menu

Mountain Weather Forecast

Issued: 3:18 PM PST Monday, April 1, 2024
by Robert Hahn

Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I I Extended Weather

Weather Synopsis for Monday night through Wednesday

A ridge shifting across the region will be centered over the Pacific Northwest Monday night. The ridge is responsible for dry weather, with thin mid-level clouds passing over northern portions of the forecast region at times. Ridgeline winds shift from NW to W as the ridge begins to flatten.

The ridge shifts eastward on Tuesday, but increasing SW winds ahead of an incoming system will bring the mildest day of the week to the Pacific Northwest despite the subtle cooling aloft. Temperatures will be particularly warm east of the Cascades. Moderate ridgeline winds develop for the Olympics and Mt Baker as the day progresses.

Tuesday night, precipitation and cooling arrive as a sharp SSW-NNE-oriented front progresses through the Olympics in the evening and the Cascades overnight. Precipitation favors the mountain loop through Mt Baker, where we expect 0.5-0.75" of water equivalent through Wednesday with local convergence enhancement the Mountain Loop. Other areas generally pick up less than 0.3" of water equivalent. Temperatures drop rapidly as the precipitation arrives, so expect a transition from snow to rain and snow levels dropping to 2000-3000 ft by early Wednesday. Shower activity tapers by the afternoon as sun breaks become more frequent across the west slopes of the Cascades. Expect more widespread clearing east of the Cascades.

 

Weather Forecast

Olympics
Monday Night Mild with periods of high clouds.
Mild. Periods of high clouds in the morning, then clouds lower and thicken in the afternoon.
West North
Monday Night Mild with periods of high clouds.
Mild. Periods of high clouds in the morning, then clouds lower and thicken in the afternoon. Moderate ridgeline winds develop and may become strong by the end of the day.
West Central
Monday Night Mild with periods of high clouds.
Periods of high clouds in the morning, then clouds lower and thicken in the afternoon.
West South
Monday Night Mild with periods of high clouds.
Periods of high clouds in the morning, then clouds lower and thicken in the afternoon.
Stevens Pass
Monday Night Mild with periods of high clouds. Light ridgeline and W wind at the Pass.
Periods of high clouds in the morning, then clouds lower and thicken in the afternoon. Light ridgeline and W wind at the Pass.
Snoqualmie Pass
Monday Night Mild with periods of high clouds. Light ridgeline and W wind at the Pass.
Periods of high clouds in the morning, then clouds lower and thicken in the afternoon. Light ridgeline and W wind at the Pass.
East North
Monday Night Mild with periods of high clouds. Weak inversion develops overnight.
Periods of high clouds in the morning, then clouds increase in the afternoon.
East Central
Monday Night Mild with periods of high clouds.
Periods of high clouds in the morning, then clouds increase in the afternoon.
East South
Monday Night Mild with periods of high clouds.
Periods of high clouds in the morning, then clouds increase in the afternoon.
Mt. Hood
Monday Night Mild with periods of high clouds.
Mild. Periods of high clouds in the morning, then clouds increase in the afternoon. Moderate winds may develop late in the day.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Monday Evening Snow Level None' None' None' None' 10500' 10500' None' 11000'
Monday Night Snow Level None' None' None' None' 10500' 11000' None' 11000'
Tuesday Morning Snow Level None' None' None' None' 10000' 10000' None' 11000'
Tuesday Afternoon Snow Level None' None' None' None' 9000' 9500' None' 10500'
Tuesday Evening Snow Level None' None' None' None' 7500' 7500' None' 8500'
Tuesday Night Snow Level None' None' None' None' 4000' 4000' None' 4500'
Wednesday Morning Snow Level None' None' None' None' 2000' 2000' None' 3000'
Hurricane Ridge Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Mt. Baker Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Washington Pass Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Leavenworth Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Stevens Pass Elevation
Monday Evening Snow Level
10500'
Monday Night Snow Level
10500'
Tuesday Morning Snow Level
10000'
Tuesday Afternoon Snow Level
9000'
Tuesday Evening Snow Level
7500'
Tuesday Night Snow Level
4000'
Wednesday Morning Snow Level
2000'
Wednesday Afternoon Snow Level
3000'
Snoqualmie Pass Elevation
Monday Evening Snow Level
10500'
Monday Night Snow Level
11000'
Tuesday Morning Snow Level
10000'
Tuesday Afternoon Snow Level
9500'
Tuesday Evening Snow Level
7500'
Tuesday Night Snow Level
4000'
Wednesday Morning Snow Level
2000'
Wednesday Afternoon Snow Level
3000'
Mt. Rainier & Crystal Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Mt. Hood Elevation
Monday Evening Snow Level
11000'
Monday Night Snow Level
11000'
Tuesday Morning Snow Level
11000'
Tuesday Afternoon Snow Level
10500'
Tuesday Evening Snow Level
8500'
Tuesday Night Snow Level
4500'
Wednesday Morning Snow Level
3000'
Wednesday Afternoon Snow Level
3500'

* Easterly flow in the Cascade Passes can cause locally lower Snow or Freezing levels than areas further west.
Freezing Level is when no precipitation is forecast.

Precipitation Forecast

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

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Monday Evening --- None - None --- None - None --- None - None --- None - None NW None - None
Monday Night --- None - None --- None - None --- None - None --- None - None NW None - None
Tuesday Morning --- None - None --- None - None --- None - None --- None - None W None - None
Hurricane Ridge Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Baker Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Stevens and Snoqualmie Pass Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Rainier Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Hood Elevation
Monday Evening NW None - None
Monday Night NW None - None
Tuesday Morning W None - None
Tuesday Afternoon SW None - None
Hurricane Ridge Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Baker Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Rainier Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Hood Direction - Speed
Monday Evening NW None - None
Monday Night NW None - None
Tuesday Morning W None - None
Tuesday Afternoon SW None - None

Directions above indicate the direction the wind blows from on the 16-point cardinal scale. These winds indicate "free" winds, or those winds in the atmosphere not influenced by terrain. Topographical effects may produce greater or lower wind speeds in certain locations as well as significant variations in direction.

Extended Weather Synopsis for Wednesday night through Friday

A cool trough drifts southward just off the Pacific Northwest coastline, keeping slightly unsettled weather with scattered rain/snow showers along with cooler-than-normal temperatures over the region through the end of the week.

Extended Snow/Freezing Levels

Mt. Baker Snoqualmie Pass Mt. Hood Easterly Flow *
Wednesday Night Snow Level None' - None' None' - None' None' - None'
Thursday Snow Level None' - None' None' - None' None' - None'
Thursday Night Snow Level None' - None' None' - None' None' - None'
Mt. Baker Elevation
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Thursday Night Snow Level
None' - None'
Friday Snow Level
None' - None'
Snoqualmie Pass Elevation
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Thursday Night Snow Level
None' - None'
Friday Snow Level
None' - None'
Mt. Hood Elevation
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Thursday Night Snow Level
None' - None'
Friday Snow Level
None' - None'

* Easterly flow in the Cascade Passes can cause locally lower Snow or Freezing levels than areas further west.
Freezing Level is when no precipitation is forecast.

Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I I Extended Weather

Previous forecast from April 1, 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.