Issued: 6:58 AM PST Wednesday, January 25, 2017
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 Wednesday & Tuesday

A weak front offshore around 130W will continue to weaken as it runs into upper level ridging centered over the coast. Light showers in northerly flow aloft should mainly affect the west slopes of the Cascades and Olympics today. Skies will remain mostly cloudy with diminishing cloud cover east of the Cascade crest. Mt. Hood stations picked up 1-3" overnight in steady light showers. The upper level ridge should rebuild over the area on Thursday but moisture should remain trapped against the west slopes on Thursday again making for a mostly cloudy day. Overall snow/freezing levels should remain fairly steady with a slight warming trend expected over the next two days.  

Weather Forecast

Olympics, Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes
Wednesday - Wednesday Night

Mostly cloudy with a chance of light rain and snow showers. 

Mt. Hood Area
Wednesday - Wednesday Night

Mostly cloudy with a chance of light rain and snow showers. 

East slopes of the Washington Cascades
Wednesday - Wednesday Night

Mostly cloudy with a chance of light rain and snow showers near the crest. Partly to mostly clear further east of the crest except low clouds lower slopes.  

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Wednesday - Wednesday Night Snow Level 2500' 1500' 1500' ' ' 2000' ' 2500'
Hurricane Ridge Elevation
Wednesday - Wednesday Night Snow Level
2500'
Thursday Freezing Level
2500'
Mt. Baker Elevation
Wednesday - Wednesday Night Snow Level
1500'
Thursday Freezing Level
3500'
Washington Pass Elevation
Wednesday - Wednesday Night Snow Level
1500'
Thursday Freezing Level
2500'
Leavenworth Elevation
Wednesday - Wednesday Night Snow Level
'
Thursday Freezing Level
'
Stevens Pass Elevation
Wednesday - Wednesday Night Snow Level
'
Thursday Freezing Level
'
Snoqualmie Pass Elevation
Wednesday - Wednesday Night Snow Level
2000'
Thursday Freezing Level
2500'
Mt. Rainier & Crystal Elevation
Wednesday - Wednesday Night Snow Level
'
Thursday Freezing Level
'
Mt. Hood Elevation
Wednesday - Wednesday Night Snow Level
2500'
Thursday Freezing 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

Tuesday Tuesday
Hurricane Ridge LT 0.10 LT 0.10
Mt Baker Ski Area LT 0.10 LT 0.10
Washington Pass LT 0.10 LT 0.10
Stevens Pass LT 0.10 LT 0.10
Snoqualmie Pass LT 0.10 LT 0.10
Mission Ridge LT 0.10 LT 0.10
Crystal Mt LT 0.10 LT 0.10
Paradise LT 0.10 LT 0.10
White Pass LT 0.10 LT 0.10
Mt Hood Meadows LT 0.10 LT 0.10
LT 0.10 LT 0.10

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Wednesday - Wednesday Night W 0 - 10 VAR 0 - 10 W 0 - 10 --- - W 0 - 10
Hurricane Ridge Elevation
Wednesday - Wednesday Night W 0 - 10
Thursday - Thursday Night SW 5 - 15
Mt. Baker Elevation
Wednesday - Wednesday Night VAR 0 - 10
Thursday - Thursday Night SW 0 - 10
Stevens and Snoqualmie Pass Elevation
Wednesday - Wednesday Night W 0 - 10
Thursday - Thursday Night SW 0 - 10
Mt. Rainier Elevation
Wednesday - Wednesday Night --- -
Thursday - Thursday Night --- -
Mt. Hood Elevation
Wednesday - Wednesday Night W 0 - 10
Thursday - Thursday Night W 0 - 10
Hurricane Ridge Direction - Speed
Wednesday - Wednesday Night W 0 - 10
Thursday - Thursday Night SW 5 - 15
Mt. Baker Direction - Speed
Wednesday - Wednesday Night VAR 0 - 10
Thursday - Thursday Night SW 0 - 10
Stevens and Snoqualmie Pass Direction - Speed
Wednesday - Wednesday Night W 0 - 10
Thursday - Thursday Night SW 0 - 10
Mt. Rainier Direction - Speed
Wednesday - Wednesday Night --- -
Thursday - Thursday Night --- -
Mt. Hood Direction - Speed
Wednesday - Wednesday Night W 0 - 10
Thursday - Thursday Night W 0 - 10

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
Wednesday - Wednesday Night NW 0 - 10 NNW 10 - 20 NW 15 - 25 --- - NW 5 - 15
Thursday W 10 - 20 W 5 - 15 NW 5 - 15 --- - N 0 - 10
Mt. Baker Direction - Speed
Wednesday - Wednesday Night NW 0 - 10
Thursday W 10 - 20
Thursday Night W 15 - 25
Washington Pass Direction - Speed
Wednesday - Wednesday Night NNW 10 - 20
Thursday W 5 - 15
Thursday Night W 10 - 20
Stevens and Snoqualmie Pass Direction - Speed
Wednesday - Wednesday Night NW 15 - 25
Thursday NW 5 - 15
Thursday Night W 15 - 25
Mt. Rainier Direction - Speed
Wednesday - Wednesday Night --- -
Thursday --- -
Thursday Night --- -
Mt. Hood Direction - Speed
Wednesday - Wednesday Night NW 5 - 15
Thursday N 0 - 10
Thursday Night W 10 - 20

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

Previous forecast from Jan 15, 2017

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.