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Mountain Weather Forecast

Issued: 2:22 PM PST Sunday, March 24, 2024
by Dallas Glass

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

Weather Synopsis for Sunday night through Tuesday

There's plenty of sunshine in the Olympics, North Cascades, and places east of the Crest this afternoon. Areas from Hwy 2 south along the west slopes just can't seem to shake the clouds. A weak high pressure ridge passing overhead has pushed most of the showers south, with a few flurries still falling in the West South and Mt Hood zones. 

After a dry start to the evening, onshore flow will draw clouds into the mountains from an approaching cold front. Eventually, enough moisture piles up along the west slopes of the Cascades to wring out a few light showers, mainly after midnight. Any precipitation will struggle to make it over Crest. This pattern continues Monday morning as the weak front slowly approaches. This isn't a very strong storm. While temperatures will fall, snowlevels shouldn't make it much below about 3000ft. The front finally crosses over the Cascades late in the afternoon and early evening, helping showers venture further east. 

By Tuesday morning, lingering moisture and onshore flow should keep the west slopes cloudy and drippy. As the day progresses, the trend will be for drying and clearing. Most places should see significant sunbreaks by the afternoon, with more ample blue sky east of the mountains. 

Weather Forecast

Olympics
Sunday Night Increasing clouds. Showers developing in the western Olympics.
Cloudy with generally light rain and snow.
West North
Sunday Night Mostly clear in the evening, then increasing clouds. Showers developing after midnight.
Cloudy with light rain and snow.
West Central
Sunday Night Mostly clear in the evening, then increasing clouds. Showers developing after midnight. Winds becoming SW moderate.
Cloudy with light to moderate precipitation. Light to moderate SW winds decreasing slightly.
West South
Sunday Night Partly to mostly cloudy in the evening, then increasing clouds. A few showers possible after midnight. Light to moderate W winds.
Cloudy with generally light rain and snow. Light to moderate W winds.
Stevens Pass
Sunday Night Partly cloudy in the evening, then clouds increasing. A few light showers mainly after midnight. Light W winds.
Cloudy with light rain and snow. Light W winds.
Snoqualmie Pass
Sunday Night Partly cloudy in the evening, then increasing clouds. Light showers mainly after midnight. Light to moderate W winds increasing.
Cloudy with generally light precipitation. Light to moderate W winds decreasing.
East North
Sunday Night Mostly clear in the evening, then increasing clouds overnight. A few sprinkles possible near the crest. NW winds becoming W light to moderate.
Mostly cloudy with a few light showers possible, mainly near the crest. Light to moderate W winds decreasing.
East Central
Sunday Night Mostly clear in the evening, then increasing clouds. A few sprinkles possible near the crest after midnight. Light to moderate WNW winds becoming W.
Mostly cloudy with light showers mainly near the crest. Light to moderate W winds.
East South
Sunday Night Mostly clear in the evening, then increasing clouds. A few sprinkles possible near the crest. Light to moderate WNW winds becoming W.
Mostly cloudy with a few showers mainly near the crest. Moderate W winds decreasing slightly.
Mt. Hood
Sunday Night Becoming cloudy with generally light rain and snow. Moderate WNW winds turning W.
Cloudy with light to occasionally moderate rain and snow. Moderate W winds becoming strong and gusty.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Sunday Evening Snow Level None' None' None' None' 4500' 4500' None' 4500'
Sunday Night Snow Level None' None' None' None' 3500' 3500' None' 3500'
Monday Morning Snow Level None' None' None' None' 3000' 3000' None' 3000'
Monday Afternoon Snow Level None' None' None' None' 3500' 4000' None' 4000'
Monday Evening Snow Level None' None' None' None' 3500' 3500' None' 4000'
Monday Night Snow Level None' None' None' None' 3000' 3000' None' 3000'
Tuesday Morning Snow Level None' None' None' None' 3000' 3000' None' 3000'
Hurricane Ridge Elevation
Sunday Evening Snow Level
None'
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Mt. Baker Elevation
Sunday Evening Snow Level
None'
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Washington Pass Elevation
Sunday Evening Snow Level
None'
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Leavenworth Elevation
Sunday Evening Snow Level
None'
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Stevens Pass Elevation
Sunday Evening Snow Level
4500'
Sunday Night Snow Level
3500'
Monday Morning Snow Level
3000'
Monday Afternoon Snow Level
3500'
Monday Evening Snow Level
3500'
Monday Night Snow Level
3000'
Tuesday Morning Snow Level
3000'
Tuesday Afternoon Snow Level
3000'
Snoqualmie Pass Elevation
Sunday Evening Snow Level
4500'
Sunday Night Snow Level
3500'
Monday Morning Snow Level
3000'
Monday Afternoon Snow Level
4000'
Monday Evening Snow Level
3500'
Monday Night Snow Level
3000'
Tuesday Morning Snow Level
3000'
Tuesday Afternoon Snow Level
3000'
Mt. Rainier & Crystal Elevation
Sunday Evening Snow Level
None'
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Mt. Hood Elevation
Sunday Evening Snow Level
4500'
Sunday Night Snow Level
3500'
Monday Morning Snow Level
3000'
Monday Afternoon Snow Level
4000'
Monday Evening Snow Level
4000'
Monday Night Snow Level
3000'
Tuesday Morning Snow Level
3000'
Tuesday 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

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

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Sunday Evening --- None - None --- None - None --- None - None --- None - None WNW None - None
Sunday Night --- None - None --- None - None --- None - None --- None - None W None - None
Monday Morning --- None - None --- None - None --- None - None --- None - None W None - None
Hurricane Ridge Elevation
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Baker Elevation
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Stevens and Snoqualmie Pass Elevation
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Rainier Elevation
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Hood Elevation
Sunday Evening WNW None - None
Sunday Night W None - None
Monday Morning W None - None
Monday Afternoon W None - None
Hurricane Ridge Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Baker Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Rainier Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Hood Direction - Speed
Sunday Evening WNW None - None
Sunday Night W None - None
Monday Morning W None - None
Monday Afternoon W 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 Tuesday night through Thursday

A transient high pressure ridge passes overhead Tuesday afternoon/evening and helps most areas dry out ahead of a more substantial winter storm. Clouds should begin to thicken and lower overnight as the system approaches. Precipitation spreads across the region from SW to NE Wednesday with periods of heavy rain/snow and strong and gusty S-SW winds. Post-frontal showers focus on the west slopes of the Cascades and Olympics Wednesday night and Thursday as the trough sags further south along the California coast. 

Extended Snow/Freezing Levels

Mt. Baker Snoqualmie Pass Mt. Hood Easterly Flow *
Tuesday Night Snow Level None' - None' None' - None' None' - None' *
Wednesday Snow Level None' - None' None' - None' None' - None' *
Wednesday Night Snow Level None' - None' None' - None' None' - None' *
Mt. Baker Elevation
Tuesday Night Snow Level
None' - None'
(Easterly Flow *)
Wednesday Snow Level
None' - None'
(Easterly Flow *)
Wednesday Night Snow Level
None' - None'
(Easterly Flow *)
Thursday Snow Level
None' - None'
Snoqualmie Pass Elevation
Tuesday Night Snow Level
None' - None'
(Easterly Flow *)
Wednesday Snow Level
None' - None'
(Easterly Flow *)
Wednesday Night Snow Level
None' - None'
(Easterly Flow *)
Thursday Snow Level
None' - None'
Mt. Hood Elevation
Tuesday Night Snow Level
None' - None'
(Easterly Flow *)
Wednesday Snow Level
None' - None'
(Easterly Flow *)
Wednesday Night Snow Level
None' - None'
(Easterly Flow *)
Thursday 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 March 24, 2024

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