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Mountain Weather Forecast

Issued: 2:13 PM PST Sunday, March 3, 2024
by Robert Hahn

Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather

Weather Synopsis for Sunday night through Tuesday

The cold upper-level trough responsible for cold wintry weather and snow showers remains retains its grip through Monday night. A weak upper level and associated surface circulation center embedded within the broader trough shifts eastward through the straight of Juan De Fuca Sunday night. The associated front-like feature over the Cascades Sunday afternoon shifts eastward. Light to moderate snow showers continue to circulate around this feature, focusing on the SW through SE slopes of the Olympics and the west slopes of the Cascades with the most spillover to the E slopes of the Cascades during the evening hours.

The track of the low center maintains southerly winds in the Mt Baker area and we anticipate convergence to form with an associated moderate band of snowfall in this vicinity early Monday morning before convergence drops southward toward the Skagit Valley and weakens. Elsewhere, expect light to occasionally moderate snow showers along the west slopes of the Cascades on Monday. Expect an uptick in ridgeline winds into the 15-20 mph range south of the low center's track (i.e. central and southern Cascades).

Monday night, light snow showers diminish from north to south as a final lobe of the trough pivots through the area and skies begin to clear. Sunday night through Monday night maintains the diurnal pattern of snow levels varying form sea level to 1500 ft (with freezing levels peaking in the 2500 ft range during drier periods).

Tuesday features plenty of sunshine as upper-level flow shifts NWerly on the back side of the trough. Expect light winds and freezing levels around 1500-2500 ft in the afternoon.

 

Weather Forecast

Olympics
Sunday Night Cloudy with widespread snow showers during the evening (light around Hurricane Ridge, moderate southern and western Olympics), tapering overnight.
Mostly cloudy with scattered light snow showers and a slight chance of light upslope snowfall for the northern Olympics in the afternoon.
West North
Sunday Night Moderate snow.
Moderate (locally heavy) snow or snow showers, decreasing in the afternoon.
West Central
Sunday Night Periods of light to moderate snow, increasing overnight.
Moderate snow through the morning hours, becoming light and showery by the afternoon. Moderate ridgeline winds at times.
West South
Sunday Night Periods of light to moderate snow (heaviest at Mt St Helens and Paradise).
Light to moderate snow showers.
Stevens Pass
Sunday Night Periods of light snow. Light ridgeline and W wind at the Pass.
Decreasing light snow showers. Light to moderate ridgeline and increasing light W wind at the Pass.
Snoqualmie Pass
Sunday Night Periods of light snow. Light ridgeline and W wind at the Pass.
Decreasing light snow showers. Increasing moderate ridgeline and light to occasionally moderate W wind at the Pass.
East North
Sunday Night Light snow showers.
Light snow showers.
East Central
Sunday Night Light snow showers decreasing overnight. Ridgeline winds become moderate at times during the early morning hours.
Light snow showers near the Cascade Crest. Moderate ridgeline winds.
East South
Sunday Night Light snow showers.
Light snow showers near the Cascade Crest.
Mt. Hood
Sunday Night Moderate snow showers. Moderate ridgeline winds.
Light to moderate snow showers. Decreasing light to 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
Sunday Evening Snow Level None' None' None' None' 1000' 1000' None' 1000'
Sunday Night Snow Level None' None' None' None' 500' 500' None' 500'
Monday Morning Snow Level None' None' None' None' 0' 0' None' 500'
Monday Afternoon Snow Level None' None' None' None' 500' 500' None' 1000'
Monday Evening Snow Level None' None' None' None' 500' 500' None' 1000'
Monday Night Snow Level None' None' None' None' 0' 0' None' 500'
Tuesday Morning Snow Level None' None' None' None' 500' 500' None' 500'
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
1000'
Sunday Night Snow Level
500'
Monday Morning Snow Level
0'
Monday Afternoon Snow Level
500'
Monday Evening Snow Level
500'
Monday Night Snow Level
0'
Tuesday Morning Snow Level
500'
Tuesday Afternoon Snow Level
2000'
Snoqualmie Pass Elevation
Sunday Evening Snow Level
1000'
Sunday Night Snow Level
500'
Monday Morning Snow Level
0'
Monday Afternoon Snow Level
500'
Monday Evening Snow Level
500'
Monday Night Snow Level
0'
Tuesday Morning Snow Level
500'
Tuesday Afternoon Snow Level
2000'
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
1000'
Sunday Night Snow Level
500'
Monday Morning Snow Level
500'
Monday Afternoon Snow Level
1000'
Monday Evening Snow Level
1000'
Monday Night Snow Level
500'
Tuesday Morning Snow Level
500'
Tuesday Afternoon Snow Level
3000'

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

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 W None - None
Sunday Night --- None - None --- None - None --- None - None --- None - None WSW None - None
Monday Morning --- None - None --- None - None --- None - None --- None - None WSW 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 W None - None
Sunday Night WSW None - None
Monday Morning WSW None - None
Monday Afternoon WSW 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 W None - None
Sunday Night WSW None - None
Monday Morning WSW None - None
Monday Afternoon WSW 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.

Free Winds at 9000' (mph)

Mt. Baker Washington Pass Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Sunday Evening --- None - None --- None - None --- None - None --- None - None --- None - None
Sunday Night --- None - None --- None - None --- None - None --- None - None --- None - None
Monday Morning --- None - None --- None - None --- None - None --- None - None --- None - None
Mt. Baker Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Washington Pass 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 --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None

Extended Weather Synopsis for Tuesday night through Thursday

Mostly dry and cold NW flow continues Tuesday night through Wednesday night. A weak ridge moves into the area on Thursday into Thursday night. A stronger system begins to brush NW Washington on Friday. Expect temperatures to start the extended forecast well below seasonal norms, but return to average late in the week.

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'
Wednesday Snow Level
None' - None'
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Snoqualmie Pass Elevation
Tuesday Night Snow Level
None' - None'
Wednesday Snow Level
None' - None'
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Mt. Hood Elevation
Tuesday Night Snow Level
None' - None'
Wednesday Snow Level
None' - None'
Wednesday Night Snow Level
None' - None'
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 Free Winds 9k I Extended Weather

Previous forecast from March 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.