Issued: 6:55 AM PDT Sunday, March 24, 2024
by Dallas Glass

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

Weather Synopsis

A few showers continue to linger from about I-90 southward to Mt Hood this morning. Further north, clearer skies allowed patchy low clouds and valley fog to develop in the mountain valleys and passes. A short-lived high pressure ridge will shift over the Pacific Northwest today. This should push the showers south and help the skies to clear. Most locations should see significant sunshine by mid-day. Onshore flow could draw enough moisture into the mountains for a few clouds and maybe flurries/sprinkles in the afternoon. Any precipitation should be minimal, and the sun will probably quickly return. All in all, it looks like a very seasonable spring-like day. 

After a dry start to the evening, clouds steadily increase ahead of a weak cold front. Westerly winds will help pull some of the front's moisture into the mountains ahead of the cooler air. Very light showers could begin along the west slopes of the mountains after midnight. 

Monday will be cloudy with generally light rain and snow focussed on along the west slopes of the Cascades. Precipitation doesn't significantly spill over the crest until Monday night as the cold front finally passes overhead. 

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
Sunday Sunny with a few clouds possible in the afternoon.
Sunday Night Increasing clouds overnight.
Sunday Low clouds and valley fog in the morning. Mostly sunny with a few clouds in the afternoon.
Sunday Night Increasing clouds. Light precipitation mainly after midnight.
Sunday Low clouds and fog in the morning. Mostly sunny with a few clouds in the afternoon.
Sunday Night Increasing clouds with light precipitation mainly after midnight.
Sunday Mostly cloudy with a few showers in the morning. Becoming mostly sunny with a few isolated showers possible in the afternoon. Light to moderate W winds.
Sunday Night Mostly clear in the evening, then increasing clouds and precipitation mainly after midnight. Light to moderate W winds.
Sunday Low clouds and fog in the morning with sun shine and few passing clouds in the afternoon. Light WNW winds.
Sunday Night Increasing clouds with precipitation mainly after midnight. Light W winds.
Sunday Cloudy with a few showers in the morning. Becoming mostly sunny with a few passing clouds. Light to moderate WNW winds decreasing slightly.
Sunday Night Increasing clouds with precipitation mainly after midnight. Light to moderate W winds.
Sunday Low clouds and valley fog possible in the morning. Becoming mostly sunny.
Sunday Night Increasing clouds. A few sprinkles possible near the crest.
Sunday Partly to mostly cloudy in the morning with a few sprinkles possible. Becoming mostly sunny.
Sunday Night Increasing clouds with a few light showers near the crest after midnight. W winds becoming light to moderate.
Sunday Partly to mostly cloudy in the morning with a few sprinkles possible. Light to moderate W winds.
Sunday Night Increasing clouds. A few sprinkles possible near the crest after midnight. Light to moderate W winds.
Sunday Clouds mainly on the W and N sides of the mountain with more sunshine further east. A few light showers mainly in the morning. Moderate NW winds turning more W.
Sunday Night Mostly cloudy with a few showers increasing in the early morning hours. Moderate to strong W winds.

Issued: 6:55 AM PDT Sunday, March 24, 2024

Precipitation (in)

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

Issued: 6:55 AM PDT Sunday, March 24, 2024

Snow Level (ft)

Sunday Morning Sunday Afternoon Sunday Evening Sunday Night Monday Morning Monday Afternoon
Olympics 4000' 5500' 5000' 3500' 3000' 4000'
West North 3000' 5500' 4500' 3500' 3000' 3500'
West Central 3000' 5000' 4500' 3500' 3000' 3500'
West South 3500' 5500' 4500' 3500' 3000' 4000'
Stevens Pass 3500' 5000' 4500' 3500' 3000' 3500'
Snoqualmie Pass 3500' 5000' 4500' 3500' 3000' 3500'
East North 3000' 5500' 4000' 3000' 3000' 3000'
East Central 3500' 5500' 5000' 3500' 3000' 3500'
East South 4000' 5500' 4500' 3500' 3000' 4000'
Mt. Hood 3500' 5000' 4500' 3500' 3000' 4000'
Olympics Elevation
Sunday Morning 4000'
Sunday Afternoon 5500'
Sunday Evening 5000'
Sunday Night 3500'
Monday Morning 3000'
Monday Afternoon 4000'
West North Elevation
Sunday Morning 3000'
Sunday Afternoon 5500'
Sunday Evening 4500'
Sunday Night 3500'
Monday Morning 3000'
Monday Afternoon 3500'
West Central Elevation
Sunday Morning 3000'
Sunday Afternoon 5000'
Sunday Evening 4500'
Sunday Night 3500'
Monday Morning 3000'
Monday Afternoon 3500'
West South Elevation
Sunday Morning 3500'
Sunday Afternoon 5500'
Sunday Evening 4500'
Sunday Night 3500'
Monday Morning 3000'
Monday Afternoon 4000'
Stevens Pass Elevation
Sunday Morning 3500'
Sunday Afternoon 5000'
Sunday Evening 4500'
Sunday Night 3500'
Monday Morning 3000'
Monday Afternoon 3500'
Snoqualmie Pass Elevation
Sunday Morning 3500'
Sunday Afternoon 5000'
Sunday Evening 4500'
Sunday Night 3500'
Monday Morning 3000'
Monday Afternoon 3500'
East North Elevation
Sunday Morning 3000'
Sunday Afternoon 5500'
Sunday Evening 4000'
Sunday Night 3000'
Monday Morning 3000'
Monday Afternoon 3000'
East Central Elevation
Sunday Morning 3500'
Sunday Afternoon 5500'
Sunday Evening 5000'
Sunday Night 3500'
Monday Morning 3000'
Monday Afternoon 3500'
East South Elevation
Sunday Morning 4000'
Sunday Afternoon 5500'
Sunday Evening 4500'
Sunday Night 3500'
Monday Morning 3000'
Monday Afternoon 4000'
Mt. Hood Elevation
Sunday Morning 3500'
Sunday Afternoon 5000'
Sunday Evening 4500'
Sunday Night 3500'
Monday Morning 3000'
Monday Afternoon 4000'

Issued: 6:55 AM PDT Sunday, March 24, 2024

5000' Temperatures (°F)

Sunday Sunday Night
Max / Min Max / Min
Olympics 43 / 28 40 / 27
West North 43 / 28 40 / 29
West Central 46 / 28 43 / 28
West South 38 / 28 34 / 28
Stevens Pass 35 / 27 32 / 28
Snoqualmie Pass 34 / 28 32 / 28
East North 38 / 25 35 / 25
East Central 38 / 28 34 / 26
East South 40 / 27 37 / 27
Mt. Hood 34 / 27 34 / 26
Olympics 5000' Temperature Forecast
(Max / Min)
Sunday 43 / 28
Sunday Night 40 / 27
West North 5000' Temperature Forecast
(Max / Min)
Sunday 43 / 28
Sunday Night 40 / 29
West Central 5000' Temperature Forecast
(Max / Min)
Sunday 46 / 28
Sunday Night 43 / 28
West South 5000' Temperature Forecast
(Max / Min)
Sunday 38 / 28
Sunday Night 34 / 28
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Sunday 35 / 27
Sunday Night 32 / 28
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Sunday 34 / 28
Sunday Night 32 / 28
East North 5000' Temperature Forecast
(Max / Min)
Sunday 38 / 25
Sunday Night 35 / 25
East Central 5000' Temperature Forecast
(Max / Min)
Sunday 38 / 28
Sunday Night 34 / 26
East South 5000' Temperature Forecast
(Max / Min)
Sunday 40 / 27
Sunday Night 37 / 27
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Sunday 34 / 27
Sunday Night 34 / 26

Issued: 6:55 AM PDT Sunday, March 24, 2024

Ridgeline Winds (mph)

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

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

Previous forecast from Mar 23, 2024

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’.