Issued: 2:26 PM PST Tuesday, December 3, 2019
by Dallas Glass

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

Weather Synopsis for Tuesday night through Thursday

The short-term weather forecast looks damp and mild. Expect precipitation to move south and become more widespread Tuesday night and Wednesday. Most of the moisture should stay north of the Columbia River, leaving Mt Hood mostly dry. Snow levels ought to remain above most trailheads during the storm. As a result, you're likely to find rain and high elevation snow in most locations. Temperatures will slowly fall Wednesday through Thursday, but by this point, most of the precipitation seems to have moved out of the region.

Wednesday night and Thursday appear dry and cooler. You may find a few scattered rain and snow showers around the Washington Cascades, but most of these showers should be short-lived and only bring trace amounts of accumulation. A weak high pressure-ridge will allow for a bit of drying to occur over the area before our next chance at rain and snow late Friday into Saturday. 

Weather Forecast

Hurricane Ridge
Tuesday Night Rain and snow showers. Cloudy.
Mt. Baker
Tuesday Night Rain and snow showers. Cloudy. Moderate winds decreasing.
Washington Pass and Leavenworth
Tuesday Night Cloudy with rain and snow showers.
Stevens and Snoqualmie Pass
Tuesday Night Cloudy with rain and snow showers. Pass winds light out of the west.
Mt. Rainier, Crystal and White Pass
Tuesday Night Rain and snow showers. Cloudy. Moderate winds decreasing.
Mt. Hood
Tuesday Night Mostly cloudy.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Tuesday Evening Snow Level 6000' 5000' 4500' 5000' 5000' 5500' 6000' 6500'
Tuesday Night Snow Level 5500' 5000' 4500' 5000' 5000' 5500' 6000' 6500'
Wednesday Morning Snow Level 5000' 4500' 4500' 5000' 5000' 5500' 5500' 6000'
Wednesday Afternoon Snow Level 4500' 4000' 4000' 4500' 4500' 5000' 5000' 6000'
Wednesday Evening Snow Level 4000' 3500' 3500' 4000' 4000' 4500' 5000' 6000'
Wednesday Night Snow Level 4000' 3000' 3000' 3000' 3500' 4000' 4500' 5500'
Thursday Morning Snow Level 4500' 3000' 3000' 3000' 3500' 3500' 5000' 5500'
Hurricane Ridge Elevation
Tuesday Evening Snow Level
6000'
Tuesday Night Snow Level
5500'
Wednesday Morning Snow Level
5000'
Wednesday Afternoon Snow Level
4500'
Wednesday Evening Snow Level
4000'
Wednesday Night Snow Level
4000'
Thursday Morning Snow Level
4500'
Thursday Afternoon Snow Level
5000'
Mt. Baker Elevation
Tuesday Evening Snow Level
5000'
Tuesday Night Snow Level
5000'
Wednesday Morning Snow Level
4500'
Wednesday Afternoon Snow Level
4000'
Wednesday Evening Snow Level
3500'
Wednesday Night Snow Level
3000'
Thursday Morning Snow Level
3000'
Thursday Afternoon Snow Level
3500'
Washington Pass Elevation
Tuesday Evening Snow Level
4500'
Tuesday Night Snow Level
4500'
Wednesday Morning Snow Level
4500'
Wednesday Afternoon Snow Level
4000'
Wednesday Evening Snow Level
3500'
Wednesday Night Snow Level
3000'
Thursday Morning Snow Level
3000'
Thursday Afternoon Snow Level
3000'
Leavenworth Elevation
Tuesday Evening Snow Level
5000'
Tuesday Night Snow Level
5000'
Wednesday Morning Snow Level
5000'
Wednesday Afternoon Snow Level
4500'
Wednesday Evening Snow Level
4000'
Wednesday Night Snow Level
3000'
Thursday Morning Snow Level
3000'
Thursday Afternoon Snow Level
3000'
Stevens Pass Elevation
Tuesday Evening Snow Level
5000'
Tuesday Night Snow Level
5000'
Wednesday Morning Snow Level
5000'
Wednesday Afternoon Snow Level
4500'
Wednesday Evening Snow Level
4000'
Wednesday Night Snow Level
3500'
Thursday Morning Snow Level
3500'
Thursday Afternoon Snow Level
3500'
Snoqualmie Pass Elevation
Tuesday Evening Snow Level
5500'
Tuesday Night Snow Level
5500'
Wednesday Morning Snow Level
5500'
Wednesday Afternoon Snow Level
5000'
Wednesday Evening Snow Level
4500'
Wednesday Night Snow Level
4000'
Thursday Morning Snow Level
3500'
Thursday Afternoon Snow Level
4000'
Mt. Rainier & Crystal Elevation
Tuesday Evening Snow Level
6000'
Tuesday Night Snow Level
6000'
Wednesday Morning Snow Level
5500'
Wednesday Afternoon Snow Level
5000'
Wednesday Evening Snow Level
5000'
Wednesday Night Snow Level
4500'
Thursday Morning Snow Level
5000'
Thursday Afternoon Snow Level
5500'
Mt. Hood Elevation
Tuesday Evening Snow Level
6500'
Tuesday Night Snow Level
6500'
Wednesday Morning Snow Level
6000'
Wednesday Afternoon Snow Level
6000'
Wednesday Evening Snow Level
6000'
Wednesday Night Snow Level
5500'
Thursday Morning Snow Level
5500'
Thursday Afternoon Snow Level
6000'

* 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 Night Thursday Thursday Night Thursday
4 pm - 4 am 4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge LT 0.25 LT 0.25 0 LT 0.10
Mt Baker Ski Area 0.25 - 0.50 0.25 - 0.50 LT 0.10 LT 0.10
Washington Pass 0.25 LT 0.10 0 LT 0.10
Leavenworth LT 0.10 LT 0.10 0 0
Stevens Pass 0.25 0.25 - 0.50 LT 0.10 LT 0.10
Snoqualmie Pass LT 0.25 0.25 - 0.50 LT 0.10 LT 0.10
Mission Ridge LT 0.10 LT 0.10 0 0
Crystal Mt LT 0.10 LT 0.25 0 0
Paradise 0.25 0.25 - 0.50 LT 0.10 0
White Pass LT 0.10 LT 0.10 0 0
Mt Hood Meadows 0 0 0 0
0 0 0 0
Hurricane Ridge Precipitation Forecast
Tuesday Night LT 0.25
Thursday LT 0.25
Thursday Night 0
Thursday LT 0.10
Mt Baker Ski Area Precipitation Forecast
Tuesday Night 0.25 - 0.50
Thursday 0.25 - 0.50
Thursday Night LT 0.10
Thursday LT 0.10
Washington Pass Precipitation Forecast
Tuesday Night 0.25
Thursday LT 0.10
Thursday Night 0
Thursday LT 0.10
Leavenworth Precipitation Forecast
Tuesday Night LT 0.10
Thursday LT 0.10
Thursday Night 0
Thursday 0
Stevens Pass Precipitation Forecast
Tuesday Night 0.25
Thursday 0.25 - 0.50
Thursday Night LT 0.10
Thursday LT 0.10
Snoqualmie Pass Precipitation Forecast
Tuesday Night LT 0.25
Thursday 0.25 - 0.50
Thursday Night LT 0.10
Thursday LT 0.10
Mission Ridge Precipitation Forecast
Tuesday Night LT 0.10
Thursday LT 0.10
Thursday Night 0
Thursday 0
Crystal Mt Precipitation Forecast
Tuesday Night LT 0.10
Thursday LT 0.25
Thursday Night 0
Thursday 0
Paradise Precipitation Forecast
Tuesday Night 0.25
Thursday 0.25 - 0.50
Thursday Night LT 0.10
Thursday 0
White Pass Precipitation Forecast
Tuesday Night LT 0.10
Thursday LT 0.10
Thursday Night 0
Thursday 0
Mt Hood Meadows Precipitation Forecast
Tuesday Night 0
Thursday 0
Thursday Night 0
Thursday 0
Timberline Precipitation Forecast
Tuesday Night 0
Thursday 0
Thursday Night 0
Thursday 0

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Tuesday Evening SW 5 - 15 SSW 10 - 20 WSW 5 - 15 WSW 10 - 20 W 5 - 15
Tuesday Night SW 5 - 15 SSW 5 - 15 W 5 - 15 WSW 5 - 15 W 5 - 15
Wednesday Morning WSW 5 - 15 SW 5 - 15 W 5 - 15 W 5 - 15 W 5 - 15
Hurricane Ridge Elevation
Tuesday Evening SW 5 - 15
Tuesday Night SW 5 - 15
Wednesday Morning WSW 5 - 15
Wednesday Afternoon SW 0 - 10
Mt. Baker Elevation
Tuesday Evening SSW 10 - 20
Tuesday Night SSW 5 - 15
Wednesday Morning SW 5 - 15
Wednesday Afternoon W 0 - 10
Stevens and Snoqualmie Pass Elevation
Tuesday Evening WSW 5 - 15
Tuesday Night W 5 - 15
Wednesday Morning W 5 - 15
Wednesday Afternoon W 5 - 15
Mt. Rainier Elevation
Tuesday Evening WSW 10 - 20
Tuesday Night WSW 5 - 15
Wednesday Morning W 5 - 15
Wednesday Afternoon W 5 - 15
Mt. Hood Elevation
Tuesday Evening W 5 - 15
Tuesday Night W 5 - 15
Wednesday Morning W 5 - 15
Wednesday Afternoon W 0 - 10
Hurricane Ridge Direction - Speed
Tuesday Evening SW 5 - 15
Tuesday Night SW 5 - 15
Wednesday Morning WSW 5 - 15
Wednesday Afternoon SW 0 - 10
Mt. Baker Direction - Speed
Tuesday Evening SSW 10 - 20
Tuesday Night SSW 5 - 15
Wednesday Morning SW 5 - 15
Wednesday Afternoon W 0 - 10
Stevens and Snoqualmie Pass Direction - Speed
Tuesday Evening WSW 5 - 15
Tuesday Night W 5 - 15
Wednesday Morning W 5 - 15
Wednesday Afternoon W 5 - 15
Mt. Rainier Direction - Speed
Tuesday Evening WSW 10 - 20
Tuesday Night WSW 5 - 15
Wednesday Morning W 5 - 15
Wednesday Afternoon W 5 - 15
Mt. Hood Direction - Speed
Tuesday Evening W 5 - 15
Tuesday Night W 5 - 15
Wednesday Morning W 5 - 15
Wednesday Afternoon 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
Tuesday Evening W 25 - 35 W 25 - 35 W 25 - 35 W 20 - 30 W 20 - 30
Tuesday Night WSW 25 - 35 WSW 25 - 35 W 25 - 35 W 20 - 30 W 20 - 30
Wednesday Morning W 20 - 30 W 20 - 30 W 20 - 30 W 15 - 25 W 15 - 25
Mt. Baker Direction - Speed
Tuesday Evening W 25 - 35
Tuesday Night WSW 25 - 35
Wednesday Morning W 20 - 30
Wednesday Afternoon W 15 - 25
Washington Pass Direction - Speed
Tuesday Evening W 25 - 35
Tuesday Night WSW 25 - 35
Wednesday Morning W 20 - 30
Wednesday Afternoon W 15 - 25
Stevens and Snoqualmie Pass Direction - Speed
Tuesday Evening W 25 - 35
Tuesday Night W 25 - 35
Wednesday Morning W 20 - 30
Wednesday Afternoon W 15 - 25
Mt. Rainier Direction - Speed
Tuesday Evening W 20 - 30
Tuesday Night W 20 - 30
Wednesday Morning W 15 - 25
Wednesday Afternoon WSW 10 - 20
Mt. Hood Direction - Speed
Tuesday Evening W 20 - 30
Tuesday Night W 20 - 30
Wednesday Morning W 15 - 25
Wednesday Afternoon W 10 - 20

Extended Weather Synopsis for Thursday night through Thursday

A more developed storm system should begin to approach the West Coast Friday and Friday night. The bulk of the system seems to impact southern Oregon and California. However, moisture associated with this low-pressure is expected to move up from the south and west into the region. The weather models continue to struggle with how much precipitation will reach our area. We'll have to wait and see how this one plays out as the weekend draws near. 

Extended Snow/Freezing Levels

Mt. Baker Snoqualmie Pass Mt. Hood Easterly Flow *
Thursday Night Freezing Level 5500' - 7000' 5500' - 7000' 6500' - 8000'
Friday Freezing Level 5000' - 6500' 5000' - 6500' 6000' - 7000'
Friday Night Snow Level 4000' - 5000' 4000' - 5000' 5000' - 6000'
Mt. Baker Elevation
Thursday Night Freezing Level
5500' - 7000'
Friday Freezing Level
5000' - 6500'
Friday Night Snow Level
4000' - 5000'
Saturday Snow Level
3500' - 4500'
Snoqualmie Pass Elevation
Thursday Night Freezing Level
5500' - 7000'
Friday Freezing Level
5000' - 6500'
Friday Night Snow Level
4000' - 5000'
Saturday Snow Level
3500' - 4500'
Mt. Hood Elevation
Thursday Night Freezing Level
6500' - 8000'
Friday Freezing Level
6000' - 7000'
Friday Night Snow Level
5000' - 6000'
Saturday Snow Level
4500' - 5500'

* 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.

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

Previous forecast from Dec 2, 2019

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