Issued: 2:41 PM PDT Tuesday, April 8, 2025
by Josh Lipkowitz

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

Weather Synopsis

Precipitation has become more widespread across the mountains, ramping up in intensity as the afternoon progresses and the cold front passes. A convergence zone will keep the spigot going through the evening hours for areas I-90 north, with its main focus near Mount Baker, Washington Pass, and the Mountain Loop. Outside of the convergence zone, precipitation and winds should peak in the late afternoon before tapering down throughout the evening and overnight, as an upper-level ridge starts to build.

Any remaining showery activity should come to a halt on Wednesday, apart from a stray shower in the north. It’s a relatively weak ridge, so we don’t expect full bluebird, but low clouds should recede in morning hours, allowing for a mix of sun and clouds with mild temperatures and light winds in many mountain locations through the middle of the day. Mid and upper-level clouds build in the afternoon and overnight as the ridge shifts to the east and the mild temperatures continue.

The next weathermaker hangs offshore Thursday morning as it makes its journey eastward toward the Washington Coast. As of now, it seems that most precipitation should stay out of the mountains, Olympics excepted, until at least the afternoon, but we will have to sort out the exact timing as we get closer. Snow levels begin high but lower sharply with the frontal passage Thursday night into Friday. 

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 Night Mostly cloudy with a chance of showers and partial clearing late. Ridgeline winds decrease to moderate overnight.
Wednesday Mostly cloudy to partly sunny, with mid and high clouds filtering back in during the afternoon. Moderate ridgeline winds decrease to light.
Tuesday Night Mostly cloudy with moderate to occasionally heavy showers, decreasing overnight. Moderate to strong ridgeline winds.
Wednesday Mostly cloudy to partly sunny with a chance of a stray shower early. Mid and high clouds build in the afternoon. Light to moderate ridgeline winds decrease to light.
Tuesday Night Mostly cloudy with moderate to occasionally heavy showers, decreasing overnight. Moderate to strong ridgeline winds.
Wednesday Mostly cloudy to partly sunny with a chance of a stray shower early. Mid and high clouds build in the afternoon. Light to moderate ridgeline winds decrease to light.
Tuesday Night Mostly cloudy with snow showers, heaviest on the volcanoes. Strong ridgeline winds decrease to moderate overnight.
Wednesday Mostly cloudy to partly sunny, with mid and high clouds filtering back in during the afternoon. Moderate ridgeline winds decrease to light.
Tuesday Night Mostly cloudy with scattered showers and moderate to strong ridgeline winds.
Wednesday Mostly cloudy to partly sunny with a chance of a stray shower early. Mid and high clouds build in the afternoon. Light to moderate ridgeline winds decrease to light. Light to moderate pass-level winds start westerly and veer southeast.
Tuesday Night Mostly cloudy with scattered showers and moderate to strong ridgeline winds.
Wednesday Mostly cloudy to partly sunny with a chance of a stray shower early. Mid and high clouds build in the afternoon. Light to moderate ridgeline winds decrease to light. Light to moderate pass-level winds start westerly and veer southeast.
Tuesday Night Mostly cloudy with snow showers early, occasionally heavy. Moderate to strong ridgeline winds.
Wednesday Mostly cloudy to partly sunny with a chance of a stray shower early. Mid and high clouds build in the afternoon. Light to moderate ridgeline winds decrease to light.
Tuesday Night Mostly cloudy with scattered showers near the crest, and partial clearing further east. Strong ridgeline winds.
Wednesday Mostly cloudy to partly sunny, with mid and high clouds filtering back in during the afternoon. Moderate ridgeline winds decrease to light.
Tuesday Night Mostly cloudy with scattered snow showers, decreasing overnight. Partial clearing late. Moderate to strong ridgeline winds.
Wednesday Mostly cloudy to partly sunny, with mid and high clouds filtering back in during the afternoon. Moderate ridgeline winds decrease to light.
Tuesday Night Mostly cloudy with scattered snow showers, decreasing overnight. Partial clearing late. Moderate to strong ridgeline winds.
Wednesday Mostly cloudy to partly sunny, with mid and high clouds filtering back in during the afternoon. Moderate to strong ridgeline winds decrease to moderate.

Issued: 2:41 PM PDT Tuesday, April 8, 2025

Precipitation (in)

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

Issued: 2:41 PM PDT Tuesday, April 8, 2025

Snow Level (ft)

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

Issued: 2:41 PM PDT Tuesday, April 8, 2025

5000' Temperatures (°F)

Tuesday Night Wednesday
Max / Min Max / Min
Olympics 30 / 26 32 / 25
West North 30 / 27 31 / 28
West Central 32 / 28 33 / 29
West South 33 / 27 35 / 28
Stevens Pass 32 / 28 34 / 29
Snoqualmie Pass 30 / 28 34 / 29
East North 32 / 25 34 / 26
East Central 32 / 27 35 / 28
East South 33 / 27 36 / 28
Mt. Hood 33 / 29 37 / 30
Olympics 5000' Temperature Forecast
(Max / Min)
Tuesday Night 30 / 26
Wednesday 32 / 25
West North 5000' Temperature Forecast
(Max / Min)
Tuesday Night 30 / 27
Wednesday 31 / 28
West Central 5000' Temperature Forecast
(Max / Min)
Tuesday Night 32 / 28
Wednesday 33 / 29
West South 5000' Temperature Forecast
(Max / Min)
Tuesday Night 33 / 27
Wednesday 35 / 28
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Tuesday Night 32 / 28
Wednesday 34 / 29
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Tuesday Night 30 / 28
Wednesday 34 / 29
East North 5000' Temperature Forecast
(Max / Min)
Tuesday Night 32 / 25
Wednesday 34 / 26
East Central 5000' Temperature Forecast
(Max / Min)
Tuesday Night 32 / 27
Wednesday 35 / 28
East South 5000' Temperature Forecast
(Max / Min)
Tuesday Night 33 / 27
Wednesday 36 / 28
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Tuesday Night 33 / 29
Wednesday 37 / 30

Issued: 2:41 PM PDT Tuesday, April 8, 2025

Ridgeline Winds (mph)

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

Issued: 2:41 PM PDT Tuesday, April 8, 2025

Extended Weather Synopsis

Yet another upper-level trough impacts the area on Friday and Saturday, but models aren’t yet in good agreement as to how showery Friday will be. Regardless, the trough pushes east on Saturday, bringing another round of showers with cool temperatures and low snow levels.

Extended Snow Level (ft)

Thursday Night Friday Friday Night Saturday
West North 3500' 2500' 2500' 2500'
Snoqualmie Pass 3500' 2500' 2500' 2500'
Mt. Hood 4500' 3500' 3000' 2500'
West North Elevation
Thursday Night 3500'
Friday 2500'
Friday Night 2500'
Saturday 2500'
Snoqualmie Pass Elevation
Thursday Night 3500'
Friday 2500'
Friday Night 2500'
Saturday 2500'
Mt. Hood Elevation
Thursday Night 4500'
Friday 3500'
Friday Night 3000'
Saturday 2500'

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

Previous forecast from Apr 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’.