Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Thursday & Tuesday
The Gore-Tex weather should be coming to an end as the remnants of the atmospheric river in the form of a weakening N-S oriented frontal boundary push through the Cascades later this morning. The heftiest 24 hr water totals include 4.5 inches in the Mt. Baker area and around 3 inches at Crystal/Paradise. Areas of freezing rain this morning along the lower slopes of the Cascade Passes and along the east slopes of the Cascades should also come to an end after the front pushes through later this morning and westerly flow mixes out the barely freezing air in these locations. As the upper trough moves over the area a cooling trend will begin. Light to occasionally moderate post-frontal showers may become invigorated by a shortwave rotating up in SW flow later this afternoon.
Shower activity should wane overnight with partial clearing expected on Friday. Snow levels will rise slightly with daytime heating Friday afternoon. A longwave trough will dig along the West Coast Friday night, sending increasing clouds and showers into the area from the south overnight.
Weather Forecast
Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes
| Thursday Afternoon - Thursday Evening |
Light rain and snow showers becoming light to moderate later in the afternoon. Showers heaviest in the Mt. Baker area. Slow cooling trend. |
| Thursday Night - Friday Morning |
Mostly cloudy with scattered light rain and snow showers. |
| Friday Afternoon - Friday Evening |
Partly cloudy with isolated light rain and snow showers. |
| Friday Night |
Increasing clouds overnight with light rain and snow showers spreading up from the south. |
| Thursday Morning |
Light to moderate rain and snow, heaviest in the Mt. Baker area. Local light freezing rain lower slopes of the Cascade Passes. |
Olympics
| Thursday - Thursday Evening |
Light rain and snow showers becoming light to moderate later in the afternoon. Slow cooling trend. |
| Thursday Night - Friday Morning |
Mostly cloudy with scattered light rain and snow showers. |
| Friday Afternoon - Friday Evening |
Partly cloudy with isolated light rain and snow showers. |
| Friday Night |
Increasing clouds overnight with light rain and snow showers spreading up from the south. |
Mt. Hood Area
| Thursday - Thursday Evening |
Light to moderate rain and snow becoming light to moderate showers later this morning. Slow cooling trend. |
| Thursday Night - Friday Morning |
Mostly cloudy with scattered light rain and snow showers. |
| Friday Afternoon - Friday Evening |
Partly to mostly cloudy with isolated light rain and snow showers. |
| Friday Night |
Cloudy with light to occasionally moderate rain and snow showers. |
East slopes of the Washington Cascades
| Thursday Morning |
Light to occasionally moderate rain and snow. Local light freezing rain lower east slopes. Slight warming trend. |
| Thursday Afternoon - Thursday Evening |
Mostly cloudy with light to occasionally moderate rain and snow showers. Slow cooling trend. |
| Thursday Night - Friday Morning |
Mostly cloudy with scattered light rain and snow showers. |
| Friday Afternoon - Friday Evening |
Partly cloudy with isolated light rain and snow showers. |
| Friday Night |
Increasing clouds overnight with light rain and snow showers spreading up from the south. |
Issued: 7:08 AM PST Thursday, February 16, 2017
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Thursday Morning | Snow Level * | 5000' | 5000' | 5500' | ' | ' | 5500' | ' | 6000' |
| Thursday Afternoon | Snow Level | 4000' | 4000' | 4500' | ' | ' | 4000' | ' | 4500' |
| Thursday Night - Friday Morning | Snow Level | 3000' | 3000' | 3000' | ' | ' | 3000' | ' | 3500' |
| Friday Afternoon | Snow Level | 3500' | 3500' | 3500' | ' | ' | 3500' | ' | 4000' |
| Friday Night | Snow Level | 2500' | 2000' | 2500' | ' | ' | 2500' | ' | 3000' |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Morning |
Snow Level 5000' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 4000' |
| Thursday Night - Friday Morning |
Snow Level 3000' |
| Friday Afternoon |
Snow Level 3500' |
| Friday Night |
Snow Level 2500' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Morning |
Snow Level 5000' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 4000' |
| Thursday Night - Friday Morning |
Snow Level 3000' |
| Friday Afternoon |
Snow Level 3500' |
| Friday Night |
Snow Level 2000' |
| Washington Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 5500' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 4500' |
| Thursday Night - Friday Morning |
Snow Level 3000' |
| Friday Afternoon |
Snow Level 3500' |
| Friday Night |
Snow Level 2500' |
| Leavenworth | Elevation |
|---|---|
| Thursday Morning |
Snow Level ' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level ' |
| Thursday Night - Friday Morning |
Snow Level ' |
| Friday Afternoon |
Snow Level ' |
| Friday Night |
Snow Level ' |
| Stevens Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level ' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level ' |
| Thursday Night - Friday Morning |
Snow Level ' |
| Friday Afternoon |
Snow Level ' |
| Friday Night |
Snow Level ' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 5500' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 4000' |
| Thursday Night - Friday Morning |
Snow Level 3000' |
| Friday Afternoon |
Snow Level 3500' |
| Friday Night |
Snow Level 2500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Thursday Morning |
Snow Level ' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level ' |
| Thursday Night - Friday Morning |
Snow Level ' |
| Friday Afternoon |
Snow Level ' |
| Friday Night |
Snow Level ' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Morning |
Snow Level 6000' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 4500' |
| Thursday Night - Friday Morning |
Snow Level 3500' |
| Friday Afternoon |
Snow Level 4000' |
| Friday Night |
Snow Level 3000' |
* 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 0.25 | LT 0.10 |
| Mt Baker Ski Area | 1.00 - 1.50 | LT 0.25 |
| Washington Pass | 0.25 - 0.50 | LT 0.10 |
| Stevens Pass | 0 - 0.50 | LT 0.10 |
| Snoqualmie Pass | 0.50 - 0.75 | LT 0.10 |
| Mission Ridge | LT 0.25 | LT 0.10 |
| Crystal Mt | 0 - 0.50 | LT 0.10 |
| Paradise | 0 - 1.00 | LT 0.25 |
| White Pass | 0 - 0.50 | LT 0.10 |
| Mt Hood Meadows | 0 - 1.00 | LT 0.25 |
| Timberline | 0 - 1.00 | LT 0.25 |
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: 7:08 AM PST Thursday, February 16, 2017
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Thursday Morning | SW 20 - 30 | SSW 25 - 35 | SSE 15 - 30 | --- - | SW 10 - 20 |
| Thursday Mid-day | SW 15 - 25 | SW 15 - 25 | SW 15 - 25 | --- - | WSW 15 - 25 |
| Thursday Afternoon | WSW 15 - 25 | WSW 10 - 20 | WSW 10 - 20 | --- - | SW 20 - 30 |
| Thursday Night - Friday Morning | SW 10 - 20 | SW 5 - 15 | SW 10 - 20 | --- - | SW 5 - 15 |
| Friday Afternoon - Friday Night | E 0 - 10 | E 0 - 10 | E 5 - 15 | --- - | E 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Morning | SW 20 - 30 |
| Thursday Mid-day | SW 15 - 25 |
| Thursday Afternoon | WSW 15 - 25 |
| Thursday Night - Friday Morning | SW 10 - 20 |
| Friday Afternoon - Friday Night | E 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Thursday Morning | SSW 25 - 35 |
| Thursday Mid-day | SW 15 - 25 |
| Thursday Afternoon | WSW 10 - 20 |
| Thursday Night - Friday Morning | SW 5 - 15 |
| Friday Afternoon - Friday Night | E 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Thursday Morning | SSE 15 - 30 |
| Thursday Mid-day | SW 15 - 25 |
| Thursday Afternoon | WSW 10 - 20 |
| Thursday Night - Friday Morning | SW 10 - 20 |
| Friday Afternoon - Friday Night | E 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Thursday Morning | --- - |
| Thursday Mid-day | --- - |
| Thursday Afternoon | --- - |
| Thursday Night - Friday Morning | --- - |
| Friday Afternoon - Friday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Thursday Morning | SW 10 - 20 |
| Thursday Mid-day | WSW 15 - 25 |
| Thursday Afternoon | SW 20 - 30 |
| Thursday Night - Friday Morning | SW 5 - 15 |
| Friday Afternoon - Friday Night | E 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Thursday Morning | SW 20 - 30 |
| Thursday Mid-day | SW 15 - 25 |
| Thursday Afternoon | WSW 15 - 25 |
| Thursday Night - Friday Morning | SW 10 - 20 |
| Friday Afternoon - Friday Night | E 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Morning | SSW 25 - 35 |
| Thursday Mid-day | SW 15 - 25 |
| Thursday Afternoon | WSW 10 - 20 |
| Thursday Night - Friday Morning | SW 5 - 15 |
| Friday Afternoon - Friday Night | E 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Morning | SSE 15 - 30 |
| Thursday Mid-day | SW 15 - 25 |
| Thursday Afternoon | WSW 10 - 20 |
| Thursday Night - Friday Morning | SW 10 - 20 |
| Friday Afternoon - Friday Night | E 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Morning | --- - |
| Thursday Mid-day | --- - |
| Thursday Afternoon | --- - |
| Thursday Night - Friday Morning | --- - |
| Friday Afternoon - Friday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Morning | SW 10 - 20 |
| Thursday Mid-day | WSW 15 - 25 |
| Thursday Afternoon | SW 20 - 30 |
| Thursday Night - Friday Morning | SW 5 - 15 |
| Friday Afternoon - Friday 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 | |
|---|---|---|---|---|---|
| Thursday Morning | SW 35 - 45 | SW 25 - 35 | SW 30 - 40 | --- - | SW 35 - 45 |
| Thursday Afternoon | WSW 15 - 25 | WSW 20 - 30 | WSW 20 - 30 | --- - | WSW 35 - 45 |
| Thursday Night - Friday Morning | SW 10 - 20 | WSW 15 - 25 | WSW 20 - 30 | --- - | SW 20 - 30 |
| Friday Afternoon - Friday Night | S 5 - 15 | SE 5 - 15 | SE 10 - 20 | --- - | SE 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Morning | SW 35 - 45 |
| Thursday Afternoon | WSW 15 - 25 |
| Thursday Night - Friday Morning | SW 10 - 20 |
| Friday Afternoon - Friday Night | S 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Thursday Morning | SW 25 - 35 |
| Thursday Afternoon | WSW 20 - 30 |
| Thursday Night - Friday Morning | WSW 15 - 25 |
| Friday Afternoon - Friday Night | SE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Morning | SW 30 - 40 |
| Thursday Afternoon | WSW 20 - 30 |
| Thursday Night - Friday Morning | WSW 20 - 30 |
| Friday Afternoon - Friday Night | SE 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Morning | --- - |
| Thursday Afternoon | --- - |
| Thursday Night - Friday Morning | --- - |
| Friday Afternoon - Friday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Morning | SW 35 - 45 |
| Thursday Afternoon | WSW 35 - 45 |
| Thursday Night - Friday Morning | SW 20 - 30 |
| Friday Afternoon - Friday Night | SE 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 Feb 15, 2017
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