Issued: 7:04 AM PST Sunday, February 10, 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 Sunday & Tuesday

A lingering closed low will depart the region early Sunday, leaving sunny and cold conditions under light NW flow on Sunday. 

A perturbation is forecast to spawn a surface low over Vancouver Island that will develop light to moderate snow, first over the Olympics Sunday afternoon and spreading to the Cascades Monday night. The low is forecast to track through the straight of Juan de Fuca and the central Washington Cascades during the course of the night. The system will bring a shot of strong winds to the west slopes of the Cascades from about I-90 southward during the evening areas. Paradise and Mt. Hood will be the big winners with this system with 8-12" of snow for Paradise and 12" plus for the Hood area, while most other areas will receive 2-4" with slightly more for Crystal and 6-8" for White Pass. Snow levels will be at sea level.

On Monday, there will be little to no break in the action as a  stronger low brings a warm front into the Mt. Hood area and S Washington Cascades with increasing easterly flow and snowfall as the low lifts northward. This system will be one to watch as it will bring heavy snow to the mountains and likely the Puget Sound lowlands as well.

 

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

Sunday Sunday Night Tuesday
4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge LT 0.10 0.25 LT 0.25
Mt Baker Ski Area 0 LT 0.25 LT 0.10
Washington Pass 0 LT 0.25 LT 0.10
Leavenworth 0 0.25 LT 0.10
Stevens Pass 0 0.25 - 0.50 LT 0.25
Snoqualmie Pass 0 0.50 LT 0.25
Mission Ridge 0 0.25 LT 0.25
Crystal Mt 0 0.25 - 0.50 0.25
Paradise 0 0.50 - 0.75 0.50
White Pass 0 0.50 0.50
Mt Hood Meadows LT 0.10 1.00 1.00 - 1.50
LT 0.10 1.00 1.00 - 1.50
Hurricane Ridge Precipitation Forecast
Sunday LT 0.10
Sunday Night 0.25
Tuesday LT 0.25
Mt Baker Ski Area Precipitation Forecast
Sunday 0
Sunday Night LT 0.25
Tuesday LT 0.10
Washington Pass Precipitation Forecast
Sunday 0
Sunday Night LT 0.25
Tuesday LT 0.10
Leavenworth Precipitation Forecast
Sunday 0
Sunday Night 0.25
Tuesday LT 0.10
Stevens Pass Precipitation Forecast
Sunday 0
Sunday Night 0.25 - 0.50
Tuesday LT 0.25
Snoqualmie Pass Precipitation Forecast
Sunday 0
Sunday Night 0.50
Tuesday LT 0.25
Mission Ridge Precipitation Forecast
Sunday 0
Sunday Night 0.25
Tuesday LT 0.25
Crystal Mt Precipitation Forecast
Sunday 0
Sunday Night 0.25 - 0.50
Tuesday 0.25
Paradise Precipitation Forecast
Sunday 0
Sunday Night 0.50 - 0.75
Tuesday 0.50
White Pass Precipitation Forecast
Sunday 0
Sunday Night 0.50
Tuesday 0.50
Mt Hood Meadows Precipitation Forecast
Sunday LT 0.10
Sunday Night 1.00
Tuesday 1.00 - 1.50
Timberline Precipitation Forecast
Sunday LT 0.10
Sunday Night 1.00
Tuesday 1.00 - 1.50

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Sunday Morning SW 5 - 15 SSE 0 - 10 WSW 5 - 15 WSW 5 - 15 WSW 5 - 15
Sunday Afternoon SW 10 - 20 SE 5 - 15 SW 10 - 20 SSW 10 - 20 WSW 15 - 25
Sunday Evening WNW 5 - 15 NE 5 - 15 WSW 20 - 30 WSW 20 - 30 WSW 40 - 60
Sunday Night VAR 0 - 10 E 5 - 15 W 10 - 20 WSW 10 - 20 WSW 35 - 50
Monday Morning ESE 5 - 15 E 5 - 15 VAR 0 - 10 S 5 - 15 WSW 25 - 35
Hurricane Ridge Elevation
Sunday Morning SW 5 - 15
Sunday Afternoon SW 10 - 20
Sunday Evening WNW 5 - 15
Sunday Night VAR 0 - 10
Monday Morning ESE 5 - 15
Monday Afternoon E 10 - 20
Mt. Baker Elevation
Sunday Morning SSE 0 - 10
Sunday Afternoon SE 5 - 15
Sunday Evening NE 5 - 15
Sunday Night E 5 - 15
Monday Morning E 5 - 15
Monday Afternoon ENE 5 - 15
Stevens and Snoqualmie Pass Elevation
Sunday Morning WSW 5 - 15
Sunday Afternoon SW 10 - 20
Sunday Evening WSW 20 - 30
Sunday Night W 10 - 20
Monday Morning VAR 0 - 10
Monday Afternoon E 10 - 20
Mt. Rainier Elevation
Sunday Morning WSW 5 - 15
Sunday Afternoon SSW 10 - 20
Sunday Evening WSW 20 - 30
Sunday Night WSW 10 - 20
Monday Morning S 5 - 15
Monday Afternoon ESE 10 - 20
Mt. Hood Elevation
Sunday Morning WSW 5 - 15
Sunday Afternoon WSW 15 - 25
Sunday Evening WSW 40 - 60
Sunday Night WSW 35 - 50
Monday Morning WSW 25 - 35
Monday Afternoon SSW 30 - 45
Hurricane Ridge Direction - Speed
Sunday Morning SW 5 - 15
Sunday Afternoon SW 10 - 20
Sunday Evening WNW 5 - 15
Sunday Night VAR 0 - 10
Monday Morning ESE 5 - 15
Monday Afternoon E 10 - 20
Mt. Baker Direction - Speed
Sunday Morning SSE 0 - 10
Sunday Afternoon SE 5 - 15
Sunday Evening NE 5 - 15
Sunday Night E 5 - 15
Monday Morning E 5 - 15
Monday Afternoon ENE 5 - 15
Stevens and Snoqualmie Pass Direction - Speed
Sunday Morning WSW 5 - 15
Sunday Afternoon SW 10 - 20
Sunday Evening WSW 20 - 30
Sunday Night W 10 - 20
Monday Morning VAR 0 - 10
Monday Afternoon E 10 - 20
Mt. Rainier Direction - Speed
Sunday Morning WSW 5 - 15
Sunday Afternoon SSW 10 - 20
Sunday Evening WSW 20 - 30
Sunday Night WSW 10 - 20
Monday Morning S 5 - 15
Monday Afternoon ESE 10 - 20
Mt. Hood Direction - Speed
Sunday Morning WSW 5 - 15
Sunday Afternoon WSW 15 - 25
Sunday Evening WSW 40 - 60
Sunday Night WSW 35 - 50
Monday Morning WSW 25 - 35
Monday Afternoon SSW 30 - 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
Sunday Morning SW 10 - 20 SW 5 - 15 W 15 - 25 W 15 - 25 NNW 15 - 25
Sunday Afternoon SSW 10 - 20 SW 10 - 20 WSW 35 - 50 WSW 35 - 50 W 35 - 50
Sunday Evening SW 10 - 20 SE 10 - 20 WSW 40 - 60 WSW 40 - 60 WSW 60 - 80
Sunday Night SW 5 - 15 SW 10 - 20 W 25 - 35 W 40 - 60 WSW 50 - 70
Monday Morning S 5 - 15 SW 5 - 15 WSW 30 - 45 WSW 40 - 60 WSW 45 - 65
Mt. Baker Direction - Speed
Sunday Morning SW 10 - 20
Sunday Afternoon SSW 10 - 20
Sunday Evening SW 10 - 20
Sunday Night SW 5 - 15
Monday Morning S 5 - 15
Monday Afternoon SW 10 - 20
Washington Pass Direction - Speed
Sunday Morning SW 5 - 15
Sunday Afternoon SW 10 - 20
Sunday Evening SE 10 - 20
Sunday Night SW 10 - 20
Monday Morning SW 5 - 15
Monday Afternoon SW 5 - 15
Stevens and Snoqualmie Pass Direction - Speed
Sunday Morning W 15 - 25
Sunday Afternoon WSW 35 - 50
Sunday Evening WSW 40 - 60
Sunday Night W 25 - 35
Monday Morning WSW 30 - 45
Monday Afternoon SW 30 - 45
Mt. Rainier Direction - Speed
Sunday Morning W 15 - 25
Sunday Afternoon WSW 35 - 50
Sunday Evening WSW 40 - 60
Sunday Night W 40 - 60
Monday Morning WSW 40 - 60
Monday Afternoon SW 45 - 65
Mt. Hood Direction - Speed
Sunday Morning NNW 15 - 25
Sunday Afternoon W 35 - 50
Sunday Evening WSW 60 - 80
Sunday Night WSW 50 - 70
Monday Morning WSW 45 - 65
Monday Afternoon SW 65 - 85

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 9, 2019

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