Issued: 7:03 AM PST Tuesday, December 9, 2025
by Sam Clairmont

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

Weather Synopsis

A powerful atmospheric river drenched western Washington overnight, dropping several inches of rain before shifting the bulk of the moisture southward. The moisture shift has allowed a cool area to enter the region, pushing snow levels down to 3500–4000 feet. Residual moisture will support light snowfall today, but accumulations will remain limited—generally a few inches above 4,000 feet. Washington Pass stands out as the exception, already recording 8 inches of new snow.

East of the Cascade crest and across northern zones, a slight drying trend is expected today. Elsewhere, periods of isolated rain and snow will persist. Winds will gradually ease while remaining westerly, though brief periods of easterly flow may develop at Snoqualmie and Stevens Pass.

This break in precipitation will be short-lived. Tonight, the moisture plume is forecast to lift north again, refocusing on the central Cascades. Another round of heavy rain and rising temperatures is expected, with precipitation totals similar to last night. Snow levels will climb to comparable elevations as well, except near Mount Hood, where snow levels may rise to around 10,000 feet. Winds will shift to the southwest with the returning moisture, strengthening to moderate or strong at ridge tops.

Warm temperatures and periods of heavy precipitation are expected to continue into Tuesday.

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
Tuesday Light snow in the early morning, and tapering off. Cloudy. Cool temperatures, warming into the afternoon.
Tuesday Night Rain and mountain snow, with continual warming through the night.
Tuesday Cloudy. Cool temperatures, warming in the afternoon.
Tuesday Night Rain and mountain snow, with continual warming through the night.
Tuesday Light snow in the early morning, and tapering off. Cloudy. Cool temperatures, warming into the afternoon.
Tuesday Night Heavy rain and mountain snow. Warming temperatures through the night.
Tuesday Snow in the early morning, tapering off quickly. Cloudy. Cool temperatures, warming into the afternoon.
Tuesday Night Heavy rain and mountain snow. Warming temperatures through the night.
Tuesday Brief periods of rain and mountain snow, tapering off. Warming temperatures through the day. Light ridgeline wind, from the west at the Pass.
Tuesday Night Heavy rain and mountain snow. Warming temperatures through the night. Moderate ridgeline wind, becoming strong, from the west at the Pass.
Tuesday Brief periods of rain and mountain snow, tapering off. Warming temperatures through the day. Light ridgeline wind, from the west at the Pass.
Tuesday Night Heavy rain and mountain snow. Warming temperatures through the night. Moderate ridgeline wind, becoming strong, from the west at the Pass.
Tuesday Cloudy. Cool temperatures, warming slightly in the afternoon.
Tuesday Night Heavy rain and mountain snow. Warming temperatures.
Tuesday Brief periods of isolated rain and mountain snow, becoming mostly cloudy in the afternoon.
Tuesday Night Heavy rain and mountain snow. Warming temperatures.
Tuesday Brief periods of isolated rain and mountain snow, becoming mostly cloudy in the afternoon.
Tuesday Night Heavy rain and mountain snow. Warming temperatures.
Tuesday Heavy rain. Strong westerly wind at ridgeline.
Tuesday Night Heavy rain and warming temperatures. Strong to extreme ridgeline wind from the WSW.

Issued: 7:03 AM PST Tuesday, December 9, 2025

Precipitation (in)

Tuesday Tuesday Night Wednesday
4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge LT 0.10 1.00 - 1.50 1.00
Mt Baker Ski Area 0 1.00 - 1.50 1.00
Mt. Loop - Barlow Pass 0 2.00 2.50
Stevens Pass LT 0.10 2.50 2.50 - 3.50
Snoqualmie Pass LT 0.10 2.50 2.50 - 3.50
Crystal Mt LT 0.10 1.00 0.75
Paradise 0.50 4.00 - 5.00 3.50 - 4.50
White Pass 0.25 - 0.50 2.00 1.00
Washington Pass 0 1.00 - 1.50 1.50
Mission Ridge LT 0.10 1.00 0.75
Salmon la Sac - Gallagher Head LT 0.10 1.50 - 2.00 1.00 - 1.50
Tieton River - Darland Mt. 0.25 0.75 -1.00 0.25 - 0.50
Mt Hood Meadows 2.00 3.50 - 4.50 0.75
Timberline 2.00 3.50 - 4.50 0.75
Hurricane Ridge Precipitation (in)
Tuesday LT 0.10
Tuesday Night 1.00 - 1.50
Wednesday 1.00
Mt Baker Ski Area Precipitation (in)
Tuesday 0
Tuesday Night 1.00 - 1.50
Wednesday 1.00
Mt. Loop - Barlow Pass Precipitation (in)
Tuesday 0
Tuesday Night 2.00
Wednesday 2.50
Stevens Pass Precipitation (in)
Tuesday LT 0.10
Tuesday Night 2.50
Wednesday 2.50 - 3.50
Snoqualmie Pass Precipitation (in)
Tuesday LT 0.10
Tuesday Night 2.50
Wednesday 2.50 - 3.50
Crystal Mt Precipitation (in)
Tuesday LT 0.10
Tuesday Night 1.00
Wednesday 0.75
Paradise Precipitation (in)
Tuesday 0.50
Tuesday Night 4.00 - 5.00
Wednesday 3.50 - 4.50
White Pass Precipitation (in)
Tuesday 0.25 - 0.50
Tuesday Night 2.00
Wednesday 1.00
Washington Pass Precipitation (in)
Tuesday 0
Tuesday Night 1.00 - 1.50
Wednesday 1.50
Mission Ridge Precipitation (in)
Tuesday LT 0.10
Tuesday Night 1.00
Wednesday 0.75
Salmon la Sac - Gallagher Head Precipitation (in)
Tuesday LT 0.10
Tuesday Night 1.50 - 2.00
Wednesday 1.00 - 1.50
Tieton River - Darland Mt. Precipitation (in)
Tuesday 0.25
Tuesday Night 0.75 -1.00
Wednesday 0.25 - 0.50
Mt Hood Meadows Precipitation (in)
Tuesday 2.00
Tuesday Night 3.50 - 4.50
Wednesday 0.75
Timberline Precipitation (in)
Tuesday 2.00
Tuesday Night 3.50 - 4.50
Wednesday 0.75

Issued: 7:03 AM PST Tuesday, December 9, 2025

Snow Level (ft)

Tuesday Morning Tuesday Afternoon Tuesday Evening Tuesday Night Wednesday Morning Wednesday Afternoon
Olympics 4000' 4000' 5500' 9000' 9000' 9000'
West North 4500' 5000' 4500' 6500' 7500' 7000'
West Central 5000' 5000' 4500' 8000' 8000' 8000'
West South 4000' 4500' 6500' 9000' 9000' 9000'
Stevens Pass 4000' 4000' 4000' 8000' 8500' 8500'
Snoqualmie Pass 4000' 4000' 5500' 8000' 8500' 9000'
East North 4500' 5000' 4000' 5000' 7000' 6500'
East Central 4000' 4000' 4500' 8000' 9000' 8500'
East South 4500' 4500' 7000' 9000' 9500' 9000'
Mt. Hood 7500' 8000' 9000' 10000' 9000' 8000'
Olympics Elevation
Tuesday Morning 4000'
Tuesday Afternoon 4000'
Tuesday Evening 5500'
Tuesday Night 9000'
Wednesday Morning 9000'
Wednesday Afternoon 9000'
West North Elevation
Tuesday Morning 4500'
Tuesday Afternoon 5000'
Tuesday Evening 4500'
Tuesday Night 6500'
Wednesday Morning 7500'
Wednesday Afternoon 7000'
West Central Elevation
Tuesday Morning 5000'
Tuesday Afternoon 5000'
Tuesday Evening 4500'
Tuesday Night 8000'
Wednesday Morning 8000'
Wednesday Afternoon 8000'
West South Elevation
Tuesday Morning 4000'
Tuesday Afternoon 4500'
Tuesday Evening 6500'
Tuesday Night 9000'
Wednesday Morning 9000'
Wednesday Afternoon 9000'
Stevens Pass Elevation
Tuesday Morning 4000'
Tuesday Afternoon 4000'
Tuesday Evening 4000'
Tuesday Night 8000'
Wednesday Morning 8500'
Wednesday Afternoon 8500'
Snoqualmie Pass Elevation
Tuesday Morning 4000'
Tuesday Afternoon 4000'
Tuesday Evening 5500'
Tuesday Night 8000'
Wednesday Morning 8500'
Wednesday Afternoon 9000'
East North Elevation
Tuesday Morning 4500'
Tuesday Afternoon 5000'
Tuesday Evening 4000'
Tuesday Night 5000'
Wednesday Morning 7000'
Wednesday Afternoon 6500'
East Central Elevation
Tuesday Morning 4000'
Tuesday Afternoon 4000'
Tuesday Evening 4500'
Tuesday Night 8000'
Wednesday Morning 9000'
Wednesday Afternoon 8500'
East South Elevation
Tuesday Morning 4500'
Tuesday Afternoon 4500'
Tuesday Evening 7000'
Tuesday Night 9000'
Wednesday Morning 9500'
Wednesday Afternoon 9000'
Mt. Hood Elevation
Tuesday Morning 7500'
Tuesday Afternoon 8000'
Tuesday Evening 9000'
Tuesday Night 10000'
Wednesday Morning 9000'
Wednesday Afternoon 8000'

Issued: 7:03 AM PST Tuesday, December 9, 2025

5000' Temperatures (°F)

Tuesday Tuesday Night
Max / Min Max / Min
Olympics 34 / 26 39 / 34
West North 29 / 27 38 / 28
West Central 31 / 26 39 / 29
West South 34 / 29 40 / 34
Stevens Pass 33 / 26 39 / 29
Snoqualmie Pass 32 / 26 40 / 30
East North 32 / 26 36 / 27
East Central 33 / 26 39 / 29
East South 34 / 29 41 / 31
Mt. Hood 41 / 35 45 / 42
Olympics 5000' Temperature Forecast
(Max / Min)
Tuesday 34 / 26
Tuesday Night 39 / 34
West North 5000' Temperature Forecast
(Max / Min)
Tuesday 29 / 27
Tuesday Night 38 / 28
West Central 5000' Temperature Forecast
(Max / Min)
Tuesday 31 / 26
Tuesday Night 39 / 29
West South 5000' Temperature Forecast
(Max / Min)
Tuesday 34 / 29
Tuesday Night 40 / 34
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Tuesday 33 / 26
Tuesday Night 39 / 29
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Tuesday 32 / 26
Tuesday Night 40 / 30
East North 5000' Temperature Forecast
(Max / Min)
Tuesday 32 / 26
Tuesday Night 36 / 27
East Central 5000' Temperature Forecast
(Max / Min)
Tuesday 33 / 26
Tuesday Night 39 / 29
East South 5000' Temperature Forecast
(Max / Min)
Tuesday 34 / 29
Tuesday Night 41 / 31
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Tuesday 41 / 35
Tuesday Night 45 / 42

Issued: 7:03 AM PST Tuesday, December 9, 2025

Ridgeline Winds (mph)

Tuesday Morning Tuesday Afternoon Tuesday Evening Tuesday Night
Olympics W 0-10 SSW 0-10 SW 15-25 WSW 25-35
West North WSW 5-15 SW 0-10 S 5-15 SW 15-25
West Central WNW 5-15 W 0-10 SSW 10-20 SW 25-35
West South W 5-15 SSW 0-10 WSW 10-20 WSW 15-25
Stevens Pass W 10-20 W 0-10 SW 5-15 WSW 15-25
Snoqualmie Pass WNW 10-20 SW 5-15 WSW 10-20 WSW 25-35
East North W 5-15 SSW 5-15 S 0-10 SW 5-15
East Central WNW 25-35 SW 5-15 SW 5-15 WSW 30-40
East South WNW 15-25 W 0-10 SW 10-20 WSW 20-30
Mt. Hood W 20-30 WSW 25-35 W 30-40 WSW 40-55
Olympics Ridgeline Winds (mph)
Tuesday Morning W 0-10
Tuesday Afternoon SSW 0-10
Tuesday Evening SW 15-25
Tuesday Night WSW 25-35
West North Ridgeline Winds (mph)
Tuesday Morning WSW 5-15
Tuesday Afternoon SW 0-10
Tuesday Evening S 5-15
Tuesday Night SW 15-25
West Central Ridgeline Winds (mph)
Tuesday Morning WNW 5-15
Tuesday Afternoon W 0-10
Tuesday Evening SSW 10-20
Tuesday Night SW 25-35
West South Ridgeline Winds (mph)
Tuesday Morning W 5-15
Tuesday Afternoon SSW 0-10
Tuesday Evening WSW 10-20
Tuesday Night WSW 15-25
Stevens Pass Ridgeline Winds (mph)
Tuesday Morning W 10-20
Tuesday Afternoon W 0-10
Tuesday Evening SW 5-15
Tuesday Night WSW 15-25
Snoqualmie Pass Ridgeline Winds (mph)
Tuesday Morning WNW 10-20
Tuesday Afternoon SW 5-15
Tuesday Evening WSW 10-20
Tuesday Night WSW 25-35
East North Ridgeline Winds (mph)
Tuesday Morning W 5-15
Tuesday Afternoon SSW 5-15
Tuesday Evening S 0-10
Tuesday Night SW 5-15
East Central Ridgeline Winds (mph)
Tuesday Morning WNW 25-35
Tuesday Afternoon SW 5-15
Tuesday Evening SW 5-15
Tuesday Night WSW 30-40
East South Ridgeline Winds (mph)
Tuesday Morning WNW 15-25
Tuesday Afternoon W 0-10
Tuesday Evening SW 10-20
Tuesday Night WSW 20-30
Mt. Hood Ridgeline Winds (mph)
Tuesday Morning W 20-30
Tuesday Afternoon WSW 25-35
Tuesday Evening W 30-40
Tuesday Night WSW 40-55

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

Previous forecast from Dec 8, 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’.