Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Wednesday & Tuesday
A weak front offshore will continue to weaken as it runs into upper level ridging centered over the coast. Light showers in northerly flow aloft should mainly affect the west slopes of the Cascades, Olympics and Mt. Hood today. Skies will remain mostly cloudy with a few holes poking out of the clouds in the north Cascades and along the east slopes.
The upper level ridge should rebuild over the area on Thursday but moisture should remain trapped against the west slopes on Thursday again making for a mostly cloudy day with perhaps some afternoon sunbreaks. Overall snow/freezing levels should remain fairly steady with a slight warming trend expected over the next two days.
Weather Forecast
Olympics, Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes
| Wednesday - Wednesday Night |
Cloudy with a chance of light rain and snow showers mainly for the central and south Cascades. |
| Thursday |
Mostly cloudy with sunbreaks in the afternoon. |
| Thursday Night |
Partly to mostly cloudy. |
East slopes of the Washington Cascades
| Wednesday - Wednesday Night |
Cloudy with a chance of light rain and snow showers near the crest. Mostly cloudy further east of the crest. |
| Thursday |
Mostly cloudy in the morning becoming partly to mostly sunny. Areas of low clouds lower slopes. |
| Thursday Night |
Mostly clear except areas of low clouds lower slopes. |
Mt. Hood Area
| Wednesday - Wednesday Night |
Cloudy with a chance of light rain and snow showers. |
| Thursday |
Mostly cloudy with sunbreaks in the afternoon. |
| Thursday Night |
Partly cloudy. |
Issued: 2:14 PM PST Wednesday, January 25, 2017
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Wednesday - Wednesday Night | Snow Level | 2500' | 1500' | 1500' | ' | ' | 2000' | ' | 2500' |
| Thursday - Thursday Night | Freezing Level | 4000' | 3500' | 3000' | ' | ' | 3500' | ' | 4000' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday - Wednesday Night |
Snow Level 2500' |
| Thursday - Thursday Night |
Freezing Level 4000' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday - Wednesday Night |
Snow Level 1500' |
| Thursday - Thursday Night |
Freezing Level 3500' |
| Washington Pass | Elevation |
|---|---|
| Wednesday - Wednesday Night |
Snow Level 1500' |
| Thursday - Thursday Night |
Freezing Level 3000' |
| Leavenworth | Elevation |
|---|---|
| Wednesday - Wednesday Night |
Snow Level ' |
| Thursday - Thursday Night |
Freezing Level ' |
| Stevens Pass | Elevation |
|---|---|
| Wednesday - Wednesday Night |
Snow Level ' |
| Thursday - Thursday Night |
Freezing Level ' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday - Wednesday Night |
Snow Level 2000' |
| Thursday - Thursday Night |
Freezing Level 3500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday - Wednesday Night |
Snow Level ' |
| Thursday - Thursday Night |
Freezing Level ' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday - Wednesday Night |
Snow Level 2500' |
| Thursday - Thursday Night |
Freezing Level 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.
Precipitation Forecast
| Tuesday | Tuesday | |
|---|---|---|
| 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 0.25 | 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: 2:14 PM PST Wednesday, January 25, 2017
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday - Wednesday Night | W 0 - 10 | VAR 0 - 10 | W 0 - 10 | --- - | W 5 - 15 |
| Thursday - Thursday Night | SW 0 - 10 | SW 0 - 10 | W 0 - 10 | --- - | W 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday - Wednesday Night | W 0 - 10 |
| Thursday - Thursday Night | SW 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday - Wednesday Night | VAR 0 - 10 |
| Thursday - Thursday Night | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday - Wednesday Night | W 0 - 10 |
| Thursday - Thursday Night | W 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday - Wednesday Night | --- - |
| Thursday - Thursday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Wednesday - Wednesday Night | W 5 - 15 |
| Thursday - Thursday Night | W 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday - Wednesday Night | W 0 - 10 |
| Thursday - Thursday Night | SW 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday - Wednesday Night | VAR 0 - 10 |
| Thursday - Thursday Night | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday - Wednesday Night | W 0 - 10 |
| Thursday - Thursday Night | W 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday - Wednesday Night | --- - |
| Thursday - Thursday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday - Wednesday Night | W 5 - 15 |
| Thursday - Thursday Night | W 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 | |
|---|---|---|---|---|---|
| Wednesday - Wednesday Night | NW 5 - 15 | NNW 10 - 20 | NW 15 - 25 | --- - | NW 10 - 20 |
| Thursday | W 10 - 20 | W 5 - 15 | NW 5 - 15 | --- - | N 0 - 10 |
| Thursday Night | W 10 - 20 | W 10 - 20 | W 15 - 25 | --- - | W 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday - Wednesday Night | NW 5 - 15 |
| Thursday | W 10 - 20 |
| Thursday Night | W 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday - Wednesday Night | NNW 10 - 20 |
| Thursday | W 5 - 15 |
| Thursday Night | W 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday - Wednesday Night | NW 15 - 25 |
| Thursday | NW 5 - 15 |
| Thursday Night | W 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday - Wednesday Night | --- - |
| Thursday | --- - |
| Thursday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday - Wednesday Night | NW 10 - 20 |
| Thursday | N 0 - 10 |
| Thursday Night | W 10 - 20 |
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: 2:14 PM PST Wednesday, January 25, 2017
Extended Weather Synopsis for Tuesday night through Tuesday
A warm front passing north into Vancouver Island on Friday should keep high clouds draped over the north Cascades and Olympics with increasing sunshine for the south Washington Cascades and Mt. Hood. Freezing levels will continue their slow climb through the extended period, likely peaking on Saturday. Cool east flow through the Passes should create local inversions on Friday and Saturday. A Pacific frontal system should shift the ridge axis to our east with warm frontal moisture moving into the Olympics and north Cascades by Sunday afternoon. Alpine winds ahead of the front should begin to increase as early as Saturday afternoon or night.
Extended Weather
Olympics, Washington Cascades and Mt. Hood
Mostly cloudy north Cascades and Olympics. Partly to mostly sunny south Washington Cascades and Mt. Hood. Slow warming trend.
Partly to mostly clear. Warmer except locally cooler Cascade Passes.
Increasing clouds north Cascades and Olympics, otherwise mostly clear.
Mostly cloudy with light to moderate rain and snow developing Olympics and north Cascades.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Friday - Friday Night | Freezing Level | 4000' - 5000' | 4500' - 5500' | 4500' - 5500' | * |
| Saturday - Saturday Night | Freezing Level | 6500' - 7500' | 7000' - 8500' | 7500' - 8500' | * |
| Sunday | Snow Level | 3000' - 4000' | 4000' - 5000' | 4500' - 5500' | * |
| Mt. Baker | Elevation |
|---|---|
| Friday - Friday Night |
Freezing Level 4000' - 5000' (Easterly Flow *) |
| Saturday - Saturday Night |
Freezing Level 6500' - 7500' (Easterly Flow *) |
| Sunday |
Snow Level 3000' - 4000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday - Friday Night |
Freezing Level 4500' - 5500' (Easterly Flow *) |
| Saturday - Saturday Night |
Freezing Level 7000' - 8500' (Easterly Flow *) |
| Sunday |
Snow Level 4000' - 5000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Friday - Friday Night |
Freezing Level 4500' - 5500' (Easterly Flow *) |
| Saturday - Saturday Night |
Freezing Level 7500' - 8500' (Easterly Flow *) |
| Sunday |
Snow Level 4500' - 5500' (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 Jan 25, 2017
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