Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Tuesday & Wednesday
Warm frontal moisture overriding an E-W oriented baroclinic zone near the WA/OR border will continue to produce light snow for the south and central Washington Cascades and Mt. Hood this morning. This boundary is expected to shift south today bringing steady light snow to an end. Light and scattered mountain showers currently affecting the mountain loop area and Stevens and Snoqualmie Passes should shift a bit south and continue through the afternoon with mostly clear conditions over the north Cascades.
A brief shot of arctic air will begin filtering into the region later today and tonight as strong high pressure currently situated over British Columbia slides south and into eastern Washington and Oregon over the next two days. While drier and sunnier conditions are expected on Wednesday outside of Mt. Hood and the far south Washington Cascades, easterly offshore flow will begin to really crank up Wednesday afternoon and night beginning a period of moderate easterly winds.
Weather Forecast
Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes
| Tuesday Morning |
Mostly clear north Cascades. Mostly cloudy with scattered light showers central Cascades. Light snow south Cascades. |
| Tuesday Afternoon |
Mostly sunny north Cascades. Partly to mostly cloudy central and south Washington Cascades with scattered light snow showers. |
| Tuesday Night |
Clear north Cascades. Partly to mostly clear central and south Cascades with isolated light snow showers ending in the evening. Cold. |
| Wednesday - Wednesday Night |
Mostly clear and north and central Cascades. Partly to mostly cloudy south Washington Cascades. East winds increasing Wednesday afternoon and night. |
Olympics
| Tuesday - Tuesday Evening |
Mostly clear except partly cloudy with scattered light showers along the north slopes this afternoon and evening. |
| Tuesday Night - Wednesday Night |
Mostly clear. |
East slopes of the Washington Cascades
| Tuesday Morning |
Mostly clear northeast Cascades. Light snow southeast and central-east Cascades. |
| Tuesday Afternoon |
Mostly sunny northeast Cascades. Partly cloudy central and south Washington Cascades with isolated light snow showers. |
| Tuesday Night |
Mostly clear and cold. |
| Wednesday - Wednesday Night |
Mostly clear and northeast and central-east Cascades. Partly to mostly cloudy southeast Washington Cascades. |
Mt. Hood Area
| Tuesday |
Cloudy with periods of light snow becoming mostly cloudy with scattered light snow showers in the afternoon. Cooling trend. Strong alpine winds this morning easing a bit in the afternoon. |
| Tuesday Night - Wednesday Morning |
Mostly cloudy. Colder. |
| Wednesday Afternoon - Wednesday Night |
Cloudy with periods of light snow. East winds increasing Wednesday afternoon and night. |
Issued: 7:14 AM PST Tuesday, January 31, 2017
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Tuesday Morning | Snow Level | 500' | 500' | 0' | ' | ' | 1000' | ' | 3000' |
| Tuesday Afternoon | Snow Level | 0' | 0' | 0' | ' | ' | 500' | ' | 2000' |
| Tuesday Night - Wednesday Night | Freezing Level * | 0' | 0' | 0' | ' | ' | 0' | ' | 0' |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Morning |
Snow Level 500' |
| Tuesday Afternoon |
Snow Level 0' |
| Tuesday Night - Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Morning |
Snow Level 500' |
| Tuesday Afternoon |
Snow Level 0' |
| Tuesday Night - Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Tuesday Morning |
Snow Level 0' |
| Tuesday Afternoon |
Snow Level 0' |
| Tuesday Night - Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Tuesday Morning |
Snow Level ' |
| Tuesday Afternoon |
Snow Level ' |
| Tuesday Night - Wednesday Night |
Freezing Level ' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Tuesday Morning |
Snow Level ' |
| Tuesday Afternoon |
Snow Level ' |
| Tuesday Night - Wednesday Night |
Freezing Level ' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Morning |
Snow Level 1000' |
| Tuesday Afternoon |
Snow Level 500' |
| Tuesday Night - Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Tuesday Morning |
Snow Level ' |
| Tuesday Afternoon |
Snow Level ' |
| Tuesday Night - Wednesday Night |
Freezing Level ' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Morning |
Snow Level 3000' |
| Tuesday Afternoon |
Snow Level 2000' |
| Tuesday Night - Wednesday 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
| Wednesday | Wednesday | |
|---|---|---|
| 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 0.25 | 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: 7:14 AM PST Tuesday, January 31, 2017
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Tuesday Morning | N 0 - 10 | NE 0 - 10 | W 0 - 10 | --- - | W 5 - 15 |
| Tuesday Afternoon | NE 10 - 20 | NE 10 - 20 | E 0 - 10 | --- - | VAR 0 - 10 |
| Tuesday Night - Wednesday Morning | NE 10 - 20 | NE 10 - 20 | E 5 - 15 | --- - | E 5 - 15 |
| Wednesday Afternoon - Wednesday Night | E 10 - 20 | ENE 10 - 20 | E 20 - 30 | --- - | E 15 - 25 |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Morning | N 0 - 10 |
| Tuesday Afternoon | NE 10 - 20 |
| Tuesday Night - Wednesday Morning | NE 10 - 20 |
| Wednesday Afternoon - Wednesday Night | E 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Morning | NE 0 - 10 |
| Tuesday Afternoon | NE 10 - 20 |
| Tuesday Night - Wednesday Morning | NE 10 - 20 |
| Wednesday Afternoon - Wednesday Night | ENE 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Morning | W 0 - 10 |
| Tuesday Afternoon | E 0 - 10 |
| Tuesday Night - Wednesday Morning | E 5 - 15 |
| Wednesday Afternoon - Wednesday Night | E 20 - 30 |
| Mt. Rainier | Elevation |
|---|---|
| Tuesday Morning | --- - |
| Tuesday Afternoon | --- - |
| Tuesday Night - Wednesday Morning | --- - |
| Wednesday Afternoon - Wednesday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | VAR 0 - 10 |
| Tuesday Night - Wednesday Morning | E 5 - 15 |
| Wednesday Afternoon - Wednesday Night | E 15 - 25 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Tuesday Morning | N 0 - 10 |
| Tuesday Afternoon | NE 10 - 20 |
| Tuesday Night - Wednesday Morning | NE 10 - 20 |
| Wednesday Afternoon - Wednesday Night | E 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Morning | NE 0 - 10 |
| Tuesday Afternoon | NE 10 - 20 |
| Tuesday Night - Wednesday Morning | NE 10 - 20 |
| Wednesday Afternoon - Wednesday Night | ENE 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Morning | W 0 - 10 |
| Tuesday Afternoon | E 0 - 10 |
| Tuesday Night - Wednesday Morning | E 5 - 15 |
| Wednesday Afternoon - Wednesday Night | E 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Morning | --- - |
| Tuesday Afternoon | --- - |
| Tuesday Night - Wednesday Morning | --- - |
| Wednesday Afternoon - Wednesday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | VAR 0 - 10 |
| Tuesday Night - Wednesday Morning | E 5 - 15 |
| Wednesday Afternoon - Wednesday Night | E 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Tuesday Morning | W 0 - 10 | W 0 - 10 | W 15 - 30 | --- - | W 40 - 50 |
| Tuesday Afternoon | NE 5 - 15 | N 5 - 15 | NW 0 - 10 | --- - | W 25 - 35 |
| Tuesday Night - Wednesday Morning | ENE 15 - 25 | NE 10 - 20 | E 0 - 10 | --- - | SW 20 - 30 |
| Wednesday Afternoon - Wednesday Night | E 15 - 25 | E 10 - 20 | E 10 - 20 | --- - | SW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Morning | W 0 - 10 |
| Tuesday Afternoon | NE 5 - 15 |
| Tuesday Night - Wednesday Morning | ENE 15 - 25 |
| Wednesday Afternoon - Wednesday Night | E 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Tuesday Morning | W 0 - 10 |
| Tuesday Afternoon | N 5 - 15 |
| Tuesday Night - Wednesday Morning | NE 10 - 20 |
| Wednesday Afternoon - Wednesday Night | E 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Morning | W 15 - 30 |
| Tuesday Afternoon | NW 0 - 10 |
| Tuesday Night - Wednesday Morning | E 0 - 10 |
| Wednesday Afternoon - Wednesday Night | E 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Morning | --- - |
| Tuesday Afternoon | --- - |
| Tuesday Night - Wednesday Morning | --- - |
| Wednesday Afternoon - Wednesday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Morning | W 40 - 50 |
| Tuesday Afternoon | W 25 - 35 |
| Tuesday Night - Wednesday Morning | SW 20 - 30 |
| Wednesday Afternoon - Wednesday Night | SW 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Jan 30, 2017
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