Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Saturday & Monday
An upper level weather disturbance sliding down from the British Columbia coast will spread light snow over the Olympics and Washington Cascades later this morning. Light snow should increase this afternoon and continue overnight. Moisture with this system will mostly miss Mt. Hood. Snow showers in NW flow should continue on Sunday as a warm front approaches from the west. The warm front should traverse the area from west to east but not significantly increase snow levels as it passes through. Steady snow should increase and become light to moderate Sunday night. Arctic air originating from the Yukon should begin to slide into eastern Washington and Oregon Sunday night...with strong surface high pressure moving in east of the crest and beginning a period of cold easterly flow through the passes.
Weather Forecast
Olympics, Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes
| Saturday Morning |
Mostly cloudy with increasing light snow Olympics and north Cascades. |
| Saturday Afternoon - Night |
Light to moderate snow...heaviest central Washington Cascades. |
| Sunday Night |
Light snow showers. |
| Sunday - Sunday Evening |
Light snow showers Sunday morning becoming light to moderate snow in the afternoon and evening. |
East slopes of the Washington Cascades
| Saturday Morning |
Partly to mostly cloudy with developing light snow northeast Cascades. |
| Saturday Afternoon - Night |
Light to moderate snow. |
| Sunday - Sunday Evening |
Scattered light snow showers Sunday morning becoming light to occasionally moderate snow in the afternoon and evening. |
| Sunday Night |
Scattered light snow showers. |
Mt. Hood Area
| Saturday Morning |
Mostly cloudy with light snow possible in the afternoon. |
| Saturday Afternoon - Night |
Mostly cloudy with occasional light snow. |
| Sunday - Sunday Night |
Isolated snow showers Sunday morning becoming light to moderate snow in the afternoon and continuing overnight. |
Issued: 7:09 AM PST Saturday, February 22, 2014
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 | 1000' | ' | ' | ' | ' | 500' | ' | 2000' |
| Saturday Afternoon - Sunday Morning | Snow Level | 2000' | ' | ' | ' | ' | 1500' | ' | 3000' |
| Sunday Mid-day - Sunday Night | Snow Level * | 1500' | ' | ' | ' | ' | 1500' | ' | 4000' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning |
Snow Level 1000' |
| Saturday Afternoon - Sunday Morning |
Snow Level 2000' |
| Sunday Mid-day - Sunday Night |
Snow Level 1500' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning |
Snow Level ' |
| Saturday Afternoon - Sunday Morning |
Snow Level ' |
| Sunday Mid-day - Sunday Night |
Snow Level ' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level ' |
| Saturday Afternoon - Sunday Morning |
Snow Level ' |
| Sunday Mid-day - Sunday Night |
Snow Level ' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Saturday Morning |
Snow Level ' |
| Saturday Afternoon - Sunday Morning |
Snow Level ' |
| Sunday Mid-day - Sunday Night |
Snow Level ' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level ' |
| Saturday Afternoon - Sunday Morning |
Snow Level ' |
| Sunday Mid-day - Sunday Night |
Snow Level ' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level 500' |
| Saturday Afternoon - Sunday Morning |
Snow Level 1500' |
| Sunday Mid-day - Sunday Night |
Snow Level 1500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Morning |
Snow Level ' |
| Saturday Afternoon - Sunday Morning |
Snow Level ' |
| Sunday Mid-day - Sunday Night |
Snow Level ' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning |
Snow Level 2000' |
| Saturday Afternoon - Sunday Morning |
Snow Level 3000' |
| Sunday Mid-day - Sunday Night |
Snow Level 4000' (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
| Monday | Monday | |
|---|---|---|
| Hurricane Ridge | 0 - 0.50 | 0 - 0.50 |
| Mt Baker Ski Area | 0 - 0.50 | 0 - 0.50 |
| Washington Pass | 0.25 - 0.50 | 0 - 0.50 |
| Stevens Pass | 0.75 - 1.00 | 0 - 1.00 |
| Snoqualmie Pass | 0 - 1.00 | 0 - 1.00 |
| Mission Ridge | 0.25 - 0.50 | 0 - 0.50 |
| Crystal Mt | 0 - 0.50 | 0 - 0.50 |
| Paradise | 0 - 0.75 | 0.75 - 1.00 |
| White Pass | 0.25 - 0.50 | 0.50 - 0.75 |
| Mt Hood Meadows | LT 0.10 | 0 - 0.50 |
| Timberline | LT 0.10 | 0 - 0.50 |
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: 7:09 AM PST Saturday, February 22, 2014
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Morning | NW 5 - 15 | --- - | W 5 - 15 | --- - | NW 10 - 20 |
| Saturday Afternoon | W 10 - 20 | --- - | W 10 - 20 | --- - | W 10 - 20 |
| Saturday Night | W 15 - 25 | --- - | W 15 - 25 | --- - | W 15 - 25 |
| Sunday | SW 5 - 15 | --- - | WSW 5 - 15 | --- - | WSW 5 - 15 |
| Sunday Night | SW 5 - 15 | --- - | ESE 15 - 30 | --- - | SW 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning | NW 5 - 15 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night | W 15 - 25 |
| Sunday | SW 5 - 15 |
| Sunday Night | SW 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday | --- - |
| Sunday Night | --- - |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night | W 15 - 25 |
| Sunday | WSW 5 - 15 |
| Sunday Night | ESE 15 - 30 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday | --- - |
| Sunday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night | W 15 - 25 |
| Sunday | WSW 5 - 15 |
| Sunday Night | SW 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Morning | NW 5 - 15 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night | W 15 - 25 |
| Sunday | SW 5 - 15 |
| Sunday Night | SW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday | --- - |
| Sunday Night | --- - |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night | W 15 - 25 |
| Sunday | WSW 5 - 15 |
| Sunday Night | ESE 15 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday | --- - |
| Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night | W 15 - 25 |
| Sunday | WSW 5 - 15 |
| Sunday Night | SW 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 | --- - | --- - | NW 35 - 45 | --- - | NW 30 - 40 |
| Saturday Night | --- - | --- - | WNW 25 - 40 | --- - | NW 25 - 35 |
| Sunday - Sunday Night | --- - | --- - | WNW 15 - 30 | --- - | W 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday | --- - |
| Saturday Night | --- - |
| Sunday - Sunday Night | --- - |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday | --- - |
| Saturday Night | --- - |
| Sunday - Sunday Night | --- - |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday | NW 35 - 45 |
| Saturday Night | WNW 25 - 40 |
| Sunday - Sunday Night | WNW 15 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday | --- - |
| Saturday Night | --- - |
| Sunday - Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday | NW 30 - 40 |
| Saturday Night | NW 25 - 35 |
| Sunday - Sunday Night | W 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.
Issued: 7:09 AM PST Saturday, February 22, 2014
Extended Weather Synopsis for Monday night through Monday
Snow showers should taper down on Monday as an upper ridge builds offshore around 130W. Moderate easterly flow should extend to crest level late Sunday night through Monday night with low snow levels especially near and east of the crest. Slight moderation should begin Tuesday as warmer air begins to work it's way over the area. The cold pool on the eastside of the Cascades should begin to erode Wednesday with further warming likely. A splitting weather system approaching the area from the west may spread some light precipitation into the area Wednesday. Most of the energy with this system should be directed into California.
Extended Weather
Olympics, Washington Cascades and Mt. Hood Area
Mostly cloudy with scattered light snow showers tapering down in the afternoon. Breezy east winds Cascade Passes.
Partly cloudy with breezy east winds Cascade Passes. Gradual warming Olympics.
Light rain or snow. Gradual warming.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Monday Morning | Snow Level | ' - ' | 1000' - 2000' | 3500' - 4500' | * |
| Monday Afternoon - Monday Night | Snow Level | ' - ' | 1500' - 2500' | 3500' - 4500' | * |
| Tuesday - Tuesday Night | Freezing Level | ' - ' | 2000' - 3000' | 3000' - 4000' | * |
| Wednesday | Snow Level | ' - ' | 3500' - 4500' | 5500' - 6500' | * |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning |
Snow Level ' - ' (Easterly Flow *) |
| Monday Afternoon - Monday Night |
Snow Level ' - ' (Easterly Flow *) |
| Tuesday - Tuesday Night |
Freezing Level ' - ' (Easterly Flow *) |
| Wednesday |
Snow Level ' - ' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 1000' - 2000' (Easterly Flow *) |
| Monday Afternoon - Monday Night |
Snow Level 1500' - 2500' (Easterly Flow *) |
| Tuesday - Tuesday Night |
Freezing Level 2000' - 3000' (Easterly Flow *) |
| Wednesday |
Snow Level 3500' - 4500' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning |
Snow Level 3500' - 4500' (Easterly Flow *) |
| Monday Afternoon - Monday Night |
Snow Level 3500' - 4500' (Easterly Flow *) |
| Tuesday - Tuesday Night |
Freezing Level 3000' - 4000' (Easterly Flow *) |
| Wednesday |
Snow Level 5500' - 6500' (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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Previous forecast from Feb 18, 2014
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