Issued: 7:05 AM PST Tuesday, February 25, 2025
by Dennis D'Amico

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

Weather Synopsis

A deep low pressure system passing inland this morning will pepper the region with strong to extreme winds and heavy showers today.  The west slopes of the Cascades will end up with an additional 6-18" on top of what fell last night with lower amounts today for Mt Hood and for the far eastern slopes of the Cascades.  Showers will be heaviest this morning and then become more focused on the central WA Cascades with a Puget Sound Convergence zone forming this afternoon and lasting through the evening. Forecast confidence has increased that this band of concentrated heavier showers will likely target the Mt Loop to Hwy 2 corridor. With strong west winds, expect significant spillover for higher snowfall totals for the central east slopes of the Cascades. 

Snow levels will hover between 3000-4000'. When and if showers let up, even if it's been snowing to 3000' (or lower) expect those temperatures to bump up between significant precipitation breaks, especially in the afternoon.  

And let's not forget the winds...westerly winds will be extreme near and south of I-90 to Mt Hood and merely strong near and north of Hwy 2 today.  Strong winds will continue into the evening and then taper Tuesday night.  

A ridge of high pressure will build in Tuesday night through Wednesday.  Look for mild sunny conditions with the mildest temperatures along the west slopes of the Cascades, Mt Hood and cooler temperatures with inversions along the east slopes of the Cascades and Stevens Pass. 

Radar note - the NWS western WA (Camano Island Radar) this morning. 

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 Moderate to occasionally heavy rain and snow showers this morning, then mostly cloudy with scattered showers this afternoon. Strong to extreme winds easing somewhat this afternoon.
Tuesday Night Mostly cloudy with a chance of light rain and snow showers in the evening.
Tuesday Moderate to heavy rain and snow showers this morning, then mostly cloudy with scattered showers this afternoon. Strong ridgeline winds.
Tuesday Night Mostly cloudy with a chance of light rain and snow showers in the evening.
Tuesday Moderate to heavy rain and snow showers. Strong to extreme ridgeline winds.
Tuesday Night Mostly cloudy with a chance of light rain and snow showers in the evening.
Tuesday Moderate to heavy rain and snow showers becoming lighter in the afternoon. Strong to extreme ridgeline winds.
Tuesday Night Light rain and snow showers in the evening taper off.
Tuesday Moderate to heavy rain and snow showers. Strong W ridgeline and Pass level winds.
Tuesday Night Light rain and snow showers in the evening taper off. Light to moderate W ridgeline and Pass level winds.
Tuesday Moderate to heavy rain and snow showers easing somewhat in the afternoon. Strong to extreme W ridgeline and Pass level winds.
Tuesday Night Light rain and snow showers in the evening taper off. Light to moderate W ridgeline and Pass level winds.
Tuesday Moderate rain and snow showers, heaviest near the Cascade crest this morning, then scattered light showers in the afternoon. Strong ridgeline winds.
Tuesday Night Mostly cloudy with a chance of light rain and snow showers in the evening.
Tuesday Moderate rain and snow showers, heavy near the Cascade crest. Strong ridgeline winds becoming extreme this afternoon.
Tuesday Night Mostly cloudy with a chance of light rain and snow showers in the evening.
Tuesday Moderate rain and snow showers, heavy near the Cascade crest. Showers becoming lighter this afternoon and scattered. Strong ridgeline winds becoming extreme this afternoon.
Tuesday Night Mostly cloudy with a chance of light rain and snow showers in the evening.
Tuesday Moderate rain and snow showers, becoming lighter and scattered this afternoon. Extreme ridgeline winds.
Tuesday Night Mostly cloudy with a chance of light rain and snow showers in the evening.

Precipitation (in)

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

Snow Level (ft)

Tuesday Morning Tuesday Afternoon Tuesday Evening Tuesday Night Wednesday Morning* Wednesday Afternoon*
Olympics 3500' 4000' 3500' 4500' 7500' 9500'
West North 3000' 3500' 3500' 3000' 6000' 8500'
West Central 3000' 3000' 3000' 3000' 6500' 9000'
West South 3000' 3500' 3000' 3000' 6500' 9500'
Stevens Pass 3000' 3000' 3000' 3000' 5000' 8000'
Snoqualmie Pass 3000' 3500' 3000' 3000' 5000' 9000'
East North 3000' 4500' 3000' 2500' 4000' 5500'
East Central 3000' 4000' 3000' 3000' 5000' 7500'
East South 3000' 4000' 3500' 3500' 7000' 9500'
Mt. Hood 3500' 4000' 4000' 7000' 9000' 10000'
Olympics Elevation
Tuesday Morning 3500'
Tuesday Afternoon 4000'
Tuesday Evening 3500'
Tuesday Night 4500'
Wednesday Morning* 7500'
Wednesday Afternoon* 9500'
West North Elevation
Tuesday Morning 3000'
Tuesday Afternoon 3500'
Tuesday Evening 3500'
Tuesday Night 3000'
Wednesday Morning* 6000'
Wednesday Afternoon* 8500'
West Central Elevation
Tuesday Morning 3000'
Tuesday Afternoon 3000'
Tuesday Evening 3000'
Tuesday Night 3000'
Wednesday Morning* 6500'
Wednesday Afternoon* 9000'
West South Elevation
Tuesday Morning 3000'
Tuesday Afternoon 3500'
Tuesday Evening 3000'
Tuesday Night 3000'
Wednesday Morning* 6500'
Wednesday Afternoon* 9500'
Stevens Pass Elevation
Tuesday Morning 3000'
Tuesday Afternoon 3000'
Tuesday Evening 3000'
Tuesday Night 3000'
Wednesday Morning* 5000'
Wednesday Afternoon* 8000'
Snoqualmie Pass Elevation
Tuesday Morning 3000'
Tuesday Afternoon 3500'
Tuesday Evening 3000'
Tuesday Night 3000'
Wednesday Morning* 5000'
Wednesday Afternoon* 9000'
East North Elevation
Tuesday Morning 3000'
Tuesday Afternoon 4500'
Tuesday Evening 3000'
Tuesday Night 2500'
Wednesday Morning* 4000'
Wednesday Afternoon* 5500'
East Central Elevation
Tuesday Morning 3000'
Tuesday Afternoon 4000'
Tuesday Evening 3000'
Tuesday Night 3000'
Wednesday Morning* 5000'
Wednesday Afternoon* 7500'
East South Elevation
Tuesday Morning 3000'
Tuesday Afternoon 4000'
Tuesday Evening 3500'
Tuesday Night 3500'
Wednesday Morning* 7000'
Wednesday Afternoon* 9500'
Mt. Hood Elevation
Tuesday Morning 3500'
Tuesday Afternoon 4000'
Tuesday Evening 4000'
Tuesday Night 7000'
Wednesday Morning* 9000'
Wednesday Afternoon* 10000'

5000' Temperatures (°F)

Tuesday Tuesday Night
Max / Min Max / Min
Olympics 30 / 28 29 / 25
West North 30 / 26 29 / 24
West Central 29 / 27 29 / 24
West South 30 / 26 28 / 24
Stevens Pass 31 / 27 28 / 25
Snoqualmie Pass 31 / 27 28 / 24
East North 32 / 24 28 / 24
East Central 32 / 26 29 / 25
East South 32 / 27 27 / 24
Mt. Hood 31 / 25 27 / 24
Olympics 5000' Temperature Forecast
(Max / Min)
Tuesday 30 / 28
Tuesday Night 29 / 25
West North 5000' Temperature Forecast
(Max / Min)
Tuesday 30 / 26
Tuesday Night 29 / 24
West Central 5000' Temperature Forecast
(Max / Min)
Tuesday 29 / 27
Tuesday Night 29 / 24
West South 5000' Temperature Forecast
(Max / Min)
Tuesday 30 / 26
Tuesday Night 28 / 24
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Tuesday 31 / 27
Tuesday Night 28 / 25
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Tuesday 31 / 27
Tuesday Night 28 / 24
East North 5000' Temperature Forecast
(Max / Min)
Tuesday 32 / 24
Tuesday Night 28 / 24
East Central 5000' Temperature Forecast
(Max / Min)
Tuesday 32 / 26
Tuesday Night 29 / 25
East South 5000' Temperature Forecast
(Max / Min)
Tuesday 32 / 27
Tuesday Night 27 / 24
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Tuesday 31 / 25
Tuesday Night 27 / 24

Ridgeline Winds (mph)

Tuesday Morning Tuesday Afternoon Tuesday Evening Tuesday Night
Olympics W 25-35 WSW 20-30 SW 5-15 W 0-10
West North S 20-30 WSW 15-25 SW 5-15 W 0-10
West Central SW 30-40 WSW 20-30 WSW 10-20 W 5-15
West South SW 40-55 WSW 30-40 W 10-20 W 0-10
Stevens Pass SW 20-30 W 25-35 W 15-25 W 5-15
Snoqualmie Pass WSW 35-50 W 35-50 W 15-25 W 5-15
East North SSW 15-25 W 20-30 W 15-25 W 0-10
East Central SW 25-35 W 35-50 W 20-30 W 5-15
East South WSW 30-40 W 35-50 W 15-25 WSW 0-10
Mt. Hood WSW 40-55 W 35-50 W 10-20 SW 0-10
Olympics Ridgeline Winds (mph)
Tuesday Morning W 25-35
Tuesday Afternoon WSW 20-30
Tuesday Evening SW 5-15
Tuesday Night W 0-10
West North Ridgeline Winds (mph)
Tuesday Morning S 20-30
Tuesday Afternoon WSW 15-25
Tuesday Evening SW 5-15
Tuesday Night W 0-10
West Central Ridgeline Winds (mph)
Tuesday Morning SW 30-40
Tuesday Afternoon WSW 20-30
Tuesday Evening WSW 10-20
Tuesday Night W 5-15
West South Ridgeline Winds (mph)
Tuesday Morning SW 40-55
Tuesday Afternoon WSW 30-40
Tuesday Evening W 10-20
Tuesday Night W 0-10
Stevens Pass Ridgeline Winds (mph)
Tuesday Morning SW 20-30
Tuesday Afternoon W 25-35
Tuesday Evening W 15-25
Tuesday Night W 5-15
Snoqualmie Pass Ridgeline Winds (mph)
Tuesday Morning WSW 35-50
Tuesday Afternoon W 35-50
Tuesday Evening W 15-25
Tuesday Night W 5-15
East North Ridgeline Winds (mph)
Tuesday Morning SSW 15-25
Tuesday Afternoon W 20-30
Tuesday Evening W 15-25
Tuesday Night W 0-10
East Central Ridgeline Winds (mph)
Tuesday Morning SW 25-35
Tuesday Afternoon W 35-50
Tuesday Evening W 20-30
Tuesday Night W 5-15
East South Ridgeline Winds (mph)
Tuesday Morning WSW 30-40
Tuesday Afternoon W 35-50
Tuesday Evening W 15-25
Tuesday Night WSW 0-10
Mt. Hood Ridgeline Winds (mph)
Tuesday Morning WSW 40-55
Tuesday Afternoon W 35-50
Tuesday Evening W 10-20
Tuesday Night SW 0-10

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

Previous forecast from Feb 24, 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’.