT Saturday, March 29, 2025

5000' Temperatures (°F)

Saturday Night Sunday
Max / Min Max / Min
Olympics 31 / 27 37 / 26
West North 32 / 26 38 / 27
West Central 32 / 27 37 / 28
West South 33 / 26 38 / 26
Stevens Pass 33 / 27 37 / 28
Snoqualmie Pass 32 / 27 37 / 28
East North 35 / 25 37 / 25
East Central 34 / 27 37 / 27
East South 35 / 27 37 / 26
Mt. Hood 34 / 29 40 / 30
Olympics 5000' Temperature Forecast
(Max / Min)
Saturday Night 31 / 27
Sunday 37 / 26
West North 5000' Temperature Forecast
(Max / Min)
Saturday Night 32 / 26
Sunday 38 / 27
West Central 5000' Temperature Forecast
(Max / Min)
Saturday Night 32 / 27
Sunday 37 / 28
West South 5000' Temperature Forecast
(Max / Min)
Saturday Night 33 / 26
Sunday 38 / 26
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Saturday Night 33 / 27
Sunday 37 / 28
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Saturday Night 32 / 27
Sunday 37 / 28
East North 5000' Temperature Forecast
(Max / Min)
Saturday Night 35 / 25
Sunday 37 / 25
East Central 5000' Temperature Forecast
(Max / Min)
Saturday Night 34 / 27
Sunday 37 / 27
East South 5000' Temperature Forecast
(Max / Min)
Saturday Night 35 / 27
Sunday 37 / 26
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Saturday Night 34 / 29
Sunday 40 / 30

Issued: 2:37 PM PDT Saturday, March 29, 2025

Ridgeline Winds (mph)

Saturday Evening Saturday Night Sunday Morning Sunday Afternoon
Olympics E 0-10 ESE 5-15 ESE 5-15 ESE 10-20
West North VAR 0-10 ESE 5-15 ESE 5-15 ESE 10-20
West Central VAR 0-10 ESE 5-15 ESE 10-20 ESE 15-25
West South VAR 0-10 ESE 5-15 SE 10-20 ESE 20-30
Stevens Pass VAR 0-10 ESE 5-15 ESE 10-20 ESE 15-25
Snoqualmie Pass VAR 0-10 ESE 10-20 ESE 15-25 ESE 25-35
East North VAR 0-10 ESE 5-15 E 10-20 ESE 15-25
East Central VAR 0-10 ESE 5-15 ESE 10-20 ESE 15-25
East South VAR 0-10 ESE 5-15 ESE 10-20 ESE 15-25
Mt. Hood SE 0-10 SE 5-15 SE 15-25 ESE 20-30
Olympics Ridgeline Winds (mph)
Saturday Evening E 0-10
Saturday Night ESE 5-15
Sunday Morning ESE 5-15
Sunday Afternoon ESE 10-20
West North Ridgeline Winds (mph)
Saturday Evening VAR 0-10
Saturday Night ESE 5-15
Sunday Morning ESE 5-15
Sunday Afternoon ESE 10-20
West Central Ridgeline Winds (mph)
Saturday Evening VAR 0-10
Saturday Night ESE 5-15
Sunday Morning ESE 10-20
Sunday Afternoon ESE 15-25
West South Ridgeline Winds (mph)
Saturday Evening VAR 0-10
Saturday Night ESE 5-15
Sunday Morning SE 10-20
Sunday Afternoon ESE 20-30
Stevens Pass Ridgeline Winds (mph)
Saturday Evening VAR 0-10
Saturday Night ESE 5-15
Sunday Morning ESE 10-20
Sunday Afternoon ESE 15-25
Snoqualmie Pass Ridgeline Winds (mph)
Saturday Evening VAR 0-10
Saturday Night ESE 10-20
Sunday Morning ESE 15-25
Sunday Afternoon ESE 25-35
East North Ridgeline Winds (mph)
Saturday Evening VAR 0-10
Saturday Night ESE 5-15
Sunday Morning E 10-20
Sunday Afternoon ESE 15-25
East Central Ridgeline Winds (mph)
Saturday Evening VAR 0-10
Saturday Night ESE 5-15
Sunday Morning ESE 10-20
Sunday Afternoon ESE 15-25
East South Ridgeline Winds (mph)
Saturday Evening VAR 0-10
Saturday Night ESE 5-15
Sunday Morning ESE 10-20
Sunday Afternoon ESE 15-25
Mt. Hood Ridgeline Winds (mph)
Saturday Evening SE 0-10
Saturday Night SE 5-15
Sunday Morning SE 15-25
Sunday Afternoon ESE 20-30

Issued: 2:37 PM PDT Saturday, March 29, 2025

Extended Weather Synopsis

The offshore upper low drifts towards the Oregon coast on Monday, then moves onshore overnight as a trough. Expect scattered snow showers to focus on the mid-day and afternoon hours as cooler than average temperatures drive convection. NW flow develops Tuesday night through Wednesday with periods of light rain/snow showers focused on the west slopes of our mountain as below normal temperatures continue.

Extended Snow Level (ft)

Monday Night Tuesday Tuesday Night Wednesday
West North 3000' 3000' 3000' 2500'
Snoqualmie Pass 3000' 3000' 3000' 2500'
Mt. Hood 3000' 3000' 3500' 3000'
West North Elevation
Monday Night 3000'
Tuesday 3000'
Tuesday Night 3000'
Wednesday 2500'
Snoqualmie Pass Elevation
Monday Night 3000'
Tuesday 3000'
Tuesday Night 3000'
Wednesday 2500'
Mt. Hood Elevation
Monday Night 3000'
Tuesday 3000'
Tuesday Night 3500'
Wednesday 3000'

Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather

Previous forecast from Mar 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.

The 5000’ temperature forecast does not imply a trend over the 12 hr period and only represents the max and min temperatures within a 12 hr period in the zone. The 6-hr snow level forecast, the forecast discussion, and weather forecast sections may add detail regarding temperature trends.

The snow level forecast represents the general snow level over a 6 hr time period. Freezing levels are forecast when precipitation is not expected.

*Easterly or offshore flow is highlighted with an asterisk when we expect relatively cool east winds in the major Cascade Passes. Easterly flow will often lead to temperature inversions and is a key variable for forecasting precipitation type in the Cascade Passes. Strong easterly flow events can affect terrain on a more regional scale.

Ridgeline winds are the average wind speed and direction over a 6 hr time period.

The wind forecast represents an elevation range instead of a single elevation slice. The elevation range overlaps with the near and above treeline elevation bands in the avalanche forecast and differs per zone.

Wind direction indicates the direction the wind originates or comes from on the 16-point compass rose.

Water Equivalent (WE) is the liquid water equivalent of all precipitation types; rain, snow, ice pellets, etc., forecast to the hundredth of an inch at specific locations. To use WE as a proxy for snowfall amounts, start with a snow to water ratio of 10:1 (10 inches of snow = 1 inch WE). Temperatures at or near freezing will generally have a lower ratio (heavy wet snow) and very cold temperatures can have a much higher ratio (dry fluffy snow).

The label LT, is shorthand for ‘less than’.