Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Friday night through Friday
Any lingering showers should come to an end Friday evening as a high-pressure ridge builds off the coast and helps the region dry. The trickiest part of this forecast could be the overnight cloud cover. With moisture leftover near the surface, you could find low-level clouds and/or fog in mountain valleys and passes.
Saturday looks dry in nearly all locations as the high-pressure drifts east. An approaching system will spread clouds across the region. Look for cloud cover to increase and thicken during the day. Your best chance for a sun break could be in the morning or in locations east of the Cascade crest. Precipitation should be held offshore, possibly sliding into the Olympics late in the afternoon. Warm air will push into the western and southern portions of the region increasing temperatures and raising freezing levels. Cold air should stay established east of the Cascades. Expect a cool easterly flow to develop through the passes with locally lower freezing levels.
Precipitation will spread across the area Saturday night and Sunday. This isn't a particularly wet storm and it seems to fall apart as it pushes onshore. Expect rain and snow showers with light accumulations. Right now, the passes appear to stay all snow with cool east flow, but there could be a few moments of mixed precipitation at Snoqualmie Pass.
Weather Forecast
Hurricane Ridge
| Friday Night | Partly cloudy. Warming. |
| Saturday | Cloudy. A chance of showers in the afternoon. Moderate southwest winds. |
Mt. Baker
| Friday Night | Mostly cloudy. Low-level clouds possible. |
| Saturday | Becoming cloudy. Winds increasing in the afternoon. |
Washington Pass and Leavenworth
| Friday Night | Partly to mostly cloudy. Potential for low-level clouds and fog near the crest. Light westerly winds. |
| Saturday | Clouds increasing. |
Stevens and Snoqualmie Pass
| Friday Night | Mostly cloudy with the potential for low-level clouds and/or fog near the pass. Pass level winds light out of the west. |
| Saturday | Clouds increasing. Easterly flow developing in the morning keeping Pass elevations colder. |
Mt. Rainier, Crystal and White Pass
| Friday Night | Partly to mostly cloudy with the possibility for low-level clouds and valley fog. |
| Saturday | Becoming cloudy. Warming trend. |
Mt. Hood
| Friday Night | Mostly cloudy with low clouds possible. Winds decreasing overnight. |
| Saturday | Clouds increasing. Warming. |
Issued: 1:32 PM PST Friday, December 27, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday Evening | Freezing Level | 3500' | 2500' | 2000' | 2000' | 2000' | 2500' | 3000' | 3000' |
| Friday Night | Freezing Level | 4000' | 2000' | 1500' | 1500' | 2000' | 2500' | 3000' | 3500' |
| Saturday Morning | Freezing Level * | 5500' | 2500' | 2000' | 2000' | 2500' | 3500' | 4000' | 5000' |
| Saturday Afternoon | Freezing Level * | 5500' | 3500' | 2500' | 2500' | 3500' | 4500' | 5500' | 6000' |
| Saturday Evening | Snow Level * | 5000' | 3000' | 2500' | 2000' | 3000' | 3000' | 4000' | 4500' |
| Saturday Night | Snow Level * | 5000' | 3000' | 2500' | 1500' | 3000' | 3000' | 4000' | 4500' |
| Sunday Morning | Snow Level * | 4500' | 3500' | 2500' | 1500' | 3000' | 3000' | 4000' | 4500' |
| Sunday Afternoon | Snow Level * | 4500' | 4000' | 3000' | 2000' | 3000' | 3000' | 4000' | 4500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening |
Freezing Level 3500' |
| Friday Night |
Freezing Level 4000' |
| Saturday Morning |
Freezing Level 5500' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 5500' (Easterly Flow *) |
| Saturday Evening |
Snow Level 5000' (Easterly Flow *) |
| Saturday Night |
Snow Level 5000' (Easterly Flow *) |
| Sunday Morning |
Snow Level 4500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 4500' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening |
Freezing Level 2500' |
| Friday Night |
Freezing Level 2000' |
| Saturday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Saturday Evening |
Snow Level 3000' (Easterly Flow *) |
| Saturday Night |
Snow Level 3000' (Easterly Flow *) |
| Sunday Morning |
Snow Level 3500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 2000' |
| Friday Night |
Freezing Level 1500' |
| Saturday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Saturday Evening |
Snow Level 2500' (Easterly Flow *) |
| Saturday Night |
Snow Level 2500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 2500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Friday Evening |
Freezing Level 2000' |
| Friday Night |
Freezing Level 1500' |
| Saturday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Saturday Evening |
Snow Level 2000' (Easterly Flow *) |
| Saturday Night |
Snow Level 1500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 1500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 2000' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 2000' |
| Friday Night |
Freezing Level 2000' |
| Saturday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Saturday Evening |
Snow Level 3000' (Easterly Flow *) |
| Saturday Night |
Snow Level 3000' (Easterly Flow *) |
| Sunday Morning |
Snow Level 3000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 2500' |
| Friday Night |
Freezing Level 2500' |
| Saturday Morning |
Freezing Level 3500' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 4500' (Easterly Flow *) |
| Saturday Evening |
Snow Level 3000' (Easterly Flow *) |
| Saturday Night |
Snow Level 3000' (Easterly Flow *) |
| Sunday Morning |
Snow Level 3000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Evening |
Freezing Level 3000' |
| Friday Night |
Freezing Level 3000' |
| Saturday Morning |
Freezing Level 4000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 5500' (Easterly Flow *) |
| Saturday Evening |
Snow Level 4000' (Easterly Flow *) |
| Saturday Night |
Snow Level 4000' (Easterly Flow *) |
| Sunday Morning |
Snow Level 4000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening |
Freezing Level 3000' |
| Friday Night |
Freezing Level 3500' |
| Saturday Morning |
Freezing Level 5000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 6000' (Easterly Flow *) |
| Saturday Evening |
Snow Level 4500' (Easterly Flow *) |
| Saturday Night |
Snow Level 4500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 4500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 4500' (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 Night | Friday | Friday Night | Friday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | LT 0.25 | LT 0.10 |
| Mt Baker Ski Area | 0 | 0 | LT 0.25 | LT 0.10 |
| Washington Pass | 0 | 0 | LT 0.10 | LT 0.10 |
| Leavenworth | 0 | 0 | 0 | LT 0.10 |
| Stevens Pass | 0 | 0 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | 0 | 0 | LT 0.10 | LT 0.10 |
| Mission Ridge | 0 | 0 | 0 | LT 0.10 |
| Crystal Mt | 0 | 0 | LT 0.10 | LT 0.10 |
| Paradise | 0 | 0 | LT 0.10 | LT 0.10 |
| White Pass | 0 | 0 | LT 0.10 | LT 0.10 |
| Mt Hood Meadows | 0 | 0 | LT 0.10 | LT 0.10 |
| Timberline | 0 | 0 | LT 0.10 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | LT 0.10 |
| Friday Night | LT 0.25 |
| Friday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.25 |
| Friday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| 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: 1:32 PM PST Friday, December 27, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Evening | WNW 5 - 15 | W 5 - 15 | W 5 - 15 | WNW 5 - 15 | NW 10 - 20 |
| Friday Night | W 5 - 15 | SW 5 - 15 | W 5 - 15 | WNW 5 - 15 | NW 5 - 15 |
| Saturday Morning | SW 10 - 20 | SW 5 - 15 | W 5 - 15 | WNW 5 - 15 | W 5 - 15 |
| Saturday Afternoon | SW 10 - 20 | SW 10 - 20 | W 5 - 15 | W 5 - 15 | W 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening | WNW 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | SW 10 - 20 |
| Saturday Afternoon | SW 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | SW 5 - 15 |
| Saturday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Evening | WNW 5 - 15 |
| Friday Night | WNW 5 - 15 |
| Saturday Morning | WNW 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening | NW 10 - 20 |
| Friday Night | NW 5 - 15 |
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Evening | WNW 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | SW 10 - 20 |
| Saturday Afternoon | SW 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | SW 5 - 15 |
| Saturday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | WNW 5 - 15 |
| Friday Night | WNW 5 - 15 |
| Saturday Morning | WNW 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | NW 10 - 20 |
| Friday Night | NW 5 - 15 |
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 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 | |
|---|---|---|---|---|---|
| Friday Evening | NW 25 - 35 | NW 20 - 30 | NW 35 - 45 | NNW 35 - 45 | NNW 35 - 45 |
| Friday Night | NW 20 - 30 | NW 20 - 30 | NNW 30 - 40 | NNW 30 - 40 | NNW 30 - 40 |
| Saturday Morning | NW 20 - 30 | NNW 20 - 30 | NW 30 - 40 | NW 25 - 35 | NW 25 - 35 |
| Saturday Afternoon | W 20 - 30 | W 20 - 30 | WNW 30 - 40 | W 25 - 35 | WNW 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | NW 25 - 35 |
| Friday Night | NW 20 - 30 |
| Saturday Morning | NW 20 - 30 |
| Saturday Afternoon | W 20 - 30 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Evening | NW 20 - 30 |
| Friday Night | NW 20 - 30 |
| Saturday Morning | NNW 20 - 30 |
| Saturday Afternoon | W 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | NW 35 - 45 |
| Friday Night | NNW 30 - 40 |
| Saturday Morning | NW 30 - 40 |
| Saturday Afternoon | WNW 30 - 40 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | NNW 35 - 45 |
| Friday Night | NNW 30 - 40 |
| Saturday Morning | NW 25 - 35 |
| Saturday Afternoon | W 25 - 35 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | NNW 35 - 45 |
| Friday Night | NNW 30 - 40 |
| Saturday Morning | NW 25 - 35 |
| Saturday Afternoon | WNW 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.
Issued: 1:32 PM PST Friday, December 27, 2019
Extended Weather Synopsis for Friday night through Friday
The weak weather system exits the region Sunday night with a few lingering showers. Drier conditions should prevail Monday as a shortlived high-pressure ridge builds across the northwest. The models continue to show a pattern change New Year's Eve as a series of weather systems impact our area. At the moment, there's quite a bit of uncertainty around snow levels and precipitation. Keep an eye on this weather change over the next several days.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Sunday Night | Snow Level | 1500' - 3000' | 2000' - 3500' | 2000' - 3500' | * |
| Monday | Freezing Level | 2500' - 4000' | 3000' - 4500' | 4000' - 5500' | * |
| Monday Night | Freezing Level | 2500' - 4000' | 3500' - 4500' | 3500' - 5000' | |
| Tuesday | Snow Level | 2500' - 3500' | 3000' - 4000' | 3000' - 4500' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Night |
Snow Level 1500' - 3000' (Easterly Flow *) |
| Monday |
Freezing Level 2500' - 4000' (Easterly Flow *) |
| Monday Night |
Freezing Level 2500' - 4000' |
| Tuesday |
Snow Level 2500' - 3500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Night |
Snow Level 2000' - 3500' (Easterly Flow *) |
| Monday |
Freezing Level 3000' - 4500' (Easterly Flow *) |
| Monday Night |
Freezing Level 3500' - 4500' |
| Tuesday |
Snow Level 3000' - 4000' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Night |
Snow Level 2000' - 3500' (Easterly Flow *) |
| Monday |
Freezing Level 4000' - 5500' (Easterly Flow *) |
| Monday Night |
Freezing Level 3500' - 5000' |
| Tuesday |
Snow Level 3000' - 4500' |
* 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Previous forecast from Dec 27, 2019
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