Issued: 2:24 PM PDT Saturday, March 22, 2025
by Dallas Glass

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

Weather Synopsis

It's a quiet afternoon across the forecast region, but that's about to change. The mountains will look very different by tomorrow morning. An atmospheric river takes aim at the Pacific Northwest overnight bringing locally heavy precipitation, rising snow levels, and very windy conditions for the next several days.

Clouds continue to increase this evening ahead of the storm, but most trailheads stay dry. Precipitation arrives first in the Olympics, before spreading to the Cascades around midnight, and finally to Mt Hood and the easter portions of the zone just before sunrise. Initially warming with this storm will be slow, allowing snow to accumulate even at lower elevations before it switches over to rain. Snoqualmie Pass will probably change in the wee hours of the morning, but Stevens and White Passes should remain snow overnight. As the precipitation starts, look for winds to increase and become noticeably gusty. 

By Sunday morning, the fire hose is aimed directly at the Central Washington Cascades. Expect stormy conditions with heavy precipitation in the western Olympics, and near and west of the Cascade Crest. Lighter steady precipitation with the occasionally heavier shower will easily make its way further east. Temperatures should quickly rise as the storm continues to intensify. For most zones, rain could reach well into the upper elevations by the afternoon. On top of the heavy precipitation, very strong and even extreme winds will rake the mountains. 

The main band of precipitation lifts slightly northward Sunday night maintaining a steady stream of rain and high elevation snow from near Mt Rainier and I-90 northward. For the most part, winds also remain very strong and gusty. Basically, the storm just doesn't seem to let up. A bit more uncertainty arises by Monday. Some weather models keep the moisture coming, while others indicate a bit of drying and more of a showery pattern. Either way, snow levels will already be near or above most of our forecast elevations, so any precipitation that falls will almost certainly be as rain. 

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 Cloudy with rain and snow developing overnight. Warming. SW winds becoming moderate to strong and gusty.
Sunday Stormy, particularly in the western Olympics. SW winds increasing and becoming strong and gusty.
Saturday Night Cloudy with rain and snow developing overnight. SSW winds becoming moderate to strong and gusty.
Sunday Stormy with rain and high elevation snow, could be heavy at times. Warming. Moderate to strong and gusty SSW winds turning SW.
Saturday Night Cloudy with rain and snow developing overnight. SW winds becoming moderate and gusty.
Sunday Stormy with rain and high elevation snow, could be heavy at times. Warming. SW winds increasing and becoming strong and gusty.
Saturday Night Cloudy with rain and snow developing overnight. SW winds becoming moderate and gusty.
Sunday Stormy with rain and high elevation snow, could be heavy at times. Warming. SW winds turning WSW, increasing, and becoming strong and gusty.
Saturday Night Cloudy with rain and snow developing overnight. W winds becoming moderate and gusty.
Sunday Snow in the morning, quickly turning to rain at Pass level. Warming. Precipitation could be heavy at times. WSW winds becoming moderate to strong and gusty.
Saturday Night Cloudy with rain and snow developing overnight. Snow turning to rain at Pass level in the very early morning hours. W winds becoming moderate and gusty.
Sunday Stormy with rain and high elevation snow, could be heavy at times. Warming. WSW winds increasing and becoming strong and gusty.
Saturday Night Cloudy with rain and snow developing overnight, mainly near the crest. Winds turning WSW and becoming moderate and gusty.
Sunday Stormy, particularly near the crest. Precipitation could be heavy at times. Showers and lighter precipitation further east. Warming. SW winds turning WSW, increasing, and becoming moderate to strong and gusty.
Saturday Night Cloudy with rain and snow developing overnight, mainly near the crest. WSW winds turning W and becoming strong and gusty.
Sunday Stormy, particularly near the crest. Precipitation could be heavy at times. Showers and lighter precipitation further east. Strong and gusty WSW winds turning W and becoming very strong to extreme in wind prone areas.
Saturday Night Cloudy with rain and snow developing overnight, mainly near the crest. WSW winds turning W and becoming strong and gusty.
Sunday Stormy, particularly near the crest. Precipitation could be heavy at times. Showers and lighter precipitation further east. Warming. Strong and gusty WSW winds turning W and becoming very strong to extreme in wind prone areas.
Saturday Night Cloudy with rain and snow likely developing overnight. Moderate W winds turning WSW and becoming strong and gusty.
Sunday Rain and high elevation snow. Precipitation could be heavy at times. Warming. Strong and gusty WSW wind increasing and becoming very strong with extreme alpine winds.

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

Snow Level (ft)

Saturday Evening Saturday Night Sunday Morning Sunday Afternoon Sunday Evening Sunday Night Monday Morning Monday Afternoon
Olympics 2500' 4500' 6500' 8000' 7500' 6500' 6500' 6000'
West North 2000' 3000' 4000' 6000' 6500' 6000' 6000' 6000'
West Central 2500' 3000' 4500' 6500' 7000' 6500' 6500' 7000'
West South 3000' 4500' 5000' 7000' 7500' 7500' 7000' 7500'
Stevens Pass 2500' 3000' 4500' 6500' 7500' 7000' 6500' 7000'
Snoqualmie Pass 3000' 3500' 5000' 7000' 7500' 7500' 7000' 7000'
East North 2000' 3000' 4000' 6000' 6000' 6000' 6000' 6500'
East Central 2500' 3500' 4500' 7000' 7500' 7000' 6500' 7500'
East South 3000' 4500' 5000' 7000' 7500' 7500' 7000' 7500'
Mt. Hood 4000' 5000' 6000' 7500' 8000' 8000' 8000' 8000'
Olympics Elevation
Saturday Evening 2500'
Saturday Night 4500'
Sunday Morning 6500'
Sunday Afternoon 8000'
Sunday Evening 7500'
Sunday Night 6500'
Monday Morning 6500'
Monday Afternoon 6000'
West North Elevation
Saturday Evening 2000'
Saturday Night 3000'
Sunday Morning 4000'
Sunday Afternoon 6000'
Sunday Evening 6500'
Sunday Night 6000'
Monday Morning 6000'
Monday Afternoon 6000'
West Central Elevation
Saturday Evening 2500'
Saturday Night 3000'
Sunday Morning 4500'
Sunday Afternoon 6500'
Sunday Evening 7000'
Sunday Night 6500'
Monday Morning 6500'
Monday Afternoon 7000'
West South Elevation
Saturday Evening 3000'
Saturday Night 4500'
Sunday Morning 5000'
Sunday Afternoon 7000'
Sunday Evening 7500'
Sunday Night 7500'
Monday Morning 7000'
Monday Afternoon 7500'
Stevens Pass Elevation
Saturday Evening 2500'
Saturday Night 3000'
Sunday Morning 4500'
Sunday Afternoon 6500'
Sunday Evening 7500'
Sunday Night 7000'
Monday Morning 6500'
Monday Afternoon 7000'
Snoqualmie Pass Elevation
Saturday Evening 3000'
Saturday Night 3500'
Sunday Morning 5000'
Sunday Afternoon 7000'
Sunday Evening 7500'
Sunday Night 7500'
Monday Morning 7000'
Monday Afternoon 7000'
East North Elevation
Saturday Evening 2000'
Saturday Night 3000'
Sunday Morning 4000'
Sunday Afternoon 6000'
Sunday Evening 6000'
Sunday Night 6000'
Monday Morning 6000'
Monday Afternoon 6500'
East Central Elevation
Saturday Evening 2500'
Saturday Night 3500'
Sunday Morning 4500'
Sunday Afternoon 7000'
Sunday Evening 7500'
Sunday Night 7000'
Monday Morning 6500'
Monday Afternoon 7500'
East South Elevation
Saturday Evening 3000'
Saturday Night 4500'
Sunday Morning 5000'
Sunday Afternoon 7000'
Sunday Evening 7500'
Sunday Night 7500'
Monday Morning 7000'
Monday Afternoon 7500'
Mt. Hood Elevation
Saturday Evening 4000'
Saturday Night 5000'
Sunday Morning 6000'
Sunday Afternoon 7500'
Sunday Evening 8000'
Sunday Night 8000'
Monday Morning 8000'
Monday Afternoon 8000'

5000' Temperatures (°F)

Saturday Night Sunday
Max / Min Max / Min
Olympics 32 / 29 39 / 32
West North 31 / 28 36 / 29
West Central 31 / 30 36 / 31
West South 31 / 28 39 / 31
Stevens Pass 30 / 28 37 / 30
Snoqualmie Pass 30 / 28 39 / 30
East North 25 / 20 34 / 27
East Central 31 / 26 39 / 30
East South 31 / 26 39 / 31
Mt. Hood 33 / 30 40 / 33
Olympics 5000' Temperature Forecast
(Max / Min)
Saturday Night 32 / 29
Sunday 39 / 32
West North 5000' Temperature Forecast
(Max / Min)
Saturday Night 31 / 28
Sunday 36 / 29
West Central 5000' Temperature Forecast
(Max / Min)
Saturday Night 31 / 30
Sunday 36 / 31
West South 5000' Temperature Forecast
(Max / Min)
Saturday Night 31 / 28
Sunday 39 / 31
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Saturday Night 30 / 28
Sunday 37 / 30
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Saturday Night 30 / 28
Sunday 39 / 30
East North 5000' Temperature Forecast
(Max / Min)
Saturday Night 25 / 20
Sunday 34 / 27
East Central 5000' Temperature Forecast
(Max / Min)
Saturday Night 31 / 26
Sunday 39 / 30
East South 5000' Temperature Forecast
(Max / Min)
Saturday Night 31 / 26
Sunday 39 / 31
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Saturday Night 33 / 30
Sunday 40 / 33

Ridgeline Winds (mph)

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

Extended Weather Synopsis

The atmospheric river finally draws to a close late Monday afternoon and evening as onshore flow maintains a few showers in the Olympics and western forecast zones. A high pressure ridge builds over the region by Tuesday keeping us very warm but allowing for a nice sunny and dry day.  The pattern continues Tuesday night with many mountain locations staying well above freezing. A low pressure system starts to dig south out of the Gulf of Alaska on Wednesday bringing increasing clouds and the chance for a few convective showers to the region. 

Extended Snow Level (ft)

Monday Night Tuesday * Tuesday Night* Wednesday *
West North 6500' 8000' 8500' 7500'
Snoqualmie Pass 7500' 9000' 9500' 8000'
Mt. Hood 8000' 10000' 10000' 8500'
West North Elevation
Monday Night 6500'
Tuesday * 8000'
Tuesday Night* 8500'
Wednesday * 7500'
Snoqualmie Pass Elevation
Monday Night 7500'
Tuesday * 9000'
Tuesday Night* 9500'
Wednesday * 8000'
Mt. Hood Elevation
Monday Night 8000'
Tuesday * 10000'
Tuesday Night* 10000'
Wednesday * 8500'

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

Previous forecast from Mar 22, 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’.