Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Wednesday & Saturday
An upper trough continues to bring cool air, some instability, and a moist W flow on Wednesday. Snow will turn showery by mid-morning. Winds will maintain their strength in the southern Cascades, focusing the heavier snow showers on Mt. Rainier and Mt. Hood. Paradise and Mt. Hood should pick up 6-10" of snowfall on Wednesday, while White Pass can expect 3-5" and the central Cascade Passes can expect 2-4". Expect a cooler day with snow levels below pass levels.
The trough should be short-lived as an offshore ridge nudges into our region Tuesday afternoon, flipping the upper-level flow NNW, and cutting off some of the moisture supply. The result will be decreasing and lighter snow shower activity. Shallow convection and trapped low-level moisture should end maintain very light snow showers activity which ends by Thursday morning.
On Thursday, the ridge moves over our region and should be just strong enough to keep a subtropical supply of moisture aimed north of the border into southern British Columbia. This subtropical source will help to bring some slightly milder air, with above-freezing temperatures expected for our mountains below 4000 ft. It should also maintain mostly cloudy skies over most of our mountains, however, Mt. Hood and the E slopes of the Cascades stand a good chance for some sunshine in the afternoon.
Weather Forecast
Hurricane Ridge
| Wednesday | Partly cloudy with decreasing scattered light snow showers. Cool. Light winds |
Mt. Baker
| Wednesday | Light snow in the early morning hours, then decreasing scattered light snow showers. Cool. Light winds. |
Washington Pass and Leavenworth
| Wednesday | Decreasing light to very light snow showers. Cool. Light winds. |
Stevens and Snoqualmie Pass
| Wednesday | Decreasing light to moderate snow showers in the morning, becoming light in the afternoon. Cooler. Light to moderate 5000 ft winds with light W wind through the passes. |
Mt. Rainier, Crystal and White Pass
| Wednesday | Decreasing moderate snow showers at Paradise, light to moderate snow showers at White Pass, and light snow showers at Crystal. Cooler. Light to moderate winds. |
Mt. Hood
| Wednesday | Moderate to occasionally heavy snow showers decreasing late in the day. Cooler. Moderate winds. |
Issued: 6:59 AM PST Wednesday, November 25, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Wednesday Morning | Snow Level | 2500' | 1500' | 1500' | 2000' | 2000' | 2000' | 2000' | 2500' |
| Wednesday Afternoon | Snow Level | 3000' | 2500' | 2000' | 3000' | 2500' | 2500' | 2500' | 2500' |
| Wednesday Evening | Snow Level | 3000' | 2000' | 2000' | 2500' | 2500' | 2500' | 2500' | 3000' |
| Wednesday Night | Snow Level | 3000' | 2000' | 2000' | 2500' | 2500' | 3000' | 3000' | 3000' |
| Thursday Morning | Freezing Level | 4000' | 3000' | 3000' | 3500' | 3500' | 3500' | 3500' | 4000' |
| Thursday Afternoon | Freezing Level | 5500' | 3500' | 3500' | 4500' | 4000' | 4000' | 4000' | 4000' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 2500' |
| Wednesday Afternoon |
Snow Level 3000' |
| Wednesday Evening |
Snow Level 3000' |
| Wednesday Night |
Snow Level 3000' |
| Thursday Morning |
Freezing Level 4000' |
| Thursday Afternoon |
Freezing Level 5500' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 1500' |
| Wednesday Afternoon |
Snow Level 2500' |
| Wednesday Evening |
Snow Level 2000' |
| Wednesday Night |
Snow Level 2000' |
| Thursday Morning |
Freezing Level 3000' |
| Thursday Afternoon |
Freezing Level 3500' |
| Washington Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 1500' |
| Wednesday Afternoon |
Snow Level 2000' |
| Wednesday Evening |
Snow Level 2000' |
| Wednesday Night |
Snow Level 2000' |
| Thursday Morning |
Freezing Level 3000' |
| Thursday Afternoon |
Freezing Level 3500' |
| Leavenworth | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 2000' |
| Wednesday Afternoon |
Snow Level 3000' |
| Wednesday Evening |
Snow Level 2500' |
| Wednesday Night |
Snow Level 2500' |
| Thursday Morning |
Freezing Level 3500' |
| Thursday Afternoon |
Freezing Level 4500' |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 2000' |
| Wednesday Afternoon |
Snow Level 2500' |
| Wednesday Evening |
Snow Level 2500' |
| Wednesday Night |
Snow Level 2500' |
| Thursday Morning |
Freezing Level 3500' |
| Thursday Afternoon |
Freezing Level 4000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 2000' |
| Wednesday Afternoon |
Snow Level 2500' |
| Wednesday Evening |
Snow Level 2500' |
| Wednesday Night |
Snow Level 3000' |
| Thursday Morning |
Freezing Level 3500' |
| Thursday Afternoon |
Freezing Level 4000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 2000' |
| Wednesday Afternoon |
Snow Level 2500' |
| Wednesday Evening |
Snow Level 2500' |
| Wednesday Night |
Snow Level 3000' |
| Thursday Morning |
Freezing Level 3500' |
| Thursday Afternoon |
Freezing Level 4000' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 2500' |
| Wednesday Afternoon |
Snow Level 2500' |
| Wednesday Evening |
Snow Level 3000' |
| Wednesday Night |
Snow Level 3000' |
| Thursday Morning |
Freezing Level 4000' |
| Thursday Afternoon |
Freezing Level 4000' |
* 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 Night | Saturday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | 0 | 0 |
| Mt Baker Ski Area | LT 0.25 | 0 | 0 |
| Washington Pass | LT 0.10 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | 0.25 | LT 0.10 | 0 |
| Snoqualmie Pass | 0.25 - 0.50 | LT 0.10 | 0 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | LT 0.10 | 0 | 0 |
| Paradise | 0.75 | LT 0.10 | 0 |
| White Pass | 0.25 - 0.50 | 0 | 0 |
| Mt Hood Meadows | 0.75 | LT 0.25 | 0 |
| Timberline | 0.75 | 0.25 - 0.50 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | 0 |
| Saturday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.25 |
| Wednesday Night | 0 |
| Saturday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | 0 |
| Saturday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Saturday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0.25 |
| Wednesday Night | LT 0.10 |
| Saturday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0.25 - 0.50 |
| Wednesday Night | LT 0.10 |
| Saturday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Saturday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | 0 |
| Saturday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday | 0.75 |
| Wednesday Night | LT 0.10 |
| Saturday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0.25 - 0.50 |
| Wednesday Night | 0 |
| Saturday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday | 0.75 |
| Wednesday Night | LT 0.25 |
| Saturday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday | 0.75 |
| Wednesday Night | 0.25 - 0.50 |
| Saturday | 0 |
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: 6:59 AM PST Wednesday, November 25, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Morning | WSW 5 - 15 | SW 5 - 15 | W 10 - 20 | WSW 10 - 20 | W 15 - 25 |
| Wednesday Afternoon | WSW 5 - 15 | WSW 0 - 10 | W 10 - 20 | W 10 - 20 | W 15 - 25 |
| Wednesday Evening | W 0 - 10 | SW 0 - 10 | W 10 - 20 | W 5 - 15 | W 15 - 25 |
| Wednesday Night | W 0 - 10 | WSW 0 - 10 | W 10 - 20 | W 5 - 15 | W 10 - 20 |
| Thursday Morning | WSW 5 - 15 | SW 5 - 15 | W 5 - 15 | W 5 - 15 | W 10 - 20 |
| Thursday Afternoon | SW 5 - 15 | SW 10 - 20 | W 5 - 15 | W 5 - 15 | W 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Morning | WSW 5 - 15 |
| Wednesday Afternoon | WSW 5 - 15 |
| Wednesday Evening | W 0 - 10 |
| Wednesday Night | W 0 - 10 |
| Thursday Morning | WSW 5 - 15 |
| Thursday Afternoon | SW 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Morning | SW 5 - 15 |
| Wednesday Afternoon | WSW 0 - 10 |
| Wednesday Evening | SW 0 - 10 |
| Wednesday Night | WSW 0 - 10 |
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Morning | W 10 - 20 |
| Wednesday Afternoon | W 10 - 20 |
| Wednesday Evening | W 10 - 20 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Morning | WSW 10 - 20 |
| Wednesday Afternoon | W 10 - 20 |
| Wednesday Evening | W 5 - 15 |
| Wednesday Night | W 5 - 15 |
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Morning | W 15 - 25 |
| Wednesday Afternoon | W 15 - 25 |
| Wednesday Evening | W 15 - 25 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | W 10 - 20 |
| Thursday Afternoon | W 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Morning | WSW 5 - 15 |
| Wednesday Afternoon | WSW 5 - 15 |
| Wednesday Evening | W 0 - 10 |
| Wednesday Night | W 0 - 10 |
| Thursday Morning | WSW 5 - 15 |
| Thursday Afternoon | SW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Morning | SW 5 - 15 |
| Wednesday Afternoon | WSW 0 - 10 |
| Wednesday Evening | SW 0 - 10 |
| Wednesday Night | WSW 0 - 10 |
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Morning | W 10 - 20 |
| Wednesday Afternoon | W 10 - 20 |
| Wednesday Evening | W 10 - 20 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Morning | WSW 10 - 20 |
| Wednesday Afternoon | W 10 - 20 |
| Wednesday Evening | W 5 - 15 |
| Wednesday Night | W 5 - 15 |
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Morning | W 15 - 25 |
| Wednesday Afternoon | W 15 - 25 |
| Wednesday Evening | W 15 - 25 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | W 10 - 20 |
| Thursday Afternoon | W 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Morning | W 15 - 25 | W 15 - 25 | W 20 - 30 | W 20 - 30 | W 25 - 35 |
| Wednesday Afternoon | W 10 - 20 | WNW 15 - 25 | WNW 20 - 30 | WNW 20 - 30 | WNW 25 - 35 |
| Wednesday Evening | WNW 15 - 25 | WNW 15 - 25 | WNW 20 - 30 | WNW 15 - 25 | NW 20 - 30 |
| Wednesday Night | WNW 15 - 25 | NW 15 - 25 | NW 25 - 35 | NW 25 - 35 | NNW 20 - 30 |
| Thursday Morning | WNW 30 - 40 | WNW 25 - 35 | WNW 35 - 45 | WNW 30 - 40 | NNW 25 - 35 |
| Thursday Afternoon | W 30 - 40 | W 30 - 40 | WNW 35 - 50 | WNW 30 - 40 | NW 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Morning | W 15 - 25 |
| Wednesday Afternoon | W 10 - 20 |
| Wednesday Evening | WNW 15 - 25 |
| Wednesday Night | WNW 15 - 25 |
| Thursday Morning | WNW 30 - 40 |
| Thursday Afternoon | W 30 - 40 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Morning | W 15 - 25 |
| Wednesday Afternoon | WNW 15 - 25 |
| Wednesday Evening | WNW 15 - 25 |
| Wednesday Night | NW 15 - 25 |
| Thursday Morning | WNW 25 - 35 |
| Thursday Afternoon | W 30 - 40 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Morning | W 20 - 30 |
| Wednesday Afternoon | WNW 20 - 30 |
| Wednesday Evening | WNW 20 - 30 |
| Wednesday Night | NW 25 - 35 |
| Thursday Morning | WNW 35 - 45 |
| Thursday Afternoon | WNW 35 - 50 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Morning | W 20 - 30 |
| Wednesday Afternoon | WNW 20 - 30 |
| Wednesday Evening | WNW 15 - 25 |
| Wednesday Night | NW 25 - 35 |
| Thursday Morning | WNW 30 - 40 |
| Thursday Afternoon | WNW 30 - 40 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Morning | W 25 - 35 |
| Wednesday Afternoon | WNW 25 - 35 |
| Wednesday Evening | NW 20 - 30 |
| Wednesday Night | NNW 20 - 30 |
| Thursday Morning | NNW 25 - 35 |
| Thursday Afternoon | NW 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 Nov 24, 2020
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