Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Saturday & Tuesday
A longwave trough axis is centered over the West Coast this morning. Light snow that had rotated up from the south Friday out ahead of the trough, generally produced 2-4 inches of new snow throughout the Olympics and Cascades, except locally up to 9 inches for Mt. Baker. As the trough slowly passes through today, scattered snow showers should mostly be confined to the west slopes. Most areas will see a partial clearing trend this afternoon, except with clouds staying banked up mainly against the west slopes of the central and south Washington Cascades.
Christmas Day looks mostly sunny and cold. An upper ridge will move over the PNW on Monday providing us with a dry day with fairly light winds.
An incoming Pacific frontal system will spread high clouds over the area Sunday night but precipitation should hold off until Monday.
Weather Forecast
Washington Cascades
| Saturday |
Mostly cloudy with scattered light snow showers. Partial clearing this afternoon, especially north Cascades. |
| Saturday Night |
Partly cloudy. |
| Sunday |
Mostly sunny. Areas of low clouds in the morning. |
| Sunday Night |
Increasing high clouds overnight. |
Olympics
| Saturday |
Partly sunny with isolated light snow showers. |
| Saturday Night |
Mostly clear. |
| Sunday |
Mostly sunny. |
| Sunday Night |
Becoming cloudy overnight. |
Mt. Hood Area
| Saturday |
Mostly cloudy with scattered light snow showers this morning, becoming partly sunny this afternoon. |
| Saturday Night |
Partly cloudy. |
| Sunday |
Mostly sunny. Areas of low clouds in the morning. |
| Sunday Night |
Increasing high clouds overnight. |
Issued: 7:00 AM PST Saturday, December 24, 2016
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Saturday | Snow Level | 1000' | 500' | 0' | ' | ' | 500' | ' | 1000' |
| Saturday Night - Sunday Night | Freezing Level | 1000' | 0' | 0' | ' | ' | 0' | ' | 500' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday |
Snow Level 1000' |
| Saturday Night - Sunday Night |
Freezing Level 1000' |
| Mt. Baker | Elevation |
|---|---|
| Saturday |
Snow Level 500' |
| Saturday Night - Sunday Night |
Freezing Level 0' |
| Washington Pass | Elevation |
|---|---|
| Saturday |
Snow Level 0' |
| Saturday Night - Sunday Night |
Freezing Level 0' |
| Leavenworth | Elevation |
|---|---|
| Saturday |
Snow Level ' |
| Saturday Night - Sunday Night |
Freezing Level ' |
| Stevens Pass | Elevation |
|---|---|
| Saturday |
Snow Level ' |
| Saturday Night - Sunday Night |
Freezing Level ' |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday |
Snow Level 500' |
| Saturday Night - Sunday Night |
Freezing Level 0' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday |
Snow Level ' |
| Saturday Night - Sunday Night |
Freezing Level ' |
| Mt. Hood | Elevation |
|---|---|
| Saturday |
Snow Level 1000' |
| Saturday Night - Sunday Night |
Freezing Level 500' |
* 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 | |
|---|---|---|
| Hurricane Ridge | LT 0.10 | LT 0.10 |
| Mt Baker Ski Area | LT 0.10 | LT 0.10 |
| Washington Pass | LT 0.10 | LT 0.10 |
| Stevens Pass | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | LT 0.10 | LT 0.10 |
| Mission Ridge | LT 0.10 | LT 0.10 |
| Crystal Mt | LT 0.10 | LT 0.10 |
| Paradise | LT 0.10 | LT 0.10 |
| White Pass | LT 0.10 | LT 0.10 |
| Mt Hood Meadows | LT 0.10 | LT 0.10 |
| Timberline | LT 0.10 | LT 0.10 |
LT = less than; WE or Water equivalent is the liquid water equivalent of melted snow in hundredths of inches. As a rough approximation 1 inch of snow = about .10 inches WE, or 10 inches of snow = about 1 inch WE.
Issued: 7:00 AM PST Saturday, December 24, 2016
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Morning | VAR 0 - 10 | N 0 - 10 | NW 5 - 15 | --- - | NW 10 - 20 |
| Saturday Afternoon - Saturday Night | NE 0 - 10 | NE 5 - 15 | NW 0 - 10 | --- - | NW 5 - 15 |
| Sunday - Sunday Night | VAR 0 - 10 | W 0 - 10 | VAR 0 - 10 | --- - | VAR 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon - Saturday Night | NE 0 - 10 |
| Sunday - Sunday Night | VAR 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning | N 0 - 10 |
| Saturday Afternoon - Saturday Night | NE 5 - 15 |
| Sunday - Sunday Night | W 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning | NW 5 - 15 |
| Saturday Afternoon - Saturday Night | NW 0 - 10 |
| Sunday - Sunday Night | VAR 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon - Saturday Night | --- - |
| Sunday - Sunday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon - Saturday Night | NW 5 - 15 |
| Sunday - Sunday Night | VAR 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon - Saturday Night | NE 0 - 10 |
| Sunday - Sunday Night | VAR 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | N 0 - 10 |
| Saturday Afternoon - Saturday Night | NE 5 - 15 |
| Sunday - Sunday Night | W 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | NW 5 - 15 |
| Saturday Afternoon - Saturday Night | NW 0 - 10 |
| Sunday - Sunday Night | VAR 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon - Saturday Night | --- - |
| Sunday - Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon - Saturday Night | NW 5 - 15 |
| Sunday - Sunday Night | VAR 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 | |
|---|---|---|---|---|---|
| Saturday Morning | NW 0 - 10 | NW 0 - 10 | NW 10 - 20 | --- - | NW 20 - 30 |
| Saturday Afternoon | NNE 0 - 10 | NNE 0 - 10 | N 5 - 15 | --- - | NW 15 - 25 |
| Sunday | W 5 - 15 | W 5 - 15 | W 0 - 10 | --- - | NW 0 - 10 |
| Sunday Night | W 10 - 20 | W 5 - 15 | W 10 - 20 | --- - | W 5 - 15 |
| Saturday Night | NE 0 - 10 | NE 0 - 10 | NE 0 - 10 | --- - | NW 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | NW 0 - 10 |
| Saturday Afternoon | NNE 0 - 10 |
| Sunday | W 5 - 15 |
| Sunday Night | W 10 - 20 |
| Saturday Night | NE 0 - 10 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Morning | NW 0 - 10 |
| Saturday Afternoon | NNE 0 - 10 |
| Sunday | W 5 - 15 |
| Sunday Night | W 5 - 15 |
| Saturday Night | NE 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon | N 5 - 15 |
| Sunday | W 0 - 10 |
| Sunday Night | W 10 - 20 |
| Saturday Night | NE 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Sunday | --- - |
| Sunday Night | --- - |
| Saturday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | NW 20 - 30 |
| Saturday Afternoon | NW 15 - 25 |
| Sunday | NW 0 - 10 |
| Sunday Night | W 5 - 15 |
| Saturday Night | NW 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Dec 20, 2016
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.