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 & Thursday
After a mostly clear and cold start to the weekend, a weak frontal system over Vancouver Island should advance south and spread increasing clouds over the north and central Washington Cascades today. The south Washington Cascades and Mt. Hood area should stay mostly clear today. Temperatures should be a bit higher than Friday, especially in the south where more sunshine is expected. As the front passes into British Columbia today, light rain and snow should affect mostly the Olympics and north Cascades. There may be some light and isolated showers left over Saturday night for the west slopes.
An upper level ridge should build offshore on Sunday with mostly sunny skies over the area except for periods of high clouds passing over the region. Freezing levels should on Sunday afternoon should be fairly similar to Saturday.
Weather Forecast
Olympics and North Cascades
| Saturday - Saturday Evening |
Becoming cloudy with light rain and snow developing in the early afternoon. |
| Saturday Night |
Scattered light rain and snow showers. |
| Sunday - Sunday Night |
Mostly clear except for some high clouds. |
Central and South Washington Cascades
| Saturday - Saturday Evening |
Mostly sunny becoming partly to mostly cloudy in the central Cascades in the afternoon. |
| Saturday Night |
Partly cloudy with isolated light rain and snow showers for the west slopes. |
| Sunday - Sunday Night |
Mostly clear except for some high clouds. |
Mt. Hood Area
| Saturday |
Mostly sunny. |
| Saturday Night |
Mostly clear. |
| Sunday - Sunday Night |
Mostly clear except for some high clouds. |
Issued: 7:12 AM PDT Saturday, March 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 Afternoon | Snow Level | 3000' | ' | ' | ' | ' | 3500' | ' | 5000' |
| Saturday Morning | Snow Level | 2000' | ' | ' | ' | ' | 1500' | ' | 2500' |
| Saturday Night - Sunday Morning | Snow Level | 2500' | ' | ' | ' | ' | 2500' | ' | 4000' |
| Sunday Afternoon | Freezing Level | 5000' | ' | ' | ' | ' | 5000' | ' | 7000' |
| Sunday Night | Freezing Level * | 5500' | ' | ' | ' | ' | 5000' | ' | 7500' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Afternoon |
Snow Level 3000' |
| Saturday Morning |
Snow Level 2000' |
| Saturday Night - Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Freezing Level 5000' |
| Sunday Night |
Freezing Level 5500' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Saturday Afternoon |
Snow Level ' |
| Saturday Morning |
Snow Level ' |
| Saturday Night - Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Freezing Level ' |
| Sunday Night |
Freezing Level ' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Saturday Afternoon |
Snow Level ' |
| Saturday Morning |
Snow Level ' |
| Saturday Night - Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Freezing Level ' |
| Sunday Night |
Freezing Level ' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Saturday Afternoon |
Snow Level ' |
| Saturday Morning |
Snow Level ' |
| Saturday Night - Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Freezing Level ' |
| Sunday Night |
Freezing Level ' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Saturday Afternoon |
Snow Level ' |
| Saturday Morning |
Snow Level ' |
| Saturday Night - Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Freezing Level ' |
| Sunday Night |
Freezing Level ' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Afternoon |
Snow Level 3500' |
| Saturday Morning |
Snow Level 1500' |
| Saturday Night - Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Freezing Level 5000' |
| Sunday Night |
Freezing Level 5000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Afternoon |
Snow Level ' |
| Saturday Morning |
Snow Level ' |
| Saturday Night - Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Freezing Level ' |
| Sunday Night |
Freezing Level ' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Saturday Afternoon |
Snow Level 5000' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Night - Sunday Morning |
Snow Level 4000' |
| Sunday Afternoon |
Freezing Level 7000' |
| Sunday Night |
Freezing Level 7500' (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
| Thursday | Thursday | |
|---|---|---|
| Hurricane Ridge | LT 0.10 | LT 0.10 |
| Mt Baker Ski Area | LT 0.25 | LT 0.10 |
| Washington Pass | LT 0.25 | 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: 7:12 AM PDT Saturday, March 22, 2014
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Morning | SW 0 - 10 | --- - | W 0 - 10 | --- - | E 5 - 15 |
| Saturday Afternoon - Sunday Evening | NW 0 - 10 | --- - | NW 0 - 10 | --- - | NW 0 - 10 |
| Sunday Night | S 0 - 10 | --- - | S 0 - 10 | --- - | S 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning | SW 0 - 10 |
| Saturday Afternoon - Sunday Evening | NW 0 - 10 |
| Sunday Night | S 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon - Sunday Evening | --- - |
| Sunday Night | --- - |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning | W 0 - 10 |
| Saturday Afternoon - Sunday Evening | NW 0 - 10 |
| Sunday Night | S 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon - Sunday Evening | --- - |
| Sunday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning | E 5 - 15 |
| Saturday Afternoon - Sunday Evening | NW 0 - 10 |
| Sunday Night | S 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Morning | SW 0 - 10 |
| Saturday Afternoon - Sunday Evening | NW 0 - 10 |
| Sunday Night | S 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon - Sunday Evening | --- - |
| Sunday Night | --- - |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | W 0 - 10 |
| Saturday Afternoon - Sunday Evening | NW 0 - 10 |
| Sunday Night | S 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon - Sunday Evening | --- - |
| Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | E 5 - 15 |
| Saturday Afternoon - Sunday Evening | NW 0 - 10 |
| Sunday Night | S 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 15 - 25 | --- - | NW 5 - 15 |
| Saturday Afternoon - Sunday Afternoon | --- - | --- - | NW 25 - 35 | --- - | NW 15 - 25 |
| Sunday Night | --- - | --- - | W 15 - 25 | --- - | W 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon - Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon - Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | NW 15 - 25 |
| Saturday Afternoon - Sunday Afternoon | NW 25 - 35 |
| Sunday Night | W 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon - Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | NW 5 - 15 |
| Saturday Afternoon - Sunday Afternoon | NW 15 - 25 |
| Sunday Night | W 15 - 25 |
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: 7:12 AM PDT Saturday, March 22, 2014
Extended Weather Synopsis for Thursday night through Thursday
An upper level low should approach the Pacific Northwest on Monday and shift the upper level ridge into inland Washington. Easterly flow through the passes and perhaps to crest level should increase on Monday in response to the approaching low pressure system. Light warm frontal precipitation may brush the north Cascades but an otherwise dry day is expected with warmer temperatures away from the easterly flow.
The first frontal band to extend from the upper level low should pass through Monday night and bring light rain and snow at moderate freezing levels. A secondary wave rotating around the upper low should affect the area Tuesday afternoon or evening...bringing a more substantial shot of precipitation. A broad upper trough should position itself just offshore Tuesday night and Wednesday with falling snow snow levels and continued showers.
Extended Weather
Olympics, Washington Cascades and Mt. Hood area
Partly to mostly sunny with increasing easterly flow near the Cascades Passes. Warmer away from the passes along the west slopes.
Becoming cloudy with light rain and snow developing overnight and turning to light showers Tuesday morning.
Moderate rain and snow.
Mostly cloudy with light to occasionally moderate rain and snow showers. Cooling trend beginning Tuesday night.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Monday | Freezing Level | ' - ' | 5000' - 7000' | 7000' - 9000' | * |
| Monday Night - Tuesday | Snow Level | ' - ' | 4000' - 5000' | 4500' - 6000' | |
| Tuesday Night - Wednesday | Snow Level | ' - ' | 2500' - 3500' | 3000' - 4000' |
| Mt. Baker | Elevation |
|---|---|
| Monday |
Freezing Level ' - ' (Easterly Flow *) |
| Monday Night - Tuesday |
Snow Level ' - ' |
| Tuesday Night - Wednesday |
Snow Level ' - ' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday |
Freezing Level 5000' - 7000' (Easterly Flow *) |
| Monday Night - Tuesday |
Snow Level 4000' - 5000' |
| Tuesday Night - Wednesday |
Snow Level 2500' - 3500' |
| Mt. Hood | Elevation |
|---|---|
| Monday |
Freezing Level 7000' - 9000' (Easterly Flow *) |
| Monday Night - Tuesday |
Snow Level 4500' - 6000' |
| Tuesday Night - Wednesday |
Snow Level 3000' - 4000' |
* 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 Mar 18, 2014
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