Issued: 2:33 PM PDT Saturday, April 5, 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

Warm temperatures and high freezing levels from this afternoon won't cool much overnight as a slow-moving frontal system approaches the coast. The Pacific frontal system will stumble inland to the Olympic Peninsula before daybreak Sunday, but with upper-level ridging amplifying over the intermountain West, the front will have a difficult time making headway further inland on Sunday. 

There is still a range of outcomes regarding the eastern extent of the precipitation on Sunday, with the best consensus pointing to partly sunny/filtered sun for the west slopes of the Cascades and Mt Hood in the morning, giving way to overcast skies and light precipitation in the afternoon, with precipitation rates approaching moderate for the west slope volcanoes in the afternoon. Light precipitation may not make it east of the Cascade crest by 5pm Sunday and eastern spots will likely see more sun during the day. There's better confidence S-SE winds will increase on Sunday, becoming strong for the Hurricane Ridge and Mt Baker area later in the day. Once precipitation does begin, snow levels will be well above Pass level and higher trailheads. 

The front will slowly slide inland Sunday night, spreading precipitation further east. SSW flow aloft will likely favor the volcanoes for the heaviest precipitation amounts.  Snow levels will slowly fall to 5000-5500' by Monday morning as cooler air seeps into the region. On Monday, look for unsettled showery weather as an upper level feature rotating around the base of a broad trough of low pressure in the Gulf of Alaska brings about renewed showers in the afternoon. 

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 Mostly cloudy with a chance of rain after midnight. Moderate ridgeline winds.
Sunday Light to occasionally moderate rain and high-elevation snow, heaviest south slopes of the Olympics. Moderate to strong ridgeline winds.
Saturday Night Partly to mostly clear. Moderate ridgeline winds.
Sunday Partly sunny with filtered sunshine in the morning, becoming overcast with light rain and high elevation snow developing by mid-day. Moderate to strong ridgeline winds.
Saturday Night Partly to mostly clear. Light to moderate ridgeline winds.
Sunday Partly sunny with filtered sunshine in the morning, becoming overcast with light rain and high elevation snow developing in the afternoon. Moderate ridgeline winds.
Saturday Night Partly to mostly clear. Light to moderate ridgeline winds.
Sunday Partly sunny with filtered sunshine in the morning, becoming overcast with light rain and high elevation snow developing in the afternoon. Moderate ridgeline winds.
Saturday Night Partly to mostly clear. Light to occasionally moderate S ridgeline and E Pass level winds.
Sunday Partly sunny with filtered sunshine in the morning, becoming overcast with light rain and high elevation snow developing in the afternoon. Moderate SE ridgeline winds and light to moderate E Pass level winds.
Saturday Night Partly to mostly clear. Light to occasionally moderate S ridgeline and E Pass level winds.
Sunday Partly sunny with filtered sunshine in the morning, becoming overcast with light rain and high elevation snow developing in the afternoon. Moderate SE ridgeline winds and light to moderate E Pass level winds.
Saturday Night Partly to mostly clear. Light to occasionally moderate ridgeline winds.
Sunday Partly to mostly sunny with periods of filtered sunshine in the morning, becoming overcast with a chance of light rain and high elevation snow in the afternoon. Light to moderate ridgeline winds increasing in the afternoon.
Saturday Night Partly to mostly clear. Light to occasionally moderate ridgeline winds.
Sunday Partly to mostly sunny with periods of filtered sunshine in the morning, becoming overcast with a chance of light rain and high elevation snow in the afternoon. Light to moderate ridgeline winds increasing in the afternoon.
Saturday Night Partly to mostly clear. Light to occasionally moderate ridgeline winds.
Sunday Partly to mostly sunny with periods of filtered sunshine in the morning, becoming overcast with a chance of light rain and high elevation snow in the afternoon. Light to moderate ridgeline winds increasing in the afternoon.
Saturday Night Partly to mostly clear. Light to moderate ridgeline winds.
Sunday Partly to mostly sunny with periods of filtered sunshine in the morning, becoming overcast with light rain and high elevation snow developing in the afternoon. Light to moderate ridgeline winds increasing in the afternoon.

Issued: 2:33 PM PDT Saturday, April 5, 2025

Precipitation (in)

Saturday Night Sunday Sunday Night Monday
5 pm - 5 am 5 am - 5 pm 5 pm - 5 am 5 am - 5 pm
Hurricane Ridge LT 0.10 0.25 - 0.50 0.25 0.25 - 0.50
Mt Baker Ski Area 0 0.25 - 0.50 1.00 0.50 - 0.75
Mt. Loop - Barlow Pass 0 LT 0.10 0.75 0.50
Stevens Pass 0 LT 0.10 0.25 - 0.50 0.25 - 0.50
Snoqualmie Pass 0 LT 0.10 0.50 0.50
Crystal Mt 0 LT 0.25 0.50 - 0.75 0.25
Paradise 0 0.25 0.75 -1.00 0.50 - 0.75
White Pass 0 LT 0.10 0.50 0.25 - 0.50
Washington Pass 0 LT 0.10 0.25 - 0.50 0.25
Mission Ridge 0 0 0.50 LT 0.25
Salmon la Sac - Gallagher Head 0 LT 0.10 0.25 - 0.50 0.25
Tieton River - Darland Mt. 0 LT 0.10 0.25 - 0.50 0.25 - 0.50
Mt Hood Meadows 0 LT 0.10 0.50 0.25 - 0.50
Timberline 0 LT 0.10 0.75 0.50
Hurricane Ridge Precipitation (in)
Saturday Night LT 0.10
Sunday 0.25 - 0.50
Sunday Night 0.25
Monday 0.25 - 0.50
Mt Baker Ski Area Precipitation (in)
Saturday Night 0
Sunday 0.25 - 0.50
Sunday Night 1.00
Monday 0.50 - 0.75
Mt. Loop - Barlow Pass Precipitation (in)
Saturday Night 0
Sunday LT 0.10
Sunday Night 0.75
Monday 0.50
Stevens Pass Precipitation (in)
Saturday Night 0
Sunday LT 0.10
Sunday Night 0.25 - 0.50
Monday 0.25 - 0.50
Snoqualmie Pass Precipitation (in)
Saturday Night 0
Sunday LT 0.10
Sunday Night 0.50
Monday 0.50
Crystal Mt Precipitation (in)
Saturday Night 0
Sunday LT 0.25
Sunday Night 0.50 - 0.75
Monday 0.25
Paradise Precipitation (in)
Saturday Night 0
Sunday 0.25
Sunday Night 0.75 -1.00
Monday 0.50 - 0.75
White Pass Precipitation (in)
Saturday Night 0
Sunday LT 0.10
Sunday Night 0.50
Monday 0.25 - 0.50
Washington Pass Precipitation (in)
Saturday Night 0
Sunday LT 0.10
Sunday Night 0.25 - 0.50
Monday 0.25
Mission Ridge Precipitation (in)
Saturday Night 0
Sunday 0
Sunday Night 0.50
Monday LT 0.25
Salmon la Sac - Gallagher Head Precipitation (in)
Saturday Night 0
Sunday LT 0.10
Sunday Night 0.25 - 0.50
Monday 0.25
Tieton River - Darland Mt. Precipitation (in)
Saturday Night 0
Sunday LT 0.10
Sunday Night 0.25 - 0.50
Monday 0.25 - 0.50
Mt Hood Meadows Precipitation (in)
Saturday Night 0
Sunday LT 0.10
Sunday Night 0.50
Monday 0.25 - 0.50
Timberline Precipitation (in)
Saturday Night 0
Sunday LT 0.10
Sunday Night 0.75
Monday 0.50

Issued: 2:33 PM PDT Saturday, April 5, 2025

Snow Level (ft)

Saturday Evening Saturday Night* Sunday Morning* Sunday Afternoon Sunday Evening Sunday Night Monday Morning Monday Afternoon
Olympics 9000' 8000' 7500' 7000' 5500' 5000' 5000' 4500'
West North 9000' 9000' 8500' 7000' 6000' 5500' 5500' 5000'
West Central 9000' 9000' 8500' 7500' 7000' 5500' 5500' 5000'
West South 9000' 9000' 8500' 7500' 7000' 5500' 5500' 5000'
Stevens Pass 9000' 9000' 8500' 7500' 7000' 5500' 5500' 5000'
Snoqualmie Pass 9000' 9000' 8500' 7500' 7000' 5500' 5500' 5000'
East North 9000' 9000' 8500' 7500' 7000' 5500' 5500' 6000'
East Central 9000' 9000' 8500' 7500' 7000' 5500' 5500' 6000'
East South 9000' 9000' 8500' 7500' 7000' 5500' 5500' 6000'
Mt. Hood 10000' 9000' 8500' 8000' 7000' 5500' 5500' 5000'
Olympics Elevation
Saturday Evening 9000'
Saturday Night* 8000'
Sunday Morning* 7500'
Sunday Afternoon 7000'
Sunday Evening 5500'
Sunday Night 5000'
Monday Morning 5000'
Monday Afternoon 4500'
West North Elevation
Saturday Evening 9000'
Saturday Night* 9000'
Sunday Morning* 8500'
Sunday Afternoon 7000'
Sunday Evening 6000'
Sunday Night 5500'
Monday Morning 5500'
Monday Afternoon 5000'
West Central Elevation
Saturday Evening 9000'
Saturday Night* 9000'
Sunday Morning* 8500'
Sunday Afternoon 7500'
Sunday Evening 7000'
Sunday Night 5500'
Monday Morning 5500'
Monday Afternoon 5000'
West South Elevation
Saturday Evening 9000'
Saturday Night* 9000'
Sunday Morning* 8500'
Sunday Afternoon 7500'
Sunday Evening 7000'
Sunday Night 5500'
Monday Morning 5500'
Monday Afternoon 5000'
Stevens Pass Elevation
Saturday Evening 9000'
Saturday Night* 9000'
Sunday Morning* 8500'
Sunday Afternoon 7500'
Sunday Evening 7000'
Sunday Night 5500'
Monday Morning 5500'
Monday Afternoon 5000'
Snoqualmie Pass Elevation
Saturday Evening 9000'
Saturday Night* 9000'
Sunday Morning* 8500'
Sunday Afternoon 7500'
Sunday Evening 7000'
Sunday Night 5500'
Monday Morning 5500'
Monday Afternoon 5000'
East North Elevation
Saturday Evening 9000'
Saturday Night* 9000'
Sunday Morning* 8500'
Sunday Afternoon 7500'
Sunday Evening 7000'
Sunday Night 5500'
Monday Morning 5500'
Monday Afternoon 6000'
East Central Elevation
Saturday Evening 9000'
Saturday Night* 9000'
Sunday Morning* 8500'
Sunday Afternoon 7500'
Sunday Evening 7000'
Sunday Night 5500'
Monday Morning 5500'
Monday Afternoon 6000'
East South Elevation
Saturday Evening 9000'
Saturday Night* 9000'
Sunday Morning* 8500'
Sunday Afternoon 7500'
Sunday Evening 7000'
Sunday Night 5500'
Monday Morning 5500'
Monday Afternoon 6000'
Mt. Hood Elevation
Saturday Evening 10000'
Saturday Night* 9000'
Sunday Morning* 8500'
Sunday Afternoon 8000'
Sunday Evening 7000'
Sunday Night 5500'
Monday Morning 5500'
Monday Afternoon 5000'

Issued: 2:33 PM PDT Saturday, April 5, 2025

5000' Temperatures (°F)

Saturday Night Sunday
Max / Min Max / Min
Olympics 43 / 37 40 / 36
West North 43 / 37 40 / 37
West Central 44 / 37 45 / 38
West South 46 / 38 46 / 39
Stevens Pass 46 / 38 48 / 39
Snoqualmie Pass 46 / 37 47 / 38
East North 44 / 37 47 / 37
East Central 45 / 37 48 / 39
East South 46 / 39 49 / 39
Mt. Hood 46 / 40 49 / 41
Olympics 5000' Temperature Forecast
(Max / Min)
Saturday Night 43 / 37
Sunday 40 / 36
West North 5000' Temperature Forecast
(Max / Min)
Saturday Night 43 / 37
Sunday 40 / 37
West Central 5000' Temperature Forecast
(Max / Min)
Saturday Night 44 / 37
Sunday 45 / 38
West South 5000' Temperature Forecast
(Max / Min)
Saturday Night 46 / 38
Sunday 46 / 39
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Saturday Night 46 / 38
Sunday 48 / 39
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Saturday Night 46 / 37
Sunday 47 / 38
East North 5000' Temperature Forecast
(Max / Min)
Saturday Night 44 / 37
Sunday 47 / 37
East Central 5000' Temperature Forecast
(Max / Min)
Saturday Night 45 / 37
Sunday 48 / 39
East South 5000' Temperature Forecast
(Max / Min)
Saturday Night 46 / 39
Sunday 49 / 39
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Saturday Night 46 / 40
Sunday 49 / 41

Issued: 2:33 PM PDT Saturday, April 5, 2025

Ridgeline Winds (mph)

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

Issued: 2:33 PM PDT Saturday, April 5, 2025

Extended Weather Synopsis

Snow levels will dip to 3500' Monday night with continued showers. The same broad trough will spawn a developing low on Tuesday that lifts NE across the region. This should be a fast-mover and bring another round of wind, rain and snow.  Showers will continue Tuesday night with weak upper level ridging attempting to build over the area Wednesday afternoon.  

Extended Snow Level (ft)

Monday Night Tuesday Tuesday Night Wednesday
West North 3500' 4500' 3500' 5000'
Snoqualmie Pass 3500' 4500' 3500' 6500'
Mt. Hood 4000' 4500' 4000' 7500'
West North Elevation
Monday Night 3500'
Tuesday 4500'
Tuesday Night 3500'
Wednesday 5000'
Snoqualmie Pass Elevation
Monday Night 3500'
Tuesday 4500'
Tuesday Night 3500'
Wednesday 6500'
Mt. Hood Elevation
Monday Night 4000'
Tuesday 4500'
Tuesday Night 4000'
Wednesday 7500'

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

Previous forecast from Apr 5, 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’.