Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Friday & Friday
The weather will be much quieter today. A weak disturbance offshore this morning will undercut weak upper level ridging, amounting to little more than a mix of low and high clouds for all areas along with isolated showers for the west slopes of the Cascades and Olympics. Snow levels have dropped to 1000-2000 ft across the region behind yesterday's front. Blustery west winds seen overnight and early this morning at many locations will ramp down by mid-day.
A weak frontal boundary will weaken and stall over the Olympics and the far northwest Cascades Friday night and Saturday morning. A somewhat stronger N-S oriented frontal boundary will approach Saturday afternoon, spreading light rain and snow inland late in the day. Expect cloud ceilings to lower for the Cascades in the afternoon with an uptick in winds as the front approaches.
Weather Forecast
Hurricane Ridge
| Friday | Mostly cloudy with a mix of low and high clouds. Isolated light snow showers. |
Mt. Baker
| Friday | Mostly cloudy with a mix of low and high clouds. Isolated light snow showers. |
Washington Pass and Leavenworth
| Friday | Mostly cloudy with a mix of low and high clouds. Isolated light snow showers near the Cascade crest. Gusty west winds this morning decreasing by mid-day. |
Stevens and Snoqualmie Pass
| Friday | Mostly cloudy with a mix of low and high clouds. Isolated light snow showers. Gusty west winds this morning decreasing by mid-day. |
Mt. Rainier, Crystal and White Pass
| Friday | Mostly cloudy with a mix of low and high clouds. Isolated light snow showers. Gusty west winds this morning decreasing by mid-day. |
Mt. Hood
| Friday | Mostly cloudy with a mix of low and high clouds. Isolated light snow showers. Gusty west winds this morning decreasing by mid-day. |
Issued: 6:51 AM PST Friday, December 21, 2018
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday Morning | Snow Level | 1500' | 1000' | 1000' | 1500' | 1000' | 1000' | 1500' | 2000' |
| Friday Afternoon | Snow Level | 2000' | 1500' | 1000' | 1500' | 1500' | 1500' | 2000' | 2000' |
| Friday Evening | Snow Level | 2000' | 1500' | 1000' | 1000' | 1500' | 1500' | 2000' | 2000' |
| Friday Night | Snow Level | 2500' | 1500' | 0' | 1000' | 1500' | 1500' | 2000' | 2000' |
| Saturday Morning | Snow Level * | 3500' | 2000' | 1000' | 1500' | 2500' | 2000' | 3000' | 3500' |
| Saturday Afternoon | Snow Level * | 4000' | 2500' | 1500' | 1500' | 2500' | 2000' | 3000' | 4000' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning |
Snow Level 1500' |
| Friday Afternoon |
Snow Level 2000' |
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 2500' |
| Saturday Morning |
Snow Level 3500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning |
Snow Level 1000' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Evening |
Snow Level 1500' |
| Friday Night |
Snow Level 1500' |
| Saturday Morning |
Snow Level 2000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 2500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 1000' |
| Friday Afternoon |
Snow Level 1000' |
| Friday Evening |
Snow Level 1000' |
| Friday Night |
Snow Level 0' |
| Saturday Morning |
Snow Level 1000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Friday Morning |
Snow Level 1500' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Evening |
Snow Level 1000' |
| Friday Night |
Snow Level 1000' |
| Saturday Morning |
Snow Level 1500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 1000' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Evening |
Snow Level 1500' |
| Friday Night |
Snow Level 1500' |
| Saturday Morning |
Snow Level 2500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 2500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 1000' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Evening |
Snow Level 1500' |
| Friday Night |
Snow Level 1500' |
| Saturday Morning |
Snow Level 2000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 2000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Morning |
Snow Level 1500' |
| Friday Afternoon |
Snow Level 2000' |
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 3000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning |
Snow Level 2000' |
| Friday Afternoon |
Snow Level 2000' |
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 3500' (Easterly Flow *) |
| Saturday Afternoon |
Snow 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
| Friday | Friday Night | Friday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | LT 0.25 | 0.25 |
| Mt Baker Ski Area | LT 0.10 | LT 0.25 | 0.25 - 0.50 |
| Washington Pass | LT 0.10 | LT 0.10 | LT 0.10 |
| Leavenworth | 0 | 0 | LT 0.10 |
| Stevens Pass | LT 0.10 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | LT 0.10 | LT 0.10 | LT 0.10 |
| Mission Ridge | 0 | 0 | LT 0.10 |
| Crystal Mt | LT 0.10 | LT 0.10 | LT 0.10 |
| Paradise | LT 0.10 | LT 0.10 | LT 0.10 |
| White Pass | LT 0.10 | LT 0.10 | LT 0.10 |
| Mt Hood Meadows | LT 0.10 | 0 | LT 0.10 |
| Timberline | LT 0.10 | 0 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.25 |
| Friday | 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.25 |
| Friday | 0.25 - 0.50 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | 0 |
| Friday | 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 Friday, December 21, 2018
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Morning | W 10 - 20 | SW 5 - 15 | W 15 - 30 | W 15 - 30 | W 15 - 25 |
| Friday Afternoon | W 5 - 15 | SW 0 - 10 | W 10 - 20 | W 5 - 15 | W 10 - 20 |
| Friday Evening | SW 0 - 10 | S 0 - 10 | W 5 - 15 | W 0 - 10 | W 5 - 15 |
| Friday Night | S 5 - 15 | SE 0 - 10 | VAR 0 - 10 | SW 0 - 10 | SW 0 - 10 |
| Saturday Morning | S 10 - 20 | SE 5 - 15 | SE 5 - 15 | S 0 - 10 | SE 5 - 15 |
| Saturday Afternoon | S 25 - 35 | SE 15 - 25 | SE 10 - 20 | SE 15 - 25 | S 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning | W 10 - 20 |
| Friday Afternoon | W 5 - 15 |
| Friday Evening | SW 0 - 10 |
| Friday Night | S 5 - 15 |
| Saturday Morning | S 10 - 20 |
| Saturday Afternoon | S 25 - 35 |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | SW 0 - 10 |
| Friday Evening | S 0 - 10 |
| Friday Night | SE 0 - 10 |
| Saturday Morning | SE 5 - 15 |
| Saturday Afternoon | SE 15 - 25 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning | W 15 - 30 |
| Friday Afternoon | W 10 - 20 |
| Friday Evening | W 5 - 15 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | SE 5 - 15 |
| Saturday Afternoon | SE 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Morning | W 15 - 30 |
| Friday Afternoon | W 5 - 15 |
| Friday Evening | W 0 - 10 |
| Friday Night | SW 0 - 10 |
| Saturday Morning | S 0 - 10 |
| Saturday Afternoon | SE 15 - 25 |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning | W 15 - 25 |
| Friday Afternoon | W 10 - 20 |
| Friday Evening | W 5 - 15 |
| Friday Night | SW 0 - 10 |
| Saturday Morning | SE 5 - 15 |
| Saturday Afternoon | S 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Morning | W 10 - 20 |
| Friday Afternoon | W 5 - 15 |
| Friday Evening | SW 0 - 10 |
| Friday Night | S 5 - 15 |
| Saturday Morning | S 10 - 20 |
| Saturday Afternoon | S 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | SW 0 - 10 |
| Friday Evening | S 0 - 10 |
| Friday Night | SE 0 - 10 |
| Saturday Morning | SE 5 - 15 |
| Saturday Afternoon | SE 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | W 15 - 30 |
| Friday Afternoon | W 10 - 20 |
| Friday Evening | W 5 - 15 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | SE 5 - 15 |
| Saturday Afternoon | SE 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | W 15 - 30 |
| Friday Afternoon | W 5 - 15 |
| Friday Evening | W 0 - 10 |
| Friday Night | SW 0 - 10 |
| Saturday Morning | S 0 - 10 |
| Saturday Afternoon | SE 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | W 15 - 25 |
| Friday Afternoon | W 10 - 20 |
| Friday Evening | W 5 - 15 |
| Friday Night | SW 0 - 10 |
| Saturday Morning | SE 5 - 15 |
| Saturday Afternoon | S 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 | |
|---|---|---|---|---|---|
| Friday Morning | W 25 - 35 | W 30 - 40 | NW 30 - 40 | WNW 25 - 40 | WNW 25 - 35 |
| Friday Afternoon | W 15 - 25 | W 15 - 25 | WNW 25 - 35 | WNW 20 - 30 | WNW 20 - 30 |
| Friday Evening | W 15 - 25 | W 15 - 25 | WNW 20 - 30 | WNW 20 - 30 | NW 20 - 30 |
| Friday Night | SW 20 - 30 | W 20 - 30 | W 30 - 40 | W 20 - 30 | NW 20 - 30 |
| Saturday Morning | SW 15 - 25 | SW 10 - 20 | SW 15 - 25 | SW 15 - 25 | SW 10 - 20 |
| Saturday Afternoon | S 30 - 40 | SSW 20 - 30 | SW 25 - 35 | SW 35 - 45 | SW 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | W 25 - 35 |
| Friday Afternoon | W 15 - 25 |
| Friday Evening | W 15 - 25 |
| Friday Night | SW 20 - 30 |
| Saturday Morning | SW 15 - 25 |
| Saturday Afternoon | S 30 - 40 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Morning | W 30 - 40 |
| Friday Afternoon | W 15 - 25 |
| Friday Evening | W 15 - 25 |
| Friday Night | W 20 - 30 |
| Saturday Morning | SW 10 - 20 |
| Saturday Afternoon | SSW 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | NW 30 - 40 |
| Friday Afternoon | WNW 25 - 35 |
| Friday Evening | WNW 20 - 30 |
| Friday Night | W 30 - 40 |
| Saturday Morning | SW 15 - 25 |
| Saturday Afternoon | SW 25 - 35 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | WNW 25 - 40 |
| Friday Afternoon | WNW 20 - 30 |
| Friday Evening | WNW 20 - 30 |
| Friday Night | W 20 - 30 |
| Saturday Morning | SW 15 - 25 |
| Saturday Afternoon | SW 35 - 45 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | WNW 25 - 35 |
| Friday Afternoon | WNW 20 - 30 |
| Friday Evening | NW 20 - 30 |
| Friday Night | NW 20 - 30 |
| Saturday Morning | SW 10 - 20 |
| Saturday Afternoon | SW 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 20, 2018
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