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Mountain Weather Forecast

Issued: 7:05 AM PST Tuesday, March 26, 2024
by Dennis D'Amico

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

Weather Synopsis for Tuesday & Wednesday

Showers in brisk westerly flow will continue this morning with locally heavier showers near Mt Hood and near areas of convergence along the west slopes of the Cascades from I-90 and north through Whatcom County. The convergence zone(s) will drift north and weaken through mid-day. This morning's heaviest accumulations will fall over the western sections of the Cascades in Whatcom/Skagit and Snohomish Counties as well as Mt Hood, where an additional 3-6" of snow may fall. We'll see lighter accumulations elsewhere. 

Showers will become scattered and lighter this afternoon. Low clouds will stick along the Olympics, Mt Hood area, and the west slopes of the Cascades and Passes but there will be sunbreaks. You won't have to travel too far east of the Cascade crest to find much sunnier skies Tuesday afternoon along with slightly higher freezing levels. 

We'll have a brief reprieve tonight as upper level ridging passes inland. A stronger frontal system will start to spread warm frontal precipitation inland during the morning hours. Cool easterly flow will help nudge snow levels down to 2500' across much of the Washington Cascades at the onset of precipitation Wednesday morning.  Snow levels will inch up during the day, and pop around 4000-4500' in the late afternoon as a weakening cold front pushes through. Precipitation amounts look to be in the 0.25-0.75" range during the day, with the highest totals likely for Mt Hood, Crystal/Paradise and the Mt Baker area. Mt Hood will be the windiest and mildest location during this storm. 

Weather Forecast

Olympics
Tuesday Cloudy with scattered light rain and snow showers, becoming partly to mostly cloudy with isolated showers in the afternoon.
Mostly cloudy with increasing high clouds in the evening. Then cloudy with light rain and snow developing late tonight. Moderate ridgeline winds.
West North
Tuesday Cloudy light to occasionally moderate rain and snow showers this morning, becoming mostly cloudy with sunbreaks and scattered light showers in the afternoon.
Mostly cloudy with increasing high clouds overnight. Moderate ridgeline winds after midnight.
West Central
Tuesday Cloudy light to occasionally moderate rain and snow showers this morning, becoming mostly cloudy with sunbreaks and scattered light showers in the afternoon. Moderate ridgeline winds.
Mostly cloudy with increasing high clouds overnight.
West South
Tuesday Cloudy with scattered light rain and snow showers this morning, becoming mostly cloudy with sunbreaks and isolated light showers in the afternoon. Moderate ridgeline winds.
Partly to mostly cloudy with increasing high clouds in the evening. Then cloudy with light rain and snow developing late tonight. Moderate ridgeline winds after midnight.
Stevens Pass
Tuesday Cloudy light to occasionally moderate rain and snow showers this morning, becoming mostly cloudy with sunbreaks and scattered light showers in the afternoon. Moderate ridgeline and Pass level W winds.
Mostly cloudy. Light E Pass level winds and light to moderate S-SE ridgeline winds.
Snoqualmie Pass
Tuesday Cloudy light to occasionally moderate rain and snow showers this morning, becoming mostly cloudy with sunbreaks and scattered light showers in the afternoon. Moderate ridgeline and Pass level W winds.
Mostly cloudy with increasing high clouds overnight. Light E Pass level winds and light to moderate S-SE ridgeline winds.
East North
Tuesday Mostly cloudy with scattered light rain and snow showers this morning, becoming partly to mostly sunny this afternoon. Cloudier near the Cascade crest. Moderate ridgeline winds.
Partly to mostly cloudy with increasing high clouds overnight.
East Central
Tuesday Mostly cloudy with scattered light rain and snow showers this morning, becoming partly to mostly sunny this afternoon. Cloudier near the Cascade crest. Moderate ridgeline winds.
Partly to mostly cloudy with increasing high clouds overnight. Moderate ridgeline winds after midnight.
East South
Tuesday Mostly cloudy with scattered light rain and snow showers this morning, becoming partly to mostly sunny this afternoon. Cloudier near the Cascade crest. Moderate ridgeline winds.
Partly to mostly cloudy with increasing high clouds in the evening. Then cloudy with light rain and snow developing late tonight. Moderate ridgeline winds after midnight.
Mt. Hood
Tuesday Cloudy light to occasionally moderate rain and snow showers this morning, becoming mostly cloudy with sunbreaks and scattered light showers in the afternoon. Strong ridgeline winds becoming moderate in the afternoon.
Partly to mostly cloudy with increasing high clouds in the evening. Then cloudy with light rain and snow developing late tonight. Moderate ridgeline winds.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Tuesday Morning Snow Level None' None' None' None' 3000' 3000' None' 3500'
Tuesday Afternoon Snow Level None' None' None' None' 4000' 3500' None' 4500'
Tuesday Evening Snow Level None' None' None' None' 3000' 3000' None' 4000'
Tuesday Night Snow Level* None' None' None' None' 2500' 3000' None' 4000'
Wednesday Morning Snow Level* None' None' None' None' 2500' 2500' None' 4500'
Hurricane Ridge Elevation
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
(Easterly Flow *)
Wednesday Morning Snow Level
None'
(Easterly Flow *)
Wednesday Afternoon Snow Level
None'
Mt. Baker Elevation
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
(Easterly Flow *)
Wednesday Morning Snow Level
None'
(Easterly Flow *)
Wednesday Afternoon Snow Level
None'
Washington Pass Elevation
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
(Easterly Flow *)
Wednesday Morning Snow Level
None'
(Easterly Flow *)
Wednesday Afternoon Snow Level
None'
Leavenworth Elevation
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
(Easterly Flow *)
Wednesday Morning Snow Level
None'
(Easterly Flow *)
Wednesday Afternoon Snow Level
None'
Stevens Pass Elevation
Tuesday Morning Snow Level
3000'
Tuesday Afternoon Snow Level
4000'
Tuesday Evening Snow Level
3000'
Tuesday Night Snow Level
2500'
(Easterly Flow *)
Wednesday Morning Snow Level
2500'
(Easterly Flow *)
Wednesday Afternoon Snow Level
4000'
Snoqualmie Pass Elevation
Tuesday Morning Snow Level
3000'
Tuesday Afternoon Snow Level
3500'
Tuesday Evening Snow Level
3000'
Tuesday Night Snow Level
3000'
(Easterly Flow *)
Wednesday Morning Snow Level
2500'
(Easterly Flow *)
Wednesday Afternoon Snow Level
4000'
Mt. Rainier & Crystal Elevation
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
(Easterly Flow *)
Wednesday Morning Snow Level
None'
(Easterly Flow *)
Wednesday Afternoon Snow Level
None'
Mt. Hood Elevation
Tuesday Morning Snow Level
3500'
Tuesday Afternoon Snow Level
4500'
Tuesday Evening Snow Level
4000'
Tuesday Night Snow Level
4000'
(Easterly Flow *)
Wednesday Morning Snow Level
4500'
(Easterly Flow *)
Wednesday Afternoon Snow Level
5000'

* 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

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

Free Winds at 5000' (mph)

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

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

Previous forecast from March 25, 2024

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