Issued: 2:10 PM PST Sunday, February 6, 2022
by Robert Hahn

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

Weather Synopsis

A series of storms have been impacting the Alaska Panhandle and northern British Columbia. Sunday night remains mild in our region with the ridge flattening to allow the weak southern end of a cold front to move into our region. Clouds lowering and thickening across Washington State and WSW ridgeline winds increase into the moderate range for many areas by the early morning hours. Light rain showers should commence in the Olympics before dawn.

The frontal passage occurs before 10 AM Monday morning, bringing light rain and high elevation snow showers. A brief period of freezing rain could develop through the mountain passes if precipitation begins before winds shift westerly. A few inches of snow could accumulate in the mid and upper elevations of the northern Cascades where temperatures cool more rapidly behind the cold front. South of Mt. Rainier temperatures cool very little and expect little more than a trace of precipitation. Moderate to strong WSW ridgeline winds peak in the early morning hours around Mt. Baker, then should be strongest along the eastern slopes of the Cascades, through the mountain gaps, and in the Mt Hood area during the day on Monday. A weak convergence band could continue light rain and snow showers slightly longer Monday afternoon and early evening in the Mountain Loop area.

Conditions dry out Monday night and Tuesday as the high-pressure rebounds. Expect trapped low clouds below 3000 ft with some thin high clouds spilling, but mostly full sunshine for the mountains. The ridge will bring more warming to central and southern parts of the forecast region, while the north Cascades will remain cooler.

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
Sunday Night Mild with high clouds lowering and thickening overnight and very light rain developing by morning.
Monday Very light rain and highest elevation snow in the early morning hours, then a chance of isolated showers. Cooling.
Sunday Night Mild with high clouds lowering and thickening overnight. Moderate to occasionally strong ridgeline winds developing in the early morning hours.
Monday Cooler with light rain and snow showers decreasing in the afternoon. Strong ridgeline wind gusts early.
Sunday Night Mild with high clouds lowering and thickening overnight.
Monday Cooler with light rain and snow showers; convergence likely develops in the mountain loop region during the afternoon.
Sunday Night Mild with high clouds lowering and thickening overnight.
Monday Light rain or high elevation snow showers possible in the morning and tapering during the afternoon. Crystal likely rain shadowed. Strong ridgeline winds likely near the Cascade crest during the morning hours.
Sunday Night Mild with a low-level inversion. High clouds lowering and thickening overnight. Decreasing light E winds at the Pass.
Monday Cooler with light rain and snow showers decreasing in the afternoon. Light E wind switching W very early in the day.
Sunday Night Mild with a low-level inversion. High clouds lowering and thickening overnight. Light to moderate E winds becoming light at the Pass.
Monday Cooler with light rain and snow showers decreasing in the afternoon. Light E wind switching W very early in the day.
Sunday Night Mild with a strong low-level inversion. High clouds lowering and thickening overnight.
Monday Light rain and snow showers during the morning hours, then partially clearing late in the day.
Sunday Night Mild with a strong low-level inversion. High clouds lowering and thickening overnight. Strong ridgeline winds possible during the early morning hours.
Monday Light rain and snow showers during the morning hours, then partially clearing late in the day. Strong ridgeline winds at times.
Sunday Night Mild with a strong low-level inversion. High clouds lowering and thickening overnight.
Monday Cloudy in the morning with a chance of a sprinkle, then becoming partly cloudy. Strong ridgeline wind gusts possible.
Sunday Night Mild with a strong low-level inversion. Strong wind gusts possible by the early morning hours.
Monday Mostly cloudy and mild with sprinkles possible during the afternoon hours. Moderate to strong ridgeline winds.

Issued: 2:10 PM PST Sunday, February 6, 2022

Precipitation (in)

Sunday Night Monday Monday Night Tuesday
4 pm - 4 am 4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge LT 0.10 LT 0.10 0 0
Mt Baker Ski Area 0 LT 0.25 0 0
Mt. Loop - Barlow Pass 0 LT 0.25 LT 0.10 0
Stevens Pass 0 LT 0.10 0 0
Snoqualmie Pass 0 LT 0.10 0 0
Crystal Mt 0 0 0 0
Paradise 0 LT 0.10 0 0
White Pass 0 LT 0.10 0 0
Washington Pass 0 LT 0.10 0 0
Mission Ridge 0 0 0 0
Salmon la Sac - Gallagher Head 0 LT 0.10 0 0
Tieton River - Darland Mt. 0 0 0 0
Mt Hood Meadows 0 LT 0.10 0 0
Timberline 0 LT 0.10 0 0
Hurricane Ridge Precipitation (in)
Sunday Night LT 0.10
Monday LT 0.10
Monday Night 0
Tuesday 0
Mt Baker Ski Area Precipitation (in)
Sunday Night 0
Monday LT 0.25
Monday Night 0
Tuesday 0
Mt. Loop - Barlow Pass Precipitation (in)
Sunday Night 0
Monday LT 0.25
Monday Night LT 0.10
Tuesday 0
Stevens Pass Precipitation (in)
Sunday Night 0
Monday LT 0.10
Monday Night 0
Tuesday 0
Snoqualmie Pass Precipitation (in)
Sunday Night 0
Monday LT 0.10
Monday Night 0
Tuesday 0
Crystal Mt Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Paradise Precipitation (in)
Sunday Night 0
Monday LT 0.10
Monday Night 0
Tuesday 0
White Pass Precipitation (in)
Sunday Night 0
Monday LT 0.10
Monday Night 0
Tuesday 0
Washington Pass Precipitation (in)
Sunday Night 0
Monday LT 0.10
Monday Night 0
Tuesday 0
Mission Ridge Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Salmon la Sac - Gallagher Head Precipitation (in)
Sunday Night 0
Monday LT 0.10
Monday Night 0
Tuesday 0
Tieton River - Darland Mt. Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Mt Hood Meadows Precipitation (in)
Sunday Night 0
Monday LT 0.10
Monday Night 0
Tuesday 0
Timberline Precipitation (in)
Sunday Night 0
Monday LT 0.10
Monday Night 0
Tuesday 0

Issued: 2:10 PM PST Sunday, February 6, 2022

Snow Level (ft)

Sunday Evening* Sunday Night* Monday Morning* Monday Afternoon Monday Evening Monday Night Tuesday Morning Tuesday Afternoon
Olympics 9500' 8500' 7500' 4500' 4000' 4500' 6000' 6500'
West North 8500' 8500' 6000' 3500' 4000' 3500' 3500' 3000'
West Central 9000' 9000' 7000' 4000' 3500' 3500' 3500' 4000'
West South 10000' 10000' 8500' 6500' 5000' 4000' 5500' 7500'
Stevens Pass 9000' 9500' 7500' 4500' 4500' 3500' 3500' 5000'
Snoqualmie Pass 9500' 9500' 8000' 5500' 4500' 4000' 4000' 6000'
East North 9000' 9000' 7000' 4500' 4500' 3500' 3500' 4000'
East Central 9500' 9500' 8000' 5500' 4500' 4000' 4000' 6500'
East South 10000' 10000' 9500' 8500' 6000' 4500' 7000' 8500'
Mt. Hood 10500' 10500' 10000' 8500' 7500' 7500' 9000' 9500'
Olympics Elevation
Sunday Evening* 9500'
Sunday Night* 8500'
Monday Morning* 7500'
Monday Afternoon 4500'
Monday Evening 4000'
Monday Night 4500'
Tuesday Morning 6000'
Tuesday Afternoon 6500'
West North Elevation
Sunday Evening* 8500'
Sunday Night* 8500'
Monday Morning* 6000'
Monday Afternoon 3500'
Monday Evening 4000'
Monday Night 3500'
Tuesday Morning 3500'
Tuesday Afternoon 3000'
West Central Elevation
Sunday Evening* 9000'
Sunday Night* 9000'
Monday Morning* 7000'
Monday Afternoon 4000'
Monday Evening 3500'
Monday Night 3500'
Tuesday Morning 3500'
Tuesday Afternoon 4000'
West South Elevation
Sunday Evening* 10000'
Sunday Night* 10000'
Monday Morning* 8500'
Monday Afternoon 6500'
Monday Evening 5000'
Monday Night 4000'
Tuesday Morning 5500'
Tuesday Afternoon 7500'
Stevens Pass Elevation
Sunday Evening* 9000'
Sunday Night* 9500'
Monday Morning* 7500'
Monday Afternoon 4500'
Monday Evening 4500'
Monday Night 3500'
Tuesday Morning 3500'
Tuesday Afternoon 5000'
Snoqualmie Pass Elevation
Sunday Evening* 9500'
Sunday Night* 9500'
Monday Morning* 8000'
Monday Afternoon 5500'
Monday Evening 4500'
Monday Night 4000'
Tuesday Morning 4000'
Tuesday Afternoon 6000'
East North Elevation
Sunday Evening* 9000'
Sunday Night* 9000'
Monday Morning* 7000'
Monday Afternoon 4500'
Monday Evening 4500'
Monday Night 3500'
Tuesday Morning 3500'
Tuesday Afternoon 4000'
East Central Elevation
Sunday Evening* 9500'
Sunday Night* 9500'
Monday Morning* 8000'
Monday Afternoon 5500'
Monday Evening 4500'
Monday Night 4000'
Tuesday Morning 4000'
Tuesday Afternoon 6500'
East South Elevation
Sunday Evening* 10000'
Sunday Night* 10000'
Monday Morning* 9500'
Monday Afternoon 8500'
Monday Evening 6000'
Monday Night 4500'
Tuesday Morning 7000'
Tuesday Afternoon 8500'
Mt. Hood Elevation
Sunday Evening* 10500'
Sunday Night* 10500'
Monday Morning* 10000'
Monday Afternoon 8500'
Monday Evening 7500'
Monday Night 7500'
Tuesday Morning 9000'
Tuesday Afternoon 9500'

Issued: 2:10 PM PST Sunday, February 6, 2022

5000' Temperatures (°F)

Sunday Night Monday
Max / Min Max / Min
Olympics 43 / 35 35 / 30
West North 38 / 33 34 / 28
West Central 39 / 34 34 / 29
West South 40 / 35 35 / 31
Stevens Pass 38 / 34 34 / 30
Snoqualmie Pass 39 / 34 34 / 30
East North 33 / 18 34 / 28
East Central 40 / 35 35 / 31
East South 42 / 36 36 / 32
Mt. Hood 45 / 39 40 / 35
Olympics 5000' Temperature Forecast
(Max / Min)
Sunday Night 43 / 35
Monday 35 / 30
West North 5000' Temperature Forecast
(Max / Min)
Sunday Night 38 / 33
Monday 34 / 28
West Central 5000' Temperature Forecast
(Max / Min)
Sunday Night 39 / 34
Monday 34 / 29
West South 5000' Temperature Forecast
(Max / Min)
Sunday Night 40 / 35
Monday 35 / 31
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Sunday Night 38 / 34
Monday 34 / 30
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Sunday Night 39 / 34
Monday 34 / 30
East North 5000' Temperature Forecast
(Max / Min)
Sunday Night 33 / 18
Monday 34 / 28
East Central 5000' Temperature Forecast
(Max / Min)
Sunday Night 40 / 35
Monday 35 / 31
East South 5000' Temperature Forecast
(Max / Min)
Sunday Night 42 / 36
Monday 36 / 32
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Sunday Night 45 / 39
Monday 40 / 35

Issued: 2:10 PM PST Sunday, February 6, 2022

Ridgeline Winds (mph)

Sunday Evening Sunday Night Monday Morning Monday Afternoon
Olympics SW 10-20 WSW 15-25 WSW 15-25 W 5-15
West North SSW 15-25 SSW 20-30 SW 20-30 WSW 10-20
West Central SSW 5-15 SW 15-25 SW 15-25 W 10-20
West South SSW 5-15 SW 20-30 WSW 20-30 WSW 15-25
Stevens Pass SSW 5-15 WSW 10-20 WSW 20-30 W 20-30
Snoqualmie Pass SW 5-15 WSW 10-20 W 15-25 W 20-30
East North SW 5-15 SW 15-25 WSW 20-30 W 25-35
East Central WSW 10-20 WSW 20-30 W 25-35 W 30-40
East South SW 5-15 WSW 15-25 WSW 15-25 W 20-30
Mt. Hood SW 5-15 WSW 20-30 WSW 20-30 W 25-35
Olympics Ridgeline Winds (mph)
Sunday Evening SW 10-20
Sunday Night WSW 15-25
Monday Morning WSW 15-25
Monday Afternoon W 5-15
West North Ridgeline Winds (mph)
Sunday Evening SSW 15-25
Sunday Night SSW 20-30
Monday Morning SW 20-30
Monday Afternoon WSW 10-20
West Central Ridgeline Winds (mph)
Sunday Evening SSW 5-15
Sunday Night SW 15-25
Monday Morning SW 15-25
Monday Afternoon W 10-20
West South Ridgeline Winds (mph)
Sunday Evening SSW 5-15
Sunday Night SW 20-30
Monday Morning WSW 20-30
Monday Afternoon WSW 15-25
Stevens Pass Ridgeline Winds (mph)
Sunday Evening SSW 5-15
Sunday Night WSW 10-20
Monday Morning WSW 20-30
Monday Afternoon W 20-30
Snoqualmie Pass Ridgeline Winds (mph)
Sunday Evening SW 5-15
Sunday Night WSW 10-20
Monday Morning W 15-25
Monday Afternoon W 20-30
East North Ridgeline Winds (mph)
Sunday Evening SW 5-15
Sunday Night SW 15-25
Monday Morning WSW 20-30
Monday Afternoon W 25-35
East Central Ridgeline Winds (mph)
Sunday Evening WSW 10-20
Sunday Night WSW 20-30
Monday Morning W 25-35
Monday Afternoon W 30-40
East South Ridgeline Winds (mph)
Sunday Evening SW 5-15
Sunday Night WSW 15-25
Monday Morning WSW 15-25
Monday Afternoon W 20-30
Mt. Hood Ridgeline Winds (mph)
Sunday Evening SW 5-15
Sunday Night WSW 20-30
Monday Morning WSW 20-30
Monday Afternoon W 25-35

Issued: 2:10 PM PST Sunday, February 6, 2022

Extended Weather Synopsis

A mostly dry NW flow will dominate our weather Tuesday night through Thursday with an upper-level and surface high pressure offshore. By Thursday the upper-level ridge drifts south toward California but maintains a strong grip on our region. Mid and upper-elevation mountain temperatures should warm through the extended forecast. Expect nightly inversions to form and weaken during the daytime hours.

Extended Snow Level (ft)

Tuesday Night Wednesday Wednesday Night Thursday
West North 4000' 5500' 11000' 11000'
Snoqualmie Pass 7000' 8500' 11000' 11500'
Mt. Hood 9000' 9500' 11000' 11500'
West North Elevation
Tuesday Night 4000'
Wednesday 5500'
Wednesday Night 11000'
Thursday 11000'
Snoqualmie Pass Elevation
Tuesday Night 7000'
Wednesday 8500'
Wednesday Night 11000'
Thursday 11500'
Mt. Hood Elevation
Tuesday Night 9000'
Wednesday 9500'
Wednesday Night 11000'
Thursday 11500'

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

Previous forecast from Feb 6, 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’.