menu

Mountain Weather Forecast

Issued: 7:22 AM PST Tuesday, March 6, 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 Tuesday & Wednesday

Upper level ridging will build offshore today with a dry and eventually sunny day forecast across the Pacific Northwest. Before the sunshine, a mid level cloud deck is hanging tough around for the Olympics and central and north Cascades this morning while clearer skies are seen further south.  In the cloudier areas, skies should clear later this morning with just some afternoon cumulus buildup expected.  Mostly clear and dry weather will continue overnight. 

Flat upper level ridging will move over the region on Wednesday, with freezing levels rising further. However, a closed upper low well off the California coast will spread mid and high clouds over the region from the south during the day, dampening an otherwise warm day for early March.  A weakening frontal band extending from the low pressure system will pass over the area Wednesday night producing light precipitation totals. 

Weather Forecast

Olympics
Tuesday Mostly cloudy this morning becoming partly to mostly sunny mid-day. Slight warming trend.
Tuesday Night Mostly clear.
Wednesday Mostly cloudy becoming cloudy with increasing mid and high level clouds during the day. Mild.
Light rain and snow developing after midnight.
Washington Cascades near and west of the Crest including Stevens, Snoqualmie and White Passes
Tuesday Mostly cloudy central and north Cascades this morning becoming partly to mostly sunny mid-day. Mostly clear south Cascades becoming mostly sunny in the afternoon. Slight warming trend.
Tuesday Night Mostly clear.
Wednesday Mostly cloudy becoming cloudy with increasing mid and high level clouds during the day. Mild.
Light rain and snow developing after midnight.
East Slopes of the Washington Cascades
Tuesday Mostly cloudy central-east and northeast Cascades near the crest this morning becoming mostly sunny mid-day. Mostly clear southeast Cascades becoming mostly sunny in the afternoon. Slight warming trend.
Tuesday Night Mostly clear.
Wednesday Mostly cloudy becoming cloudy with increasing mid and high level clouds during the day. Mild.
Light rain and snow developing after midnight.
Mt. Hood
Tuesday Mostly clear becoming mostly sunny in the afternoon. Slight warming trend.
Tuesday Night Mostly clear.
Wednesday Mostly cloudy becoming cloudy with increasing mid and high level clouds during the day. Mild.
Light rain and snow developing.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Tuesday Morning Freezing Level 1500' 500' 0' None' None' 1000' None' 2000'
Tuesday Afternoon Freezing Level 3500' 3500' 4000' None' None' 4000' None' 5000'
Tuesday Night Freezing Level 3500' 2000' 500' None' None' 2000' None' 4500'
Wednesday Morning Freezing Level 4500' 3500' 3000' None' None' 4000' None' 6000'
Wednesday Afternoon Freezing Level 7000' 6000' 5500' None' None' 6500' None' 8000'
Hurricane Ridge Elevation
Tuesday Morning Freezing Level
1500'
Tuesday Afternoon Freezing Level
3500'
Tuesday Night Freezing Level
3500'
Wednesday Morning Freezing Level
4500'
Wednesday Afternoon Freezing Level
7000'
Wednesday Night Snow Level
4500'
(Easterly Flow *)
Mt. Baker Elevation
Tuesday Morning Freezing Level
500'
Tuesday Afternoon Freezing Level
3500'
Tuesday Night Freezing Level
2000'
Wednesday Morning Freezing Level
3500'
Wednesday Afternoon Freezing Level
6000'
Wednesday Night Snow Level
4000'
(Easterly Flow *)
Washington Pass Elevation
Tuesday Morning Freezing Level
0'
Tuesday Afternoon Freezing Level
4000'
Tuesday Night Freezing Level
500'
Wednesday Morning Freezing Level
3000'
Wednesday Afternoon Freezing Level
5500'
Wednesday Night Snow Level
3000'
(Easterly Flow *)
Leavenworth Elevation
Tuesday Morning Freezing Level
None'
Tuesday Afternoon Freezing Level
None'
Tuesday Night Freezing Level
None'
Wednesday Morning Freezing Level
None'
Wednesday Afternoon Freezing Level
None'
Wednesday Night Snow Level
None'
(Easterly Flow *)
Stevens Pass Elevation
Tuesday Morning Freezing Level
None'
Tuesday Afternoon Freezing Level
None'
Tuesday Night Freezing Level
None'
Wednesday Morning Freezing Level
None'
Wednesday Afternoon Freezing Level
None'
Wednesday Night Snow Level
None'
(Easterly Flow *)
Snoqualmie Pass Elevation
Tuesday Morning Freezing Level
1000'
Tuesday Afternoon Freezing Level
4000'
Tuesday Night Freezing Level
2000'
Wednesday Morning Freezing Level
4000'
Wednesday Afternoon Freezing Level
6500'
Wednesday Night Snow Level
4000'
(Easterly Flow *)
Mt. Rainier & Crystal Elevation
Tuesday Morning Freezing Level
None'
Tuesday Afternoon Freezing Level
None'
Tuesday Night Freezing Level
None'
Wednesday Morning Freezing Level
None'
Wednesday Afternoon Freezing Level
None'
Wednesday Night Snow Level
None'
(Easterly Flow *)
Mt. Hood Elevation
Tuesday Morning Freezing Level
2000'
Tuesday Afternoon Freezing Level
5000'
Tuesday Night Freezing Level
4500'
Wednesday Morning Freezing Level
6000'
Wednesday Afternoon Freezing Level
8000'
Wednesday Night Snow Level
4500'
(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

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

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Tuesday Morning NW 0 - 10 W 0 - 10 NW 0 - 10 --- None - None W 5 - 15
Tuesday Afternoon VAR 0 - 10 VAR 0 - 10 E 0 - 10 --- None - None E 0 - 10
Tuesday Night E 0 - 10 S 0 - 10 E 5 - 15 --- None - None SE 0 - 10
Wednesday Morning SE 0 - 10 SE 0 - 10 E 5 - 15 --- None - None SE 5 - 15
Wednesday Afternoon S 0 - 10 SE 0 - 10 SE 0 - 10 --- None - None SE 5 - 15
Hurricane Ridge Elevation
Tuesday Morning NW 0 - 10
Tuesday Afternoon VAR 0 - 10
Tuesday Night E 0 - 10
Wednesday Morning SE 0 - 10
Wednesday Afternoon S 0 - 10
Wednesday Night S 10 - 20
Mt. Baker Elevation
Tuesday Morning W 0 - 10
Tuesday Afternoon VAR 0 - 10
Tuesday Night S 0 - 10
Wednesday Morning SE 0 - 10
Wednesday Afternoon SE 0 - 10
Wednesday Night SE 5 - 15
Stevens and Snoqualmie Pass Elevation
Tuesday Morning NW 0 - 10
Tuesday Afternoon E 0 - 10
Tuesday Night E 5 - 15
Wednesday Morning E 5 - 15
Wednesday Afternoon SE 0 - 10
Wednesday Night SE 5 - 15
Mt. Rainier Elevation
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Night --- None - None
Wednesday Morning --- None - None
Wednesday Afternoon --- None - None
Wednesday Night --- None - None
Mt. Hood Elevation
Tuesday Morning W 5 - 15
Tuesday Afternoon E 0 - 10
Tuesday Night SE 0 - 10
Wednesday Morning SE 5 - 15
Wednesday Afternoon SE 5 - 15
Wednesday Night SW 5 - 15
Hurricane Ridge Direction - Speed
Tuesday Morning NW 0 - 10
Tuesday Afternoon VAR 0 - 10
Tuesday Night E 0 - 10
Wednesday Morning SE 0 - 10
Wednesday Afternoon S 0 - 10
Wednesday Night S 10 - 20
Mt. Baker Direction - Speed
Tuesday Morning W 0 - 10
Tuesday Afternoon VAR 0 - 10
Tuesday Night S 0 - 10
Wednesday Morning SE 0 - 10
Wednesday Afternoon SE 0 - 10
Wednesday Night SE 5 - 15
Stevens and Snoqualmie Pass Direction - Speed
Tuesday Morning NW 0 - 10
Tuesday Afternoon E 0 - 10
Tuesday Night E 5 - 15
Wednesday Morning E 5 - 15
Wednesday Afternoon SE 0 - 10
Wednesday Night SE 5 - 15
Mt. Rainier Direction - Speed
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Night --- None - None
Wednesday Morning --- None - None
Wednesday Afternoon --- None - None
Wednesday Night --- None - None
Mt. Hood Direction - Speed
Tuesday Morning W 5 - 15
Tuesday Afternoon E 0 - 10
Tuesday Night SE 0 - 10
Wednesday Morning SE 5 - 15
Wednesday Afternoon SE 5 - 15
Wednesday 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.

Free Winds at 9000' (mph)

Mt. Baker Washington Pass Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Tuesday Morning W 5 - 15 W 5 - 15 WNW 10 - 20 --- None - None W 15 - 25
Tuesday Afternoon W 10 - 20 WSW 5 - 15 W 10 - 20 --- None - None SW 10 - 20
Tuesday Night SW 15 - 25 SW 15 - 25 SW 15 - 25 --- None - None SW 10 - 20
Wednesday Morning SW 10 - 20 SW 10 - 20 SW 15 - 25 --- None - None SW 10 - 20
Wednesday Afternoon SW 15 - 25 SW 15 - 25 SW 15 - 25 --- None - None SSW 15 - 25
Mt. Baker Direction - Speed
Tuesday Morning W 5 - 15
Tuesday Afternoon W 10 - 20
Tuesday Night SW 15 - 25
Wednesday Morning SW 10 - 20
Wednesday Afternoon SW 15 - 25
Wednesday Night SW 15 - 25
Washington Pass Direction - Speed
Tuesday Morning W 5 - 15
Tuesday Afternoon WSW 5 - 15
Tuesday Night SW 15 - 25
Wednesday Morning SW 10 - 20
Wednesday Afternoon SW 15 - 25
Wednesday Night SW 15 - 25
Stevens and Snoqualmie Pass Direction - Speed
Tuesday Morning WNW 10 - 20
Tuesday Afternoon W 10 - 20
Tuesday Night SW 15 - 25
Wednesday Morning SW 15 - 25
Wednesday Afternoon SW 15 - 25
Wednesday Night SW 25 - 35
Mt. Rainier Direction - Speed
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Tuesday Night --- None - None
Wednesday Morning --- None - None
Wednesday Afternoon --- None - None
Wednesday Night --- None - None
Mt. Hood Direction - Speed
Tuesday Morning W 15 - 25
Tuesday Afternoon SW 10 - 20
Tuesday Night SW 10 - 20
Wednesday Morning SW 10 - 20
Wednesday Afternoon SSW 15 - 25
Wednesday Night SW 25 - 35

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.