Issued: 6:44 AM PDT Friday, March 13, 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 Friday & Monday

Even though the approaching storm system is a bit behind schedule this morning, you should still see snow move into the mountains throughout the day. Precipitation will spread north to south, reaching the Mt Hood area in the afternoon. The current path of the low-pressure takes it further west than originally thought. This will likely result in less snow for most of our area. As the storm drifts south along the coast, the bulk of the precipitation focusses on locations in the southern half of the forecast region Friday afternoon and evening. Moisture should swing around the rotating storm and approach the Cascades from the southeast producing decent snowfall for the Wenatchee Mountains, higher terrain near Yakima, Mt Adams, and Mt Hood areas. Cold air spills into the region from Canada Friday evening dropping snowlevels close to zero for most locations. As a result, you could see modest water amounts produce several inches of light fluffy snow. 

The storm bumps around on the Oregon coast overnight continuing to spin moisture into the southern and eastern portions of the region. Eventually, it gets moving again in the wee hours of Saturday morning leaving a few lingering showers and very cold air in its place. As it exits, areas further north begin to dry and clear, while isolated showers continue to add another inch or two of snow to locations like Mission Ridge, White Pass, and Mt Hood.  

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
Friday Morning Snow Level * 1500' 500' 1000' 1000' 1000' 1500' 2000' 2000'
Friday Afternoon Snow Level * 1000' 1000' 1500' 2000' 2000' 2500' 2500' 3000'
Friday Evening Snow Level * 500' 500' 500' 1000' 1000' 1500' 2000' 2500'
Friday Night Snow Level * 0' 0' 0' 0' 0' 500' 500' 1000'
Saturday Morning Snow Level * 0' 0' 0' 0' 0' 0' 0' 0'
Hurricane Ridge Elevation
Friday Morning Snow Level
1500'
(Easterly Flow *)
Friday Afternoon Snow Level
1000'
(Easterly Flow *)
Friday Evening Snow Level
500'
(Easterly Flow *)
Friday Night Snow Level
0'
(Easterly Flow *)
Saturday Morning Snow Level
0'
(Easterly Flow *)
Saturday Afternoon Snow Level
0'
(Easterly Flow *)
Mt. Baker Elevation
Friday Morning Snow Level
500'
(Easterly Flow *)
Friday Afternoon Snow Level
1000'
(Easterly Flow *)
Friday Evening Snow Level
500'
(Easterly Flow *)
Friday Night Snow Level
0'
(Easterly Flow *)
Saturday Morning Snow Level
0'
(Easterly Flow *)
Saturday Afternoon Snow Level
0'
(Easterly Flow *)
Washington Pass Elevation
Friday Morning Snow Level
1000'
(Easterly Flow *)
Friday Afternoon Snow Level
1500'
(Easterly Flow *)
Friday Evening Snow Level
500'
(Easterly Flow *)
Friday Night Snow Level
0'
(Easterly Flow *)
Saturday Morning Snow Level
0'
(Easterly Flow *)
Saturday Afternoon Snow Level
0'
(Easterly Flow *)
Leavenworth Elevation
Friday Morning Snow Level
1000'
(Easterly Flow *)
Friday Afternoon Snow Level
2000'
(Easterly Flow *)
Friday Evening Snow Level
1000'
(Easterly Flow *)
Friday Night Snow Level
0'
(Easterly Flow *)
Saturday Morning Snow Level
0'
(Easterly Flow *)
Saturday Afternoon Snow Level
0'
(Easterly Flow *)
Stevens Pass Elevation
Friday Morning Snow Level
1000'
(Easterly Flow *)
Friday Afternoon Snow Level
2000'
(Easterly Flow *)
Friday Evening Snow Level
1000'
(Easterly Flow *)
Friday Night Snow Level
0'
(Easterly Flow *)
Saturday Morning Snow Level
0'
(Easterly Flow *)
Saturday Afternoon Snow Level
0'
(Easterly Flow *)
Snoqualmie Pass Elevation
Friday Morning Snow Level
1500'
(Easterly Flow *)
Friday Afternoon Snow Level
2500'
(Easterly Flow *)
Friday Evening Snow Level
1500'
(Easterly Flow *)
Friday Night Snow Level
500'
(Easterly Flow *)
Saturday Morning Snow Level
0'
(Easterly Flow *)
Saturday Afternoon Snow Level
0'
(Easterly Flow *)
Mt. Rainier & Crystal Elevation
Friday Morning Snow Level
2000'
(Easterly Flow *)
Friday Afternoon Snow Level
2500'
(Easterly Flow *)
Friday Evening Snow Level
2000'
(Easterly Flow *)
Friday Night Snow Level
500'
(Easterly Flow *)
Saturday Morning Snow Level
0'
(Easterly Flow *)
Saturday Afternoon Snow Level
500'
(Easterly Flow *)
Mt. Hood Elevation
Friday Morning Snow Level
2000'
(Easterly Flow *)
Friday Afternoon Snow Level
3000'
(Easterly Flow *)
Friday Evening Snow Level
2500'
(Easterly Flow *)
Friday Night Snow Level
1000'
(Easterly Flow *)
Saturday Morning Snow Level
0'
(Easterly Flow *)
Saturday Afternoon Snow Level
0'
(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

Friday Friday Night Monday
4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge 0.25 - 0.50 0.25 - 0.50 LT 0.10
Mt Baker Ski Area LT 0.25 LT 0.10 0
Washington Pass LT 0.25 LT 0.25 LT 0.10
Leavenworth 0.25 0.25 LT 0.10
Stevens Pass LT 0.25 LT 0.25 0
Snoqualmie Pass 0.25 LT 0.10 LT 0.10
Mission Ridge 0.25 - 0.50 0.50 - 0.75 LT 0.25
Crystal Mt 0.25 - 0.50 0.25 LT 0.10
Paradise 0.25 - 0.50 0.25 LT 0.10
White Pass 0.25 - 0.50 0.25 - 0.50 LT 0.25
Mt Hood Meadows LT 0.25 0.25 - 0.50 0.25
LT 0.25 0.25 - 0.50 0.25
Hurricane Ridge Precipitation Forecast
Friday 0.25 - 0.50
Friday Night 0.25 - 0.50
Monday LT 0.10
Mt Baker Ski Area Precipitation Forecast
Friday LT 0.25
Friday Night LT 0.10
Monday 0
Washington Pass Precipitation Forecast
Friday LT 0.25
Friday Night LT 0.25
Monday LT 0.10
Leavenworth Precipitation Forecast
Friday 0.25
Friday Night 0.25
Monday LT 0.10
Stevens Pass Precipitation Forecast
Friday LT 0.25
Friday Night LT 0.25
Monday 0
Snoqualmie Pass Precipitation Forecast
Friday 0.25
Friday Night LT 0.10
Monday LT 0.10
Mission Ridge Precipitation Forecast
Friday 0.25 - 0.50
Friday Night 0.50 - 0.75
Monday LT 0.25
Crystal Mt Precipitation Forecast
Friday 0.25 - 0.50
Friday Night 0.25
Monday LT 0.10
Paradise Precipitation Forecast
Friday 0.25 - 0.50
Friday Night 0.25
Monday LT 0.10
White Pass Precipitation Forecast
Friday 0.25 - 0.50
Friday Night 0.25 - 0.50
Monday LT 0.25
Mt Hood Meadows Precipitation Forecast
Friday LT 0.25
Friday Night 0.25 - 0.50
Monday 0.25
Timberline Precipitation Forecast
Friday LT 0.25
Friday Night 0.25 - 0.50
Monday 0.25

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Friday Morning E 5 - 15 E 5 - 15 E 5 - 15 E 5 - 15 E 5 - 15
Friday Afternoon NE 10 - 20 NE 10 - 20 E 10 - 20 E 5 - 15 E 10 - 20
Friday Evening NE 15 - 25 NE 10 - 20 ESE 15 - 25 E 10 - 20 E 10 - 20
Friday Night NNE 15 - 25 NE 10 - 20 ESE 10 - 20 E 10 - 20 E 15 - 25
Saturday Morning NNE 10 - 20 ENE 10 - 20 ESE 15 - 25 E 10 - 20 E 15 - 25
Hurricane Ridge Elevation
Friday Morning E 5 - 15
Friday Afternoon NE 10 - 20
Friday Evening NE 15 - 25
Friday Night NNE 15 - 25
Saturday Morning NNE 10 - 20
Saturday Afternoon E 5 - 15
Mt. Baker Elevation
Friday Morning E 5 - 15
Friday Afternoon NE 10 - 20
Friday Evening NE 10 - 20
Friday Night NE 10 - 20
Saturday Morning ENE 10 - 20
Saturday Afternoon E 5 - 15
Stevens and Snoqualmie Pass Elevation
Friday Morning E 5 - 15
Friday Afternoon E 10 - 20
Friday Evening ESE 15 - 25
Friday Night ESE 10 - 20
Saturday Morning ESE 15 - 25
Saturday Afternoon ESE 10 - 20
Mt. Rainier Elevation
Friday Morning E 5 - 15
Friday Afternoon E 5 - 15
Friday Evening E 10 - 20
Friday Night E 10 - 20
Saturday Morning E 10 - 20
Saturday Afternoon E 5 - 15
Mt. Hood Elevation
Friday Morning E 5 - 15
Friday Afternoon E 10 - 20
Friday Evening E 10 - 20
Friday Night E 15 - 25
Saturday Morning E 15 - 25
Saturday Afternoon E 15 - 25
Hurricane Ridge Direction - Speed
Friday Morning E 5 - 15
Friday Afternoon NE 10 - 20
Friday Evening NE 15 - 25
Friday Night NNE 15 - 25
Saturday Morning NNE 10 - 20
Saturday Afternoon E 5 - 15
Mt. Baker Direction - Speed
Friday Morning E 5 - 15
Friday Afternoon NE 10 - 20
Friday Evening NE 10 - 20
Friday Night NE 10 - 20
Saturday Morning ENE 10 - 20
Saturday Afternoon E 5 - 15
Stevens and Snoqualmie Pass Direction - Speed
Friday Morning E 5 - 15
Friday Afternoon E 10 - 20
Friday Evening ESE 15 - 25
Friday Night ESE 10 - 20
Saturday Morning ESE 15 - 25
Saturday Afternoon ESE 10 - 20
Mt. Rainier Direction - Speed
Friday Morning E 5 - 15
Friday Afternoon E 5 - 15
Friday Evening E 10 - 20
Friday Night E 10 - 20
Saturday Morning E 10 - 20
Saturday Afternoon E 5 - 15
Mt. Hood Direction - Speed
Friday Morning E 5 - 15
Friday Afternoon E 10 - 20
Friday Evening E 10 - 20
Friday Night E 15 - 25
Saturday Morning E 15 - 25
Saturday Afternoon E 15 - 25

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
Friday Morning SE 5 - 15 SE 10 - 20 S 15 - 25 SW 10 - 20 SW 20 - 30
Friday Afternoon SE 15 - 25 SE 15 - 25 SE 30 - 40 SE 20 - 30 SW 25 - 35
Friday Evening E 20 - 30 E 25 - 35 ESE 30 - 40 SE 15 - 25 SW 20 - 30
Friday Night E 10 - 20 E 20 - 30 ESE 20 - 30 SE 15 - 25 SSW 20 - 30
Saturday Morning E 5 - 15 E 10 - 20 E 5 - 15 S 10 - 20 SSW 20 - 30
Mt. Baker Direction - Speed
Friday Morning SE 5 - 15
Friday Afternoon SE 15 - 25
Friday Evening E 20 - 30
Friday Night E 10 - 20
Saturday Morning E 5 - 15
Saturday Afternoon E 5 - 15
Washington Pass Direction - Speed
Friday Morning SE 10 - 20
Friday Afternoon SE 15 - 25
Friday Evening E 25 - 35
Friday Night E 20 - 30
Saturday Morning E 10 - 20
Saturday Afternoon E 5 - 15
Stevens and Snoqualmie Pass Direction - Speed
Friday Morning S 15 - 25
Friday Afternoon SE 30 - 40
Friday Evening ESE 30 - 40
Friday Night ESE 20 - 30
Saturday Morning E 5 - 15
Saturday Afternoon SW 5 - 15
Mt. Rainier Direction - Speed
Friday Morning SW 10 - 20
Friday Afternoon SE 20 - 30
Friday Evening SE 15 - 25
Friday Night SE 15 - 25
Saturday Morning S 10 - 20
Saturday Afternoon SW 10 - 20
Mt. Hood Direction - Speed
Friday Morning SW 20 - 30
Friday Afternoon SW 25 - 35
Friday Evening SW 20 - 30
Friday Night SSW 20 - 30
Saturday Morning SSW 20 - 30
Saturday Afternoon SW 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 Mar 12, 2020

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