Issued: 1:53 PM PST Friday, January 14, 2022
by Dallas Glass

Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather

Weather Synopsis

A rather flat high-pressure ridge should bring us generally warm and dry weather for much of the weekend. This feature will create a bit of a divide in conditions from north to south. A storm deflecting north into Canada will allow a chance for isolated showers overnight for locations near Hurricane Ridge and Mt Baker. For other areas in the northern half of the forecast region, this system will only result in increasing clouds and a bit cooler air. Look for wind speeds to increase slightly over the same time period, particularly for more wind-prone sites east of the Cascade crest. Further south, partly clear skies overnight should allow temperature inversions to return despite the high freezing levels. This means you may find trailheads a bit chilly first thing in the morning. On Satruday, expect periods of sunshine interrupted by bands of high clouds as we enjoy another dry day. 

The ridge continues to flatten Satruday night into Sunday, with a similar north-south pattern persisting. You're likely to see slightly cooler weather and cloudier skies further north and fewer clouds with temperature inversions further south. This pattern starts to change slightly on Sunday afternoon as an approaching low-pressure system tries to shove the ridge out of its way. While a few weather models want to bring precipitation into the region by late afternoon and early evening, most hold off on any significant rain and snow until Monday. At the moment, this doesn't look like a big storm. Most of the moisture will push north into Canada, and with warm air already in place across the Pacific Northwest, this could mean most of the precipitation falls as rain with high elevation snow. 

Weather Forecast

Olympics
West North
West Central
West South
Stevens Pass
Snoqualmie Pass
East North
East Central
East South
Mt. Hood
Use dropdown to select your zone
Friday Night Increasing clouds with isolated showers possible after midnight.
Saturday Mostly cloudy with sun breaks and clearing in the afternoon.
Friday Night Increasing clouds with isolated showers possible after midnight. Light to moderate SW winds.
Saturday Isolated showers in the morning. Sun breaks and some clearing possible in the afternoon.
Friday Night Increasing clouds further north, partly cloudy further south. Inversions possible in the mountain valleys and passes. Light to moderate SW winds.
Saturday Mostly cloudy with sun breaks and clearing possible in the afternoon.
Friday Night High clouds particularly north of Hwy 12. Inversions possible in the mountain valleys and passes. Light to moderate W winds increasing slightly overnight.
Saturday Partly to mostly sunny with periods of high clouds. Deceasing winds.
Friday Night High clouds increasing overnight. Inversions possible particularly at and east of the Pass. Light E flow at Pass level decreasing. Light to moderate W-SW ridgetop winds.
Saturday Partly to mostly sunny with periods of high clouds. Light westerly flow at Pass level. Light to moderate WNW winds increasing in the afternoon.
Friday Night Partly cloudy with periods of high clouds. Temperature inversions possible. Light east flow at Pass level decreasing. Light to moderate W-SW ridgetop winds.
Saturday Partly to mostly sunny with bands of high clouds. Light westerly flow at Pass level. WNW ridgetop winds becoming moderate in the afternoon.
Friday Night Increasing clouds particularly near the crest. Isolate showers possible along the Canadian border. Temperature inversions possible. WSW winds becoming light to moderate overnight.
Saturday Partly to mostly sunny with high clouds especially in the morning. Light to moderate W winds.
Friday Night Partly to mostly cloudy especially near and north of the Wenatchee Mts. With periods of high clouds Temperature inversions possible. W winds becoming moderate.
Saturday Partly to mostly sunny with bands of high clouds. Moderate W winds decreasing slightly in the afternoon.
Friday Night Mostly clear with a few high clouds. Temperature inversions possible. W winds becoming moderate.
Saturday Mostly sunny with passing bands of high clouds. Moderate W winds decreasing in the afternoon.
Friday Night Partly to mostly clear with bands of high clouds. Temperature inversions possible.
Saturday Partly to mostly sunny with bands of high clouds. Light to moderate W winds decreasing in the afternoon.

Precipitation (in)

Friday Night Saturday Saturday Night Sunday
4 pm - 4 am 4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge LT 0.10 0 0 0
Mt Baker Ski Area LT 0.10 LT 0.10 0 LT 0.10
Mt. Loop - Barlow Pass 0 0 0 0
Stevens Pass 0 0 0 0
Snoqualmie Pass 0 0 0 0
Crystal Mt 0 0 0 0
Paradise 0 0 0 0
White Pass 0 0 0 LT 0.10
Washington Pass 0 0 0 0
Mission Ridge 0 0 0 0
Salmon la Sac - Gallagher Head 0 0 0 0
Tieton River - Darland Mt. 0 0 0 0
Mt Hood Meadows 0 0 0 0
Timberline 0 0 0 0
Hurricane Ridge Precipitation (in)
Friday Night LT 0.10
Saturday 0
Saturday Night 0
Sunday 0
Mt Baker Ski Area Precipitation (in)
Friday Night LT 0.10
Saturday LT 0.10
Saturday Night 0
Sunday LT 0.10
Mt. Loop - Barlow Pass Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Stevens Pass Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Snoqualmie Pass Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Crystal Mt Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Paradise Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
White Pass Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday LT 0.10
Washington Pass Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Mission Ridge Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Salmon la Sac - Gallagher Head Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Tieton River - Darland Mt. Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Mt Hood Meadows Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0
Timberline Precipitation (in)
Friday Night 0
Saturday 0
Saturday Night 0
Sunday 0

Snow Level (ft)

Friday Evening* Friday Night* Saturday Morning Saturday Afternoon Saturday Evening Saturday Night Sunday Morning* Sunday Afternoon*
Olympics 8500' 7000' 7000' 7000' 7500' 8000' 8500' 8500'
West North 6500' 5000' 5000' 5000' 4000' 4500' 6500' 7000'
West Central 7000' 6000' 6000' 6000' 5500' 6000' 7500' 8000'
West South 7500' 6500' 7000' 8000' 7000' 7000' 7500' 9000'
Stevens Pass 6500' 6000' 6000' 6000' 5500' 6000' 7500' 8500'
Snoqualmie Pass 6500' 6000' 6000' 6500' 6000' 6500' 7500' 8500'
East North 6000' 5000' 5000' 5500' 4500' 4500' 6000' 7000'
East Central 6000' 6000' 6000' 7000' 6500' 6000' 6500' 8000'
East South 6500' 6500' 7500' 8000' 7500' 7500' 7500' 9000'
Mt. Hood 8000' 8000' 8500' 9500' 9500' 9000' 8500' 9500'
Olympics Elevation
Friday Evening* 8500'
Friday Night* 7000'
Saturday Morning 7000'
Saturday Afternoon 7000'
Saturday Evening 7500'
Saturday Night 8000'
Sunday Morning* 8500'
Sunday Afternoon* 8500'
West North Elevation
Friday Evening* 6500'
Friday Night* 5000'
Saturday Morning 5000'
Saturday Afternoon 5000'
Saturday Evening 4000'
Saturday Night 4500'
Sunday Morning* 6500'
Sunday Afternoon* 7000'
West Central Elevation
Friday Evening* 7000'
Friday Night* 6000'
Saturday Morning 6000'
Saturday Afternoon 6000'
Saturday Evening 5500'
Saturday Night 6000'
Sunday Morning* 7500'
Sunday Afternoon* 8000'
West South Elevation
Friday Evening* 7500'
Friday Night* 6500'
Saturday Morning 7000'
Saturday Afternoon 8000'
Saturday Evening 7000'
Saturday Night 7000'
Sunday Morning* 7500'
Sunday Afternoon* 9000'
Stevens Pass Elevation
Friday Evening* 6500'
Friday Night* 6000'
Saturday Morning 6000'
Saturday Afternoon 6000'
Saturday Evening 5500'
Saturday Night 6000'
Sunday Morning* 7500'
Sunday Afternoon* 8500'
Snoqualmie Pass Elevation
Friday Evening* 6500'
Friday Night* 6000'
Saturday Morning 6000'
Saturday Afternoon 6500'
Saturday Evening 6000'
Saturday Night 6500'
Sunday Morning* 7500'
Sunday Afternoon* 8500'
East North Elevation
Friday Evening* 6000'
Friday Night* 5000'
Saturday Morning 5000'
Saturday Afternoon 5500'
Saturday Evening 4500'
Saturday Night 4500'
Sunday Morning* 6000'
Sunday Afternoon* 7000'
East Central Elevation
Friday Evening* 6000'
Friday Night* 6000'
Saturday Morning 6000'
Saturday Afternoon 7000'
Saturday Evening 6500'
Saturday Night 6000'
Sunday Morning* 6500'
Sunday Afternoon* 8000'
East South Elevation
Friday Evening* 6500'
Friday Night* 6500'
Saturday Morning 7500'
Saturday Afternoon 8000'
Saturday Evening 7500'
Saturday Night 7500'
Sunday Morning* 7500'
Sunday Afternoon* 9000'
Mt. Hood Elevation
Friday Evening* 8000'
Friday Night* 8000'
Saturday Morning 8500'
Saturday Afternoon 9500'
Saturday Evening 9500'
Saturday Night 9000'
Sunday Morning* 8500'
Sunday Afternoon* 9500'

5000' Temperatures (°F)

Friday Night Saturday
Max / Min Max / Min
Olympics 38 / 31 40 / 31
West North 36 / 29 39 / 29
West Central 37 / 30 39 / 31
West South 38 / 30 40 / 30
Stevens Pass 37 / 29 39 / 29
Snoqualmie Pass 37 / 30 39 / 30
East North 32 / 21 38 / 27
East Central 38 / 28 38 / 29
East South 37 / 30 39 / 30
Mt. Hood 39 / 39 41 / 32
Olympics 5000' Temperature Forecast
(Max / Min)
Friday Night 38 / 31
Saturday 40 / 31
West North 5000' Temperature Forecast
(Max / Min)
Friday Night 36 / 29
Saturday 39 / 29
West Central 5000' Temperature Forecast
(Max / Min)
Friday Night 37 / 30
Saturday 39 / 31
West South 5000' Temperature Forecast
(Max / Min)
Friday Night 38 / 30
Saturday 40 / 30
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Friday Night 37 / 29
Saturday 39 / 29
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Friday Night 37 / 30
Saturday 39 / 30
East North 5000' Temperature Forecast
(Max / Min)
Friday Night 32 / 21
Saturday 38 / 27
East Central 5000' Temperature Forecast
(Max / Min)
Friday Night 38 / 28
Saturday 38 / 29
East South 5000' Temperature Forecast
(Max / Min)
Friday Night 37 / 30
Saturday 39 / 30
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Friday Night 39 / 39
Saturday 41 / 32

Ridgeline Winds (mph)

Friday Evening Friday Night Saturday Morning Saturday Afternoon
Olympics SW 5-15 W 5-15 W 5-15 WNW 5-15
West North SW 10-20 WSW 10-20 WSW 5-15 W 5-15
West Central SW 10-20 WSW 10-20 WNW 5-15 WNW 5-15
West South WSW 5-15 W 10-20 W 5-15 NW 0-10
Stevens Pass SW 10-20 W 10-20 WNW 5-15 WNW 10-20
Snoqualmie Pass SW 10-20 W 10-20 WNW 5-15 WNW 10-20
East North WSW 5-15 WSW 10-20 W 10-20 W 10-20
East Central W 10-20 W 15-25 W 15-25 WNW 10-20
East South W 10-20 W 15-25 W 15-25 WNW 5-15
Mt. Hood W 0-10 W 5-15 W 10-20 WNW 5-15
Olympics Ridgeline Winds (mph)
Friday Evening SW 5-15
Friday Night W 5-15
Saturday Morning W 5-15
Saturday Afternoon WNW 5-15
West North Ridgeline Winds (mph)
Friday Evening SW 10-20
Friday Night WSW 10-20
Saturday Morning WSW 5-15
Saturday Afternoon W 5-15
West Central Ridgeline Winds (mph)
Friday Evening SW 10-20
Friday Night WSW 10-20
Saturday Morning WNW 5-15
Saturday Afternoon WNW 5-15
West South Ridgeline Winds (mph)
Friday Evening WSW 5-15
Friday Night W 10-20
Saturday Morning W 5-15
Saturday Afternoon NW 0-10
Stevens Pass Ridgeline Winds (mph)
Friday Evening SW 10-20
Friday Night W 10-20
Saturday Morning WNW 5-15
Saturday Afternoon WNW 10-20
Snoqualmie Pass Ridgeline Winds (mph)
Friday Evening SW 10-20
Friday Night W 10-20
Saturday Morning WNW 5-15
Saturday Afternoon WNW 10-20
East North Ridgeline Winds (mph)
Friday Evening WSW 5-15
Friday Night WSW 10-20
Saturday Morning W 10-20
Saturday Afternoon W 10-20
East Central Ridgeline Winds (mph)
Friday Evening W 10-20
Friday Night W 15-25
Saturday Morning W 15-25
Saturday Afternoon WNW 10-20
East South Ridgeline Winds (mph)
Friday Evening W 10-20
Friday Night W 15-25
Saturday Morning W 15-25
Saturday Afternoon WNW 5-15
Mt. Hood Ridgeline Winds (mph)
Friday Evening W 0-10
Friday Night W 5-15
Saturday Morning W 10-20
Saturday Afternoon WNW 5-15

Extended Weather Synopsis

A storm pushing up against a flat high-pressure ridge should finally bring rain and high elevation snow to the mountains. The bulk of the precipitation should fall in the northern half of the region late Sunday night and into Monday. However, weather models disagree about the timing and strength of this storm. A few try to bring more significant moisture into the region, but we'll have to wait and see how this plays out. The flat or "dirty" ridge seems to bounce back quickly after Monday's storm. Weather models again differ as the ridge tries to strengthen. What does appear clear is that we're in for relatively warm weather with at least some clouds and a chance of precipitation. 

Extended Snow Level (ft)

Sunday Night Monday Monday Night Tuesday
West North 6500' 5500' 4500' 4500'
Snoqualmie Pass 8000' 7000' 6000' 5500'
Mt. Hood 9000' 9000' 8000' 6500'
West North Elevation
Sunday Night 6500'
Monday 5500'
Monday Night 4500'
Tuesday 4500'
Snoqualmie Pass Elevation
Sunday Night 8000'
Monday 7000'
Monday Night 6000'
Tuesday 5500'
Mt. Hood Elevation
Sunday Night 9000'
Monday 9000'
Monday Night 8000'
Tuesday 6500'

Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather

Previous forecast from Jan 14, 2022

The NWAC program is administered by the USDA-Forest Service and operates from the National Weather Service Forecast Office in Seattle. NWAC services are made possible by important collaboration and support from a wide variety of federal, state and private cooperators.

The 5000’ temperature forecast does not imply a trend over the 12 hr period and only represents the max and min temperatures within a 12 hr period in the zone. The 6-hr snow level forecast, the forecast discussion, and weather forecast sections may add detail regarding temperature trends.

The snow level forecast represents the general snow level over a 6 hr time period. Freezing levels are forecast when precipitation is not expected.

*Easterly or offshore flow is highlighted with an asterisk when we expect relatively cool east winds in the major Cascade Passes. Easterly flow will often lead to temperature inversions and is a key variable for forecasting precipitation type in the Cascade Passes. Strong easterly flow events can affect terrain on a more regional scale.

Ridgeline winds are the average wind speed and direction over a 6 hr time period.

The wind forecast represents an elevation range instead of a single elevation slice. The elevation range overlaps with the near and above treeline elevation bands in the avalanche forecast and differs per zone.

Wind direction indicates the direction the wind originates or comes from on the 16-point compass rose.

Water Equivalent (WE) is the liquid water equivalent of all precipitation types; rain, snow, ice pellets, etc., forecast to the hundredth of an inch at specific locations. To use WE as a proxy for snowfall amounts, start with a snow to water ratio of 10:1 (10 inches of snow = 1 inch WE). Temperatures at or near freezing will generally have a lower ratio (heavy wet snow) and very cold temperatures can have a much higher ratio (dry fluffy snow).

The label LT, is shorthand for ‘less than’.

Updated Mountain Weather Zone Name Changes – December 2020