Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Thursday & Wednesday
A ridge of high pressure attempts to dominate the weather pattern for the next several days. However, lingering moisture behind a recently departed system will keep clouds and a slight chance of very light rain and snow showers (up to a few hundredths of an inch of water equivalent) in the forecast for parts of the west slopes of the Cascades on Thanksgiving Day. The ridge should increasingly win the battle between the dry and moist air in southern parts of the Cascades by Thursday afternoon, so expect increasing chances for sun breaks in the southern and eastern Cascades during the afternoon. However, as the ridge pushes northward, it will tighten the pressure gradient due to the presence of a frontal system sending subtropical moisture into southern British Columbia. This will bring increasing moderate winds to above treeline areas of the north and eastern Cascades on Thursday.
Limited moisture from the frontal system to our north may brush the Mt. Baker area overnight, bringing an inch or less of snow Thursday night while most other areas remain mostly cloudy and dry. Winds should decrease slightly.
On Friday, the day will start partly cloudy to mostly sunny over much of the Cascade. The main portion of the weakening frontal system drops SE, increasing cloud cover throughout the day and also increasing moderate alpine winds, particularly in the Mt. Baker and Olympics regions.
Weather Forecast
Hurricane Ridge
| Thursday | Partly cloudy. Milder in the afternoon. Light winds. |
Mt. Baker
| Thursday | Cloudy with a chance of very light snow showers. Light to moderate winds above treeline increasing throughout the day. |
Washington Pass and Leavenworth
| Thursday | Mostly cloudy near the Cascade Crest with partly cloudy skies further east (and south). Slightly increasing moderate winds above treeline. |
Stevens and Snoqualmie Pass
| Thursday | Chance of very light snow showers or drizzle (below pass level). Light to moderate winds above treeline. Light W wind through the passes. |
Mt. Rainier, Crystal and White Pass
| Thursday | Mostly cloudy with a chance of very light rain or snow showers in the morning. Becoming partly cloudy late in the day. Light winds above treeline. |
Mt. Hood
| Thursday | Mostly cloudy with some very light rain or snow showers in the morning. Frequent sun breaks on the east side of the mountains. Light winds. |
Issued: 7:05 AM PST Thursday, November 26, 2020
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 | 3000' | 2000' | 2000' | 3000' | 2500' | 3000' | 3000' | 3500' |
| Thursday Afternoon | Snow Level | 4500' | 2500' | 2500' | 4000' | 3000' | 3000' | 3500' | 4500' |
| Thursday Evening | Snow Level | 4500' | 2500' | 2500' | 4500' | 3000' | 3000' | 4000' | 5000' |
| Thursday Night | Snow Level | 5000' | 2500' | 2500' | 4000' | 3000' | 3000' | 4500' | 6000' |
| Friday Morning | Freezing Level | 6500' | 3500' | 3000' | 5500' | 4500' | 5500' | 6500' | 9000' |
| Friday Afternoon | Freezing Level | 7500' | 4000' | 4000' | 7500' | 6500' | 8000' | 8500' | 10500' |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3000' |
| Thursday Afternoon |
Snow Level 4500' |
| Thursday Evening |
Snow Level 4500' |
| Thursday Night |
Snow Level 5000' |
| Friday Morning |
Freezing Level 6500' |
| Friday Afternoon |
Freezing Level 7500' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Morning |
Snow Level 2000' |
| Thursday Afternoon |
Snow Level 2500' |
| Thursday Evening |
Snow Level 2500' |
| Thursday Night |
Snow Level 2500' |
| Friday Morning |
Freezing Level 3500' |
| Friday Afternoon |
Freezing Level 4000' |
| Washington Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 2000' |
| Thursday Afternoon |
Snow Level 2500' |
| Thursday Evening |
Snow Level 2500' |
| Thursday Night |
Snow Level 2500' |
| Friday Morning |
Freezing Level 3000' |
| Friday Afternoon |
Freezing Level 4000' |
| Leavenworth | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3000' |
| Thursday Afternoon |
Snow Level 4000' |
| Thursday Evening |
Snow Level 4500' |
| Thursday Night |
Snow Level 4000' |
| Friday Morning |
Freezing Level 5500' |
| Friday Afternoon |
Freezing Level 7500' |
| Stevens Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 2500' |
| Thursday Afternoon |
Snow Level 3000' |
| Thursday Evening |
Snow Level 3000' |
| Thursday Night |
Snow Level 3000' |
| Friday Morning |
Freezing Level 4500' |
| Friday Afternoon |
Freezing Level 6500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3000' |
| Thursday Afternoon |
Snow Level 3000' |
| Thursday Evening |
Snow Level 3000' |
| Thursday Night |
Snow Level 3000' |
| Friday Morning |
Freezing Level 5500' |
| Friday Afternoon |
Freezing Level 8000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3000' |
| Thursday Afternoon |
Snow Level 3500' |
| Thursday Evening |
Snow Level 4000' |
| Thursday Night |
Snow Level 4500' |
| Friday Morning |
Freezing Level 6500' |
| Friday Afternoon |
Freezing Level 8500' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3500' |
| Thursday Afternoon |
Snow Level 4500' |
| Thursday Evening |
Snow Level 5000' |
| Thursday Night |
Snow Level 6000' |
| Friday Morning |
Freezing Level 9000' |
| Friday Afternoon |
Freezing Level 10500' |
* 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
| Thursday | Thursday Night | Wednesday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | 0 |
| Mt Baker Ski Area | LT 0.10 | LT 0.10 | 0 |
| Washington Pass | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | LT 0.10 | 0 | 0 |
| Snoqualmie Pass | LT 0.10 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | 0 |
| Paradise | LT 0.10 | 0 | 0 |
| White Pass | LT 0.10 | 0 | 0 |
| Mt Hood Meadows | LT 0.10 | 0 | 0 |
| Timberline | LT 0.10 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Thursday | 0 |
| Thursday Night | 0 |
| Wednesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | LT 0.10 |
| Wednesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Thursday | 0 |
| Thursday Night | 0 |
| Wednesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Thursday | 0 |
| Thursday Night | 0 |
| Wednesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | 0 |
| Wednesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | 0 |
| Wednesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Thursday | 0 |
| Thursday Night | 0 |
| Wednesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Thursday | 0 |
| Thursday Night | 0 |
| Wednesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | 0 |
| Wednesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | 0 |
| Wednesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | 0 |
| Wednesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | 0 |
| Wednesday | 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: 7:05 AM PST Thursday, November 26, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Thursday Morning | WSW 0 - 10 | SW 0 - 10 | W 5 - 15 | WSW 5 - 15 | W 5 - 15 |
| Thursday Afternoon | WSW 0 - 10 | SW 5 - 15 | W 5 - 15 | W 5 - 15 | W 5 - 15 |
| Thursday Evening | WSW 5 - 15 | SSW 5 - 15 | W 5 - 15 | W 5 - 15 | W 5 - 15 |
| Thursday Night | SW 5 - 15 | SSW 5 - 15 | W 5 - 15 | W 5 - 15 | WSW 5 - 15 |
| Friday Morning | SSW 10 - 20 | SSW 10 - 20 | WSW 5 - 15 | SW 5 - 15 | WSW 5 - 15 |
| Friday Afternoon | SW 20 - 30 | S 20 - 30 | WSW 10 - 20 | WSW 10 - 20 | WSW 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Morning | WSW 0 - 10 |
| Thursday Afternoon | WSW 0 - 10 |
| Thursday Evening | WSW 5 - 15 |
| Thursday Night | SW 5 - 15 |
| Friday Morning | SSW 10 - 20 |
| Friday Afternoon | SW 20 - 30 |
| Mt. Baker | Elevation |
|---|---|
| Thursday Morning | SW 0 - 10 |
| Thursday Afternoon | SW 5 - 15 |
| Thursday Evening | SSW 5 - 15 |
| Thursday Night | SSW 5 - 15 |
| Friday Morning | SSW 10 - 20 |
| Friday Afternoon | S 20 - 30 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Thursday Evening | W 5 - 15 |
| Thursday Night | W 5 - 15 |
| Friday Morning | WSW 5 - 15 |
| Friday Afternoon | WSW 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Thursday Morning | WSW 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Thursday Evening | W 5 - 15 |
| Thursday Night | W 5 - 15 |
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | WSW 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Thursday Evening | W 5 - 15 |
| Thursday Night | WSW 5 - 15 |
| Friday Morning | WSW 5 - 15 |
| Friday Afternoon | WSW 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Thursday Morning | WSW 0 - 10 |
| Thursday Afternoon | WSW 0 - 10 |
| Thursday Evening | WSW 5 - 15 |
| Thursday Night | SW 5 - 15 |
| Friday Morning | SSW 10 - 20 |
| Friday Afternoon | SW 20 - 30 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Morning | SW 0 - 10 |
| Thursday Afternoon | SW 5 - 15 |
| Thursday Evening | SSW 5 - 15 |
| Thursday Night | SSW 5 - 15 |
| Friday Morning | SSW 10 - 20 |
| Friday Afternoon | S 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Thursday Evening | W 5 - 15 |
| Thursday Night | W 5 - 15 |
| Friday Morning | WSW 5 - 15 |
| Friday Afternoon | WSW 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Morning | WSW 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Thursday Evening | W 5 - 15 |
| Thursday Night | W 5 - 15 |
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | WSW 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Thursday Evening | W 5 - 15 |
| Thursday Night | WSW 5 - 15 |
| Friday Morning | WSW 5 - 15 |
| Friday Afternoon | WSW 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 | |
|---|---|---|---|---|---|
| Thursday Morning | WNW 30 - 40 | WNW 30 - 40 | WNW 35 - 50 | NW 35 - 50 | NNW 30 - 40 |
| Thursday Afternoon | W 30 - 40 | WNW 30 - 40 | WNW 35 - 50 | WNW 30 - 40 | NW 25 - 35 |
| Thursday Evening | W 25 - 35 | W 20 - 30 | WNW 30 - 40 | WNW 25 - 35 | NW 20 - 30 |
| Thursday Night | W 35 - 50 | W 30 - 40 | W 35 - 50 | W 25 - 35 | WNW 20 - 30 |
| Friday Morning | WSW 35 - 50 | WSW 35 - 50 | W 35 - 50 | W 30 - 40 | W 20 - 30 |
| Friday Afternoon | WSW 40 - 55 | WSW 40 - 55 | WSW 40 - 55 | WSW 35 - 50 | SW 30 - 40 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Morning | WNW 30 - 40 |
| Thursday Afternoon | W 30 - 40 |
| Thursday Evening | W 25 - 35 |
| Thursday Night | W 35 - 50 |
| Friday Morning | WSW 35 - 50 |
| Friday Afternoon | WSW 40 - 55 |
| Washington Pass | Direction - Speed |
|---|---|
| Thursday Morning | WNW 30 - 40 |
| Thursday Afternoon | WNW 30 - 40 |
| Thursday Evening | W 20 - 30 |
| Thursday Night | W 30 - 40 |
| Friday Morning | WSW 35 - 50 |
| Friday Afternoon | WSW 40 - 55 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Morning | WNW 35 - 50 |
| Thursday Afternoon | WNW 35 - 50 |
| Thursday Evening | WNW 30 - 40 |
| Thursday Night | W 35 - 50 |
| Friday Morning | W 35 - 50 |
| Friday Afternoon | WSW 40 - 55 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Morning | NW 35 - 50 |
| Thursday Afternoon | WNW 30 - 40 |
| Thursday Evening | WNW 25 - 35 |
| Thursday Night | W 25 - 35 |
| Friday Morning | W 30 - 40 |
| Friday Afternoon | WSW 35 - 50 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Morning | NNW 30 - 40 |
| Thursday Afternoon | NW 25 - 35 |
| Thursday Evening | NW 20 - 30 |
| Thursday Night | WNW 20 - 30 |
| Friday Morning | W 20 - 30 |
| Friday Afternoon | SW 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 Nov 25, 2020
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