Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Saturday & Wednesday
High pressure will lead to another dry day across the region as we await a weak frontal system that's well offshore this morning. Free air freezing levels are around 11,000' across the Pacific Northwest and above freezing temperature are being realized at all weather stations above roughly 5000-6000'. Strong offshore flow continues to drive colder air through the Passes and occasionally low clouds. At 6 am this morning, it's 9F in Mazama and 51F at Pan Dome at the Mt Baker Ski area!
The frontal system will split as it approaches the coast and should spread increasing cloud cover mainly for the Mt Hood region this afternoon. As the front weakens and a weak surface low drifts inland overnight into the south-central Puget sound, light rain and snow should develop along the west slopes of the Cascades from about Stevens Pass and southward in the early morning hours. Snow levels will come down, but this will not be a cold system. Precipitation should largely stay south of the north Cascades overnight. Moderate to strong easterly offshore flow will ease overnight in the Passes.
Light post-frontal showers should follow on Sunday morning with snow levels rising to 4000-5000' across the area. A partial clearing trend is likely for the south Washington Cascades and Mt Hood area by the afternoon.
Weather Forecast
Hurricane Ridge
| Saturday | Mostly sunny. A few high clouds in the afternoon. |
Mt. Baker
| Saturday | Mostly sunny. |
Washington Pass and Leavenworth
| Saturday | Mostly sunny. Areas of low clouds valleys and lower slopes. |
Stevens and Snoqualmie Pass
| Saturday | Mostly sunny. Areas of low clouds valleys and lower slopes east of the Pass. Moderate to strong east winds at ridgetop and Pass level. |
Mt. Rainier, Crystal and White Pass
| Saturday | Mostly sunny. A few high clouds in the afternoon. |
Mt. Hood
| Saturday | Mostly sunny in the morning, becoming mostly cloudy late with increasing high clouds. |
Issued: 7:11 AM PST Saturday, December 5, 2020
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 * | 11000' | 11000' | 10000' | 10000' | 10000' | 11000' | 11000' | 11000' |
| Saturday Afternoon | Freezing Level * | 7500' | 7000' | 4000' | 5000' | 5500' | 8500' | 7500' | 8500' |
| Saturday Evening | Freezing Level * | 6500' | 6500' | 4000' | 4000' | 4000' | 6500' | 6500' | 6500' |
| Saturday Night | Snow Level * | 5500' | 5500' | 3000' | 3000' | 4000' | 4500' | 5500' | 4500' |
| Sunday Morning | Snow Level | 5000' | 4500' | 4000' | 4000' | 4500' | 4500' | 4500' | 4500' |
| Sunday Afternoon | Snow Level | 5000' | 5000' | 4000' | 4500' | 5000' | 5000' | 5000' | 5000' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 11000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 7500' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Saturday Night |
Snow Level 5500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 5000' |
| Sunday Afternoon |
Snow Level 5000' |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 11000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 7000' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Saturday Night |
Snow Level 5500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 4500' |
| Sunday Afternoon |
Snow Level 5000' |
| Washington Pass | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 4000' (Easterly Flow *) |
| Saturday Night |
Snow Level 3000' (Easterly Flow *) |
| Sunday Morning |
Snow Level 4000' |
| Sunday Afternoon |
Snow Level 4000' |
| Leavenworth | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 4000' (Easterly Flow *) |
| Saturday Night |
Snow Level 3000' (Easterly Flow *) |
| Sunday Morning |
Snow Level 4000' |
| Sunday Afternoon |
Snow Level 4500' |
| Stevens Pass | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 5500' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 4000' (Easterly Flow *) |
| Saturday Night |
Snow Level 4000' (Easterly Flow *) |
| Sunday Morning |
Snow Level 4500' |
| Sunday Afternoon |
Snow Level 5000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 11000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 8500' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Saturday Night |
Snow Level 4500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 4500' |
| Sunday Afternoon |
Snow Level 5000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 11000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 7500' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Saturday Night |
Snow Level 5500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 4500' |
| Sunday Afternoon |
Snow Level 5000' |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning |
Freezing Level 11000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 8500' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Saturday Night |
Snow Level 4500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 4500' |
| Sunday Afternoon |
Snow Level 5000' |
* 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
| Saturday | Saturday Night | Wednesday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | LT 0.10 |
| Mt Baker Ski Area | 0 | LT 0.10 | LT 0.10 |
| Washington Pass | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | 0 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | 0 | LT 0.10 | LT 0.25 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | 0 | LT 0.10 | LT 0.10 |
| Paradise | 0 | LT 0.25 | LT 0.25 |
| White Pass | 0 | LT 0.10 | LT 0.10 |
| Mt Hood Meadows | 0 | LT 0.25 | LT 0.10 |
| Timberline | 0 | 0.25 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | LT 0.10 |
| Wednesday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | LT 0.10 |
| Wednesday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | 0 |
| Wednesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | 0 |
| Wednesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | LT 0.10 |
| Wednesday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | LT 0.10 |
| Wednesday | LT 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | 0 |
| Wednesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | LT 0.10 |
| Wednesday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | LT 0.25 |
| Wednesday | LT 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | LT 0.10 |
| Wednesday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | LT 0.25 |
| Wednesday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Saturday | 0 |
| Saturday Night | 0.25 |
| Wednesday | 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: 7:11 AM PST Saturday, December 5, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Morning | S 10 - 20 | S 10 - 20 | SE 20 - 30 | SE 20 - 30 | SE 10 - 20 |
| Saturday Afternoon | S 20 - 30 | S 20 - 30 | SE 15 - 25 | SE 10 - 20 | S 10 - 20 |
| Saturday Evening | S 10 - 20 | SE 10 - 20 | SE 10 - 20 | S 10 - 20 | SW 10 - 20 |
| Saturday Night | S 10 - 20 | SW 5 - 15 | SE 10 - 20 | S 10 - 20 | S 10 - 20 |
| Sunday Morning | SW 5 - 15 | SSW 5 - 15 | SW 10 - 20 | SSW 10 - 20 | W 15 - 25 |
| Sunday Afternoon | SW 5 - 15 | SW 0 - 10 | WSW 10 - 20 | W 5 - 15 | WNW 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning | S 10 - 20 |
| Saturday Afternoon | S 20 - 30 |
| Saturday Evening | S 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | SW 5 - 15 |
| Sunday Afternoon | SW 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning | S 10 - 20 |
| Saturday Afternoon | S 20 - 30 |
| Saturday Evening | SE 10 - 20 |
| Saturday Night | SW 5 - 15 |
| Sunday Morning | SSW 5 - 15 |
| Sunday Afternoon | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning | SE 20 - 30 |
| Saturday Afternoon | SE 15 - 25 |
| Saturday Evening | SE 10 - 20 |
| Saturday Night | SE 10 - 20 |
| Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Morning | SE 20 - 30 |
| Saturday Afternoon | SE 10 - 20 |
| Saturday Evening | S 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | SSW 10 - 20 |
| Sunday Afternoon | W 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning | SE 10 - 20 |
| Saturday Afternoon | S 10 - 20 |
| Saturday Evening | SW 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | W 15 - 25 |
| Sunday Afternoon | WNW 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Morning | S 10 - 20 |
| Saturday Afternoon | S 20 - 30 |
| Saturday Evening | S 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | SW 5 - 15 |
| Sunday Afternoon | SW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | S 10 - 20 |
| Saturday Afternoon | S 20 - 30 |
| Saturday Evening | SE 10 - 20 |
| Saturday Night | SW 5 - 15 |
| Sunday Morning | SSW 5 - 15 |
| Sunday Afternoon | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | SE 20 - 30 |
| Saturday Afternoon | SE 15 - 25 |
| Saturday Evening | SE 10 - 20 |
| Saturday Night | SE 10 - 20 |
| Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | SE 20 - 30 |
| Saturday Afternoon | SE 10 - 20 |
| Saturday Evening | S 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | SSW 10 - 20 |
| Sunday Afternoon | W 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | SE 10 - 20 |
| Saturday Afternoon | S 10 - 20 |
| Saturday Evening | SW 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | W 15 - 25 |
| Sunday Afternoon | 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Morning | SSW 10 - 20 | SSW 10 - 20 | S 20 - 30 | S 10 - 20 | S 10 - 20 |
| Saturday Afternoon | S 20 - 30 | S 20 - 30 | S 20 - 30 | S 20 - 30 | SW 20 - 30 |
| Saturday Evening | SW 20 - 30 | SW 10 - 20 | SW 10 - 20 | SW 15 - 2 | SSW 25 - 35 |
| Saturday Night | SW 20 - 30 | SW 10 - 20 | SW 15 - 25 | SW 20 - 30 | WSW 20 - 30 |
| Sunday Morning | SW 15 - 25 | SW 10 - 20 | WSW 20 - 30 | WSW 20 - 30 | WNW 20 - 30 |
| Sunday Afternoon | WSW 10 - 20 | WSW 10 - 20 | W 10 - 20 | W 5 - 15 | NW 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | SSW 10 - 20 |
| Saturday Afternoon | S 20 - 30 |
| Saturday Evening | SW 20 - 30 |
| Saturday Night | SW 20 - 30 |
| Sunday Morning | SW 15 - 25 |
| Sunday Afternoon | WSW 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Morning | SSW 10 - 20 |
| Saturday Afternoon | S 20 - 30 |
| Saturday Evening | SW 10 - 20 |
| Saturday Night | SW 10 - 20 |
| Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | S 20 - 30 |
| Saturday Afternoon | S 20 - 30 |
| Saturday Evening | SW 10 - 20 |
| Saturday Night | SW 15 - 25 |
| Sunday Morning | WSW 20 - 30 |
| Sunday Afternoon | W 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | S 10 - 20 |
| Saturday Afternoon | S 20 - 30 |
| Saturday Evening | SW 15 - 2 |
| Saturday Night | SW 20 - 30 |
| Sunday Morning | WSW 20 - 30 |
| Sunday Afternoon | W 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | S 10 - 20 |
| Saturday Afternoon | SW 20 - 30 |
| Saturday Evening | SSW 25 - 35 |
| Saturday Night | WSW 20 - 30 |
| Sunday Morning | WNW 20 - 30 |
| Sunday Afternoon | NW 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Dec 4, 2020
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