Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Friday & Thursday
A weak front offshore continues to split and further weaken as it approaches the coastline. Friday will be the last day of mild freezing levels as a slow cooling trend starts today and continues through the weekend. Clouds will increase today and Friday night as the remnants of the frontal system push inland. Easterly flow through the passes will continue to produce locally cooler temperatures and at times low clouds and fog.
Very light precipitation should begin overnight with shower coverage increasing on Saturday however only insignificant snow accumulations are expected. Showers should decrease Saturday night as a weak ridge builds offshore.
Weather Forecast
Olympics, Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes and Mt. Hood area
| Friday |
Mild. Partly to mostly cloudy. Increasing mid and high level clouds today. Locally cooler with low clouds and areas of fog Cascade Passes. |
| Friday Night |
Cloudy. Very light rain and snow showers overnight. |
| Saturday |
Cloudy with light rain and snow showers. |
| Saturday Night |
Mostly cloudy with decreasing light rain and snow showers overnight. |
East slopes of the Washington Cascades
| Friday |
Partly to mostly cloudy. Increasing mid and high level clouds today. Locally cooler with low clouds and areas of fog lower elevations east slopes. |
| Friday Night |
Cloudy. Very light rain and snow showers overnight near the Cascade crest. |
| Saturday |
Cloudy with light rain and snow showers. |
| Saturday Night |
Mostly cloudy with decreasing light rain and snow showers overnight. |
Issued: 7:47 AM PST Friday, January 9, 2015
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday Morning | Freezing Level * | 10000' | 9000' | 7500' | ' | ' | 9000' | ' | 10000' |
| Friday Afternoon | Freezing Level * | 8500' | 8000' | 6000' | ' | ' | 8000' | ' | 9000' |
| Friday Night - Saturday Morning | Snow Level * | 5500' | 5500' | 4000' | ' | ' | 5000' | ' | 5500' |
| Saturday Afternoon | Snow Level | 4500' | 4000' | 4000' | ' | ' | 4500' | ' | 5000' |
| Saturday Night | Snow Level | 4000' | 3500' | 3500' | ' | ' | 4000' | ' | 4500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 8500' (Easterly Flow *) |
| Friday Night - Saturday Morning |
Snow Level 5500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 4500' |
| Saturday Night |
Snow Level 4000' |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning |
Freezing Level 9000' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 8000' (Easterly Flow *) |
| Friday Night - Saturday Morning |
Snow Level 5500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 4000' |
| Saturday Night |
Snow Level 3500' |
| Washington Pass | Elevation |
|---|---|
| Friday Morning |
Freezing Level 7500' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 6000' (Easterly Flow *) |
| Friday Night - Saturday Morning |
Snow Level 4000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 4000' |
| Saturday Night |
Snow Level 3500' |
| Leavenworth | Elevation |
|---|---|
| Friday Morning |
Freezing Level ' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level ' (Easterly Flow *) |
| Friday Night - Saturday Morning |
Snow Level ' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night |
Snow Level ' |
| Stevens Pass | Elevation |
|---|---|
| Friday Morning |
Freezing Level ' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level ' (Easterly Flow *) |
| Friday Night - Saturday Morning |
Snow Level ' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night |
Snow Level ' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning |
Freezing Level 9000' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 8000' (Easterly Flow *) |
| Friday Night - Saturday Morning |
Snow Level 5000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 4500' |
| Saturday Night |
Snow Level 4000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Morning |
Freezing Level ' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level ' (Easterly Flow *) |
| Friday Night - Saturday Morning |
Snow Level ' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night |
Snow Level ' |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 9000' (Easterly Flow *) |
| Friday Night - Saturday Morning |
Snow Level 5500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 5000' |
| Saturday Night |
Snow Level 4500' |
* 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
| Thursday | Thursday | |
|---|---|---|
| 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 0.25 |
| Timberline | LT 0.10 | LT 0.25 |
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: 7:47 AM PST Friday, January 9, 2015
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Morning | S 0 - 10 | S 0 - 10 | SE 5 - 15 | --- - | SE 5 - 15 |
| Friday Afternoon - Friday Night | SW 0 - 10 | SW 0 - 10 | SW 0 - 10 | --- - | WSW 0 - 10 |
| Saturday | W 0 - 10 | W 0 - 10 | W 5 - 15 | --- - | W 5 - 15 |
| Saturday Night | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | --- - | SW 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning | S 0 - 10 |
| Friday Afternoon - Friday Night | SW 0 - 10 |
| Saturday | W 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning | S 0 - 10 |
| Friday Afternoon - Friday Night | SW 0 - 10 |
| Saturday | W 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning | SE 5 - 15 |
| Friday Afternoon - Friday Night | SW 0 - 10 |
| Saturday | W 5 - 15 |
| Saturday Night | VAR 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Morning | --- - |
| Friday Afternoon - Friday Night | --- - |
| Saturday | --- - |
| Saturday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning | SE 5 - 15 |
| Friday Afternoon - Friday Night | WSW 0 - 10 |
| Saturday | W 5 - 15 |
| Saturday Night | SW 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Morning | S 0 - 10 |
| Friday Afternoon - Friday Night | SW 0 - 10 |
| Saturday | W 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | S 0 - 10 |
| Friday Afternoon - Friday Night | SW 0 - 10 |
| Saturday | W 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | SE 5 - 15 |
| Friday Afternoon - Friday Night | SW 0 - 10 |
| Saturday | W 5 - 15 |
| Saturday Night | VAR 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | --- - |
| Friday Afternoon - Friday Night | --- - |
| Saturday | --- - |
| Saturday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | SE 5 - 15 |
| Friday Afternoon - Friday Night | WSW 0 - 10 |
| Saturday | W 5 - 15 |
| Saturday Night | SW 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 | |
|---|---|---|---|---|---|
| Friday Morning | SW 5 - 15 | SW 5 - 15 | SW 5 - 15 | --- - | SW 5 - 15 |
| Friday Afternoon - Saturday Morning | W 10 - 20 | W 10 - 20 | W 10 - 20 | --- - | W 10 - 20 |
| Saturday Afternoon | W 5 - 15 | W 10 - 20 | W 10 - 20 | --- - | WSW 15 - 25 |
| Saturday Night | W 0 - 10 | W 0 - 10 | W 0 - 10 | --- - | W 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | SW 5 - 15 |
| Friday Afternoon - Saturday Morning | W 10 - 20 |
| Saturday Afternoon | W 5 - 15 |
| Saturday Night | W 0 - 10 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Morning | SW 5 - 15 |
| Friday Afternoon - Saturday Morning | W 10 - 20 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night | W 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | SW 5 - 15 |
| Friday Afternoon - Saturday Morning | W 10 - 20 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night | W 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | --- - |
| Friday Afternoon - Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | SW 5 - 15 |
| Friday Afternoon - Saturday Morning | W 10 - 20 |
| Saturday Afternoon | WSW 15 - 25 |
| Saturday Night | W 5 - 15 |
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.
Issued: 7:47 AM PST Friday, January 9, 2015
Extended Weather Synopsis for Thursday night through Thursday
On Sunday, an upper level disturbance offshore will approach the Oregon coast. Light showers should generally diminish over the Olympics and Cascades, with some partial clearing possible Sunday afternoon.
This system should largely miss Washington State but bring light rain and snow to the Mt. Hood area Sunday night. A stronger upper level ridge will begin to build offshore on Monday, leading to a stretch of dry weather mid-week.
The next weather system should be forced northward into British Columbia due to the ridge, but increased clouds from the warm front may brush the Olympics and north Cascades Monday and Tuesday.
Extended Weather
Olympics and Washington Cascades
Mostly cloudy with partial lifting and clearing Sunday afternoon. Scattered rain and snow showers becoming isolated in the afternoon.
Cloudy.
Mostly cloudy Olympics and north Cascades. Partly cloudy south and central Cascades.
Mt. Hood Area
Mostly cloudy scattered rain and snow showers becoming isolated in the afternoon.
Light rain and snow developing overnight. Cloudy.
Partly cloudy.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Sunday - Monday Morning | Snow Level | 2500' - 3500' | 2500' - 3500' | 3500' - 4500' | * |
| Monday Afternoon - Monday Night | Freezing Level | 2000' - 3000' | 2500' - 3500' | 5000' - 6000' | |
| Tuesday | Freezing Level | 5500' - 6500' | 5500' - 6500' | 7500' - 8500' |
| Mt. Baker | Elevation |
|---|---|
| Sunday - Monday Morning |
Snow Level 2500' - 3500' (Easterly Flow *) |
| Monday Afternoon - Monday Night |
Freezing Level 2000' - 3000' |
| Tuesday |
Freezing Level 5500' - 6500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday - Monday Morning |
Snow Level 2500' - 3500' (Easterly Flow *) |
| Monday Afternoon - Monday Night |
Freezing Level 2500' - 3500' |
| Tuesday |
Freezing Level 5500' - 6500' |
| Mt. Hood | Elevation |
|---|---|
| Sunday - Monday Morning |
Snow Level 3500' - 4500' (Easterly Flow *) |
| Monday Afternoon - Monday Night |
Freezing Level 5000' - 6000' |
| Tuesday |
Freezing Level 7500' - 8500' |
* 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 Jan 8, 2015
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