Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Monday & Saturday
Broken skies this morning should become more solidly overcast this afternoon as mid and high level clouds stream over the area today in brisk westerly flow aloft. After a period of mild freezing/snow levels over the last several days, a significant cool down will begin tonight for the north Cascades and Olympics, eventually affecting the entire range as strong surface high pressure in northern B.C. begins to slide south pushing arctic air into eastern Washington and Oregon over the short term. Light snow may develop along a baroclinc band over the S WA/N OR border overnight, mainly affecting the south and central Washington Cascades and Mt. Hood. Alpine winds will decrease over the north Washington Cascades today but remain elevated over Mt. Hood as the jet slowly sinks south over the next 2 days. Offshore flow will increase Tuesday night with the potential for moderate east winds late Tuesday night into Wednesday.
Weather Forecast
Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes
| Monday |
Mostly cloudy this morning with increasing clouds this afternoon. Slight chance of very light rain or snow showers. |
| Monday Night |
Mostly cloudy north Cascades. Cloudy south and central Cascades with scattered light snow showers. Turning colder. |
| Tuesday |
Mostly sunny north Cascades. Partly sunny central and south Cascades with isolated light snow showers in the afternoon. Continued cooling trend. |
| Tuesday Night |
Mostly clear. Cold. |
Olympics
| Monday |
Mostly cloudy this morning with increasing clouds this afternoon. |
| Monday Night |
Mostly cloudy. Turning colder. |
| Tuesday |
Mostly sunny except partly cloudy north slopes of the Olympics. |
| Tuesday Night |
Partly cloudy with light upslope snow showers possible north slopes of the Olympics. |
East slopes of the Washington Cascades
| Monday |
Mostly cloudy this morning with increasing clouds this afternoon. Slight chance of very light rain or snow showers. |
| Monday Night |
Mostly cloudy northeast Cascades. Cloudy southeast and central-east Cascades with scattered light snow showers. Turning colder. |
| Tuesday |
Mostly sunny northeast Cascades. Partly to mostly cloudy central-east and southeast Cascades with scattered light snow showers. Continued cooling trend. |
| Tuesday Night |
Partly to mostly clear. Cold. |
Mt. Hood Area
| Monday |
Mostly cloudy this morning with increasing clouds this afternoon. Slight chance of very light rain or snow showers. Mild. |
| Monday Night |
Cloudy south and central Cascades with light snow showers. |
| Tuesday |
Mostly cloudy with scattered light snow showers. Cooling trend. |
| Tuesday Night |
Partly cloudy. Colder. |
Issued: 7:18 AM PST Monday, January 30, 2017
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Morning | Freezing Level | 3500' | 3000' | 2500' | ' | ' | 3000' | ' | 6500' |
| Monday Afternoon | Freezing Level | 3000' | 2500' | 2000' | ' | ' | 3500' | ' | 6500' |
| Monday Night - Tuesday Morning | Snow Level | 500' | 500' | 0' | ' | ' | 1000' | ' | 3000' |
| Tuesday Afternoon | Snow Level * | 500' | 0' | 0' | ' | ' | 500' | ' | 1500' |
| Tuesday Night | Freezing Level * | 0' | 0' | 0' | ' | ' | 0' | ' | 0' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning |
Freezing Level 3500' |
| Monday Afternoon |
Freezing Level 3000' |
| Monday Night - Tuesday Morning |
Snow Level 500' |
| Tuesday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 0' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning |
Freezing Level 3000' |
| Monday Afternoon |
Freezing Level 2500' |
| Monday Night - Tuesday Morning |
Snow Level 500' |
| Tuesday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 0' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level 2500' |
| Monday Afternoon |
Freezing Level 2000' |
| Monday Night - Tuesday Morning |
Snow Level 0' |
| Tuesday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 0' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Monday Morning |
Freezing Level ' |
| Monday Afternoon |
Freezing Level ' |
| Monday Night - Tuesday Morning |
Snow Level ' |
| Tuesday Afternoon |
Snow Level ' (Easterly Flow *) |
| Tuesday Night |
Freezing Level ' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level ' |
| Monday Afternoon |
Freezing Level ' |
| Monday Night - Tuesday Morning |
Snow Level ' |
| Tuesday Afternoon |
Snow Level ' (Easterly Flow *) |
| Tuesday Night |
Freezing Level ' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level 3000' |
| Monday Afternoon |
Freezing Level 3500' |
| Monday Night - Tuesday Morning |
Snow Level 1000' |
| Tuesday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 0' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Morning |
Freezing Level ' |
| Monday Afternoon |
Freezing Level ' |
| Monday Night - Tuesday Morning |
Snow Level ' |
| Tuesday Afternoon |
Snow Level ' (Easterly Flow *) |
| Tuesday Night |
Freezing Level ' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning |
Freezing Level 6500' |
| Monday Afternoon |
Freezing Level 6500' |
| Monday Night - Tuesday Morning |
Snow Level 3000' |
| Tuesday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 0' (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
| Saturday | Saturday | |
|---|---|---|
| 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 0.10 |
| 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: 7:18 AM PST Monday, January 30, 2017
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday | W 0 - 10 | W 0 - 10 | W 0 - 10 | --- - | W 0 - 10 |
| Monday Night - Tuesday Morning | N 0 - 10 | NE 5 - 15 | NW 0 - 10 | --- - | W 5 - 15 |
| Tuesday Afternoon | ENE 10 - 20 | NE 10 - 20 | E 5 - 15 | --- - | E 0 - 10 |
| Tuesday Night | ENE 15 - 25 | ENE 15 - 25 | E 10 - 20 | --- - | E 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday | W 0 - 10 |
| Monday Night - Tuesday Morning | N 0 - 10 |
| Tuesday Afternoon | ENE 10 - 20 |
| Tuesday Night | ENE 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Monday | W 0 - 10 |
| Monday Night - Tuesday Morning | NE 5 - 15 |
| Tuesday Afternoon | NE 10 - 20 |
| Tuesday Night | ENE 15 - 25 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday | W 0 - 10 |
| Monday Night - Tuesday Morning | NW 0 - 10 |
| Tuesday Afternoon | E 5 - 15 |
| Tuesday Night | E 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Monday | --- - |
| Monday Night - Tuesday Morning | --- - |
| Tuesday Afternoon | --- - |
| Tuesday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Monday | W 0 - 10 |
| Monday Night - Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | E 0 - 10 |
| Tuesday Night | E 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday | W 0 - 10 |
| Monday Night - Tuesday Morning | N 0 - 10 |
| Tuesday Afternoon | ENE 10 - 20 |
| Tuesday Night | ENE 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday | W 0 - 10 |
| Monday Night - Tuesday Morning | NE 5 - 15 |
| Tuesday Afternoon | NE 10 - 20 |
| Tuesday Night | ENE 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday | W 0 - 10 |
| Monday Night - Tuesday Morning | NW 0 - 10 |
| Tuesday Afternoon | E 5 - 15 |
| Tuesday Night | E 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday | --- - |
| Monday Night - Tuesday Morning | --- - |
| Tuesday Afternoon | --- - |
| Tuesday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday | W 0 - 10 |
| Monday Night - Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | E 0 - 10 |
| Tuesday Night | E 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 | |
|---|---|---|---|---|---|
| Monday Morning | WNW 30 - 40 | W 30 - 40 | W 30 - 40 | --- - | W 20 - 30 |
| Monday Afternoon | W 10 - 20 | W 10 - 20 | W 20 - 30 | --- - | W 35 - 45 |
| Monday Night - Tuesday Morning | W 0 - 10 | NW 0 - 10 | W 20 - 30 | --- - | W 35 - 50 |
| Tuesday Afternoon | NE 5 - 15 | NE 5 - 15 | W 5 - 15 | --- - | W 25 - 35 |
| Tuesday Night | NE 10 - 20 | NE 5 - 15 | SW 0 - 10 | --- - | SW 20 - 30 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | WNW 30 - 40 |
| Monday Afternoon | W 10 - 20 |
| Monday Night - Tuesday Morning | W 0 - 10 |
| Tuesday Afternoon | NE 5 - 15 |
| Tuesday Night | NE 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Morning | W 30 - 40 |
| Monday Afternoon | W 10 - 20 |
| Monday Night - Tuesday Morning | NW 0 - 10 |
| Tuesday Afternoon | NE 5 - 15 |
| Tuesday Night | NE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | W 30 - 40 |
| Monday Afternoon | W 20 - 30 |
| Monday Night - Tuesday Morning | W 20 - 30 |
| Tuesday Afternoon | W 5 - 15 |
| Tuesday Night | SW 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | --- - |
| Monday Afternoon | --- - |
| Monday Night - Tuesday Morning | --- - |
| Tuesday Afternoon | --- - |
| Tuesday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | W 20 - 30 |
| Monday Afternoon | W 35 - 45 |
| Monday Night - Tuesday Morning | W 35 - 50 |
| Tuesday Afternoon | W 25 - 35 |
| Tuesday Night | SW 20 - 30 |
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 Jan 27, 2017
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