Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Saturday & Sunday
Shortwave ridging will move over the Pacific Northwest through mid-day producing a period of fair weather. A fast moving low pressure system moving south in northerly flow aloft will drop over the area Saturday night. Clouds will increase during the day on Saturday, with high clouds increasing for all areas in the afternoon and low level clouds mainly increasing for the Olympics and north and central west slopes of the Cascades.
Light snow showers will develop out ahead of low this evening and increase in intensity overnight, especially for the west slopes of the Cascades. As the low pressure system dips south off the Washington Coast on Sunday, showers will continue but some drying and partial clearing is expected over the north Cascades. Snow levels will stay relatively low throughout the short term. A weak front originating from the low will wash out over the Cascades Sunday afternoon. Cool NW flow will continue over the area Sunday night with shower activity becoming more scattered overnight.
Weather Forecast
Olympics
| Saturday |
Partly cloudy with increasing clouds in the afternoon. Light snow showers developing in the afternoon. |
| Saturday Night - Sunday Morning |
Light to occasionally moderate snow showers. |
| Sunday Afternoon |
Mostly cloudy with light snow showers becoming light to occasionally moderate in the afternoon along the north slopes of the Olympics. |
| Sunday Night |
Mostly cloudy with scattered snow showers. |
Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes
| Saturday |
Partly to mostly cloudy with increasing clouds in the afternoon, especially north and central Cascades. Light snow showers developing north Cascades in the afternoon. |
| Saturday Night - Sunday Morning |
Light to occasionally moderate snow showers. |
| Sunday Afternoon |
Mostly cloudy with light snow showers except partial clearing north Cascades. |
| Sunday Night |
Partly cloudy north Cascades. Mostly cloudy with scattered snow showers central and south Cascades. |
East slopes of the Washington Cascades
| Saturday |
Mostly sunny with increasing high clouds in the afternoon, especially northeast and central-east Cascades. Very light snow showers developing northeast Cascades in the afternoon. |
| Saturday Night - Sunday Morning |
Cloudy with light snow showers. |
| Sunday Afternoon |
Mostly cloudy with light snow showers except partial clearing northeast Cascades. |
| Sunday Night |
Partly cloudy northeast Cascades. Mostly cloudy with isolated snow showers central-east and southeast Cascades mainly near the Cascade crest. |
Mt. Hood Area
| Saturday |
Mostly clear in the morning becoming mostly cloudy with increasing high clouds in the afternoon |
| Saturday Night |
Light snow showers developing in the evening. |
| Sunday |
Light to occasionally moderate snow showers. |
| Sunday Night |
Mostly cloudy with light snow showers. |
Issued: 9:04 AM PST Saturday, February 25, 2017
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Saturday Morning | Freezing Level | 1500' | 500' | 0' | ' | ' | 1000' | ' | 2000' |
| Saturday Afternoon | Snow Level | 1500' | 1000' | 1000' | ' | ' | 1000' | ' | 1500' |
| Saturday Night - Sunday Morning | Snow Level | 1500' | 500' | 0' | ' | ' | 500' | ' | 1000' |
| Sunday Afternoon | Snow Level * | 1500' | 1500' | 1500' | ' | ' | 1500' | ' | 2000' |
| Sunday Night | Snow Level * | 0' | 0' | 0' | ' | ' | 500' | ' | 500' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 1500' |
| Saturday Afternoon |
Snow Level 1500' |
| Saturday Night - Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Sunday Night |
Snow Level 0' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 500' |
| Saturday Afternoon |
Snow Level 1000' |
| Saturday Night - Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Sunday Night |
Snow Level 0' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 0' |
| Saturday Afternoon |
Snow Level 1000' |
| Saturday Night - Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Sunday Night |
Snow Level 0' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Saturday Morning |
Freezing Level ' |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night - Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' (Easterly Flow *) |
| Sunday Night |
Snow Level ' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Saturday Morning |
Freezing Level ' |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night - Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' (Easterly Flow *) |
| Sunday Night |
Snow Level ' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 1000' |
| Saturday Afternoon |
Snow Level 1000' |
| Saturday Night - Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Sunday Night |
Snow Level 500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Morning |
Freezing Level ' |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night - Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' (Easterly Flow *) |
| Sunday Night |
Snow Level ' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 2000' |
| Saturday Afternoon |
Snow Level 1500' |
| Saturday Night - Sunday Morning |
Snow Level 1000' |
| Sunday Afternoon |
Snow Level 2000' (Easterly Flow *) |
| Sunday Night |
Snow Level 500' (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
| Sunday | Sunday | |
|---|---|---|
| Hurricane Ridge | LT 0.25 | 0.25 - 0.50 |
| Mt Baker Ski Area | 0.25 - 0.50 | LT 0.25 |
| Washington Pass | LT 0.10 | LT 0.10 |
| Stevens Pass | 0.25 - 0.50 | 0 - 0.50 |
| Snoqualmie Pass | 0 - 0.50 | 0 - 0.50 |
| Mission Ridge | LT 0.10 | LT 0.25 |
| Crystal Mt | LT 0.25 | 0.50 - 0.75 |
| Paradise | 0.25 - 0.50 | 0 - 0.75 |
| White Pass | LT 0.25 | 0 - 0.50 |
| Mt Hood Meadows | LT 0.10 | 0.50 - 0.75 |
| Timberline | LT 0.10 | 0 - 0.75 |
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: 9:04 AM PST Saturday, February 25, 2017
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Morning | W 0 - 10 | WNW 0 - 10 | W 0 - 10 | --- - | VAR 0 - 10 |
| Saturday Afternoon | W 10 - 20 | SW 10 - 20 | W 10 - 20 | --- - | W 10 - 20 |
| Saturday Night - Sunday Morning | SW 10 - 20 | SW 10 - 20 | WSW 15 - 25 | --- - | WSW 15 - 30 |
| Sunday Afternoon | ENE 5 - 15 | ENE 5 - 15 | E 5 - 15 | --- - | WSW 5 - 15 |
| Sunday Night | NW 0 - 10 | VAR 0 - 10 | W 0 - 10 | --- - | W 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning | W 0 - 10 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night - Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | ENE 5 - 15 |
| Sunday Night | NW 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning | WNW 0 - 10 |
| Saturday Afternoon | SW 10 - 20 |
| Saturday Night - Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | ENE 5 - 15 |
| Sunday Night | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning | W 0 - 10 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night - Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | E 5 - 15 |
| Sunday Night | W 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night - Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night - Sunday Morning | WSW 15 - 30 |
| Sunday Afternoon | WSW 5 - 15 |
| Sunday Night | W 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Morning | W 0 - 10 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night - Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | ENE 5 - 15 |
| Sunday Night | NW 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | WNW 0 - 10 |
| Saturday Afternoon | SW 10 - 20 |
| Saturday Night - Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | ENE 5 - 15 |
| Sunday Night | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | W 0 - 10 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night - Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | E 5 - 15 |
| Sunday Night | W 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night - Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night - Sunday Morning | WSW 15 - 30 |
| Sunday Afternoon | WSW 5 - 15 |
| Sunday 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 | |
|---|---|---|---|---|---|
| Saturday Morning | NW 5 - 15 | NW 10 - 20 | NW 10 - 20 | --- - | WNW 5 - 15 |
| Saturday Afternoon - Saturday Evening | W 20 - 30 | W 15 - 25 | WNW 25 - 35 | --- - | WNW 15 - 25 |
| Saturday Night - Sunday Morning | W 0 - 10 | W 0 - 10 | WSW 15 - 25 | --- - | W 25 - 35 |
| Sunday Afternoon | E 5 - 15 | E 0 - 10 | VAR 0 - 10 | --- - | W 10 - 20 |
| Sunday Night | W 10 - 20 | W 10 - 20 | W 10 - 20 | --- - | WNW 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | NW 5 - 15 |
| Saturday Afternoon - Saturday Evening | W 20 - 30 |
| Saturday Night - Sunday Morning | W 0 - 10 |
| Sunday Afternoon | E 5 - 15 |
| Sunday Night | W 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon - Saturday Evening | W 15 - 25 |
| Saturday Night - Sunday Morning | W 0 - 10 |
| Sunday Afternoon | E 0 - 10 |
| Sunday Night | W 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon - Saturday Evening | WNW 25 - 35 |
| Saturday Night - Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | VAR 0 - 10 |
| Sunday Night | W 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon - Saturday Evening | --- - |
| Saturday Night - Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | WNW 5 - 15 |
| Saturday Afternoon - Saturday Evening | WNW 15 - 25 |
| Saturday Night - Sunday Morning | W 25 - 35 |
| Sunday Afternoon | W 10 - 20 |
| Sunday Night | WNW 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Feb 25, 2017
The NWAC program is administered by the USDA-Forest Service and operates from the National Weather Service Forecast Office in Seattle. NWAC services are made possible by important collaboration and support from a wide variety of federal, state and private cooperators.
9 am: Updated cloud cover Cascades Saturday morning