Issued: 6:45 AM PST Tuesday, February 4, 2020
by Dallas Glass

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

Weather Synopsis for Tuesday & Tuesday

Tuesday appears pretty quiet in the mountains. Light snow showers and increasing winds should spread from the north and west to the south and east ahead of an approaching warm front. Little if any precipitation appears to make it east of the Cascade crest during the day. Temperatures will nudge up a few degrees but, cold air already in place should keep all precipitation as snow. 

All of this will change overnight. The brunt of a mild, wet, and windy warm front will slam into the mountains Tuesday evening. Expect heavy rain and snow in the Cascades, with showers spilling over to areas further east. Weather models continue to struggle with exact precipitation amounts for the mountains, but, no matter how you look at it, the pattern appears very wet. Snowlevels will begin a steady march upward, eventually peaking during the day Wednesday. How warm will it get? That's a tricky one. Models show a change to rain above Pass levels in all areas by mid-morning Wednesday, with warmer temperatures in the Olympics, South Cascades, and Mt Hood areas. Along with the steady precipitation and warming temperatures, look for winds to increase bringing moderate to strong winds to most locations. Stormy weather will hang around the Cascades through most of the week. 

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 500' 0' 0' 0' 500' 500' 500' 500'
Tuesday Afternoon Snow Level 2500' 1000' 1000' 1000' 1500' 2000' 2000' 2000'
Tuesday Evening Snow Level 4500' 1500' 1500' 1500' 2000' 2500' 2500' 2500'
Tuesday Night Snow Level 6000' 3000' 2500' 2500' 3000' 3500' 4000' 4500'
Wednesday Morning Snow Level 6500' 5000' 3500' 3500' 4000' 5000' 6000' 6500'
Hurricane Ridge Elevation
Tuesday Morning Snow Level
500'
Tuesday Afternoon Snow Level
2500'
Tuesday Evening Snow Level
4500'
Tuesday Night Snow Level
6000'
Wednesday Morning Snow Level
6500'
Wednesday Afternoon Snow Level
7000'
Mt. Baker Elevation
Tuesday Morning Snow Level
0'
Tuesday Afternoon Snow Level
1000'
Tuesday Evening Snow Level
1500'
Tuesday Night Snow Level
3000'
Wednesday Morning Snow Level
5000'
Wednesday Afternoon Snow Level
5500'
Washington Pass Elevation
Tuesday Morning Snow Level
0'
Tuesday Afternoon Snow Level
1000'
Tuesday Evening Snow Level
1500'
Tuesday Night Snow Level
2500'
Wednesday Morning Snow Level
3500'
Wednesday Afternoon Snow Level
5000'
Leavenworth Elevation
Tuesday Morning Snow Level
0'
Tuesday Afternoon Snow Level
1000'
Tuesday Evening Snow Level
1500'
Tuesday Night Snow Level
2500'
Wednesday Morning Snow Level
3500'
Wednesday Afternoon Snow Level
5000'
Stevens Pass Elevation
Tuesday Morning Snow Level
500'
Tuesday Afternoon Snow Level
1500'
Tuesday Evening Snow Level
2000'
Tuesday Night Snow Level
3000'
Wednesday Morning Snow Level
4000'
Wednesday Afternoon Snow Level
5000'
Snoqualmie Pass Elevation
Tuesday Morning Snow Level
500'
Tuesday Afternoon Snow Level
2000'
Tuesday Evening Snow Level
2500'
Tuesday Night Snow Level
3500'
Wednesday Morning Snow Level
5000'
Wednesday Afternoon Snow Level
6000'
Mt. Rainier & Crystal Elevation
Tuesday Morning Snow Level
500'
Tuesday Afternoon Snow Level
2000'
Tuesday Evening Snow Level
2500'
Tuesday Night Snow Level
4000'
Wednesday Morning Snow Level
6000'
Wednesday Afternoon Snow Level
6500'
Mt. Hood Elevation
Tuesday Morning Snow Level
500'
Tuesday Afternoon Snow Level
2000'
Tuesday Evening Snow Level
2500'
Tuesday Night Snow Level
4500'
Wednesday Morning Snow Level
6500'
Wednesday Afternoon Snow Level
7000'

* 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 LT 0.25 0.25 - 0.50 0.25
Mt Baker Ski Area 0.25 0.50 - 0.75 0.75
Washington Pass LT 0.10 0.25 0.25 - 0.50
Leavenworth 0 LT 0.10 0.25 - 0.50
Stevens Pass LT 0.25 1.00 1.00
Snoqualmie Pass LT 0.25 1.00 - 1.50 1.50
Mission Ridge 0 LT 0.25 LT 0.25
Crystal Mt LT 0.10 0.50 - 0.75 0.75 -1.00
Paradise LT 0.25 1.50 1.50 - 2.00
White Pass LT 0.10 0.75 1.00
Mt Hood Meadows LT 0.10 0.50 - 0.75 1.00 - 1.50
LT 0.10 0.50 - 0.75 1.00 - 1.50
Hurricane Ridge Precipitation Forecast
Tuesday LT 0.25
Tuesday Night 0.25 - 0.50
Tuesday 0.25
Mt Baker Ski Area Precipitation Forecast
Tuesday 0.25
Tuesday Night 0.50 - 0.75
Tuesday 0.75
Washington Pass Precipitation Forecast
Tuesday LT 0.10
Tuesday Night 0.25
Tuesday 0.25 - 0.50
Leavenworth Precipitation Forecast
Tuesday 0
Tuesday Night LT 0.10
Tuesday 0.25 - 0.50
Stevens Pass Precipitation Forecast
Tuesday LT 0.25
Tuesday Night 1.00
Tuesday 1.00
Snoqualmie Pass Precipitation Forecast
Tuesday LT 0.25
Tuesday Night 1.00 - 1.50
Tuesday 1.50
Mission Ridge Precipitation Forecast
Tuesday 0
Tuesday Night LT 0.25
Tuesday LT 0.25
Crystal Mt Precipitation Forecast
Tuesday LT 0.10
Tuesday Night 0.50 - 0.75
Tuesday 0.75 -1.00
Paradise Precipitation Forecast
Tuesday LT 0.25
Tuesday Night 1.50
Tuesday 1.50 - 2.00
White Pass Precipitation Forecast
Tuesday LT 0.10
Tuesday Night 0.75
Tuesday 1.00
Mt Hood Meadows Precipitation Forecast
Tuesday LT 0.10
Tuesday Night 0.50 - 0.75
Tuesday 1.00 - 1.50
Timberline Precipitation Forecast
Tuesday LT 0.10
Tuesday Night 0.50 - 0.75
Tuesday 1.00 - 1.50

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Tuesday Morning W 5 - 15 SW 5 - 15 W 10 - 20 W 5 - 15 WNW 5 - 15
Tuesday Afternoon SW 10 - 20 SSW 10 - 20 W 15 - 25 W 10 - 20 W 15 - 25
Tuesday Evening SW 10 - 20 SSW 15 - 25 W 15 - 25 W 10 - 20 W 20 - 30
Tuesday Night W 15 - 25 SW 10 - 20 W 20 - 30 W 15 - 25 W 20 - 30
Wednesday Morning W 15 - 25 SW 10 - 20 W 20 - 30 WNW 15 - 25 W 30 - 40
Hurricane Ridge Elevation
Tuesday Morning W 5 - 15
Tuesday Afternoon SW 10 - 20
Tuesday Evening SW 10 - 20
Tuesday Night W 15 - 25
Wednesday Morning W 15 - 25
Wednesday Afternoon WNW 20 - 30
Mt. Baker Elevation
Tuesday Morning SW 5 - 15
Tuesday Afternoon SSW 10 - 20
Tuesday Evening SSW 15 - 25
Tuesday Night SW 10 - 20
Wednesday Morning SW 10 - 20
Wednesday Afternoon W 15 - 25
Stevens and Snoqualmie Pass Elevation
Tuesday Morning W 10 - 20
Tuesday Afternoon W 15 - 25
Tuesday Evening W 15 - 25
Tuesday Night W 20 - 30
Wednesday Morning W 20 - 30
Wednesday Afternoon W 30 - 40
Mt. Rainier Elevation
Tuesday Morning W 5 - 15
Tuesday Afternoon W 10 - 20
Tuesday Evening W 10 - 20
Tuesday Night W 15 - 25
Wednesday Morning WNW 15 - 25
Wednesday Afternoon W 20 - 30
Mt. Hood Elevation
Tuesday Morning WNW 5 - 15
Tuesday Afternoon W 15 - 25
Tuesday Evening W 20 - 30
Tuesday Night W 20 - 30
Wednesday Morning W 30 - 40
Wednesday Afternoon W 35 - 45
Hurricane Ridge Direction - Speed
Tuesday Morning W 5 - 15
Tuesday Afternoon SW 10 - 20
Tuesday Evening SW 10 - 20
Tuesday Night W 15 - 25
Wednesday Morning W 15 - 25
Wednesday Afternoon WNW 20 - 30
Mt. Baker Direction - Speed
Tuesday Morning SW 5 - 15
Tuesday Afternoon SSW 10 - 20
Tuesday Evening SSW 15 - 25
Tuesday Night SW 10 - 20
Wednesday Morning SW 10 - 20
Wednesday Afternoon W 15 - 25
Stevens and Snoqualmie Pass Direction - Speed
Tuesday Morning W 10 - 20
Tuesday Afternoon W 15 - 25
Tuesday Evening W 15 - 25
Tuesday Night W 20 - 30
Wednesday Morning W 20 - 30
Wednesday Afternoon W 30 - 40
Mt. Rainier Direction - Speed
Tuesday Morning W 5 - 15
Tuesday Afternoon W 10 - 20
Tuesday Evening W 10 - 20
Tuesday Night W 15 - 25
Wednesday Morning WNW 15 - 25
Wednesday Afternoon W 20 - 30
Mt. Hood Direction - Speed
Tuesday Morning WNW 5 - 15
Tuesday Afternoon W 15 - 25
Tuesday Evening W 20 - 30
Tuesday Night W 20 - 30
Wednesday Morning W 30 - 40
Wednesday Afternoon W 35 - 45

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 NW 30 - 40 WNW 20 - 30 NW 30 - 40 NW 30 - 40 NW 25 - 35
Tuesday Afternoon W 35 - 45 W 30 - 40 NW 35 - 45 NW 35 - 45 NW 30 - 40
Tuesday Evening W 30 - 40 W 30 - 40 W 40 - 55 NW 40 - 55 NW 40 - 55
Tuesday Night W 35 - 45 W 45 - 60 W 45 - 60 NW 45 - 60 NW 50 - 65
Wednesday Morning W 35 - 45 W 50 - 65 NW 50 - 65 NW 50 - 65 NW 55 - 70
Mt. Baker Direction - Speed
Tuesday Morning NW 30 - 40
Tuesday Afternoon W 35 - 45
Tuesday Evening W 30 - 40
Tuesday Night W 35 - 45
Wednesday Morning W 35 - 45
Wednesday Afternoon W 35 - 45
Washington Pass Direction - Speed
Tuesday Morning WNW 20 - 30
Tuesday Afternoon W 30 - 40
Tuesday Evening W 30 - 40
Tuesday Night W 45 - 60
Wednesday Morning W 50 - 65
Wednesday Afternoon W 45 - 60
Stevens and Snoqualmie Pass Direction - Speed
Tuesday Morning NW 30 - 40
Tuesday Afternoon NW 35 - 45
Tuesday Evening W 40 - 55
Tuesday Night W 45 - 60
Wednesday Morning NW 50 - 65
Wednesday Afternoon NW 50 - 65
Mt. Rainier Direction - Speed
Tuesday Morning NW 30 - 40
Tuesday Afternoon NW 35 - 45
Tuesday Evening NW 40 - 55
Tuesday Night NW 45 - 60
Wednesday Morning NW 50 - 65
Wednesday Afternoon NW 50 - 65
Mt. Hood Direction - Speed
Tuesday Morning NW 25 - 35
Tuesday Afternoon NW 30 - 40
Tuesday Evening NW 40 - 55
Tuesday Night NW 50 - 65
Wednesday Morning NW 55 - 70
Wednesday Afternoon NW 55 - 70

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 3, 2020

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.