Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Wednesday & Wednesday
A shortwave trough plunges southeast into the region behind a cold-front passing the mountains around noon on Wednesday. With seasonably cold temperatures in place, the mountains will see increasing snow in the morning and snow shower activity in the afternoon. During the day on Wednesday expect 2-6" in the passes, around 6" for Mt. Baker, and 6-8" for Paradise and Mt. Hood areas, while the Cascades east slopes pick up 1-3". Generally light snow shower activity will continue Wednesday night adding 1-4" in many locations along the Cascades west slopes and appoximately 6" at Mt. Hood, with 0-2" on the Cascades east slopes. Periods of somewhat heavier snow possible in convergence bands over the central Washington Cascades.
Snow showers decrease and generally end on Thursday as flow turns N-NWerly. High clouds should continue to spill over a "dirty ridge" building offshore.
The pattern continues Thursday night as the ridge edges slightly closer.
On Friday, a warm front arrives over the top of the ridge from the west, bringing moderate rain or snow and rising snow levels along with increasing SW winds.
Weather Forecast
Hurricane Ridge
| Wednesday | Light snow in the morning, becoming showery in the afternoon. Moderate winds. |
Mt. Baker
| Wednesday | Increasing light snow in the morning, becoming moderate in the mid-day hours, then decreasing toward evening. Moderate winds. |
Washington Pass and Leavenworth
| Wednesday | Light snow, heaviest mid-day. Light to moderate winds. |
Stevens and Snoqualmie Pass
| Wednesday | Light to occasionally moderate snow. Moderate winds. East flow in the morning, switching to westerly after noon. |
Mt. Rainier, Crystal and White Pass
| Wednesday | White Pass and Crsystal will have light snow, heaviest during the mid-day hours. Paradise will have moderate snow, heaviest in the mid-morning hours. Decreasing moderate winds. |
Mt. Hood
| Wednesday | Light snow becoming moderate in the afternoon. Moderate winds, strong gusts. |
Issued: 6:51 AM PST Wednesday, December 26, 2018
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' | 2000' | 500' | 500' | 1000' | 1500' | 2000' | 2000' |
| Wednesday Afternoon | Snow Level | 2500' | 1500' | 500' | 500' | 1000' | 1500' | 2000' | 2500' |
| Wednesday Evening | Snow Level | 2500' | 1500' | 1000' | 1000' | 1500' | 2000' | 2000' | 2500' |
| Wednesday Night | Snow Level | 1500' | 1500' | 1000' | 1000' | 1500' | 1500' | 1000' | 2000' |
| Thursday Morning | Snow Level | 1000' | 1000' | 500' | 500' | 1000' | 1000' | 1000' | 2000' |
| Thursday Afternoon | Snow Level | 2000' | 1500' | 1000' | 1500' | 1500' | 1500' | 2000' | 2000' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 2500' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 2500' |
| Wednesday Evening |
Snow Level 2500' |
| Wednesday Night |
Snow Level 1500' |
| Thursday Morning |
Snow Level 1000' |
| Thursday Afternoon |
Snow Level 2000' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 2000' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 1500' |
| Wednesday Evening |
Snow Level 1500' |
| Wednesday Night |
Snow Level 1500' |
| Thursday Morning |
Snow Level 1000' |
| Thursday Afternoon |
Snow Level 1500' |
| Washington Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 500' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 500' |
| Wednesday Evening |
Snow Level 1000' |
| Wednesday Night |
Snow Level 1000' |
| Thursday Morning |
Snow Level 500' |
| Thursday Afternoon |
Snow Level 1000' |
| Leavenworth | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 500' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 500' |
| Wednesday Evening |
Snow Level 1000' |
| Wednesday Night |
Snow Level 1000' |
| Thursday Morning |
Snow Level 500' |
| Thursday Afternoon |
Snow Level 1500' |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 1000' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 1000' |
| Wednesday Evening |
Snow Level 1500' |
| Wednesday Night |
Snow Level 1500' |
| Thursday Morning |
Snow Level 1000' |
| Thursday Afternoon |
Snow Level 1500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 1500' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 1500' |
| Wednesday Evening |
Snow Level 2000' |
| Wednesday Night |
Snow Level 1500' |
| Thursday Morning |
Snow Level 1000' |
| Thursday Afternoon |
Snow Level 1500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 2000' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 2000' |
| Wednesday Evening |
Snow Level 2000' |
| Wednesday Night |
Snow Level 1000' |
| Thursday Morning |
Snow Level 1000' |
| Thursday Afternoon |
Snow Level 2000' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 2000' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 2500' |
| Wednesday Evening |
Snow Level 2500' |
| Wednesday Night |
Snow Level 2000' |
| Thursday Morning |
Snow Level 2000' |
| Thursday Afternoon |
Snow Level 2000' |
* 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 | 0.25 | LT 0.10 | 0 |
| Mt Baker Ski Area | 0.50 | LT 0.25 | 0 |
| Washington Pass | 0.25 | LT 0.10 | 0 |
| Leavenworth | LT 0.25 | 0 | 0 |
| Stevens Pass | 0.25 | 0.25 | LT 0.10 |
| Snoqualmie Pass | 0.50 | 0.25 | 0 |
| Mission Ridge | LT 0.25 | LT 0.10 | 0 |
| Crystal Mt | 0.25 | LT 0.25 | LT 0.10 |
| Paradise | 0.75 | 0.25 - 0.50 | 0 |
| White Pass | 0.25 | LT 0.25 | 0 |
| Mt Hood Meadows | 0.50 - 0.75 | 0.50 - 0.75 | LT 0.10 |
| Timberline | 0.75 | 0.75 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday | 0.25 |
| Wednesday Night | LT 0.10 |
| Wednesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday | 0.50 |
| Wednesday Night | LT 0.25 |
| Wednesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0.25 |
| Wednesday Night | LT 0.10 |
| Wednesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.25 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0.25 |
| Wednesday Night | 0.25 |
| Wednesday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0.50 |
| Wednesday Night | 0.25 |
| Wednesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.25 |
| Wednesday Night | LT 0.10 |
| Wednesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday | 0.25 |
| Wednesday Night | LT 0.25 |
| Wednesday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday | 0.75 |
| Wednesday Night | 0.25 - 0.50 |
| Wednesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0.25 |
| Wednesday Night | LT 0.25 |
| Wednesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday | 0.50 - 0.75 |
| Wednesday Night | 0.50 - 0.75 |
| Wednesday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday | 0.75 |
| Wednesday Night | 0.75 |
| 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: 6:51 AM PST Wednesday, December 26, 2018
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Morning | WSW 15 - 25 | SE 15 - 25 | SE 10 - 20 | SSE 15 - 25 | SSW 20 - 30 |
| Wednesday Afternoon | W 15 - 25 | SW 10 - 20 | W 5 - 15 | W 10 - 20 | W 20 - 30 |
| Wednesday Evening | WNW 10 - 20 | WSW 5 - 15 | W 5 - 15 | W 5 - 15 | W 20 - 30 |
| Wednesday Night | NW 10 - 20 | W 5 - 15 | W 10 - 20 | W 10 - 20 | W 20 - 30 |
| Thursday Morning | NW 5 - 15 | VAR 0 - 10 | WNW 5 - 15 | WNW 5 - 15 | WNW 15 - 25 |
| Thursday Afternoon | WNW 5 - 15 | VAR 0 - 10 | W 5 - 15 | W 5 - 15 | W 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Morning | WSW 15 - 25 |
| Wednesday Afternoon | W 15 - 25 |
| Wednesday Evening | WNW 10 - 20 |
| Wednesday Night | NW 10 - 20 |
| Thursday Morning | NW 5 - 15 |
| Thursday Afternoon | WNW 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Morning | SE 15 - 25 |
| Wednesday Afternoon | SW 10 - 20 |
| Wednesday Evening | WSW 5 - 15 |
| Wednesday Night | W 5 - 15 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Morning | SE 10 - 20 |
| Wednesday Afternoon | W 5 - 15 |
| Wednesday Evening | W 5 - 15 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | WNW 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Morning | SSE 15 - 25 |
| Wednesday Afternoon | W 10 - 20 |
| Wednesday Evening | W 5 - 15 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | WNW 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Morning | SSW 20 - 30 |
| Wednesday Afternoon | W 20 - 30 |
| Wednesday Evening | W 20 - 30 |
| Wednesday Night | W 20 - 30 |
| Thursday Morning | WNW 15 - 25 |
| Thursday Afternoon | W 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Morning | WSW 15 - 25 |
| Wednesday Afternoon | W 15 - 25 |
| Wednesday Evening | WNW 10 - 20 |
| Wednesday Night | NW 10 - 20 |
| Thursday Morning | NW 5 - 15 |
| Thursday Afternoon | WNW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Morning | SE 15 - 25 |
| Wednesday Afternoon | SW 10 - 20 |
| Wednesday Evening | WSW 5 - 15 |
| Wednesday Night | W 5 - 15 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Morning | SE 10 - 20 |
| Wednesday Afternoon | W 5 - 15 |
| Wednesday Evening | W 5 - 15 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | WNW 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Morning | SSE 15 - 25 |
| Wednesday Afternoon | W 10 - 20 |
| Wednesday Evening | W 5 - 15 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | WNW 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Morning | SSW 20 - 30 |
| Wednesday Afternoon | W 20 - 30 |
| Wednesday Evening | W 20 - 30 |
| Wednesday Night | W 20 - 30 |
| Thursday Morning | WNW 15 - 25 |
| 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 | WSW 30 - 45 | SW 25 - 35 | WSW 35 - 50 | WSW 45 - 65 | WSW 40 - 60 |
| Wednesday Afternoon | WSW 15 - 25 | W 15 - 25 | WNW 25 - 35 | W 25 - 35 | W 35 - 50 |
| Wednesday Evening | WNW 10 - 20 | WNW 15 - 25 | WNW 25 - 35 | WNW 20 - 30 | WNW 30 - 45 |
| Wednesday Night | N 10 - 20 | N 20 - 30 | NNW 20 - 30 | NNW 30 - 45 | NNW 30 - 45 |
| Thursday Morning | NNW 10 - 20 | NNW 15 - 25 | NNW 15 - 25 | NNW 20 - 30 | NNW 25 - 35 |
| Thursday Afternoon | NW 15 - 25 | NW 15 - 25 | NW 20 - 30 | NNW 25 - 35 | NNW 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Morning | WSW 30 - 45 |
| Wednesday Afternoon | WSW 15 - 25 |
| Wednesday Evening | WNW 10 - 20 |
| Wednesday Night | N 10 - 20 |
| Thursday Morning | NNW 10 - 20 |
| Thursday Afternoon | NW 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Morning | SW 25 - 35 |
| Wednesday Afternoon | W 15 - 25 |
| Wednesday Evening | WNW 15 - 25 |
| Wednesday Night | N 20 - 30 |
| Thursday Morning | NNW 15 - 25 |
| Thursday Afternoon | NW 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Morning | WSW 35 - 50 |
| Wednesday Afternoon | WNW 25 - 35 |
| Wednesday Evening | WNW 25 - 35 |
| Wednesday Night | NNW 20 - 30 |
| Thursday Morning | NNW 15 - 25 |
| Thursday Afternoon | NW 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Morning | WSW 45 - 65 |
| Wednesday Afternoon | W 25 - 35 |
| Wednesday Evening | WNW 20 - 30 |
| Wednesday Night | NNW 30 - 45 |
| Thursday Morning | NNW 20 - 30 |
| Thursday Afternoon | NNW 25 - 35 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Morning | WSW 40 - 60 |
| Wednesday Afternoon | W 35 - 50 |
| Wednesday Evening | WNW 30 - 45 |
| Wednesday Night | NNW 30 - 45 |
| Thursday Morning | NNW 25 - 35 |
| Thursday Afternoon | NNW 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 Dec 25, 2018
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