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 & Sunday
The storm track should continue to stay mainly focused on Oregon and northern California through the short term. A cold upper level low centered over Vancouver Island is part of an elongated E-W longwave trough extending into the northern US plains that continues to keep systems to the south. A developing weather system offshore has begun to spread light snow into Oregon this afternoon and should result in a moderate shot of snow from Mt. Hood and the south Washington Cascade with light amounts further north.
The upper low should eject eastward on Saturday...keeping light snow showers in the forecast again mainly for Mt. Hood north to the central WA Cascades. A another weak disturbance should traverse the area late Saturday night for more widespread snow showers.
Temperatures are expected to slowly moderate through the weekend as the arctic air mass over the area slowly modifies.
Weather Forecast
Olympics and north Washington Cascades
| Friday Afternoon |
Partly cloudy. |
| Friday Night - Saturday Morning |
Mostly cloudy. Light snow of flurries possible, mainly northeast Cascades. |
| Saturday Afternoon |
Partly cloudy. |
| Saturday Night |
Becoming cloudy with light snow showers overnight. |
Washington Cascades near and west of the crest including Stevens, Snoqualmie and White Passes
| Friday Afternoon - Saturday Morning |
Increasing clouds from the south with light to moderate snow developing Friday evening south Washington Cascades. Light snow spreading northward overnight. |
| Saturday Afternoon - Saturday Night |
Mostly cloudy with light snow showers. |
Mt. Hood Area
| Friday Afternoon - Saturday Morning |
Cloudy with light to moderate snow developing in the late afternoon or early evening. |
| Saturday Afternoon - Saturday Night |
Mostly cloudy with light snow showers. |
Issued: 2:53 PM PST Friday, February 7, 2014
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday - Saturday Mid-day | Snow Level * | 0' | ' | ' | ' | ' | 0' | ' | 0' |
| Saturday Afternoon - Saturday Night | Snow Level * | 500' | ' | ' | ' | ' | 500' | ' | 1500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday - Saturday Mid-day |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon - Saturday Night |
Snow Level 500' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Friday - Saturday Mid-day |
Snow Level ' (Easterly Flow *) |
| Saturday Afternoon - Saturday Night |
Snow Level ' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Friday - Saturday Mid-day |
Snow Level ' (Easterly Flow *) |
| Saturday Afternoon - Saturday Night |
Snow Level ' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Friday - Saturday Mid-day |
Snow Level ' (Easterly Flow *) |
| Saturday Afternoon - Saturday Night |
Snow Level ' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Friday - Saturday Mid-day |
Snow Level ' (Easterly Flow *) |
| Saturday Afternoon - Saturday Night |
Snow Level ' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday - Saturday Mid-day |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon - Saturday Night |
Snow Level 500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday - Saturday Mid-day |
Snow Level ' (Easterly Flow *) |
| Saturday Afternoon - Saturday Night |
Snow Level ' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Friday - Saturday Mid-day |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon - Saturday Night |
Snow Level 1500' (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 0.10 | 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 0.25 |
| Snoqualmie Pass | LT 0.10 | LT 0.25 |
| Mission Ridge | LT 0.10 | LT 0.25 |
| Crystal Mt | LT 0.10 | LT 0.25 |
| Paradise | LT 0.10 | LT 0.25 |
| White Pass | LT 0.25 | LT 0.25 |
| Mt Hood Meadows | 0 - 0.75 | 0 - 0.50 |
| Timberline | 0 - 0.75 | 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: 2:53 PM PST Friday, February 7, 2014
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Afternoon | VAR 0 - 10 | --- - | SSE 5 - 15 | --- - | SW 5 - 15 |
| Friday Night - Saturday Evening | E 0 - 10 | --- - | ESE 15 - 25 | --- - | SW 5 - 15 |
| Saturday Night - Saturday | S 5 - 15 | --- - | ESE 10 - 20 | --- - | SW 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Afternoon | VAR 0 - 10 |
| Friday Night - Saturday Evening | E 0 - 10 |
| Saturday Night - Saturday | S 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Friday Afternoon | --- - |
| Friday Night - Saturday Evening | --- - |
| Saturday Night - Saturday | --- - |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Afternoon | SSE 5 - 15 |
| Friday Night - Saturday Evening | ESE 15 - 25 |
| Saturday Night - Saturday | ESE 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Afternoon | --- - |
| Friday Night - Saturday Evening | --- - |
| Saturday Night - Saturday | --- - |
| Mt. Hood | Elevation |
|---|---|
| Friday Afternoon | SW 5 - 15 |
| Friday Night - Saturday Evening | SW 5 - 15 |
| Saturday Night - Saturday | SW 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Afternoon | VAR 0 - 10 |
| Friday Night - Saturday Evening | E 0 - 10 |
| Saturday Night - Saturday | S 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Afternoon | --- - |
| Friday Night - Saturday Evening | --- - |
| Saturday Night - Saturday | --- - |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Afternoon | SSE 5 - 15 |
| Friday Night - Saturday Evening | ESE 15 - 25 |
| Saturday Night - Saturday | ESE 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Afternoon | --- - |
| Friday Night - Saturday Evening | --- - |
| Saturday Night - Saturday | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Afternoon | SW 5 - 15 |
| Friday Night - Saturday Evening | SW 5 - 15 |
| Saturday Night - Saturday | SW 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Afternoon - Friday Evening | --- - | --- - | WSW 15 - 25 | --- - | WSW 20 - 30 |
| Friday Night - Saturday Mid-day | --- - | --- - | WSW 10 - 20 | --- - | W 40 - 50 |
| Saturday Afternoon - Saturday Night | --- - | --- - | W 20 - 30 | --- - | W 35 - 45 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Afternoon - Friday Evening | --- - |
| Friday Night - Saturday Mid-day | --- - |
| Saturday Afternoon - Saturday Night | --- - |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Afternoon - Friday Evening | --- - |
| Friday Night - Saturday Mid-day | --- - |
| Saturday Afternoon - Saturday Night | --- - |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Afternoon - Friday Evening | WSW 15 - 25 |
| Friday Night - Saturday Mid-day | WSW 10 - 20 |
| Saturday Afternoon - Saturday Night | W 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Afternoon - Friday Evening | --- - |
| Friday Night - Saturday Mid-day | --- - |
| Saturday Afternoon - Saturday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Afternoon - Friday Evening | WSW 20 - 30 |
| Friday Night - Saturday Mid-day | W 40 - 50 |
| Saturday Afternoon - Saturday Night | W 35 - 45 |
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: 2:53 PM PST Friday, February 7, 2014
Extended Weather Synopsis for Sunday night through Sunday
On Sunday, slightly better model agreement leans toward a weak system approaching from the west Saturday night and producing light rain and snow through Sunday as well.
Although the details are murky, a warm front should approach the area on Sunday night and Monday with further light to moderate rain and snow and with snow levels rising further. The weather pattern looks much more active next week with weather systems arriving in westerly flow every 24 to 48 hours at moderate snow levels. The first system in this more consolidated flow arriving Tuesday looks stronger than the ones seen late this week and over the weekend.
Extended Weather
Olympics, Washington Cascades including Stevens, Snoqualmie, and White Passes
Mostly cloudy with light to occasionally moderate snow showers. Slightly warmer.
Light to moderate rain and snow developing Olympics overnight and spreading inland Monday. Lighter precipitation east slopes. Gradual warming continues.
Moderate rain and snow with increasing winds. Lighter precipitation east slopes.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Sunday | Snow Level | ' - ' | 1500' - 2500' | 3000' - 4000' | * |
| Sunday Night | Snow Level | ' - ' | 2000' - 3000' | 3500' - 4500' | * |
| Monday | Snow Level | ' - ' | 3500' - 4500' | 4000' - 5000' | * |
| Monday Night - Tuesday | Snow Level | ' - ' | 2500' - 3500' | 3500' - 4500' | * |
| Mt. Baker | Elevation |
|---|---|
| Sunday |
Snow Level ' - ' (Easterly Flow *) |
| Sunday Night |
Snow Level ' - ' (Easterly Flow *) |
| Monday |
Snow Level ' - ' (Easterly Flow *) |
| Monday Night - Tuesday |
Snow Level ' - ' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday |
Snow Level 1500' - 2500' (Easterly Flow *) |
| Sunday Night |
Snow Level 2000' - 3000' (Easterly Flow *) |
| Monday |
Snow Level 3500' - 4500' (Easterly Flow *) |
| Monday Night - Tuesday |
Snow Level 2500' - 3500' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Sunday |
Snow Level 3000' - 4000' (Easterly Flow *) |
| Sunday Night |
Snow Level 3500' - 4500' (Easterly Flow *) |
| Monday |
Snow Level 4000' - 5000' (Easterly Flow *) |
| Monday Night - Tuesday |
Snow Level 3500' - 4500' (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 7, 2014
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