Issued: 6:50 AM PST Friday, January 14, 2022
by Dallas Glass

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

Weather Synopsis

It should be a pretty nice day in the mountains with plenty of sunshine, warm temperatures, and generally light winds. We're off to a relatively warm start this morning. Most of our weather stations up and down the mountains show readings at or near freezing. Temperature inversions and some patchy fog/low clouds formed in many of the mountain valleys and passes. This could linger into the morning, but warmer air will eventually win and send our freezing levels climbing. Freezing levels should peak mid-day between 7000 and 9500 ft before dipping slightly overnight and into Saturday. A weather system approaching well to our north will spread a few bands of high clouds across the skies, but generally, you should see sunshine throughout the day. 

The high-pressure ridge responsible for this warm and dry weather should flatten and shift further east overnight ahead of an approaching disturbance. While the ridge will deflect the storm north of our region, a few stray showers may clip the northern half of the Olympics and mountains close to the Canadian border late Friday night and early Sunday morning. Most locations will remain dry, and this system will bring little more than increasing clouds and light to moderate winds. Expect another night of temperature inversions, especially south of I90, prior to yet another warm and dry day Saturday. 

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 Mostly sunny and warm. Passing bands of high clouds. Increasing SW winds in the afternoon.
Friday Night Becoming cloudy and mild. Isolated showers possible after midnight. SW winds decreasing slightly.
Friday Mostly sunny and warm. Passing bands of high clouds. Light to occasionally moderate SSW winds developing mid-morning.
Friday Night Becoming cloudy with isolated showers possible after midnight. Light to moderate SW winds.
Friday Mostly sunny and warm. Passing bands of high clouds.
Friday Night Partly to mostly cloudy and mild. Temperature inversions possible the mountain valleys and passes.
Friday Mostly sunny and warm. Passing bands of high clouds.
Friday Night Partly cloudy to mostly clear. Temperature inversions in the mountain valleys and passes. WSW winds increasing overnight.
Friday Mostly sunny and warm. Passing bands of high clouds. Light easterly flow at Pass level.
Friday Night Partly cloudy with increasing high clouds. Temperature inversions possible. Light easterly flow ending in the early morning hours.
Friday Mostly sunny and warm. Passing bands of high clouds. Light easterly flow at Pass level.
Friday Night Mostly clear with periods of high clouds. Temperature inversions possible. Light easterly flow becoming west overnight.
Friday Mostly sunny and mild. Passing bands of high clouds.
Friday Night Partly to mostly cloudy with increasing clouds. A few stray showers possible after midnight close to the Canadian border. WSW increasing slightly.
Friday Mostly sunny and warm. Passing bands of high clouds. WSW winds increasing slightly in the afternoon.
Friday Night Partly cloudy in the north. Mostly clear in the south. Temperature inversions possible. Moderate W winds developing overnight.
Friday Mostly sunny and warm. Passing bands of high clouds.
Friday Night Mostly clear with some high clouds. Temperature inversions possible. W winds increasing overnight.
Friday Mostly sunny and warm. A few high clouds possible.
Friday Night Mostly clear and mild. Temperature inversions possible.

Precipitation (in)

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

Snow Level (ft)

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

5000' Temperatures (°F)

Friday Friday Night
Max / Min Max / Min
Olympics 38 / 33 36 / 31
West North 37 / 30 32 / 30
West Central 38 / 31 32 / 26
West South 39 / 30 32 / 26
Stevens Pass 39 / 31 29 / 20
Snoqualmie Pass 38 / 34 29 / 24
East North 37 / 27 26 / 21
East Central 39 / 30 31 / 21
East South 39 / 30 37 / 25
Mt. Hood 39 / 29 30 / 27
Olympics 5000' Temperature Forecast
(Max / Min)
Friday 38 / 33
Friday Night 36 / 31
West North 5000' Temperature Forecast
(Max / Min)
Friday 37 / 30
Friday Night 32 / 30
West Central 5000' Temperature Forecast
(Max / Min)
Friday 38 / 31
Friday Night 32 / 26
West South 5000' Temperature Forecast
(Max / Min)
Friday 39 / 30
Friday Night 32 / 26
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Friday 39 / 31
Friday Night 29 / 20
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Friday 38 / 34
Friday Night 29 / 24
East North 5000' Temperature Forecast
(Max / Min)
Friday 37 / 27
Friday Night 26 / 21
East Central 5000' Temperature Forecast
(Max / Min)
Friday 39 / 30
Friday Night 31 / 21
East South 5000' Temperature Forecast
(Max / Min)
Friday 39 / 30
Friday Night 37 / 25
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Friday 39 / 29
Friday Night 30 / 27

Ridgeline Winds (mph)

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

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

Previous forecast from Jan 13, 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