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Mountain Weather Forecast

Issued: 7:03 AM PST Friday, March 1, 2024
by Dennis D'Amico

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

Weather Synopsis for Friday & Saturday

While the calendar has turned to March and the first day of meteorological spring, the weather pattern has firmly decided it's still winter.  An upper-level trough over the region will be the dominant weather feature over the next few days.  While the storm track pummels California with heavy precipitation, we'll see showers and low snow levels. 

Today, showers will be focused on the Olympic peninsula and more scattered over the Cascades this morning. An upper level disturbance will enhance shower activity this afternoon through this evening and turn the flow aloft more southerly.  While the precipitation amounts are not impressive by PNW standards, low density snow will easily squeeze out a few inches with prolonged showers.  The air mass is unstable, so you may see graupel mix in during the afternoon and heavier showers. Snow levels will rise to around 1500-2000' each day and with freezing levels 500-1000' higher and fall to near sea-level overnight.  Temperatures will fall rapidly with height, so if you're planning to push into upper elevations, be prepared for temperatures in the teens. We'll see periods of moderate to locally strong ridgeline winds.

We'll see a compact low pressure system bring more showers and bring a ramp up in wind Friday night, followed by a switch to WSW winds on Saturday. There's low confidence in the timing of individual weather features in this pattern. 

Weather Forecast

Olympics
Friday Cloudy with light to moderate snow showers. Heaviest showers southwest slopes of the Olymipcs. Moderate ridgeline winds.
Cloudy with light to moderate snow showers. Heaviest showers southwest slopes of the Olymipcs. Periods of moderate ridgeline winds.
West North
Friday Mostly cloudy with light snow showers this morning, then becoming light to moderate showers in the afternoon. Moderate ridgeline winds.
Mostly cloudy with scattered light to occasionally moderate snow showers. Periods of moderate ridgeline winds.
West Central
Friday Mostly cloudy with light snow showers this morning, then becoming light to occasionally moderate showers in the afternoon. Moderate ridgeline winds.
Mostly cloudy with scattered light to occasionally moderate snow showers. Periods of moderate ridgeline winds.
West South
Friday Mostly cloudy with light to occasionally moderate showers. Moderate to strong ridgeline winds.
Mostly cloudy with scattered light to occasionally moderate snow showers. Moderate to strong ridgeline winds.
Stevens Pass
Friday Mostly cloudy with light to occasionally moderate scattered snow showers. Periods of moderate Pass level and ridgeline S-SE winds.
Mostly cloudy with scattered light to occasionally moderate snow showers. Moderate SE Pass level and ridgeline winds.
Snoqualmie Pass
Friday Mostly cloudy with light to occasionally moderate scattered snow showers. Periods of moderate Pass level and ridgeline S-SE winds.
Mostly cloudy with scattered light to occasionally moderate snow showers. Moderate SE Pass level and ridgeline winds.
East North
Friday Mostly cloudy with light scattered snow showers becoming light to occasionally moderate in the afternoon. Moderate ridgeline winds.
Mostly cloudy with scattered light snow showers. Periods of moderate ridgeline winds.
East Central
Friday Mostly cloudy with light scattered snow showers becoming light to occasionally moderate midday. Moderate ridgeline winds.
Mostly cloudy with scattered light to occasionally moderate snow showers. Moderate ridgeline winds.
East South
Friday Mostly cloudy with light scattered snow showers becoming light to occasionally moderate midday. Moderate ridgeline winds.
Mostly cloudy with scattered light to occasionally moderate snow showers. Moderate ridgeline winds.
Mt. Hood
Friday Mostly cloudy with light to occasionally moderate snow showers. Strong ridgeline winds.
Mostly cloudy with scattered light to occasionally moderate snow showers. Moderate to strong ridgeline winds.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Friday Morning Snow Level None' None' None' None' 500' 500' None' 1000'
Friday Afternoon Snow Level None' None' None' None' 2000' 2000' None' 2500'
Friday Evening Snow Level None' None' None' None' 500' 500' None' 500'
Friday Night Snow Level None' None' None' None' 0' 0' None' 0'
Saturday Morning Snow Level None' None' None' None' 500' 500' None' 500'
Hurricane Ridge Elevation
Friday Morning Snow Level
None'
Friday Afternoon Snow Level
None'
Friday Evening Snow Level
None'
Friday Night Snow Level
None'
Saturday Morning Snow Level
None'
Saturday Afternoon Snow Level
None'
Mt. Baker Elevation
Friday Morning Snow Level
None'
Friday Afternoon Snow Level
None'
Friday Evening Snow Level
None'
Friday Night Snow Level
None'
Saturday Morning Snow Level
None'
Saturday Afternoon Snow Level
None'
Washington Pass Elevation
Friday Morning Snow Level
None'
Friday Afternoon Snow Level
None'
Friday Evening Snow Level
None'
Friday Night Snow Level
None'
Saturday Morning Snow Level
None'
Saturday Afternoon Snow Level
None'
Leavenworth Elevation
Friday Morning Snow Level
None'
Friday Afternoon Snow Level
None'
Friday Evening Snow Level
None'
Friday Night Snow Level
None'
Saturday Morning Snow Level
None'
Saturday Afternoon Snow Level
None'
Stevens Pass Elevation
Friday Morning Snow Level
500'
Friday Afternoon Snow Level
2000'
Friday Evening Snow Level
500'
Friday Night Snow Level
0'
Saturday Morning Snow Level
500'
Saturday Afternoon Snow Level
1500'
Snoqualmie Pass Elevation
Friday Morning Snow Level
500'
Friday Afternoon Snow Level
2000'
Friday Evening Snow Level
500'
Friday Night Snow Level
0'
Saturday Morning Snow Level
500'
Saturday Afternoon Snow Level
1500'
Mt. Rainier & Crystal Elevation
Friday Morning Snow Level
None'
Friday Afternoon Snow Level
None'
Friday Evening Snow Level
None'
Friday Night Snow Level
None'
Saturday Morning Snow Level
None'
Saturday Afternoon Snow Level
None'
Mt. Hood Elevation
Friday Morning Snow Level
1000'
Friday Afternoon Snow Level
2500'
Friday Evening Snow Level
500'
Friday Night Snow Level
0'
Saturday Morning Snow Level
500'
Saturday Afternoon Snow Level
1500'

* 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

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

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Friday Morning --- None - None --- None - None --- None - None --- None - None SW None - None
Friday Afternoon --- None - None --- None - None --- None - None --- None - None SW None - None
Friday Evening --- None - None --- None - None --- None - None --- None - None SE None - None
Hurricane Ridge Elevation
Friday Morning --- None - None
Friday Afternoon --- None - None
Friday Evening --- None - None
Friday Night --- None - None
Mt. Baker Elevation
Friday Morning --- None - None
Friday Afternoon --- None - None
Friday Evening --- None - None
Friday Night --- None - None
Stevens and Snoqualmie Pass Elevation
Friday Morning --- None - None
Friday Afternoon --- None - None
Friday Evening --- None - None
Friday Night --- None - None
Mt. Rainier Elevation
Friday Morning --- None - None
Friday Afternoon --- None - None
Friday Evening --- None - None
Friday Night --- None - None
Mt. Hood Elevation
Friday Morning SW None - None
Friday Afternoon SW None - None
Friday Evening SE None - None
Friday Night SW None - None
Hurricane Ridge Direction - Speed
Friday Morning --- None - None
Friday Afternoon --- None - None
Friday Evening --- None - None
Friday Night --- None - None
Mt. Baker Direction - Speed
Friday Morning --- None - None
Friday Afternoon --- None - None
Friday Evening --- None - None
Friday Night --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Friday Morning --- None - None
Friday Afternoon --- None - None
Friday Evening --- None - None
Friday Night --- None - None
Mt. Rainier Direction - Speed
Friday Morning --- None - None
Friday Afternoon --- None - None
Friday Evening --- None - None
Friday Night --- None - None
Mt. Hood Direction - Speed
Friday Morning SW None - None
Friday Afternoon SW None - None
Friday Evening SE None - None
Friday 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 Feb. 29, 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.