Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Monday & Friday
Snow levels will gradually fall overnight and settle between 3500 and 4000 feet on Monday. A quasi-stationary band of rain and snow will continue to focus rain and snow on the west slopes of the Cascades in W-NW flow. New snowfall accumulations expected above 4000 feet for Snoqualmie Pass to Mt. Baker.
NW flow will keep plenty of moisture and clouds banked up along the west slopes of the Cascades Monday and Monday night. The ridge will amplify offshore on Monday and begin to slide back towards the PNW Monday night, helping to decrease shower activity. W-NW winds will also become very light on Monday night.
On Tuesday, the ridge slides further east, further decreasing the already light shower activity. During the afternoon, a weak surface feature begins to spread light rain to the North Cascades with light precipitation increasing slightly Tuesday night in the Olympics and North Cascades.
Weather Forecast
Olympics
| Monday | Cloudy, chance of light rain or snow showers. |
| Monday Night | Cloudy, chance of a light rain or snow shower. |
| Tuesday | Cloudy, chance of light rain or snow. |
| Tuesday Night | Increasing light rain or snow before midnight; decreasing after midnight. |
Washington Cascades near and west of the Crest including Stevens, Snoqualmie and White Passes
| Monday | Light to moderate rain and snow from Snoqualmie pass north; heaviest in convergence. Elsewhere, mostly cloudy with a chance of light rain or snow showers. |
| Monday Night | Decreasing light rain and snow showers, with rain and snow showers focused on the central Cascades. |
| Tuesday | Light rain and snow, central and mainly north Cascades. Cloudy south Cascades. |
| Tuesday Night | Light to occasional moderate rain and snow central and north; heaviest near the Canadian border. |
East Slopes of the Washington Cascades
| Monday | Light rain and snow at higher elevations, heaviest central and north. Cloudy near the Cascade crest with mostly sunny skies east of the Cascade crest. |
| Monday Night | Decreasing Light rain and snow, heaviest central and north. Cloudy near the Cascade crest with mostly clear skies east of the Cascade crest. |
| Tuesday | A few showers lingering in the morning at high elevations, north and central parts. Increasing light rain and snow in the north at high elevations in the afternoon. Cloudy near the Cascade crest with mostly clear skies east of the Cascade crest. |
| Tuesday Night | Very light rain and snow at high elevations, north and central parts. |
Mt. Hood
| Monday | Cloudy with a chance of a rain or snow shower. |
| Monday Night | Cloudy with a chance of a rain or snow shower. |
| Tuesday | Mostly cloudy. |
| Tuesday Night | Mostly cloudy. |
Issued: 7:18 AM PST Monday, February 5, 2018
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Morning | Snow Level | 4000' | 3500' | 4000' | ' | ' | 3500' | ' | 4000' |
| Monday Afternoon | Snow Level | 4000' | 3500' | 4000' | ' | ' | 3500' | ' | 4000' |
| Monday Night | Snow Level | 4000' | 3500' | 2500' | ' | ' | 3000' | ' | 3500' |
| Tuesday Morning | Snow Level | 5000' | 3500' | 4000' | ' | ' | 3000' | ' | 4000' |
| Tuesday Afternoon | Snow Level | 5000' | 3500' | 4000' | ' | ' | 3500' | ' | 7500' |
| Tuesday Night | Snow Level | 6000' | 4500' | 4000' | ' | ' | 4500' | ' | 7000' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning |
Snow Level 4000' |
| Monday Afternoon |
Snow Level 4000' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 5000' |
| Tuesday Afternoon |
Snow Level 5000' |
| Tuesday Night |
Snow Level 6000' |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning |
Snow Level 3500' |
| Monday Afternoon |
Snow Level 3500' |
| Monday Night |
Snow Level 3500' |
| Tuesday Morning |
Snow Level 3500' |
| Tuesday Afternoon |
Snow Level 3500' |
| Tuesday Night |
Snow Level 4500' |
| Washington Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 4000' |
| Monday Afternoon |
Snow Level 4000' |
| Monday Night |
Snow Level 2500' |
| Tuesday Morning |
Snow Level 4000' |
| Tuesday Afternoon |
Snow Level 4000' |
| Tuesday Night |
Snow Level 4000' |
| Leavenworth | Elevation |
|---|---|
| Monday Morning |
Snow Level ' |
| Monday Afternoon |
Snow Level ' |
| Monday Night |
Snow Level ' |
| Tuesday Morning |
Snow Level ' |
| Tuesday Afternoon |
Snow Level ' |
| Tuesday Night |
Snow Level ' |
| Stevens Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level ' |
| Monday Afternoon |
Snow Level ' |
| Monday Night |
Snow Level ' |
| Tuesday Morning |
Snow Level ' |
| Tuesday Afternoon |
Snow Level ' |
| Tuesday Night |
Snow Level ' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 3500' |
| Monday Afternoon |
Snow Level 3500' |
| Monday Night |
Snow Level 3000' |
| Tuesday Morning |
Snow Level 3000' |
| Tuesday Afternoon |
Snow Level 3500' |
| Tuesday Night |
Snow Level 4500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Morning |
Snow Level ' |
| Monday Afternoon |
Snow Level ' |
| Monday Night |
Snow Level ' |
| Tuesday Morning |
Snow Level ' |
| Tuesday Afternoon |
Snow Level ' |
| Tuesday Night |
Snow Level ' |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning |
Snow Level 4000' |
| Monday Afternoon |
Snow Level 4000' |
| Monday Night |
Snow Level 3500' |
| Tuesday Morning |
Snow Level 4000' |
| Tuesday Afternoon |
Snow Level 7500' |
| Tuesday Night |
Snow Level 7000' |
* 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
| Friday | Friday | |
|---|---|---|
| Hurricane Ridge | LT 0.10 | LT 0.25 |
| Mt Baker Ski Area | 0.25 - 0.50 | 0.25 - 0.50 |
| Washington Pass | LT 0.25 | LT 0.25 |
| Stevens Pass | 0 - 0.75 | LT 0.25 |
| Snoqualmie Pass | 0 - 1.00 | LT 0.25 |
| 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 0.25 | 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, February 5, 2018
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | W 15 - 25 | SW 10 - 20 | W 15 - 25 | --- - | W 20 - 30 |
| Monday Afternoon | W 20 - 30 | W 5 - 15 | W 10 - 20 | --- - | W 20 - 30 |
| Monday Night | W 10 - 20 | W 5 - 15 | W 10 - 20 | --- - | W 20 - 30 |
| Tuesday Morning | W 5 - 15 | WSW 5 - 15 | W 5 - 15 | --- - | WNW 5 - 15 |
| Tuesday Afternoon | WNW 15 - 25 | WSW 5 - 15 | W 10 - 20 | --- - | W 10 - 20 |
| Tuesday Night | W 15 - 25 | WSW 10 - 20 | W 10 - 20 | --- - | W 15 - 25 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning | W 15 - 25 |
| Monday Afternoon | W 20 - 30 |
| Monday Night | W 10 - 20 |
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | WNW 15 - 25 |
| Tuesday Night | W 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning | SW 10 - 20 |
| Monday Afternoon | W 5 - 15 |
| Monday Night | W 5 - 15 |
| Tuesday Morning | WSW 5 - 15 |
| Tuesday Afternoon | WSW 5 - 15 |
| Tuesday Night | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning | W 15 - 25 |
| Monday Afternoon | W 10 - 20 |
| Monday Night | W 10 - 20 |
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | W 10 - 20 |
| Tuesday Night | W 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Morning | --- - |
| Monday Afternoon | --- - |
| Monday Night | --- - |
| Tuesday Morning | --- - |
| Tuesday Afternoon | --- - |
| Tuesday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning | W 20 - 30 |
| Monday Afternoon | W 20 - 30 |
| Monday Night | W 20 - 30 |
| Tuesday Morning | WNW 5 - 15 |
| Tuesday Afternoon | W 10 - 20 |
| Tuesday Night | W 15 - 25 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Morning | W 15 - 25 |
| Monday Afternoon | W 20 - 30 |
| Monday Night | W 10 - 20 |
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | WNW 15 - 25 |
| Tuesday Night | W 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | SW 10 - 20 |
| Monday Afternoon | W 5 - 15 |
| Monday Night | W 5 - 15 |
| Tuesday Morning | WSW 5 - 15 |
| Tuesday Afternoon | WSW 5 - 15 |
| Tuesday Night | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | W 15 - 25 |
| Monday Afternoon | W 10 - 20 |
| Monday Night | W 10 - 20 |
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | W 10 - 20 |
| Tuesday Night | W 10 - 20 |
| 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 20 - 30 |
| Monday Night | W 20 - 30 |
| Tuesday Morning | WNW 5 - 15 |
| Tuesday Afternoon | W 10 - 20 |
| Tuesday 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | W 20 - 30 | W 25 - 35 | WNW 35 - 50 | --- - | WNW 45 - 65 |
| Monday Afternoon | W 15 - 25 | W 20 - 30 | WNW 30 - 40 | --- - | WNW 45 - 65 |
| Monday Night | W 10 - 20 | W 20 - 30 | WNW 35 - 50 | --- - | NW 35 - 50 |
| Tuesday Morning | WNW 20 - 30 | WNW 15 - 25 | WNW 40 - 60 | --- - | NW 25 - 35 |
| Tuesday Afternoon | W 25 - 35 | W 30 - 40 | WNW 40 - 60 | --- - | WNW 30 - 40 |
| Tuesday Night | WNW 30 - 40 | WNW 35 - 50 | WNW 40 - 60 | --- - | NW 40 - 60 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | W 20 - 30 |
| Monday Afternoon | W 15 - 25 |
| Monday Night | W 10 - 20 |
| Tuesday Morning | WNW 20 - 30 |
| Tuesday Afternoon | W 25 - 35 |
| Tuesday Night | WNW 30 - 40 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Morning | W 25 - 35 |
| Monday Afternoon | W 20 - 30 |
| Monday Night | W 20 - 30 |
| Tuesday Morning | WNW 15 - 25 |
| Tuesday Afternoon | W 30 - 40 |
| Tuesday Night | WNW 35 - 50 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | WNW 35 - 50 |
| Monday Afternoon | WNW 30 - 40 |
| Monday Night | WNW 35 - 50 |
| Tuesday Morning | WNW 40 - 60 |
| Tuesday Afternoon | WNW 40 - 60 |
| Tuesday Night | WNW 40 - 60 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | --- - |
| Monday Afternoon | --- - |
| Monday Night | --- - |
| Tuesday Morning | --- - |
| Tuesday Afternoon | --- - |
| Tuesday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | WNW 45 - 65 |
| Monday Afternoon | WNW 45 - 65 |
| Monday Night | NW 35 - 50 |
| Tuesday Morning | NW 25 - 35 |
| Tuesday Afternoon | WNW 30 - 40 |
| Tuesday Night | NW 40 - 60 |
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 Feb 4, 2018
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