Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Wednesday & Wednesday
Temperatures continue to drop this morning returning many of our mountain weather stations to below-freezing temperatures for the first time in several days. Look for the cooling trend to pause during the daylight hours causing snowlevels to oscillate a few hundred feet in either direction but generally remain steady. While the bulk of the precipitation has now moved east, lingering low-level moisture will combine with a very weak shortwave disturbance to ring out a few rain and snow showers on the west-slopes of the Cascades. Locations like Mt Baker, the Mountain Loop Highway, and Stevens Pass could pick-up a couple of inches of snow by the afternoon. Trailheads from I90 south and east of the Cascade crest will experience more isolated showers and any accumulations minimal.
We should see a break in the action overnight into Thursday as a short-lived high-pressure ridge slides over the Pacific Northwest. Expect dry conditions, partial clearing, and even a little sunshine. Winds should turn easterly as the high moves into central Washington. Areas prone to east wind events could see strong winds during the day. Our next weather system should arrive late Thursday night into Friday.
Weather Forecast
Hurricane Ridge
| Wednesday | Partly to mostly cloudy. Isolated rain and snow showers possible. Winds decreasing. |
Mt. Baker
| Wednesday | Mostly cloudy. Rain and snow showers. Winds decreasing in the afternoon. |
Washington Pass and Leavenworth
| Wednesday | Partly to mostly cloudy. Isolated showers near the crest. Light westerly winds. |
Stevens and Snoqualmie Pass
| Wednesday | Cloudy with rain and snow showers. Moderate westerly winds. |
Mt. Rainier, Crystal and White Pass
| Wednesday | Cloudy with isolated rain and snow showers. Light to moderate westerly winds. |
Mt. Hood
| Wednesday | Mostly cloudy. Dry. Moderate westerly winds. |
Issued: 6:41 AM PST Wednesday, December 9, 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 | 3500' | 4000' | 4000' | 4000' | 4000' | 4000' | 4000' | 4500' |
| Wednesday Afternoon | Snow Level | 4000' | 3500' | 3500' | 3500' | 4000' | 4000' | 4000' | 4000' |
| Wednesday Evening | Freezing Level | 4000' | 3500' | 3000' | 3000' | 3500' | 3500' | 3500' | 4000' |
| Wednesday Night | Freezing Level * | 3500' | 2000' | 1000' | 2000' | 2500' | 2500' | 2500' | 3000' |
| Thursday Morning | Freezing Level * | 4000' | 2500' | 1500' | 2500' | 2500' | 2500' | 3000' | 3500' |
| Thursday Afternoon | Freezing Level * | 4000' | 4000' | 3000' | 3000' | 3500' | 3500' | 4000' | 4000' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 3500' |
| Wednesday Afternoon |
Snow Level 4000' |
| Wednesday Evening |
Freezing Level 4000' |
| Wednesday Night |
Freezing Level 3500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 4000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 4000' |
| Wednesday Afternoon |
Snow Level 3500' |
| Wednesday Evening |
Freezing Level 3500' |
| Wednesday Night |
Freezing Level 2000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 4000' |
| Wednesday Afternoon |
Snow Level 3500' |
| Wednesday Evening |
Freezing Level 3000' |
| Wednesday Night |
Freezing Level 1000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 4000' |
| Wednesday Afternoon |
Snow Level 3500' |
| Wednesday Evening |
Freezing Level 3000' |
| Wednesday Night |
Freezing Level 2000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 4000' |
| Wednesday Afternoon |
Snow Level 4000' |
| Wednesday Evening |
Freezing Level 3500' |
| Wednesday Night |
Freezing Level 2500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 4000' |
| Wednesday Afternoon |
Snow Level 4000' |
| Wednesday Evening |
Freezing Level 3500' |
| Wednesday Night |
Freezing Level 2500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 4000' |
| Wednesday Afternoon |
Snow Level 4000' |
| Wednesday Evening |
Freezing Level 3500' |
| Wednesday Night |
Freezing Level 2500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 3000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 4500' |
| Wednesday Afternoon |
Snow Level 4000' |
| Wednesday Evening |
Freezing Level 4000' |
| Wednesday Night |
Freezing Level 3000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 3500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
* 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 | Wednesday | |
|---|---|---|---|
| 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 | LT 0.25 | 0 | 0 |
| Snoqualmie Pass | LT 0.25 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | LT 0.10 | 0 | 0 |
| Paradise | LT 0.10 | 0 | 0 |
| White Pass | LT 0.10 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | 0 |
| Timberline | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.25 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.25 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.25 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday 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: 6:41 AM PST Wednesday, December 9, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Morning | W 10 - 20 | WSW 10 - 20 | WNW 15 - 25 | W 10 - 20 | WNW 15 - 25 |
| Wednesday Afternoon | W 5 - 15 | W 5 - 15 | W 15 - 25 | W 10 - 20 | WNW 15 - 25 |
| Wednesday Evening | VAR 0 - 10 | SSW 0 - 10 | W 5 - 15 | VAR 0 - 10 | VAR 0 - 10 |
| Wednesday Night | SSE 0 - 10 | SE 5 - 15 | ESE 10 - 20 | ESE 5 - 15 | SSE 10 - 20 |
| Thursday Morning | SSE 5 - 15 | ESE 10 - 20 | ESE 10 - 20 | ESE 10 - 20 | SE 10 - 20 |
| Thursday Afternoon | S 5 - 15 | SE 5 - 15 | ESE 15 - 25 | ESE 10 - 20 | SE 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Morning | W 10 - 20 |
| Wednesday Afternoon | W 5 - 15 |
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | SSE 0 - 10 |
| Thursday Morning | SSE 5 - 15 |
| Thursday Afternoon | S 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Morning | WSW 10 - 20 |
| Wednesday Afternoon | W 5 - 15 |
| Wednesday Evening | SSW 0 - 10 |
| Wednesday Night | SE 5 - 15 |
| Thursday Morning | ESE 10 - 20 |
| Thursday Afternoon | SE 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Morning | WNW 15 - 25 |
| Wednesday Afternoon | W 15 - 25 |
| Wednesday Evening | W 5 - 15 |
| Wednesday Night | ESE 10 - 20 |
| Thursday Morning | ESE 10 - 20 |
| Thursday Afternoon | ESE 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Morning | W 10 - 20 |
| Wednesday Afternoon | W 10 - 20 |
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | ESE 5 - 15 |
| Thursday Morning | ESE 10 - 20 |
| Thursday Afternoon | ESE 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Morning | WNW 15 - 25 |
| Wednesday Afternoon | WNW 15 - 25 |
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | SSE 10 - 20 |
| Thursday Morning | SE 10 - 20 |
| Thursday Afternoon | SE 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Morning | W 10 - 20 |
| Wednesday Afternoon | W 5 - 15 |
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | SSE 0 - 10 |
| Thursday Morning | SSE 5 - 15 |
| Thursday Afternoon | S 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Morning | WSW 10 - 20 |
| Wednesday Afternoon | W 5 - 15 |
| Wednesday Evening | SSW 0 - 10 |
| Wednesday Night | SE 5 - 15 |
| Thursday Morning | ESE 10 - 20 |
| Thursday Afternoon | SE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Morning | WNW 15 - 25 |
| Wednesday Afternoon | W 15 - 25 |
| Wednesday Evening | W 5 - 15 |
| Wednesday Night | ESE 10 - 20 |
| Thursday Morning | ESE 10 - 20 |
| Thursday Afternoon | ESE 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Morning | W 10 - 20 |
| Wednesday Afternoon | W 10 - 20 |
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | ESE 5 - 15 |
| Thursday Morning | ESE 10 - 20 |
| Thursday Afternoon | ESE 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Morning | WNW 15 - 25 |
| Wednesday Afternoon | WNW 15 - 25 |
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | SSE 10 - 20 |
| Thursday Morning | SE 10 - 20 |
| Thursday Afternoon | SE 5 - 15 |
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 20 - 30 | WNW 30 - 40 | WNW 35 - 45 | WNW 35 - 45 | NW 35 - 45 |
| Wednesday Afternoon | WNW 20 - 30 | WNW 25 - 35 | WNW 30 - 40 | WNW 30 - 40 | NW 35 - 45 |
| Wednesday Evening | NW 15 - 25 | NW 15 - 25 | NW 25 - 35 | NW 30 - 40 | NNW 25 - 35 |
| Wednesday Night | W 10 - 20 | W 10 - 20 | W 10 - 20 | W 10 - 20 | W 5 - 15 |
| Thursday Morning | SW 15 - 25 | SW 10 - 20 | SW 10 - 20 | SW 10 - 20 | SW 10 - 20 |
| Thursday Afternoon | SSW 15 - 25 | SSW 10 - 20 | SSW 10 - 20 | SW 15 - 25 | SW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Morning | W 20 - 30 |
| Wednesday Afternoon | WNW 20 - 30 |
| Wednesday Evening | NW 15 - 25 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | SW 15 - 25 |
| Thursday Afternoon | SSW 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Morning | WNW 30 - 40 |
| Wednesday Afternoon | WNW 25 - 35 |
| Wednesday Evening | NW 15 - 25 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | SW 10 - 20 |
| Thursday Afternoon | SSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Morning | WNW 35 - 45 |
| Wednesday Afternoon | WNW 30 - 40 |
| Wednesday Evening | NW 25 - 35 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | SW 10 - 20 |
| Thursday Afternoon | SSW 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Morning | WNW 35 - 45 |
| Wednesday Afternoon | WNW 30 - 40 |
| Wednesday Evening | NW 30 - 40 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | SW 10 - 20 |
| Thursday Afternoon | SW 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Morning | NW 35 - 45 |
| Wednesday Afternoon | NW 35 - 45 |
| Wednesday Evening | NNW 25 - 35 |
| Wednesday Night | W 5 - 15 |
| Thursday Morning | SW 10 - 20 |
| Thursday Afternoon | SW 15 - 25 |
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 8, 2020
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