Issued: 1:56 PM PST Saturday, February 1, 2025
by Dennis D'Amico

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

Weather Synopsis

A cold upper level low will slowly drift south from its current position over Vancouver Island to our offshore waters over the next few days. And while it does, it will continue to rotate a steady stream of snow showers over the region characterized by scattered showers in the overnight and morning hours, and then increase both in coverage and in intensity in the afternoon and early evening in this cold, unstable air mass with WSW flow aloft. Blustery ridgeline winds out of the West will continue to ease overnight into the light to moderate range on Sunday, staying elevated the longest in the Mt Hood area. 

The good news is we have a steady supply of cold powdery snow arriving every 12 hours through Sunday night. The Olympics and northwest Cascades, including the Mt Baker and Mt Loop corridor, may be the winner snow-wise in this pattern, but all areas will see at least a few inches of snow. The caveat in this pattern is for areas further east of the Cascade crest where new snow amounts will tail off rapidly, including for areas near and further east of Icicle Creek/Tumwater Canyon. 

The snow shower pattern is less clear for Monday.  Strong high pressure sliding down the Canadian Rockies will start to drive modified arctic air into eastern WA and down through the Fraser River Valley while the same upper level low sits over our offshore waters. A broad brush light snow shower forecast has been applied, but some areas over the Olympics or west slopes of the Cascades could see more moderate snowfall depending on how this plays out. Light upslope snow showers and cloudier conditions along the east slopes of the Cascades seem like a good bet. 

Be prepared for cold temperatures.  Mid-mountain temperatures will struggle to reach 20F during the day, and you'll encounter lower teens and even single digits as you climb to higher elevations. Even colder weather will settle in early next week.  

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 Cloudy with light to occasionally moderate snow showers in the evening, then showers becoming more scattered late evening. Light to moderate ridgeline winds.
Sunday Cloudy with light to moderate snow showers. Light to moderate ridgeline winds.
Saturday Night Cloudy with light to occasionally moderate snow showers in the evening, then showers becoming more scattered late evening. Light to moderate ridgeline winds.
Sunday Cloudy with light to occasionally moderate snow showers. Light to moderate ridgeline winds.
Saturday Night Mostly cloudy with light to occasionally moderate snow showers in the evening, then showers becoming more scattered after midnight. Light to moderate ridgeline winds.
Sunday Cloudy with light to occasionally moderate snow showers. Light to moderate ridgeline winds.
Saturday Night Mostly cloudy with light to occasionally moderate snow showers in the evening, then showers becoming more scattered late evening. Light to moderate ridgeline winds.
Sunday Mostly cloudy with light scattered snow showers in the morning, then light to occasionally moderate snow showers in the afternoon. More showers Paradise/St Helens/White Pass area, fewer showers Crystal area. Light to moderate ridgeline winds.
Saturday Night Mostly cloudy with light to occasionally moderate snow showers in the evening, then showers becoming more scattered late evening. Moderate ridgeline W winds, light W winds at Pass level.
Sunday Cloudy with light scattered snow showers in the morning, then light to occasionally moderate snow showers in the afternoon. Light to moderate W ridgeline winds, variable winds at Pass level.
Saturday Night Mostly cloudy with light to occasionally moderate snow showers in the evening, then showers becoming more scattered late evening. Moderate ridgeline W winds, light W winds at Pass level.
Sunday Cloudy with light scattered snow showers in the morning, then light to occasionally moderate snow showers in the afternoon. Light to moderate W ridgeline winds, variable winds at Pass level.
Saturday Night Mostly cloudy with light to occasionally moderate snow showers in the evening especially near the Cascade crest, then showers becoming more scattered late evening. Light to moderate ridgeline winds.
Sunday Cloudy with light scattered snow showers in the morning, then light to occasionally moderate snow showers in the afternoon near the Cascade crest. Light to moderate ridgeline winds.
Saturday Night Mostly cloudy with light to occasionally moderate snow showers in the evening especially near the Cascade crest, then showers becoming more scattered late evening. Moderate ridgeline winds.
Sunday Mostly cloudy with light scattered snow showers in the morning, then light to occasionally moderate snow showers in the afternoon near the Cascade crest. Light to moderate ridgeline winds.
Saturday Night Mostly cloudy with light to occasionally moderate snow showers in the evening especially near the Cascade crest, then showers becoming more scattered late evening. Moderate ridgeline winds.
Sunday Mostly cloudy with light scattered snow showers in the morning, then light to occasionally moderate snow showers in the afternoon near the Cascade crest. Light to moderate ridgeline winds.
Saturday Night Mostly cloudy with light to occasionally moderate snow showers in the evening, then showers becoming more scattered late evening. Moderate ridgeline winds.
Sunday Cloudy with light scattered snow showers in the morning, then light to occasionally moderate snow showers in the afternoon. Showers heavier west-side of the mountain. Moderate ridgeline winds.

Issued: 1:56 PM PST Saturday, February 1, 2025

Precipitation (in)

Saturday Night Sunday Sunday Night Monday
4 pm - 4 am 4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge LT 0.25 0.25 - 0.50 LT 0.25 LT 0.10
Mt Baker Ski Area 0.25 0.25 0.25 LT 0.25
Mt. Loop - Barlow Pass 0.25 - 0.50 0.25 0.25 LT 0.10
Stevens Pass LT 0.25 LT 0.25 LT 0.10 LT 0.10
Snoqualmie Pass LT 0.25 LT 0.25 LT 0.25 LT 0.10
Crystal Mt LT 0.10 LT 0.10 LT 0.10 LT 0.10
Paradise LT 0.25 0.25 LT 0.25 LT 0.10
White Pass LT 0.25 0.25 LT 0.25 LT 0.10
Washington Pass LT 0.10 LT 0.10 LT 0.10 LT 0.10
Mission Ridge LT 0.10 LT 0.10 LT 0.10 LT 0.10
Salmon la Sac - Gallagher Head LT 0.10 LT 0.10 LT 0.10 LT 0.10
Tieton River - Darland Mt. LT 0.10 LT 0.10 LT 0.10 LT 0.10
Mt Hood Meadows LT 0.10 LT 0.25 LT 0.10 LT 0.10
Timberline LT 0.25 0.25 LT 0.25 LT 0.10
Hurricane Ridge Precipitation (in)
Saturday Night LT 0.25
Sunday 0.25 - 0.50
Sunday Night LT 0.25
Monday LT 0.10
Mt Baker Ski Area Precipitation (in)
Saturday Night 0.25
Sunday 0.25
Sunday Night 0.25
Monday LT 0.25
Mt. Loop - Barlow Pass Precipitation (in)
Saturday Night 0.25 - 0.50
Sunday 0.25
Sunday Night 0.25
Monday LT 0.10
Stevens Pass Precipitation (in)
Saturday Night LT 0.25
Sunday LT 0.25
Sunday Night LT 0.10
Monday LT 0.10
Snoqualmie Pass Precipitation (in)
Saturday Night LT 0.25
Sunday LT 0.25
Sunday Night LT 0.25
Monday LT 0.10
Crystal Mt Precipitation (in)
Saturday Night LT 0.10
Sunday LT 0.10
Sunday Night LT 0.10
Monday LT 0.10
Paradise Precipitation (in)
Saturday Night LT 0.25
Sunday 0.25
Sunday Night LT 0.25
Monday LT 0.10
White Pass Precipitation (in)
Saturday Night LT 0.25
Sunday 0.25
Sunday Night LT 0.25
Monday LT 0.10
Washington Pass Precipitation (in)
Saturday Night LT 0.10
Sunday LT 0.10
Sunday Night LT 0.10
Monday LT 0.10
Mission Ridge Precipitation (in)
Saturday Night LT 0.10
Sunday LT 0.10
Sunday Night LT 0.10
Monday LT 0.10
Salmon la Sac - Gallagher Head Precipitation (in)
Saturday Night LT 0.10
Sunday LT 0.10
Sunday Night LT 0.10
Monday LT 0.10
Tieton River - Darland Mt. Precipitation (in)
Saturday Night LT 0.10
Sunday LT 0.10
Sunday Night LT 0.10
Monday LT 0.10
Mt Hood Meadows Precipitation (in)
Saturday Night LT 0.10
Sunday LT 0.25
Sunday Night LT 0.10
Monday LT 0.10
Timberline Precipitation (in)
Saturday Night LT 0.25
Sunday 0.25
Sunday Night LT 0.25
Monday LT 0.10

Issued: 1:56 PM PST Saturday, February 1, 2025

Snow Level (ft)

Saturday Evening Saturday Night Sunday Morning Sunday Afternoon Sunday Evening Sunday Night Monday Morning Monday Afternoon
Olympics 500' 0 0 0 0 0 0 0
West North 500' 0 0 0 0 0 0 0
West Central 500' 0 0 0 0 0 0 0
West South 500' 0 0 500' 0 0 0 500'
Stevens Pass 500' 0 0 0 0 0 0 0
Snoqualmie Pass 500' 0 0 0 0 0 0 0
East North 500' 0 0 0 0 0 0 0
East Central 500' 0 0 0 0 0 0 0
East South 500' 0 0 0 0 0 0 0
Mt. Hood 1000' 0 500' 1500' 500' 0 0 500'
Olympics Elevation
Saturday Evening 500'
Saturday Night 0'
Sunday Morning 0'
Sunday Afternoon 0'
Sunday Evening 0'
Sunday Night 0'
Monday Morning 0'
Monday Afternoon 0'
West North Elevation
Saturday Evening 500'
Saturday Night 0'
Sunday Morning 0'
Sunday Afternoon 0'
Sunday Evening 0'
Sunday Night 0'
Monday Morning 0'
Monday Afternoon 0'
West Central Elevation
Saturday Evening 500'
Saturday Night 0'
Sunday Morning 0'
Sunday Afternoon 0'
Sunday Evening 0'
Sunday Night 0'
Monday Morning 0'
Monday Afternoon 0'
West South Elevation
Saturday Evening 500'
Saturday Night 0'
Sunday Morning 0'
Sunday Afternoon 500'
Sunday Evening 0'
Sunday Night 0'
Monday Morning 0'
Monday Afternoon 500'
Stevens Pass Elevation
Saturday Evening 500'
Saturday Night 0'
Sunday Morning 0'
Sunday Afternoon 0'
Sunday Evening 0'
Sunday Night 0'
Monday Morning 0'
Monday Afternoon 0'
Snoqualmie Pass Elevation
Saturday Evening 500'
Saturday Night 0'
Sunday Morning 0'
Sunday Afternoon 0'
Sunday Evening 0'
Sunday Night 0'
Monday Morning 0'
Monday Afternoon 0'
East North Elevation
Saturday Evening 500'
Saturday Night 0'
Sunday Morning 0'
Sunday Afternoon 0'
Sunday Evening 0'
Sunday Night 0'
Monday Morning 0'
Monday Afternoon 0'
East Central Elevation
Saturday Evening 500'
Saturday Night 0'
Sunday Morning 0'
Sunday Afternoon 0'
Sunday Evening 0'
Sunday Night 0'
Monday Morning 0'
Monday Afternoon 0'
East South Elevation
Saturday Evening 500'
Saturday Night 0'
Sunday Morning 0'
Sunday Afternoon 0'
Sunday Evening 0'
Sunday Night 0'
Monday Morning 0'
Monday Afternoon 0'
Mt. Hood Elevation
Saturday Evening 1000'
Saturday Night 0'
Sunday Morning 500'
Sunday Afternoon 1500'
Sunday Evening 500'
Sunday Night 0'
Monday Morning 0'
Monday Afternoon 500'

Issued: 1:56 PM PST Saturday, February 1, 2025

5000' Temperatures (°F)

Saturday Night Sunday
Max / Min Max / Min
Olympics 15 / 13 16 / 12
West North 17 / 13 16 / 12
West Central 19 / 14 16 / 12
West South 19 / 14 18 / 13
Stevens Pass 18 / 15 18 / 12
Snoqualmie Pass 18 / 15 16 / 13
East North 16 / 9 16 / 8
East Central 16 / 12 17 / 12
East South 18 / 11 19 / 13
Mt. Hood 24 / 18 23 / 18
Olympics 5000' Temperature Forecast
(Max / Min)
Saturday Night 15 / 13
Sunday 16 / 12
West North 5000' Temperature Forecast
(Max / Min)
Saturday Night 17 / 13
Sunday 16 / 12
West Central 5000' Temperature Forecast
(Max / Min)
Saturday Night 19 / 14
Sunday 16 / 12
West South 5000' Temperature Forecast
(Max / Min)
Saturday Night 19 / 14
Sunday 18 / 13
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Saturday Night 18 / 15
Sunday 18 / 12
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Saturday Night 18 / 15
Sunday 16 / 13
East North 5000' Temperature Forecast
(Max / Min)
Saturday Night 16 / 9
Sunday 16 / 8
East Central 5000' Temperature Forecast
(Max / Min)
Saturday Night 16 / 12
Sunday 17 / 12
East South 5000' Temperature Forecast
(Max / Min)
Saturday Night 18 / 11
Sunday 19 / 13
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Saturday Night 24 / 18
Sunday 23 / 18

Issued: 1:56 PM PST Saturday, February 1, 2025

Ridgeline Winds (mph)

Saturday Evening Saturday Night Sunday Morning Sunday Afternoon
Olympics WSW 10-20 SW 5-15 WSW 10-20 SW 10-20
West North WSW 10-20 SW 5-15 SSW 10-20 SW 10-20
West Central WSW 10-20 SW 5-15 SW 10-20 SW 10-20
West South WSW 10-20 WSW 10-20 WSW 10-20 SW 10-20
Stevens Pass W 10-20 W 5-15 W 5-15 W 10-20
Snoqualmie Pass WSW 15-25 W 10-20 SW 5-15 SW 5-15
East North WSW 10-20 WSW 5-15 SW 0-10 SW 5-15
East Central W 20-30 W 15-25 W 10-20 WSW 5-15
East South W 15-25 W 10-20 WSW 10-20 WSW 5-15
Mt. Hood WSW 20-30 W 15-25 W 15-25 W 15-25
Olympics Ridgeline Winds (mph)
Saturday Evening WSW 10-20
Saturday Night SW 5-15
Sunday Morning WSW 10-20
Sunday Afternoon SW 10-20
West North Ridgeline Winds (mph)
Saturday Evening WSW 10-20
Saturday Night SW 5-15
Sunday Morning SSW 10-20
Sunday Afternoon SW 10-20
West Central Ridgeline Winds (mph)
Saturday Evening WSW 10-20
Saturday Night SW 5-15
Sunday Morning SW 10-20
Sunday Afternoon SW 10-20
West South Ridgeline Winds (mph)
Saturday Evening WSW 10-20
Saturday Night WSW 10-20
Sunday Morning WSW 10-20
Sunday Afternoon SW 10-20
Stevens Pass Ridgeline Winds (mph)
Saturday Evening W 10-20
Saturday Night W 5-15
Sunday Morning W 5-15
Sunday Afternoon W 10-20
Snoqualmie Pass Ridgeline Winds (mph)
Saturday Evening WSW 15-25
Saturday Night W 10-20
Sunday Morning SW 5-15
Sunday Afternoon SW 5-15
East North Ridgeline Winds (mph)
Saturday Evening WSW 10-20
Saturday Night WSW 5-15
Sunday Morning SW 0-10
Sunday Afternoon SW 5-15
East Central Ridgeline Winds (mph)
Saturday Evening W 20-30
Saturday Night W 15-25
Sunday Morning W 10-20
Sunday Afternoon WSW 5-15
East South Ridgeline Winds (mph)
Saturday Evening W 15-25
Saturday Night W 10-20
Sunday Morning WSW 10-20
Sunday Afternoon WSW 5-15
Mt. Hood Ridgeline Winds (mph)
Saturday Evening WSW 20-30
Saturday Night W 15-25
Sunday Morning W 15-25
Sunday Afternoon W 15-25

Issued: 1:56 PM PST Saturday, February 1, 2025

Extended Weather Synopsis

There's not a lot of confidence in how the snow shower pattern will play out next week, only that cold weather will continue. Plan for some of the coldest temperatures of the season and at least a chance of snow showers each day.  

Extended Snow Level (ft)

Monday Night* Tuesday * Tuesday Night* Wednesday *
West North 0 0 0 0
Snoqualmie Pass 0 0 0 0
Mt. Hood 0 0 0 500'
West North Elevation
Monday Night* 0'
Tuesday * 0'
Tuesday Night* 0'
Wednesday * 0'
Snoqualmie Pass Elevation
Monday Night* 0'
Tuesday * 0'
Tuesday Night* 0'
Wednesday * 0'
Mt. Hood Elevation
Monday Night* 0'
Tuesday * 0'
Tuesday Night* 0'
Wednesday * 500'

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

Previous forecast from Feb 1, 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’.