Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Saturday & Sunday
After all the wild wet weather last week in the Olympics and Cascades, Friday was pretty benign with light winds, some sun mainly in the morning, little if any precipitation and little change in snow levels.
A elongated, split north to south oriented upper trough will move onto the US west coast on Saturday with the main stronger part of the trough moving across California. But some moisture and precipitation will move out of the south part of the trough and south to north over the Northwest. A little more precipitation should be seen on the south volcanoes by Saturday afternoon.
A little break should be seen Saturday night.
A negatively tilted or southeast to northwest oriented upper trough and front should cross the Northwest on Sunday. In the Olympics and Cascades this should cause a modest increase in alpine winds and a little more precipitation by Sunday afternoon especially on the volcanoes.
Snow levels shouldn't change much on Saturday and Sunday but should be a little higher in the afternoon hours.
Weather Forecast
Olympics
| Saturday - Saturday |
Increasing light rain or snow. |
| Saturday Night |
Decreasing light showers. |
| Sunday |
Increasing light rain or snow becoming light occasional moderate in the afternoon. |
| Sunday Night |
Decreasing light showers. |
Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes
| Saturday - Saturday |
Increasing light rain or snow becoming light occasional moderate on the south volcanoes in the afternoon and evening. |
| Saturday Night |
Decreasing light showers. |
| Sunday |
Increasing light rain or snow becoming moderate on the volcanoes in the afternoon and evening. |
| Sunday Night |
Decreasing light showers. |
East slopes of the Washington Cascades
| Saturday - Saturday |
Increasing light rain or snow. |
| Saturday Night |
Decreasing light showers heaviest higher elevations. |
| Sunday |
Increasing light rain or snow. |
| Sunday Night |
Decreasing light showers heaviest higher elevations. |
Mt. Hood Area
| Saturday - Saturday |
Increasing light rain or snow becoming light occasional moderate in the afternoon and evening. |
| Saturday Night |
Decreasing light showers. |
| Sunday |
Increasing light rain or snow becoming moderate in the afternoon and evening. |
| Sunday Night |
Decreasing light showers. |
Issued: 6:56 AM PST Saturday, February 18, 2017
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Saturday Morning | Snow Level * | 3000' | 3000' | 0' | ' | ' | 3000' | ' | 3500' |
| Saturday Afternoon | Snow Level * | 3500' | 3500' | 2500' | ' | ' | 3500' | ' | 4000' |
| Saturday Night - Sunday Morning | Snow Level | 3000' | 3000' | 2000' | ' | ' | 3000' | ' | 3500' |
| Sunday Afternoon | Snow Level * | 3500' | 3500' | 2500' | ' | ' | 3500' | ' | 4000' |
| Sunday Night | Snow Level * | 3000' | 2500' | 1500' | ' | ' | 2500' | ' | 3000' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning |
Snow Level 3000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Saturday Night - Sunday Morning |
Snow Level 3000' |
| Sunday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Sunday Night |
Snow Level 3000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning |
Snow Level 3000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Saturday Night - Sunday Morning |
Snow Level 3000' |
| Sunday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Sunday Night |
Snow Level 2500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 2500' (Easterly Flow *) |
| Saturday Night - Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 2500' (Easterly Flow *) |
| Sunday Night |
Snow Level 1500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Saturday Morning |
Snow Level ' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level ' (Easterly Flow *) |
| Saturday Night - Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' (Easterly Flow *) |
| Sunday Night |
Snow Level ' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level ' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level ' (Easterly Flow *) |
| Saturday Night - Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' (Easterly Flow *) |
| Sunday Night |
Snow Level ' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level 3000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Saturday Night - Sunday Morning |
Snow Level 3000' |
| Sunday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Sunday Night |
Snow Level 2500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Morning |
Snow Level ' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level ' (Easterly Flow *) |
| Saturday Night - Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' (Easterly Flow *) |
| Sunday Night |
Snow Level ' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning |
Snow Level 3500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Saturday Night - Sunday Morning |
Snow Level 3500' |
| Sunday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Sunday Night |
Snow Level 3000' (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 | |
|---|---|---|
| Hurricane Ridge | LT 0.25 | LT 0.25 |
| Mt Baker Ski Area | LT 0.25 | 0.75 - 1.00 |
| Washington Pass | LT 0.25 | LT 0.25 |
| Stevens Pass | LT 0.25 | 0.25 - 0.50 |
| Snoqualmie Pass | 0.25 - 0.50 | 0.25 - 0.50 |
| Mission Ridge | LT 0.25 | LT 0.25 |
| Crystal Mt | 0.25 - 0.50 | 0.50 - 0.75 |
| Paradise | 0 - 0.50 | 0.75 - 1.00 |
| White Pass | LT 0.25 | 0.25 - 0.50 |
| Mt Hood Meadows | 0.50 - 0.75 | 0.75 - 1.00 |
| Timberline | 0 - 0.75 | 0 - 1.00 |
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: 6:56 AM PST Saturday, February 18, 2017
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Morning | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | --- - | VAR 0 - 10 |
| Saturday Afternoon | SW 5 - 15 | SW 0 - 10 | SW 5 - 15 | --- - | SW 10 - 20 |
| Saturday Night | SSW 15 - 25 | SSW 10 - 20 | SSW 15 - 25 | --- - | SSW 20 - 30 |
| Sunday Morning | SSW 20 - 30 | SSW 15 - 25 | SSW 15 - 25 | --- - | SSW 15 - 25 |
| Sunday Afternoon | SSW 25 - 35 | SSW 20 - 30 | SSW 20 - 30 | --- - | SSW 20 - 30 |
| Sunday Night | SW 15 - 25 | SSW 15 - 25 | SSE 10 - 20 | --- - | SSE 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 5 - 15 |
| Saturday Night | SSW 15 - 25 |
| Sunday Morning | SSW 20 - 30 |
| Sunday Afternoon | SSW 25 - 35 |
| Sunday Night | SW 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Saturday Night | SSW 10 - 20 |
| Sunday Morning | SSW 15 - 25 |
| Sunday Afternoon | SSW 20 - 30 |
| Sunday Night | SSW 15 - 25 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 5 - 15 |
| Saturday Night | SSW 15 - 25 |
| Sunday Morning | SSW 15 - 25 |
| Sunday Afternoon | SSW 20 - 30 |
| Sunday Night | SSE 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 10 - 20 |
| Saturday Night | SSW 20 - 30 |
| Sunday Morning | SSW 15 - 25 |
| Sunday Afternoon | SSW 20 - 30 |
| Sunday Night | SSE 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 5 - 15 |
| Saturday Night | SSW 15 - 25 |
| Sunday Morning | SSW 20 - 30 |
| Sunday Afternoon | SSW 25 - 35 |
| Sunday Night | SW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Saturday Night | SSW 10 - 20 |
| Sunday Morning | SSW 15 - 25 |
| Sunday Afternoon | SSW 20 - 30 |
| Sunday Night | SSW 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 5 - 15 |
| Saturday Night | SSW 15 - 25 |
| Sunday Morning | SSW 15 - 25 |
| Sunday Afternoon | SSW 20 - 30 |
| Sunday Night | SSE 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 10 - 20 |
| Saturday Night | SSW 20 - 30 |
| Sunday Morning | SSW 15 - 25 |
| Sunday Afternoon | SSW 20 - 30 |
| Sunday Night | SSE 10 - 20 |
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 | SSW 10 - 20 | SSW 15 - 25 | SSW 10 - 20 | --- - | SSW 15 - 25 |
| Saturday Afternoon | SW 15 - 25 | SW 10 - 20 | SW 15 - 25 | --- - | SW 20 - 30 |
| Saturday Night | SSW 20 - 30 | SSW 10 - 20 | SSW 20 - 30 | --- - | SW 35 - 50 |
| Sunday Morning | SSW 25 - 35 | SSW 20 - 30 | SSW 25 - 35 | --- - | SW 30 - 45 |
| Sunday Afternoon | SW 25 - 35 | SW 20 - 30 | SW 40 - 60 | --- - | SW 40 - 60 |
| Sunday Night | SW 25 - 35 | SW 25 - 35 | SW 25 - 35 | --- - | SW 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | SSW 10 - 20 |
| Saturday Afternoon | SW 15 - 25 |
| Saturday Night | SSW 20 - 30 |
| Sunday Morning | SSW 25 - 35 |
| Sunday Afternoon | SW 25 - 35 |
| Sunday Night | SW 25 - 35 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Morning | SSW 15 - 25 |
| Saturday Afternoon | SW 10 - 20 |
| Saturday Night | SSW 10 - 20 |
| Sunday Morning | SSW 20 - 30 |
| Sunday Afternoon | SW 20 - 30 |
| Sunday Night | SW 25 - 35 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | SSW 10 - 20 |
| Saturday Afternoon | SW 15 - 25 |
| Saturday Night | SSW 20 - 30 |
| Sunday Morning | SSW 25 - 35 |
| Sunday Afternoon | SW 40 - 60 |
| Sunday Night | SW 25 - 35 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | SSW 15 - 25 |
| Saturday Afternoon | SW 20 - 30 |
| Saturday Night | SW 35 - 50 |
| Sunday Morning | SW 30 - 45 |
| Sunday Afternoon | SW 40 - 60 |
| Sunday Night | SW 25 - 35 |
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 17, 2017
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