Issued: 7:05 AM PST Sunday, February 2, 2025
by Dennis D'Amico

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

Weather Synopsis

We'll see a near repeat of Saturday as a cold upper low rotates snow showers inland today.  Showers will become more widespread and will feature some pulses of higher snowfall rates in the afternoon and early evening thanks to a cold unstable air mass, daytime heating, and a weak upper level disturbance.  Most areas should see a few inches of low density snow before sunset, with the Olympics, closer to the low, once again serving up a more moderate serving of new snow.  Snowfall amounts will taper quickly the further east of the Cascade crest.  

The upper low will slowly sink south tonight and Monday and colder air from the interior of British Columbia will start to seep out of the Fraser Valley and along the east slopes of the Cascades.  We may see a more focused area of snow showers for the western Cascades of Whatcom and Skagit Counties tonight as onshore flow combines with Fraser Outflow, but otherwise snow showers will become isolated overnight.  

On Monday, expect slightly chillier temperatures with widespread teens for daytime highs at mid-elevations and single digits or colder at upper elevations.  We'll see more pop-up daytime light showers in the afternoon, except slightly cloudier and steadier light snow along the east slopes of the Cascades with light upslope flow. 

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
Sunday Cloudy with light to occasionally moderate snow showers. Light to moderate ridgeline winds.
Sunday Night Cloudy with light to occasionally moderate snow showers. Light ridgeline winds.
Sunday Cloudy with scattered light snow showers in the morning, then light to occasionally moderate snow showers in the afternoon. Light to moderate ridgeline winds.
Sunday Night Cloudy with light to occasionally moderate snow showers. Light to moderate ridgeline winds.
Sunday Cloudy with scattered light snow showers in the morning, then light to occasionally moderate snow showers in the afternoon. Light to moderate ridgeline winds.
Sunday Night Cloudy with light to occasionally moderate snow showers. Light ridgeline winds.
Sunday Mostly cloudy with scattered light snow showers in the morning, then light to occasionally moderate snow showers in the afternoon. Moderate ridgeline winds.
Sunday Night Cloudy with light to occasionally moderate snow showers in the evening, then mostly cloudy with scattered light showers late evening. Light to moderate ridgeline winds.
Sunday Mostly cloudy with scattered light snow showers in the morning, then light to occasionally moderate snow showers in the afternoon. Light to moderate W ridgeline winds, light W winds at Pass level.
Sunday Night Cloudy with light to occasionally moderate snow showers in the evening, then mostly cloudy with scattered light showers late evening. Light to moderate W ridgeline winds, light E winds at Pass level.
Sunday Mostly cloudy with scattered light snow showers in the morning, then light to occasionally moderate snow showers in the afternoon. Light to moderate W ridgeline winds, light W winds at Pass level.
Sunday Night Cloudy with light to occasionally moderate snow showers in the evening, then mostly cloudy with scattered light showers late evening. Light to moderate W ridgeline winds, light E winds at Pass level.
Sunday Mostly cloudy with isolated light snow showers in the morning near the Cascade crest and partly sunny further east. Light to occasionally moderate snow showers in the afternoon, showers more widespread near the Cascade crest. Light ridgeline winds.
Sunday Night Cloudy with light to occasionally moderate snow showers in the evening, then mostly cloudy with scattered light showers late evening. Light to moderate ridgeline winds.
Sunday Mostly cloudy with isolated light snow showers in the morning near the Cascade crest and partly sunny further east. Light to occasionally moderate snow showers in the afternoon, showers more widespread near the Cascade crest. Light to moderate ridgeline winds.
Sunday Night Cloudy with light to occasionally moderate snow showers in the evening, then mostly cloudy with scattered light showers late evening. Light to moderate ridgeline winds.
Sunday Mostly cloudy with isolated light snow showers in the morning near the Cascade crest and partly sunny further east. Light to occasionally moderate snow showers in the afternoon, showers more widespread near the Cascade crest. Moderate ridgeline winds.
Sunday Night Cloudy with light to occasionally moderate snow showers in the evening, then mostly cloudy with scattered light showers late evening. Light to moderate ridgeline winds.
Sunday Mostly cloudy with isolated light snow showers in the morning, then light to occasionally moderate snow showers in the afternoon. Moderate to occasionally strong ridgeline winds.
Sunday Night Cloudy with light to occasionally moderate snow showers in the evening, then mostly cloudy with scattered light showers late evening. Moderate ridgeline winds.

Precipitation (in)

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

Snow Level (ft)

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

5000' Temperatures (°F)

Sunday Sunday Night
Max / Min Max / Min
Olympics 16 / 12 13 / 7
West North 16 / 12 15 / 10
West Central 17 / 15 17 / 10
West South 19 / 16 16 / 11
Stevens Pass 19 / 14 15 / 11
Snoqualmie Pass 17 / 15 15 / 11
East North 17 / 8 14 / 3
East Central 19 / 14 14 / 9
East South 20 / 16 13 / 8
Mt. Hood 22 / 19 19 / 15
Olympics 5000' Temperature Forecast
(Max / Min)
Sunday 16 / 12
Sunday Night 13 / 7
West North 5000' Temperature Forecast
(Max / Min)
Sunday 16 / 12
Sunday Night 15 / 10
West Central 5000' Temperature Forecast
(Max / Min)
Sunday 17 / 15
Sunday Night 17 / 10
West South 5000' Temperature Forecast
(Max / Min)
Sunday 19 / 16
Sunday Night 16 / 11
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Sunday 19 / 14
Sunday Night 15 / 11
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Sunday 17 / 15
Sunday Night 15 / 11
East North 5000' Temperature Forecast
(Max / Min)
Sunday 17 / 8
Sunday Night 14 / 3
East Central 5000' Temperature Forecast
(Max / Min)
Sunday 19 / 14
Sunday Night 14 / 9
East South 5000' Temperature Forecast
(Max / Min)
Sunday 20 / 16
Sunday Night 13 / 8
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Sunday 22 / 19
Sunday Night 19 / 15

Ridgeline Winds (mph)

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

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

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’.