Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Saturday & Sunday
A slow-moving, deep and broad trough sits over the Pacific Northwest and near shore waters on Saturday morning.
Within the broad trough, a low moves SE off the Oregon coast on Saturday morning, but a piece of energy has ejected, bringing an upper trough across Western Washington on Saturday morning with a surface low over south Central Washington. This weather feature should continue light snow into the mid-morning hours hours in many areas of the Cascades and into the late morning hours in parts of the central Cascades where convergence will produce slightly higher snowfall rates in some areas between Snoqualmie and Stevens passes. Isolated snow showers are possible in the afternoon with a weakly unstable air mass.
Light snow should also taper off this morning in the Mt. Hood area, but they are likely to be brushed by another round of light to occasional moderate snow during the afternoon and evening hours before a clearing trend will begin after midnight.
Over Washington State, Saturday afternoon will see increasing sun breaks with scattered cumulus clouds and skies will clear Saturday night with light westerly winds and the weather features departed either south or east of our region.
Sunday will see increasing clouds ahead of an upper level trough arriving on NW flow that will bring increasing light snow to the region on Sunday night along with light to moderate W-SW crest-level winds.
Weather Forecast
Olympics
| Saturday | Snow showers, mainly in the afternoon. |
| Saturday Night | Clear skies. |
| Sunday | Increasing clouds with a chance of a snow shower by evening. |
| Sunday Night | Cloudy with occasional light snow. |
Washington Cascades near and west of the Crest including Stevens, Snoqualmie and White Passes
| Saturday | Decreasing light to snow by mid-to-late morning, heaviest in convergence, central part. Becoming partly cloudy in the afternoon. |
| Saturday Night | Clear skies. |
| Sunday | Scattered, but increasing, cloud-cover. Chance of a snow shower by evening. |
| Sunday Night | Cloudy with light snow increasing after midnight. |
East Slopes of the Washington Cascades
| Saturday | Decreasing light to snow by mid-to-late morning, heaviest in convergence, central part. Becoming partly cloudy in the afternoon. Mostly cloudy after midnight. |
| Saturday Night | Clear skies. |
| Sunday | Scattered, but increasing, cloud-cover. |
| Sunday Night | Cloudy with light snow near the Cascade crest, increasing after midnight. |
Mt. Hood
| Saturday | Light snow decreasing early with light to occasional moderate snow in the late afternoon. |
| Saturday Night | light to occasional moderate snow during the evening. Clearing |
| Sunday | Mostly cloudy. |
| Sunday Night | Cloudy with light snow developing after midnight. |
Issued: 7:40 AM PDT Saturday, March 24, 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 | 1500' | 1000' | 1500' | ' | ' | 1500' | ' | 150' |
| Saturday Afternoon | Snow Level | 2000' | 2000' | 2500' | ' | ' | 2500' | ' | 2500' |
| Saturday Night | Snow Level | 1500' | 1000' | 1000' | ' | ' | 1000' | ' | 2000' |
| Sunday Morning | Snow Level | 1500' | 1500' | 2000' | ' | ' | 2000' | ' | 2500' |
| Sunday Afternoon | Snow Level | 2000' | 2500' | 3000' | ' | ' | 2500' | ' | 3000' |
| Sunday Night | Snow Level | 2500' | 1500' | 1000' | ' | ' | 1500' | ' | 1500' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning |
Snow Level 1500' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Night |
Snow Level 1500' |
| Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Night |
Snow Level 2500' |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning |
Snow Level 1000' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Night |
Snow Level 1000' |
| Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 2500' |
| Sunday Night |
Snow Level 1500' |
| Washington Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level 1500' |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Night |
Snow Level 1000' |
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Night |
Snow Level 1000' |
| 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 2500' |
| Saturday Night |
Snow Level 1000' |
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 2500' |
| 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 150' |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Night |
Snow Level 2000' |
| Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Night |
Snow Level 1500' |
* 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 | LT 0.10 |
| Mt Baker Ski Area | LT 0.10 | LT 0.25 |
| Washington Pass | LT 0.25 | LT 0.10 |
| Stevens Pass | LT 0.25 | LT 0.10 |
| Snoqualmie Pass | LT 0.25 | LT 0.25 |
| Mission Ridge | LT 0.10 | LT 0.10 |
| Crystal Mt | LT 0.10 | LT 0.10 |
| Paradise | LT 0.25 | LT 0.25 |
| White Pass | LT 0.25 | LT 0.10 |
| Mt Hood Meadows | LT 0.25 | LT 0.10 |
| Timberline | 0.25 - 0.50 | 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: 7:40 AM PDT Saturday, March 24, 2018
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Morning | W 5 - 15 | W 5 - 15 | W 10 - 20 | --- - | WSW 10 - 20 |
| Saturday Afternoon | W 5 - 15 | WSW 5 - 15 | WSW 5 - 15 | --- - | E 5 - 15 |
| Saturday Night | W 5 - 15 | WSW 5 - 15 | W 5 - 15 | --- - | W 10 - 20 |
| Sunday Morning | WSW 10 - 20 | SW 5 - 15 | WSW 10 - 20 | --- - | WSW 15 - 25 |
| Sunday Afternoon | WSW 10 - 20 | WSW 10 - 20 | WSW 15 - 25 | --- - | WSW 15 - 25 |
| Sunday Night | WSW 10 - 20 | SSW 10 - 20 | WSW 20 - 30 | --- - | WSW 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Saturday Night | W 5 - 15 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Sunday Night | WSW 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | WSW 5 - 15 |
| Saturday Night | WSW 5 - 15 |
| Sunday Morning | SW 5 - 15 |
| Sunday Afternoon | WSW 10 - 20 |
| Sunday Night | SSW 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning | W 10 - 20 |
| Saturday Afternoon | WSW 5 - 15 |
| Saturday Night | W 5 - 15 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Night | WSW 20 - 30 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning | WSW 10 - 20 |
| Saturday Afternoon | E 5 - 15 |
| Saturday Night | W 10 - 20 |
| Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Night | WSW 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Saturday Night | W 5 - 15 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Sunday Night | WSW 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | WSW 5 - 15 |
| Saturday Night | WSW 5 - 15 |
| Sunday Morning | SW 5 - 15 |
| Sunday Afternoon | WSW 10 - 20 |
| Sunday Night | SSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | W 10 - 20 |
| Saturday Afternoon | WSW 5 - 15 |
| Saturday Night | W 5 - 15 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Night | WSW 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | WSW 10 - 20 |
| Saturday Afternoon | E 5 - 15 |
| Saturday Night | W 10 - 20 |
| Sunday Morning | WSW 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 | W 5 - 15 | W 5 - 15 | WSW 15 - 25 | --- - | WSW 20 - 30 |
| Saturday Afternoon | W 10 - 20 | W 10 - 20 | WSW 20 - 30 | --- - | WSW 15 - 25 |
| Saturday Night | W 10 - 20 | W 10 - 20 | W 15 - 25 | --- - | SSW 15 - 25 |
| Sunday Morning | WSW 15 - 25 | WSW 10 - 20 | WSW 20 - 30 | --- - | W 20 - 30 |
| Sunday Afternoon | WSW 20 - 30 | W 15 - 25 | W 25 - 35 | --- - | W 25 - 35 |
| Sunday Night | W 20 - 30 | W 25 - 35 | W 25 - 35 | --- - | W 30 - 40 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night | W 10 - 20 |
| Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | WSW 20 - 30 |
| Sunday Night | W 20 - 30 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 10 - 20 |
| Saturday Night | W 10 - 20 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | W 15 - 25 |
| Sunday Night | W 25 - 35 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | WSW 15 - 25 |
| Saturday Afternoon | WSW 20 - 30 |
| Saturday Night | W 15 - 25 |
| Sunday Morning | WSW 20 - 30 |
| Sunday Afternoon | W 25 - 35 |
| Sunday Night | W 25 - 35 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | --- - |
| Saturday Afternoon | --- - |
| Saturday Night | --- - |
| Sunday Morning | --- - |
| Sunday Afternoon | --- - |
| Sunday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | WSW 20 - 30 |
| Saturday Afternoon | WSW 15 - 25 |
| Saturday Night | SSW 15 - 25 |
| Sunday Morning | W 20 - 30 |
| Sunday Afternoon | W 25 - 35 |
| Sunday Night | W 30 - 40 |
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 Mar 21, 2018
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