Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Saturday & Wednesday
A trough sits over the U.S. west coast with an embedded closed low off the coast of central Oregon slowly drifting south on Saturday, while a second closed low within the same trough is spinning over southern Alberta on Saturday morning and will drift north and slightly west today and tonight. The diverging lows will move moisture away from the forecast area, resulting in fair weather for the Pacific Northwest with the best chances of snow shower activity in the Mt. Hood area where some weak snow showers and afternoon convective snow showers may continue. Light Frasier River outflow winds will keep clouds and light snow in the forecast this morning for the lower flanks of the North slopes of the Olympics, but these showers are unlikely to reach Hurricane Ridge.
Tonight, the low off the coast of Oregon ejects east as the trough begins moving eastward.
On Saturday as the trough exits, a very weak shortwave trough will rotate around the Alberta low, bringing another chance of light snow shower activity late Sunday and Sunday night.
Snow levels will be below pass level thorughout the short-term forecast period.
Weather Forecast
Olympics
| Saturday | Light NE or calm wind with clouds and occasional light snow along the lower elevation N flanks of the Olympics. Otherwise, clear in the morning with partly cloudy skies in the afternoon. |
| Saturday Night | Mostly clear. |
| Sunday | Clear in the morning, becoming cloudy with a slight chance of a snow shower late in the day. |
| Sunday Night | Mostly cloudy with a chance of a light snow shower. |
Washington Cascades near and west of the Crest including Stevens, Snoqualmie and White Passes
| Saturday | Mostly clear with some valley fog and a chance of some very mild convective showers at higher elevations in the afternoon. |
| Saturday Night | Mostly clear. |
| Sunday | Clear skies giving way to mostly cloudy skies in the morning in the north and central parts and including the southern part by afternoon. A chance of light snow showers later in the day. |
| Sunday Night | Mostly cloudy with light snow showers. |
East Slopes of the Washington Cascades
| Saturday | Mostly clear with some valley fog and a chance of some very mild convective showers at higher elevations in the afternoon. |
| Saturday Night | Mostly clear. |
| Sunday | Clear skies giving way to mostly cloudy skies in the morning in the north and central parts and including the southern part by afternoon. A chance of light snow showers later in the day. Mostly clear farther away from the Cascade Crest. |
| Sunday Night | Mostly cloudy with light snow showers with slightly more snow shower activity in the south Cascdes. Mostly clear farther away from the Cascade Crest. |
Mt. Hood
| Saturday | Partly cloudy with a chance of some very mild convective showers at higher elevations in the afternoon. |
| Saturday Night | Clearing skies. |
| Sunday | Increasing clouds with snow showers developing in the afternoon. |
| Sunday Night | Snow showers. |
Issued: 7:24 AM PST Saturday, March 3, 2018
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Saturday Morning | Snow Level | 2000' | 1000' | 0' | ' | ' | 1500' | ' | 2000' |
| Saturday Afternoon | Snow Level | 2000' | 1500' | 1500' | ' | ' | 2000' | ' | 2000' |
| Saturday Night | Snow Level | 1000' | 0' | 0' | ' | ' | 1000' | ' | 2000' |
| Sunday Morning | Snow Level | 1500' | 500' | 0' | ' | ' | 1000' | ' | 1500' |
| Sunday Afternoon | Snow Level | 2000' | 1500' | 1000' | ' | ' | 2000' | ' | 4000' |
| Sunday Night | Snow Level | 1500' | 500' | 500' | ' | ' | 1500' | ' | 3000' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning |
Snow Level 2000' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Night |
Snow Level 1000' |
| Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Night |
Snow Level 1500' |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning |
Snow Level 1000' |
| Saturday Afternoon |
Snow Level 1500' |
| Saturday Night |
Snow Level 0' |
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Night |
Snow Level 500' |
| Washington Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level 0' |
| Saturday Afternoon |
Snow Level 1500' |
| Saturday Night |
Snow Level 0' |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 1000' |
| Sunday Night |
Snow Level 500' |
| Leavenworth | Elevation |
|---|---|
| Saturday Morning |
Snow Level ' |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night |
Snow Level ' |
| Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' |
| Sunday Night |
Snow Level ' |
| Stevens Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level ' |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night |
Snow Level ' |
| Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' |
| Sunday Night |
Snow Level ' |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level 1500' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Night |
Snow Level 1000' |
| Sunday Morning |
Snow Level 1000' |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Night |
Snow Level 1500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Morning |
Snow Level ' |
| Saturday Afternoon |
Snow Level ' |
| Saturday Night |
Snow Level ' |
| Sunday Morning |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' |
| Sunday Night |
Snow Level ' |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning |
Snow Level 2000' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Night |
Snow Level 2000' |
| Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 4000' |
| Sunday 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
| Wednesday | Wednesday | |
|---|---|---|
| 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 0.25 |
| 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 | 0.25 - 0.50 |
| White Pass | LT 0.10 | 0.25 - 0.50 |
| Mt Hood Meadows | LT 0.10 | LT 0.25 |
| Timberline | LT 0.10 | 0.25 - 0.50 |
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: 7:24 AM PST Saturday, March 3, 2018
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Morning | NE 5 - 15 | ENE 5 - 15 | E 0 - 10 | --- - | E 5 - 15 |
| Saturday Afternoon | W 5 - 15 | VAR 0 - 10 | W 0 - 10 | --- - | E 0 - 10 |
| Saturday Night | W 5 - 15 | VAR 0 - 10 | VAR 0 - 10 | --- - | W 10 - 20 |
| Sunday Morning | WSW 10 - 20 | SW 5 - 15 | W 10 - 20 | --- - | W 15 - 25 |
| Sunday Afternoon | WSW 15 - 25 | SW 10 - 20 | WSW 15 - 25 | --- - | WSW 15 - 25 |
| Sunday Night | WSW 15 - 25 | WSW 10 - 20 | WSW 15 - 25 | --- - | WSW 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning | NE 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Saturday Night | W 5 - 15 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Night | WSW 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning | ENE 5 - 15 |
| Saturday Afternoon | VAR 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | SW 5 - 15 |
| Sunday Afternoon | SW 10 - 20 |
| Sunday Night | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning | E 0 - 10 |
| Saturday Afternoon | W 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | W 10 - 20 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Night | WSW 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning | E 5 - 15 |
| Saturday Afternoon | E 0 - 10 |
| Saturday Night | W 10 - 20 |
| Sunday Morning | W 15 - 25 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Night | WSW 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Morning | NE 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Saturday Night | W 5 - 15 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Night | WSW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | ENE 5 - 15 |
| Saturday Afternoon | VAR 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | SW 5 - 15 |
| Sunday Afternoon | SW 10 - 20 |
| Sunday Night | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | E 0 - 10 |
| Saturday Afternoon | W 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | W 10 - 20 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Night | WSW 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | E 5 - 15 |
| Saturday Afternoon | E 0 - 10 |
| Saturday Night | W 10 - 20 |
| Sunday Morning | W 15 - 25 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Night | WSW 20 - 30 |
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 | VAR 0 - 10 | W 5 - 15 | E 0 - 10 | --- - | SE 10 - 20 |
| Saturday Afternoon | WSW 5 - 15 | W 5 - 15 | VAR 0 - 10 | --- - | VAR 0 - 10 |
| Saturday Night | WSW 10 - 20 | WSW 10 - 20 | W 15 - 25 | --- - | WSW 10 - 20 |
| Sunday Morning | WSW 15 - 25 | WSW 10 - 20 | W 20 - 30 | --- - | W 20 - 30 |
| Sunday Afternoon | WSW 15 - 25 | WSW 20 - 30 | WSW 25 - 35 | --- - | W 25 - 35 |
| Sunday Night | WSW 15 - 25 | WSW 20 - 30 | W 30 - 40 | --- - | W 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | WSW 5 - 15 |
| Saturday Night | WSW 10 - 20 |
| Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Night | WSW 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Saturday Night | WSW 10 - 20 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 20 - 30 |
| Sunday Night | WSW 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | E 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Saturday Night | W 15 - 25 |
| Sunday Morning | W 20 - 30 |
| Sunday Afternoon | WSW 25 - 35 |
| Sunday Night | W 30 - 40 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | SE 10 - 20 |
| Saturday Afternoon | VAR 0 - 10 |
| Saturday Night | WSW 10 - 20 |
| Sunday Morning | W 20 - 30 |
| Sunday Afternoon | W 25 - 35 |
| Sunday Night | W 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Feb 28, 2018
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