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Mountain Weather Forecast

Issued: 9:38 AM PST Monday, March 5, 2018
by Dennis D'Amico

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

Weather Synopsis for Monday & Tuesday

The Pacific Northwest will stay in cool NW flow aloft with scattered light snow showers and generally cloudy skies expected for today. An area of convergence west of Stevens Pass this morning will break up during the day. There may be a few sunbreaks poking through in the afternoon. Moderate west winds in the Mt. Hood area will slowly decrease this afternoon. 

Flat upper level ridging will move over the area Tuesday, providing us with a dry and fair weather day.  Afternoon cumulus buildup looks to be trapped near ridgecrest as warmer air moves in aloft and prevents a full clearing trend.  The other weather impact will be slightly warmer temperatures along with the early March sunshine.  Dry weather will continue Tuesday night. 

Weather Forecast

Olympics
Monday Cloudy with scattered light snow showers this morning. Mostly cloudy with light isolated showers in the afternoon.
Monday Night Partly to mostly clear.
Tuesday Mostly clear in the morning, becoming partly sunny with cumulus building in the afternoon. Slight warming trend.
Mostly clear.
Washington Cascades near and west of the Crest including Stevens, Snoqualmie and White Passes
Monday Cloudy with scattered light snow showers, locally moderate near a convergence zone this morning west of Stevens Pass. Mostly cloudy with light isolated showers in the afternoon.
Monday Night Partly to mostly clear.
Tuesday Mostly clear in the morning, becoming partly sunny with cumulus building in the afternoon. Slight warming trend.
Mostly clear.
East Slopes of the Washington Cascades
Monday Cloudy with isolated light snow showers near the Cascade crest this morning, becoming mostly cloudy with light isolated showers in the afternoon.
Monday Night Mostly clear.
Tuesday Mostly clear in the morning, becoming partly sunny with cumulus building in the afternoon near the Cascade Crest. Slight warming trend.
Mostly clear.
Mt. Hood
Monday Cloudy with scattered light snow showers this morning. Mostly cloudy with light isolated showers in the afternoon. Moderate West winds decreasing in the afternoon.
Monday Night Partly to mostly clear.
Tuesday Mostly clear in the morning, becoming partly sunny with cumulus building in the afternoon. Slight warming trend.
Mostly clear.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Monday Morning Snow Level 500' 500' 0' None' None' 1000' None' 1500'
Monday Afternoon Snow Level 2000' 1500' 1500' None' None' 2000' None' 3000'
Monday Night Snow Level 1500' 1500' 500' None' None' 1000' None' 2500'
Tuesday Morning Freezing Level 1500' 1500' 1000' None' None' 1000' None' 2500'
Tuesday Afternoon Freezing Level 3500' 3000' 4000' None' None' 4000' None' 5000'
Hurricane Ridge Elevation
Monday Morning Snow Level
500'
Monday Afternoon Snow Level
2000'
Monday Night Snow Level
1500'
Tuesday Morning Freezing Level
1500'
Tuesday Afternoon Freezing Level
3500'
Tuesday Night Freezing Level
3500'
Mt. Baker Elevation
Monday Morning Snow Level
500'
Monday Afternoon Snow Level
1500'
Monday Night Snow Level
1500'
Tuesday Morning Freezing Level
1500'
Tuesday Afternoon Freezing Level
3000'
Tuesday Night Freezing Level
2500'
Washington Pass Elevation
Monday Morning Snow Level
0'
Monday Afternoon Snow Level
1500'
Monday Night Snow Level
500'
Tuesday Morning Freezing Level
1000'
Tuesday Afternoon Freezing Level
4000'
Tuesday Night Freezing Level
500'
Leavenworth Elevation
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Freezing Level
None'
Tuesday Afternoon Freezing Level
None'
Tuesday Night Freezing Level
None'
Stevens Pass Elevation
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Freezing Level
None'
Tuesday Afternoon Freezing Level
None'
Tuesday Night Freezing Level
None'
Snoqualmie Pass Elevation
Monday Morning Snow Level
1000'
Monday Afternoon Snow Level
2000'
Monday Night Snow Level
1000'
Tuesday Morning Freezing Level
1000'
Tuesday Afternoon Freezing Level
4000'
Tuesday Night Freezing Level
2000'
Mt. Rainier & Crystal Elevation
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Freezing Level
None'
Tuesday Afternoon Freezing Level
None'
Tuesday Night Freezing Level
None'
Mt. Hood Elevation
Monday Morning Snow Level
1500'
Monday Afternoon Snow Level
3000'
Monday Night Snow Level
2500'
Tuesday Morning Freezing Level
2500'
Tuesday Afternoon Freezing Level
5000'
Tuesday Night Freezing Level
4000'

* 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 Wednesday
Hurricane Ridge LT 0.10 0
Mt Baker Ski Area LT 0.25 0
Washington Pass LT 0.10 0
Stevens Pass LT 0.25 0
Snoqualmie Pass LT 0.25 0
Mission Ridge 0 0
Crystal Mt LT 0.10 0
Paradise LT 0.25 0
White Pass LT 0.25 0
Mt Hood Meadows LT 0.25 0
0.25 0
Hurricane Ridge Precipitation Forecast
Tuesday LT 0.10
Wednesday 0
Mt Baker Ski Area Precipitation Forecast
Tuesday LT 0.25
Wednesday 0
Washington Pass Precipitation Forecast
Tuesday LT 0.10
Wednesday 0
Stevens Pass Precipitation Forecast
Tuesday LT 0.25
Wednesday 0
Snoqualmie Pass Precipitation Forecast
Tuesday LT 0.25
Wednesday 0
Mission Ridge Precipitation Forecast
Tuesday 0
Wednesday 0
Crystal Mt Precipitation Forecast
Tuesday LT 0.10
Wednesday 0
Paradise Precipitation Forecast
Tuesday LT 0.25
Wednesday 0
White Pass Precipitation Forecast
Tuesday LT 0.25
Wednesday 0
Mt Hood Meadows Precipitation Forecast
Tuesday LT 0.25
Wednesday 0
Timberline Precipitation Forecast
Tuesday 0.25
Wednesday 0

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Monday Morning W 5 - 15 SW 5 - 15 W 10 - 20 --- None - None SW 151 - 30
Monday Afternoon W 5 - 15 SW 0 - 10 WSW 5 - 15 --- None - None W 10 - 20
Monday Night W 0 - 10 W 0 - 10 W 0 - 10 --- None - None W 0 - 10
Tuesday Morning WNW 5 - 15 W 0 - 10 WNW 5 - 15 --- None - None W 5 - 15
Tuesday Afternoon W 5 - 15 SW 5 - 15 WSW 5 - 15 --- None - None W 10 - 20
Hurricane Ridge Elevation
Monday Morning W 5 - 15
Monday Afternoon W 5 - 15
Monday Night W 0 - 10
Tuesday Morning WNW 5 - 15
Tuesday Afternoon W 5 - 15
Tuesday Night SW 10 - 20
Mt. Baker Elevation
Monday Morning SW 5 - 15
Monday Afternoon SW 0 - 10
Monday Night W 0 - 10
Tuesday Morning W 0 - 10
Tuesday Afternoon SW 5 - 15
Tuesday Night SW 10 - 20
Stevens and Snoqualmie Pass Elevation
Monday Morning W 10 - 20
Monday Afternoon WSW 5 - 15
Monday Night W 0 - 10
Tuesday Morning WNW 5 - 15
Tuesday Afternoon WSW 5 - 15
Tuesday Night SW 10 - 20
Mt. Rainier Elevation
Monday Morning --- None - None
Monday Afternoon --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Night --- None - None
Mt. Hood Elevation
Monday Morning SW 151 - 30
Monday Afternoon W 10 - 20
Monday Night W 0 - 10
Tuesday Morning W 5 - 15
Tuesday Afternoon W 10 - 20
Tuesday Night SW 15 - 25
Hurricane Ridge Direction - Speed
Monday Morning W 5 - 15
Monday Afternoon W 5 - 15
Monday Night W 0 - 10
Tuesday Morning WNW 5 - 15
Tuesday Afternoon W 5 - 15
Tuesday Night SW 10 - 20
Mt. Baker Direction - Speed
Monday Morning SW 5 - 15
Monday Afternoon SW 0 - 10
Monday Night W 0 - 10
Tuesday Morning W 0 - 10
Tuesday Afternoon SW 5 - 15
Tuesday Night SW 10 - 20
Stevens and Snoqualmie Pass Direction - Speed
Monday Morning W 10 - 20
Monday Afternoon WSW 5 - 15
Monday Night W 0 - 10
Tuesday Morning WNW 5 - 15
Tuesday Afternoon WSW 5 - 15
Tuesday Night SW 10 - 20
Mt. Rainier Direction - Speed
Monday Morning --- None - None
Monday Afternoon --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Night --- None - None
Mt. Hood Direction - Speed
Monday Morning SW 151 - 30
Monday Afternoon W 10 - 20
Monday Night W 0 - 10
Tuesday Morning W 5 - 15
Tuesday Afternoon W 10 - 20
Tuesday Night SW 15 - 25

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
Monday Morning W 10 - 20 W 15 - 25 W 15 - 25 --- None - None W 20 - 30
Monday Afternoon W 10 - 20 W 10 - 20 WNW 15 - 25 --- None - None WNW 15 - 25
Monday Night W 5 - 15 W 5 - 15 WNW 5 - 15 --- None - None W 10 - 20
Tuesday Morning WNW 5 - 15 W 0 - 10 WNW 5 - 15 --- None - None W 5 - 15
Tuesday Afternoon W 5 - 15 SW 5 - 15 WSW 5 - 15 --- None - None W 10 - 20
Mt. Baker Direction - Speed
Monday Morning W 10 - 20
Monday Afternoon W 10 - 20
Monday Night W 5 - 15
Tuesday Morning WNW 5 - 15
Tuesday Afternoon W 5 - 15
Tuesday Night SW 10 - 20
Washington Pass Direction - Speed
Monday Morning W 15 - 25
Monday Afternoon W 10 - 20
Monday Night W 5 - 15
Tuesday Morning W 0 - 10
Tuesday Afternoon SW 5 - 15
Tuesday Night SW 10 - 20
Stevens and Snoqualmie Pass Direction - Speed
Monday Morning W 15 - 25
Monday Afternoon WNW 15 - 25
Monday Night WNW 5 - 15
Tuesday Morning WNW 5 - 15
Tuesday Afternoon WSW 5 - 15
Tuesday Night SW 10 - 20
Mt. Rainier Direction - Speed
Monday Morning --- None - None
Monday Afternoon --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Night --- None - None
Mt. Hood Direction - Speed
Monday Morning W 20 - 30
Monday Afternoon WNW 15 - 25
Monday Night W 10 - 20
Tuesday Morning W 5 - 15
Tuesday Afternoon W 10 - 20
Tuesday Night SW 5 - 15

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 Free Winds 9k

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.

930 AM: Corrected Typo in East Slopes Forecast.