Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Friday & Wednesday
Orographic showers training from the SW will shift slightly to a more westerly flow later today. Cool snow levels will help to continue to squeeze decent amounts of snowfall out of what is otherwise light to occasionally moderate showers in this pattern. Showers should be heaviest in the south Cascades and Mt. Hood area today. Showers and cloud cover should quickly decrease further east of the Cascade crest.
A fast moving low pressure system will curl off of Vancouver Island Friday night. Warm frontal precipitation will quickly move over the area Friday night with a strong occluded front passing through the Cascades mid morning and lifting NE late morning. Moderate snow should quickly turn to scattered showers by late morning with broken skies. Snow levels will take a quick bump into the 3000-4000 ft range by late morning but should not rise further. Post-frontal westerlies will mix down stronger winds aloft in stronger gusts on Saturday.
Showers should taper off Saturday evening, but a stronger warm front with a deeper moisture tap will spread generally light precipitation over the area once again Saturday night. A slow warming trend will take place overnight, most pronounced in the Mt. Hood region.
Weather Forecast
Olympics
| Friday | Mostly cloudy with light snow showers. |
| Friday Night | Cloudy with scattered light snow showers in the evening becoming light to moderate snow after midnight. Increasing winds. |
| Saturday | Light to moderate snow becoming partly to mostly cloudy with scattered light rain and snow showers mid morning. Slight warming trend. Windy. |
| Saturday Night | Mostly cloudy with isolated light rain and snow showers becoming light rain and snow after midnight. Warming trend. |
Washington Cascades near and west of the Crest including Stevens, Snoqualmie and White Passes
| Friday | Cloudy with light to occasionally moderate snow showers, heaviest south Cascades in the afternoon. Moderate crest-level winds central and south Cascades. |
| Friday Night | Cloudy with scattered light snow showers in the evening becoming light snow after midnight except moderate Snoqualmie Pass and south. Increasing winds. |
| Saturday | Moderate snow becoming mostly cloudy with scattered light rain and snow showers mid-late morning, occasionally moderate Mt. Baker area in the afternoon. Slight warming trend late morning onward. Windy. |
| Saturday Night | Mostly cloudy with light rain and snow showers, except occasionally moderate Mt. Baker becoming light rain and snow after midnight. Slow warming trend. |
East Slopes of the Washington Cascades
| Friday | Cloudy with light snow showers near the crest, decreasing clouds and showers further east . Moderate crest-level winds central and south Cascades. |
| Friday Night | Mostly cloudy with isolated light snow showers in the evening becoming light snow after midnight. Increasing winds. |
| Saturday | Light to moderate snow, becoming mostly cloudy with scattered light rain and snow showers mid-day, occasionally moderate showers northeast Cascades. Windy. |
| Saturday Night | Mostly cloudy with isolated light rain and snow showers becoming light rain and snow after midnight. Slow warming trend. |
Mt. Hood
| Friday | Cloudy with light to occasionally moderate snow showers. Windy. |
| Friday Night | Cloudy with scattered light snow showers in the evening becoming light to moderate snow after midnight. Increasing winds. |
| Saturday | Moderate snow becoming mostly cloudy with scattered light rain and snow showers mid morning. Slight warming trend late morning onward. Very windy. |
| Saturday Night | Mostly cloudy with light rain and snow showers, becoming light to moderate rain and snow late evening. Warming trend. |
Issued: 7:43 AM PST Friday, January 26, 2018
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday Morning | Snow Level | 1500' | 1500' | 1000' | ' | ' | 1500' | ' | 1500' |
| Friday Afternoon | Snow Level | 1500' | 1500' | 1500' | ' | ' | 1500' | ' | 2500' |
| Friday Night | Snow Level * | 3000' | 1000' | 500' | ' | ' | 1500' | ' | 3000' |
| Saturday Morning | Snow Level | 4000' | 2000' | 1000' | ' | ' | 3500' | ' | 4000' |
| Saturday Afternoon | Snow Level | 3500' | 3000' | 3500' | ' | ' | 3000' | ' | 4500' |
| Saturday Night | Snow Level | 4500' | 2500' | 2000' | ' | ' | 2500' | ' | 6500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning |
Snow Level 1500' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Night |
Snow Level 3000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 4000' |
| Saturday Afternoon |
Snow Level 3500' |
| Saturday Night |
Snow Level 4500' |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning |
Snow Level 1500' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Night |
Snow Level 1000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 2000' |
| Saturday Afternoon |
Snow Level 3000' |
| Saturday Night |
Snow Level 2500' |
| Washington Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 1000' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Night |
Snow Level 500' (Easterly Flow *) |
| Saturday Morning |
Snow Level 1000' |
| Saturday Afternoon |
Snow Level 3500' |
| Saturday Night |
Snow Level 2000' |
| Leavenworth | Elevation |
|---|---|
| Friday Morning |
Snow Level ' |
| Friday Afternoon |
Snow Level ' |
| Friday Night |
Snow Level ' (Easterly Flow *) |
| Saturday Morning |
Snow Level ' |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night |
Snow Level ' |
| Stevens Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level ' |
| Friday Afternoon |
Snow Level ' |
| Friday Night |
Snow Level ' (Easterly Flow *) |
| Saturday Morning |
Snow Level ' |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night |
Snow Level ' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 1500' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Night |
Snow Level 1500' (Easterly Flow *) |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 3000' |
| Saturday Night |
Snow Level 2500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Morning |
Snow Level ' |
| Friday Afternoon |
Snow Level ' |
| Friday Night |
Snow Level ' (Easterly Flow *) |
| Saturday Morning |
Snow Level ' |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night |
Snow Level ' |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning |
Snow Level 1500' |
| Friday Afternoon |
Snow Level 2500' |
| Friday Night |
Snow Level 3000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 4000' |
| Saturday Afternoon |
Snow Level 4500' |
| Saturday Night |
Snow Level 6500' |
* 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 | 0 - 0.50 | LT 0.25 |
| Mt Baker Ski Area | 0 - 0.50 | 0 - 1.00 |
| Washington Pass | LT 0.25 | 0 - 0.75 |
| Stevens Pass | 0.50 - 0.75 | 0 - 0.50 |
| Snoqualmie Pass | 0.75 - 1.00 | 0.75 - 1.00 |
| Mission Ridge | LT 0.25 | LT 0.25 |
| Crystal Mt | 0.75 - 1.00 | 0 - 0.50 |
| Paradise | 1.00 - 1.50 | 0 - 1.00 |
| White Pass | 0.75 - 1.00 | 0 - 0.50 |
| Mt Hood Meadows | 0 - 1.00 | 0 - 1.50 |
| Timberline | 1.00 - 1.50 | 0 - 1.50 |
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: 7:43 AM PST Friday, January 26, 2018
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Morning | SW 10 - 20 | SW 10 - 20 | SW 15 - 30 | --- - | SW 20 - 30 |
| Friday Afternoon | SW 5 - 15 | SW 5 - 15 | SW 10 - 20 | --- - | SW 15 - 25 |
| Friday Night | SE 15 - 25 | SE 10 - 20 | ESE 15 - 25 | --- - | SW 20 - 30 |
| Saturday Morning | SW 25 - 35 | S 15 - 30 | SW 25 - 45 | --- - | WSW 35 - 50 |
| Saturday Afternoon | SW 15 - 25 | SW 15 - 30 | SW 25 - 35 | --- - | WSW 30 - 40 |
| Saturday Night | S 10 - 20 | SE 5 - 15 | SW 15 - 25 | --- - | SW 25 - 35 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning | SW 10 - 20 |
| Friday Afternoon | SW 5 - 15 |
| Friday Night | SE 15 - 25 |
| Saturday Morning | SW 25 - 35 |
| Saturday Afternoon | SW 15 - 25 |
| Saturday Night | S 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning | SW 10 - 20 |
| Friday Afternoon | SW 5 - 15 |
| Friday Night | SE 10 - 20 |
| Saturday Morning | S 15 - 30 |
| Saturday Afternoon | SW 15 - 30 |
| Saturday Night | SE 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning | SW 15 - 30 |
| Friday Afternoon | SW 10 - 20 |
| Friday Night | ESE 15 - 25 |
| Saturday Morning | SW 25 - 45 |
| Saturday Afternoon | SW 25 - 35 |
| Saturday Night | SW 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Morning | --- - |
| Friday Afternoon | --- - |
| Friday Night | --- - |
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning | SW 20 - 30 |
| Friday Afternoon | SW 15 - 25 |
| Friday Night | SW 20 - 30 |
| Saturday Morning | WSW 35 - 50 |
| Saturday Afternoon | WSW 30 - 40 |
| Saturday Night | SW 25 - 35 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Morning | SW 10 - 20 |
| Friday Afternoon | SW 5 - 15 |
| Friday Night | SE 15 - 25 |
| Saturday Morning | SW 25 - 35 |
| Saturday Afternoon | SW 15 - 25 |
| Saturday Night | S 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | SW 10 - 20 |
| Friday Afternoon | SW 5 - 15 |
| Friday Night | SE 10 - 20 |
| Saturday Morning | S 15 - 30 |
| Saturday Afternoon | SW 15 - 30 |
| Saturday Night | SE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | SW 15 - 30 |
| Friday Afternoon | SW 10 - 20 |
| Friday Night | ESE 15 - 25 |
| Saturday Morning | SW 25 - 45 |
| Saturday Afternoon | SW 25 - 35 |
| Saturday Night | SW 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | --- - |
| Friday Afternoon | --- - |
| Friday Night | --- - |
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | SW 20 - 30 |
| Friday Afternoon | SW 15 - 25 |
| Friday Night | SW 20 - 30 |
| Saturday Morning | WSW 35 - 50 |
| Saturday Afternoon | WSW 30 - 40 |
| Saturday Night | SW 25 - 35 |
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 Morning | SW 20 - 30 | SW 30 - 40 | SW 30 - 40 | --- - | SW 35 - 45 |
| Friday Afternoon | SW 15 - 25 | WSW 20 - 30 | SW 30 - 40 | --- - | SW 35 - 45 |
| Friday Night | SW 35 - 50 | SW 20 - 30 | SW 35 - 50 | --- - | SW 40 - 60 |
| Saturday Morning | SW 40 - 50 | SW 35 - 45 | SW 50 - 60 | --- - | WSW 60 - 70 |
| Saturday Afternoon | WSW 30 - 40 | W 40 - 50 | W 45 - 55 | --- - | W 60 - 70 |
| Saturday Night | W 25 - 35 | W 35 - 45 | W 45 - 55 | --- - | W 45 - 55 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | SW 20 - 30 |
| Friday Afternoon | SW 15 - 25 |
| Friday Night | SW 35 - 50 |
| Saturday Morning | SW 40 - 50 |
| Saturday Afternoon | WSW 30 - 40 |
| Saturday Night | W 25 - 35 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Morning | SW 30 - 40 |
| Friday Afternoon | WSW 20 - 30 |
| Friday Night | SW 20 - 30 |
| Saturday Morning | SW 35 - 45 |
| Saturday Afternoon | W 40 - 50 |
| Saturday Night | W 35 - 45 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | SW 30 - 40 |
| Friday Afternoon | SW 30 - 40 |
| Friday Night | SW 35 - 50 |
| Saturday Morning | SW 50 - 60 |
| Saturday Afternoon | W 45 - 55 |
| Saturday Night | W 45 - 55 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | --- - |
| Friday Afternoon | --- - |
| Friday Night | --- - |
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | SW 35 - 45 |
| Friday Afternoon | SW 35 - 45 |
| Friday Night | SW 40 - 60 |
| Saturday Morning | WSW 60 - 70 |
| Saturday Afternoon | W 60 - 70 |
| Saturday Night | W 45 - 55 |
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 25, 2018
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