Issued: 6:50 AM PST Tuesday, February 5, 2019
by Robert Hahn

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

Weather Synopsis for Tuesday & Tuesday

On Tuesday, a departing low pressure and associated trough will bring some very light snow and decreasing clouds to Mt. Hood and areas east of the Cascade Crest south of I-90 before 10 AM. The day will become mostly sunny throughout the Pacific Northwest with calm to light winds for most mountain locations in the dry and light northerly flow aloft behind the trough. With little mixing of the atmosphere, some patchy low-level fog will linger through the morning hours. Temperatures will be cooler than seasonal norms due to a modified arctic air mass in place with decreasing strong Frasier River outflow continuing to spill cold air into the Puget Sound lowlands.

Tuesday night will be clear and cold with another sunny, cool, and quiescent day on Wednesday. Decreasing Frasier River outflow and temperatures moderating slightly. A system dropping southward over the eastern Pacific will track well west of our region.

 

Weather Forecast

Hurricane Ridge
Mt. Baker
Washington Pass and Leavenworth
Stevens and Snoqualmie Pass
Mt. Rainier, Crystal and White Pass
Mt. Hood

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Tuesday Morning Snow Level 0' 0' 0' 0' 0' 0' 0' 500'
Tuesday Afternoon Freezing Level 500' 500' 500' 500' 500' 500' 500' 1000'
Tuesday Evening Freezing Level 500' 500' 500' 1000' 1000' 500' 1000' 1000'
Tuesday Night Freezing Level 0' 0' 0' 0' 0' 0' 0' 500'
Wednesday Morning Freezing Level 500' 500' 500' 500' 500' 500' 500' 500'
Hurricane Ridge Elevation
Tuesday Morning Snow Level
0'
Tuesday Afternoon Freezing Level
500'
Tuesday Evening Freezing Level
500'
Tuesday Night Freezing Level
0'
Wednesday Morning Freezing Level
500'
Wednesday Afternoon Freezing Level
100'
Mt. Baker Elevation
Tuesday Morning Snow Level
0'
Tuesday Afternoon Freezing Level
500'
Tuesday Evening Freezing Level
500'
Tuesday Night Freezing Level
0'
Wednesday Morning Freezing Level
500'
Wednesday Afternoon Freezing Level
1000'
Washington Pass Elevation
Tuesday Morning Snow Level
0'
Tuesday Afternoon Freezing Level
500'
Tuesday Evening Freezing Level
500'
Tuesday Night Freezing Level
0'
Wednesday Morning Freezing Level
500'
Wednesday Afternoon Freezing Level
1000'
Leavenworth Elevation
Tuesday Morning Snow Level
0'
Tuesday Afternoon Freezing Level
500'
Tuesday Evening Freezing Level
1000'
Tuesday Night Freezing Level
0'
Wednesday Morning Freezing Level
500'
Wednesday Afternoon Freezing Level
1000'
Stevens Pass Elevation
Tuesday Morning Snow Level
0'
Tuesday Afternoon Freezing Level
500'
Tuesday Evening Freezing Level
1000'
Tuesday Night Freezing Level
0'
Wednesday Morning Freezing Level
500'
Wednesday Afternoon Freezing Level
1000'
Snoqualmie Pass Elevation
Tuesday Morning Snow Level
0'
Tuesday Afternoon Freezing Level
500'
Tuesday Evening Freezing Level
500'
Tuesday Night Freezing Level
0'
Wednesday Morning Freezing Level
500'
Wednesday Afternoon Freezing Level
1000'
Mt. Rainier & Crystal Elevation
Tuesday Morning Snow Level
0'
Tuesday Afternoon Freezing Level
500'
Tuesday Evening Freezing Level
1000'
Tuesday Night Freezing Level
0'
Wednesday Morning Freezing Level
500'
Wednesday Afternoon Freezing Level
1500'
Mt. Hood Elevation
Tuesday Morning Snow Level
500'
Tuesday Afternoon Freezing Level
1000'
Tuesday Evening Freezing Level
1000'
Tuesday Night Freezing Level
500'
Wednesday Morning Freezing Level
500'
Wednesday Afternoon Freezing 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

Tuesday Tuesday Night Tuesday
4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge 0 0 0
Mt Baker Ski Area 0 0 0
Washington Pass 0 0 0
Leavenworth 0 0 0
Stevens Pass 0 0 0
Snoqualmie Pass 0 0 0
Mission Ridge 0 0 0
Crystal Mt 0 0 0
Paradise 0 0 0
White Pass 0 0 0
Mt Hood Meadows LT 0.10 0 0
LT 0.10 0 0
Hurricane Ridge Precipitation Forecast
Tuesday 0
Tuesday Night 0
Tuesday 0
Mt Baker Ski Area Precipitation Forecast
Tuesday 0
Tuesday Night 0
Tuesday 0
Washington Pass Precipitation Forecast
Tuesday 0
Tuesday Night 0
Tuesday 0
Leavenworth Precipitation Forecast
Tuesday 0
Tuesday Night 0
Tuesday 0
Stevens Pass Precipitation Forecast
Tuesday 0
Tuesday Night 0
Tuesday 0
Snoqualmie Pass Precipitation Forecast
Tuesday 0
Tuesday Night 0
Tuesday 0
Mission Ridge Precipitation Forecast
Tuesday 0
Tuesday Night 0
Tuesday 0
Crystal Mt Precipitation Forecast
Tuesday 0
Tuesday Night 0
Tuesday 0
Paradise Precipitation Forecast
Tuesday 0
Tuesday Night 0
Tuesday 0
White Pass Precipitation Forecast
Tuesday 0
Tuesday Night 0
Tuesday 0
Mt Hood Meadows Precipitation Forecast
Tuesday LT 0.10
Tuesday Night 0
Tuesday 0
Timberline Precipitation Forecast
Tuesday LT 0.10
Tuesday Night 0
Tuesday 0

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Tuesday Morning N 0 - 10 ENE 0 - 10 VAR 0 - 10 VAR 0 - 10 W 5 - 15
Tuesday Afternoon VAR 0 - 10 NE 0 - 10 W 5 - 15 W 5 - 15 W 5 - 15
Tuesday Evening N 5 - 15 NE 5 - 15 W 5 - 15 W 5 - 15 W 5 - 15
Tuesday Night NNW 5 - 15 NNE 5 - 15 W 5 - 15 W 5 - 15 W 10 - 20
Wednesday Morning N 0 - 10 NE 0 - 10 W 0 - 10 W 0 - 10 W 5 - 15
Hurricane Ridge Elevation
Tuesday Morning N 0 - 10
Tuesday Afternoon VAR 0 - 10
Tuesday Evening N 5 - 15
Tuesday Night NNW 5 - 15
Wednesday Morning N 0 - 10
Wednesday Afternoon W 0 - 10
Mt. Baker Elevation
Tuesday Morning ENE 0 - 10
Tuesday Afternoon NE 0 - 10
Tuesday Evening NE 5 - 15
Tuesday Night NNE 5 - 15
Wednesday Morning NE 0 - 10
Wednesday Afternoon VAR 0 - 10
Stevens and Snoqualmie Pass Elevation
Tuesday Morning VAR 0 - 10
Tuesday Afternoon W 5 - 15
Tuesday Evening W 5 - 15
Tuesday Night W 5 - 15
Wednesday Morning W 0 - 10
Wednesday Afternoon W 5 - 15
Mt. Rainier Elevation
Tuesday Morning VAR 0 - 10
Tuesday Afternoon W 5 - 15
Tuesday Evening W 5 - 15
Tuesday Night W 5 - 15
Wednesday Morning W 0 - 10
Wednesday Afternoon WNW 5 - 15
Mt. Hood Elevation
Tuesday Morning W 5 - 15
Tuesday Afternoon W 5 - 15
Tuesday Evening W 5 - 15
Tuesday Night W 10 - 20
Wednesday Morning W 5 - 15
Wednesday Afternoon W 5 - 15
Hurricane Ridge Direction - Speed
Tuesday Morning N 0 - 10
Tuesday Afternoon VAR 0 - 10
Tuesday Evening N 5 - 15
Tuesday Night NNW 5 - 15
Wednesday Morning N 0 - 10
Wednesday Afternoon W 0 - 10
Mt. Baker Direction - Speed
Tuesday Morning ENE 0 - 10
Tuesday Afternoon NE 0 - 10
Tuesday Evening NE 5 - 15
Tuesday Night NNE 5 - 15
Wednesday Morning NE 0 - 10
Wednesday Afternoon VAR 0 - 10
Stevens and Snoqualmie Pass Direction - Speed
Tuesday Morning VAR 0 - 10
Tuesday Afternoon W 5 - 15
Tuesday Evening W 5 - 15
Tuesday Night W 5 - 15
Wednesday Morning W 0 - 10
Wednesday Afternoon W 5 - 15
Mt. Rainier Direction - Speed
Tuesday Morning VAR 0 - 10
Tuesday Afternoon W 5 - 15
Tuesday Evening W 5 - 15
Tuesday Night W 5 - 15
Wednesday Morning W 0 - 10
Wednesday Afternoon WNW 5 - 15
Mt. Hood Direction - Speed
Tuesday Morning W 5 - 15
Tuesday Afternoon W 5 - 15
Tuesday Evening W 5 - 15
Tuesday Night W 10 - 20
Wednesday Morning W 5 - 15
Wednesday Afternoon W 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 NNE 5 - 15 NW 5 - 15 NNW 5 - 15 NNW 10 - 20 NNW 10 - 20
Tuesday Afternoon NNW 10 - 20 NNW 15 - 25 NW 10 - 20 NW 15 - 25 NW 10 - 20
Tuesday Evening NNW 20 - 30 NNW 25 - 35 NNW 20 - 30 NNW 20 - 30 NNW 20 - 30
Tuesday Night NNW 25 - 35 NNW 35 - 50 NNW 20 - 30 NNW 25 - 35 NNW 25 - 35
Wednesday Morning NNW 15 - 25 NNW 30 - 45 NNW 25 - 35 NNW 30 - 45 NNW 30 - 45
Mt. Baker Direction - Speed
Tuesday Morning NNE 5 - 15
Tuesday Afternoon NNW 10 - 20
Tuesday Evening NNW 20 - 30
Tuesday Night NNW 25 - 35
Wednesday Morning NNW 15 - 25
Wednesday Afternoon NW 10 - 20
Washington Pass Direction - Speed
Tuesday Morning NW 5 - 15
Tuesday Afternoon NNW 15 - 25
Tuesday Evening NNW 25 - 35
Tuesday Night NNW 35 - 50
Wednesday Morning NNW 30 - 45
Wednesday Afternoon NW 20 - 30
Stevens and Snoqualmie Pass Direction - Speed
Tuesday Morning NNW 5 - 15
Tuesday Afternoon NW 10 - 20
Tuesday Evening NNW 20 - 30
Tuesday Night NNW 20 - 30
Wednesday Morning NNW 25 - 35
Wednesday Afternoon NNW 20 - 30
Mt. Rainier Direction - Speed
Tuesday Morning NNW 10 - 20
Tuesday Afternoon NW 15 - 25
Tuesday Evening NNW 20 - 30
Tuesday Night NNW 25 - 35
Wednesday Morning NNW 30 - 45
Wednesday Afternoon NNW 20 - 30
Mt. Hood Direction - Speed
Tuesday Morning NNW 10 - 20
Tuesday Afternoon NW 10 - 20
Tuesday Evening NNW 20 - 30
Tuesday Night NNW 25 - 35
Wednesday Morning NNW 30 - 45
Wednesday Afternoon NNW 20 - 30

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 Feb 1, 2019

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.