Issued: 2:11 PM PST Monday, December 1, 2025
by Robert Hahn

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

Weather Synopsis

A shortwave disturbance approaches the region on NW flow Monday afternoon. It will bring several hours of moderate rain and snow during the evening hours, before some post-frontal shower activity lingers into Tuesday. The northern half of the Cascades will be favored initially, but the focus shifts towards the central Cascades overnight as convergence banding sets up somewhere between the Mountain Loop and Snoqualmie Pass. This could bring locally more intense snowfall to elevations above 3500-4000 ft. At the same time, WNW winds should increase into the moderate range, peaking with the frontal passage late Monday night. Middle and upper elevations across the west slopes of the Cascades can generally expect 1-5" of new snow by the time flow switches NNW Tuesday afternoon. The system arrives on a subtle cooling trend.

The offshore high pressure maintains dry northerly flow Tuesday night through Wednesday morning. A weak disturbance should brush the northern portions of the forecast region on Wednesday afternoon, bringing some very light snow with snow levels around 3000 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
Monday Night Several hours of light to moderate rain and snow in the evening, tapering to isolated showers overnight.
Tuesday A few flurries early in the day, then becoming partly cloudy.
Monday Night Several hours of moderate rain and snow in the evening tapering to light showers overnight.
Tuesday Isolated snow showers early, then becoming partly cloudy.
Monday Night Several hours of moderate rain and snow in the evening, followed by light to moderate showers with convergence banding.
Tuesday Scattered rain and snow showers becoming isolated with sun breaks in the afternoon.
Monday Night Several hours of moderate rain and higher elevation snow in the late evening, followed by light showers.
Tuesday Scattered rain and snow showers becoming isolated with sun breaks in the afternoon.
Monday Night Several hours of moderate rain and snow in the evening, followed by light to moderate showers with convergence banding. Light to moderate ridgeline and mostly light W wind at the Pass.
Tuesday Light rain and snow showers, along with convergence banding, in the morning. Isolated showers or sprinkles with sun breaks in the afternoon. Decreasing mostly light ridgeline and W wind at the Pass.
Monday Night Several hours of moderate rain and snow in the evening, followed by light to moderate showers with convergence banding. Moderate ridgeline and light to moderate W wind at the Pass.
Tuesday Light rain and snow showers, along with convergence banding, in the morning. Isolated showers or sprinkles with sun breaks in the afternoon. Decreasing mostly light ridgeline and W wind at the Pass.
Monday Night Periods of light rain and snow. Light to moderate ridgeline winds peak overnight.
Tuesday A few snow showers near the Cascade Crest in the morning, then becoming partly to mostly sunny. Light to moderate ridgeline winds early, becoming light.
Monday Night Periods of increasing light rain and snow. Light to moderate ridgeline winds peak overnight.
Tuesday A few snow showers near the Cascade Crest in the morning, then becoming partly to mostly sunny. Light to moderate ridgeline winds early, becoming light.
Monday Night Mostly cloudy with a few sprinkles or snow flurries. Light to moderate ridgeline winds peak overnight.
Tuesday Isolated snow showers near the Cascade Crest in the morning, then becoming partly to mostly sunny. Light to moderate ridgeline winds early, becoming light.
Monday Night Mostly cloudy in the evening, with light rain and high-elevation snow overnight. Moderate ridgeline winds with strong gusts.
Tuesday Decreasing scattered rain and snow showers becoming isolated with sun breaks in the afternoon. Decreasing light to moderate ridgeline winds.

Issued: 2:11 PM PST Monday, December 1, 2025

Precipitation (in)

Monday Night Tuesday Tuesday Night Wednesday
4 pm - 4 am 4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge LT 0.10 LT 0.10 0 LT 0.10
Mt Baker Ski Area 0.25 0 0 LT 0.10
Mt. Loop - Barlow Pass 0.25 - 0.50 LT 0.10 0 LT 0.10
Stevens Pass 0.25 - 0.50 LT 0.10 0 0
Snoqualmie Pass 0.25 LT 0.10 0 0
Crystal Mt LT 0.10 LT 0.25 0 0
Paradise LT 0.10 LT 0.10 0 0
White Pass LT 0.10 LT 0.10 0 0
Washington Pass LT 0.10 0 0 0
Mission Ridge 0 0 0 0
Salmon la Sac - Gallagher Head LT 0.25 LT 0.25 0 0
Tieton River - Darland Mt. 0 LT 0.10 0 0
Mt Hood Meadows LT 0.10 LT 0.10 0 0
Timberline LT 0.10 LT 0.10 0 0
Hurricane Ridge Precipitation (in)
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night 0
Wednesday LT 0.10
Mt Baker Ski Area Precipitation (in)
Monday Night 0.25
Tuesday 0
Tuesday Night 0
Wednesday LT 0.10
Mt. Loop - Barlow Pass Precipitation (in)
Monday Night 0.25 - 0.50
Tuesday LT 0.10
Tuesday Night 0
Wednesday LT 0.10
Stevens Pass Precipitation (in)
Monday Night 0.25 - 0.50
Tuesday LT 0.10
Tuesday Night 0
Wednesday 0
Snoqualmie Pass Precipitation (in)
Monday Night 0.25
Tuesday LT 0.10
Tuesday Night 0
Wednesday 0
Crystal Mt Precipitation (in)
Monday Night LT 0.10
Tuesday LT 0.25
Tuesday Night 0
Wednesday 0
Paradise Precipitation (in)
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night 0
Wednesday 0
White Pass Precipitation (in)
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night 0
Wednesday 0
Washington Pass Precipitation (in)
Monday Night LT 0.10
Tuesday 0
Tuesday Night 0
Wednesday 0
Mission Ridge Precipitation (in)
Monday Night 0
Tuesday 0
Tuesday Night 0
Wednesday 0
Salmon la Sac - Gallagher Head Precipitation (in)
Monday Night LT 0.25
Tuesday LT 0.25
Tuesday Night 0
Wednesday 0
Tieton River - Darland Mt. Precipitation (in)
Monday Night 0
Tuesday LT 0.10
Tuesday Night 0
Wednesday 0
Mt Hood Meadows Precipitation (in)
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night 0
Wednesday 0
Timberline Precipitation (in)
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night 0
Wednesday 0

Issued: 2:11 PM PST Monday, December 1, 2025

Snow Level (ft)

Monday Evening Monday Night Tuesday Morning Tuesday Afternoon Tuesday Evening Tuesday Night Wednesday Morning Wednesday Afternoon
Olympics 6500' 5000' 4000' 3500' 4500' 5000' 4500' 3500'
West North 3500' 3500' 3500' 3500' 3500' 2500' 2000' 3000'
West Central 3500' 3500' 3500' 3500' 3500' 2500' 2500' 3000'
West South 4000' 5000' 4500' 4000' 4000' 3000' 3500' 4500'
Stevens Pass 4000' 3500' 3500' 3500' 3500' 2500' 2000' 4000'
Snoqualmie Pass 4000' 4000' 4000' 3500' 4000' 3000' 2500' 4000'
East North 4000' 4000' 3500' 3500' 3000' 2000' 2000' 4000'
East Central 5000' 4000' 4000' 4500' 3500' 2500' 2500' 4000'
East South 6000' 5500' 4500' 4500' 4000' 2500' 2500' 5000'
Mt. Hood 9000' 7000' 4500' 4000' 4500' 4000' 4000' 7000'
Olympics Elevation
Monday Evening 6500'
Monday Night 5000'
Tuesday Morning 4000'
Tuesday Afternoon 3500'
Tuesday Evening 4500'
Tuesday Night 5000'
Wednesday Morning 4500'
Wednesday Afternoon 3500'
West North Elevation
Monday Evening 3500'
Monday Night 3500'
Tuesday Morning 3500'
Tuesday Afternoon 3500'
Tuesday Evening 3500'
Tuesday Night 2500'
Wednesday Morning 2000'
Wednesday Afternoon 3000'
West Central Elevation
Monday Evening 3500'
Monday Night 3500'
Tuesday Morning 3500'
Tuesday Afternoon 3500'
Tuesday Evening 3500'
Tuesday Night 2500'
Wednesday Morning 2500'
Wednesday Afternoon 3000'
West South Elevation
Monday Evening 4000'
Monday Night 5000'
Tuesday Morning 4500'
Tuesday Afternoon 4000'
Tuesday Evening 4000'
Tuesday Night 3000'
Wednesday Morning 3500'
Wednesday Afternoon 4500'
Stevens Pass Elevation
Monday Evening 4000'
Monday Night 3500'
Tuesday Morning 3500'
Tuesday Afternoon 3500'
Tuesday Evening 3500'
Tuesday Night 2500'
Wednesday Morning 2000'
Wednesday Afternoon 4000'
Snoqualmie Pass Elevation
Monday Evening 4000'
Monday Night 4000'
Tuesday Morning 4000'
Tuesday Afternoon 3500'
Tuesday Evening 4000'
Tuesday Night 3000'
Wednesday Morning 2500'
Wednesday Afternoon 4000'
East North Elevation
Monday Evening 4000'
Monday Night 4000'
Tuesday Morning 3500'
Tuesday Afternoon 3500'
Tuesday Evening 3000'
Tuesday Night 2000'
Wednesday Morning 2000'
Wednesday Afternoon 4000'
East Central Elevation
Monday Evening 5000'
Monday Night 4000'
Tuesday Morning 4000'
Tuesday Afternoon 4500'
Tuesday Evening 3500'
Tuesday Night 2500'
Wednesday Morning 2500'
Wednesday Afternoon 4000'
East South Elevation
Monday Evening 6000'
Monday Night 5500'
Tuesday Morning 4500'
Tuesday Afternoon 4500'
Tuesday Evening 4000'
Tuesday Night 2500'
Wednesday Morning 2500'
Wednesday Afternoon 5000'
Mt. Hood Elevation
Monday Evening 9000'
Monday Night 7000'
Tuesday Morning 4500'
Tuesday Afternoon 4000'
Tuesday Evening 4500'
Tuesday Night 4000'
Wednesday Morning 4000'
Wednesday Afternoon 7000'

Issued: 2:11 PM PST Monday, December 1, 2025

5000' Temperatures (°F)

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

Issued: 2:11 PM PST Monday, December 1, 2025

Ridgeline Winds (mph)

Monday Evening Monday Night Tuesday Morning Tuesday Afternoon
Olympics W 10-20 WNW 5-15 NNW 0-10 NNW 0-10
West North WSW 5-15 WNW 5-15 VAR 0-10 NE 0-10
West Central WNW 5-15 WNW 5-15 NNW 5-15 NW 0-10
West South WNW 10-20 WNW 15-25 W 5-15 NNW 0-10
Stevens Pass W 5-15 W 10-20 WNW 5-15 WNW 0-10
Snoqualmie Pass WNW 10-20 WNW 15-25 WNW 10-20 NW 5-15
East North W 10-20 WNW 10-20 WNW 10-20 NNW 5-15
East Central WNW 15-25 WNW 15-25 NW 10-20 NW 5-15
East South WNW 15-25 WNW 15-25 WNW 10-20 NW 5-15
Mt. Hood NW 15-25 W 20-30 WNW 15-25 NW 10-20
Olympics Ridgeline Winds (mph)
Monday Evening W 10-20
Monday Night WNW 5-15
Tuesday Morning NNW 0-10
Tuesday Afternoon NNW 0-10
West North Ridgeline Winds (mph)
Monday Evening WSW 5-15
Monday Night WNW 5-15
Tuesday Morning VAR 0-10
Tuesday Afternoon NE 0-10
West Central Ridgeline Winds (mph)
Monday Evening WNW 5-15
Monday Night WNW 5-15
Tuesday Morning NNW 5-15
Tuesday Afternoon NW 0-10
West South Ridgeline Winds (mph)
Monday Evening WNW 10-20
Monday Night WNW 15-25
Tuesday Morning W 5-15
Tuesday Afternoon NNW 0-10
Stevens Pass Ridgeline Winds (mph)
Monday Evening W 5-15
Monday Night W 10-20
Tuesday Morning WNW 5-15
Tuesday Afternoon WNW 0-10
Snoqualmie Pass Ridgeline Winds (mph)
Monday Evening WNW 10-20
Monday Night WNW 15-25
Tuesday Morning WNW 10-20
Tuesday Afternoon NW 5-15
East North Ridgeline Winds (mph)
Monday Evening W 10-20
Monday Night WNW 10-20
Tuesday Morning WNW 10-20
Tuesday Afternoon NNW 5-15
East Central Ridgeline Winds (mph)
Monday Evening WNW 15-25
Monday Night WNW 15-25
Tuesday Morning NW 10-20
Tuesday Afternoon NW 5-15
East South Ridgeline Winds (mph)
Monday Evening WNW 15-25
Monday Night WNW 15-25
Tuesday Morning WNW 10-20
Tuesday Afternoon NW 5-15
Mt. Hood Ridgeline Winds (mph)
Monday Evening NW 15-25
Monday Night W 20-30
Tuesday Morning WNW 15-25
Tuesday Afternoon NW 10-20

Issued: 2:11 PM PST Monday, December 1, 2025

Extended Weather Synopsis

The moisture feed returns to the Pacific Northwest, but the timing and amount of moisture remain difficult to determine. Generally, light precipitation is expected Wednesday night through Thursday, with the potential for moderate to heavy rainfall Thursday and Friday, along with a gradual warming trend.

Extended Snow Level (ft)

Wednesday Night Thursday Thursday Night Friday
West North 3000' 3500' 5000' 5000'
Snoqualmie Pass 3500' 4500' 6000' 6500'
Mt. Hood 5500' 6500' 7500' 7500'
West North Elevation
Wednesday Night 3000'
Thursday 3500'
Thursday Night 5000'
Friday 5000'
Snoqualmie Pass Elevation
Wednesday Night 3500'
Thursday 4500'
Thursday Night 6000'
Friday 6500'
Mt. Hood Elevation
Wednesday Night 5500'
Thursday 6500'
Thursday Night 7500'
Friday 7500'

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

Previous forecast from Nov 30, 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’.