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Mountain Weather Forecast

Issued: 1:41 PM PST Saturday, February 3, 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 Saturday night through Monday

Split flow in the jet stream continues to send major storms north and south of the region while leaving us with relatively benign weather. This pattern should hold as we wrap up the weekend. 

Expect a generally dry, calm, and cloudy night across the mountains. Patchy low clouds and fog could form in the mountain valleys and passes. A few very light upslope snow showers might sneak into the East North zone and bring a slight dusting to areas near and north of Lake Chelan. 

On Sunday, upper air winds shift more SE and will draw clouds and moisture into the area from central Washington. This should result in overcast skies for locations along and east of the Crest and near Mt Hood. A few snow showers continue for the east slopes of the Cascades north of Hwy 2, but these flurries shouldn't amount to much. For areas further west, even if you start the day cloudy, expect a bit more sunshine by the afternoon. The biggest weather impact on Sunday could be increasing E-SE winds. Breezy conditions will develop near the Crest and in the mountain Passes. 

A low-pressure system lifting northward from California Sunday night will spin additional moisture into the area. With SE flow aloft, this will send the bulk of the precipitation into the Mt Hood, East South, and East Central zones. Expect generally light snow showers to move from south to north on both sides of the Cascades. The highest accumulations should occur in the southern half of the forecast region through Monday afternoon. 

Weather Forecast

Olympics
Saturday Night Partly cloudy with some low clouds/fog.
Becoming mostly sunny.
West North
Saturday Night Partly to mostly cloudy with some low clouds/fog forming.
Mostly cloudy in the morning becoming sunnier in the afternoon.
West Central
Saturday Night Partly to mostly cloudy with some low clouds/fog.
Mostly cloudy in the morning, becoming sunnier by mid-day.
West South
Saturday Night Mostly cloudy with some low clouds/fog forming.
Becoming partly cloudy to mostly sunny. Passing bands of high clouds. SE winds becoming light to moderate.
Stevens Pass
Saturday Night Mostly cloudy with low clouds/fog. Light E flow developing overnight.
Cloudy in the morning with increasing sunshine in the afternoon. Light E winds becoming moderate later in the day.
Snoqualmie Pass
Saturday Night Mostly cloudy with areas of low clouds/fog. E flow developing overnight.
Mostly cloudy in the morning becoming mostly sunny. Light E winds becoming moderate in the afternoon.
East North
Saturday Night Cloudy with light upslope snow showers possible.
Mostly cloudy with a few small sun breaks. Light upslope snow showers.
East Central
Saturday Night Cloudy with areas of low clouds/fog. A few flurries possible near and north of Hwy 2.
Mostly cloudy with a few small sun breaks. Light upslope snow showers possible, particularly near and north of Hwy 2. Winds becoming SE light to moderate.
East South
Saturday Night Partly to mostly cloudy with patchy low clouds/fog.
Becoming cloudy. A few flurries possible. SE winds becoming light to moderate.
Mt. Hood
Saturday Night Mostly clear with low clouds/fog in places.
Mostly sunny becoming overcast. SE winds increasing significantly and becoming moderate to strong.

Snow/Freezing Level (ft)

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

* 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

Saturday Night Sunday Sunday Night Monday
4 pm - 4 am 4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge 0 0 0 LT 0.10
Mt Baker Ski Area 0 0 0 LT 0.10
Mt. Loop - Barlow Pass 0 0 0 LT 0.10
Stevens Pass 0 0 LT 0.10 LT 0.10
Snoqualmie Pass 0 0 LT 0.10 LT 0.10
Crystal Mt 0 0 LT 0.25 LT 0.10
Paradise 0 0 LT 0.25 LT 0.25
White Pass 0 0 LT 0.25 LT 0.25
Washington Pass LT 0.10 LT 0.10 LT 0.10 LT 0.25
Mission Ridge 0 LT 0.10 0.25 LT 0.25
Salmon la Sac - Gallagher Head 0 0 LT 0.10 LT 0.25
Tieton River - Darland Mt. 0 0 0.25 LT 0.25
Mt Hood Meadows 0 0 0.25 - 0.50 0.25
0 0 0.25 - 0.50 0.25
Hurricane Ridge Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night 0
Monday LT 0.10
Mt Baker Ski Area Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night 0
Monday LT 0.10
Mt. Loop - Barlow Pass Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night 0
Monday LT 0.10
Stevens Pass Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night LT 0.10
Monday LT 0.10
Snoqualmie Pass Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night LT 0.10
Monday LT 0.10
Crystal Mt Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night LT 0.25
Monday LT 0.10
Paradise Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night LT 0.25
Monday LT 0.25
White Pass Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night LT 0.25
Monday LT 0.25
Washington Pass Precipitation Forecast
Saturday Night LT 0.10
Sunday LT 0.10
Sunday Night LT 0.10
Monday LT 0.25
Mission Ridge Precipitation Forecast
Saturday Night 0
Sunday LT 0.10
Sunday Night 0.25
Monday LT 0.25
Salmon la Sac - Gallagher Head Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night LT 0.10
Monday LT 0.25
Tieton River - Darland Mt. Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night 0.25
Monday LT 0.25
Mt Hood Meadows Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night 0.25 - 0.50
Monday 0.25
Timberline Precipitation Forecast
Saturday Night 0
Sunday 0
Sunday Night 0.25 - 0.50
Monday 0.25

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Saturday Evening --- None - None --- None - None --- None - None --- None - None VAR None - None
Saturday Night --- None - None --- None - None --- None - None --- None - None VAR None - None
Sunday Morning --- None - None --- None - None --- None - None --- None - None SE None - None
Hurricane Ridge Elevation
Saturday Evening --- None - None
Saturday Night --- None - None
Sunday Morning --- None - None
Sunday Afternoon --- None - None
Mt. Baker Elevation
Saturday Evening --- None - None
Saturday Night --- None - None
Sunday Morning --- None - None
Sunday Afternoon --- None - None
Stevens and Snoqualmie Pass Elevation
Saturday Evening --- None - None
Saturday Night --- None - None
Sunday Morning --- None - None
Sunday Afternoon --- None - None
Mt. Rainier Elevation
Saturday Evening --- None - None
Saturday Night --- None - None
Sunday Morning --- None - None
Sunday Afternoon --- None - None
Mt. Hood Elevation
Saturday Evening VAR None - None
Saturday Night VAR None - None
Sunday Morning SE None - None
Sunday Afternoon SE None - None
Hurricane Ridge Direction - Speed
Saturday Evening --- None - None
Saturday Night --- None - None
Sunday Morning --- None - None
Sunday Afternoon --- None - None
Mt. Baker Direction - Speed
Saturday Evening --- None - None
Saturday Night --- None - None
Sunday Morning --- None - None
Sunday Afternoon --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Saturday Evening --- None - None
Saturday Night --- None - None
Sunday Morning --- None - None
Sunday Afternoon --- None - None
Mt. Rainier Direction - Speed
Saturday Evening --- None - None
Saturday Night --- None - None
Sunday Morning --- None - None
Sunday Afternoon --- None - None
Mt. Hood Direction - Speed
Saturday Evening VAR None - None
Saturday Night VAR None - None
Sunday Morning SE None - None
Sunday Afternoon SE 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 Monday night through Wednesday

Late Monday, a narrow open trough starts to develop over the Pacific Northwest. This should allow a few light showers to linger in the mountains through Tuesday. An approaching storm slides down the British Columbia coastline overnight and will help bring a better chance of significant precipitation to the region. Right now, the moisture tap looks thin, so this won't likely produce impressive snow totals. However, it should help temperatures drop and open the door for additional disturbances later in the week. 

Extended Snow/Freezing Levels

Mt. Baker Snoqualmie Pass Mt. Hood Easterly Flow *
Monday Night Snow Level None' - None' None' - None' None' - None' *
Tuesday Snow Level None' - None' None' - None' None' - None'
Tuesday Night Snow Level None' - None' None' - None' None' - None'
Mt. Baker Elevation
Monday Night Snow Level
None' - None'
(Easterly Flow *)
Tuesday Snow Level
None' - None'
Tuesday Night Snow Level
None' - None'
Wednesday Snow Level
None' - None'
(Easterly Flow *)
Snoqualmie Pass Elevation
Monday Night Snow Level
None' - None'
(Easterly Flow *)
Tuesday Snow Level
None' - None'
Tuesday Night Snow Level
None' - None'
Wednesday Snow Level
None' - None'
(Easterly Flow *)
Mt. Hood Elevation
Monday Night Snow Level
None' - None'
(Easterly Flow *)
Tuesday Snow Level
None' - None'
Tuesday Night Snow Level
None' - None'
Wednesday Snow Level
None' - None'
(Easterly Flow *)

* 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 Feb. 3, 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.