Issued: 1:57 PM PST Sunday, March 6, 2022
by Dennis D'Amico

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

Weather Synopsis

After a beautiful sunny end to the weekend, we'll see some high clouds filter in from the northwest tonight over the region. Overnight mid-mountain temperatures may not dip below freezing in some areas. High clouds will continue to stream overhead on Monday and most areas will oscillate between partly sunny skies and filtered sunshine. Along the west slopes of the Cascades from the Canadian Border to Snoqualmie Pass, low clouds will begin to increase later in the afternoon. NW ridgeline winds will also begin to pick-up Monday afternoon ahead of an incoming frontal system. 

A frontal system driving south from the Candian prairies will sweep through Tuesday morning, but without much moisture to work with, snowfall totals look on the lighter side with this storm. Snow showers will taper off from north to south during the day on Tuesday, lingering longest in the central/southern Cascades and near Mt. Hood. Snowfall totals of up to a few inches look similar on both sides of the Cascades. 

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 Partly cloudy with periods of high clouds overnight.
Monday Partly sunny with periods of filtered sunshine. Ridgeline winds increasing and becoming moderate.
Sunday Night Partly cloudy with periods of high clouds overnight.
Monday Partly sunny with periods of filtered sunshine in the morning, then becoming cloudy in the afternoon.
Sunday Night Partly cloudy with periods of high clouds overnight.
Monday Partly sunny with periods of filtered sunshine in the morning, then becoming cloudy in the afternoon. Westerly ridgeline winds increasing and becoming moderate.
Sunday Night Partly cloudy with periods of high clouds overnight.
Monday Partly sunny with periods of filtered sunshine in the morning, then becoming cloudy in the afternoon. Westerly ridgeline winds increasing and becoming moderate.
Sunday Night Partly cloudy with periods of high clouds overnight. Light west winds at Pass level.
Monday Partly sunny with periods of filtered sunshine in the morning, then becoming cloudy in the afternoon. Westerly ridgeline winds increasing and becoming moderate. Light to moderate west winds at Pass level.
Sunday Night Partly cloudy with periods of high clouds overnight. Light west winds at Pass level.
Monday Partly sunny with periods of filtered sunshine in the morning, then becoming cloudy late in the afternoon. Westerly ridgeline winds increasing and becoming strong. Light to moderate west winds at Pass level.
Sunday Night Partly cloudy with periods of high clouds overnight.
Monday Partly sunny with periods of filtered sunshine.
Sunday Night Partly cloudy with periods of high clouds overnight.
Monday Partly sunny with periods of filtered sunshine. Ridgeline winds increasing and becoming strong.
Sunday Night Mostly clear with a few high clouds overnight.
Monday Partly sunny with periods of filtered sunshine. Westerly ridgeline winds increasing and becoming moderate.
Sunday Night Mostly clear with a few high clouds overnight.
Monday Partly sunny with periods of filtered sunshine. Ridgeline winds increasing and becoming strong.

Issued: 1:57 PM PST Sunday, March 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 0 0 LT 0.10 LT 0.25
Mt Baker Ski Area 0 0 LT 0.10 LT 0.25
Mt. Loop - Barlow Pass 0 0 LT 0.25 0.25
Stevens Pass 0 0 LT 0.25 0.25
Snoqualmie Pass 0 0 LT 0.25 0.25 - 0.50
Crystal Mt 0 0 LT 0.10 0.25
Paradise 0 0 LT 0.10 0.25
White Pass 0 0 LT 0.10 0.25
Washington Pass 0 0 LT 0.10 0
Mission Ridge 0 0 0 0.25
Salmon la Sac - Gallagher Head 0 0 LT 0.10 0.25
Tieton River - Darland Mt. 0 0 LT 0.10 LT 0.10
Mt Hood Meadows 0 0 0 LT 0.25
Timberline 0 0 0 0.25
Hurricane Ridge Precipitation (in)
Sunday Night 0
Monday 0
Monday Night LT 0.10
Tuesday LT 0.25
Mt Baker Ski Area Precipitation (in)
Sunday Night 0
Monday 0
Monday Night LT 0.10
Tuesday LT 0.25
Mt. Loop - Barlow Pass Precipitation (in)
Sunday Night 0
Monday 0
Monday Night LT 0.25
Tuesday 0.25
Stevens Pass Precipitation (in)
Sunday Night 0
Monday 0
Monday Night LT 0.25
Tuesday 0.25
Snoqualmie Pass Precipitation (in)
Sunday Night 0
Monday 0
Monday Night LT 0.25
Tuesday 0.25 - 0.50
Crystal Mt Precipitation (in)
Sunday Night 0
Monday 0
Monday Night LT 0.10
Tuesday 0.25
Paradise Precipitation (in)
Sunday Night 0
Monday 0
Monday Night LT 0.10
Tuesday 0.25
White Pass Precipitation (in)
Sunday Night 0
Monday 0
Monday Night LT 0.10
Tuesday 0.25
Washington Pass Precipitation (in)
Sunday Night 0
Monday 0
Monday Night LT 0.10
Tuesday 0
Mission Ridge Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0.25
Salmon la Sac - Gallagher Head Precipitation (in)
Sunday Night 0
Monday 0
Monday Night LT 0.10
Tuesday 0.25
Tieton River - Darland Mt. Precipitation (in)
Sunday Night 0
Monday 0
Monday Night LT 0.10
Tuesday LT 0.10
Mt Hood Meadows Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday LT 0.25
Timberline Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0.25

Issued: 1:57 PM PST Sunday, March 6, 2022

Snow Level (ft)

Sunday Evening Sunday Night Monday Morning Monday Afternoon Monday Evening Monday Night Tuesday Morning Tuesday Afternoon
Olympics 7000' 7000' 6500' 5500' 4500' 3500' 3500' 3500'
West North 4500' 4000' 3500' 3500' 3000' 2500' 2000' 2000'
West Central 4500' 4000' 4000' 4000' 3000' 3000' 3000' 3000'
West South 4500' 4000' 4500' 5000' 3500' 3500' 3500' 3500'
Stevens Pass 4000' 3500' 4000' 4000' 3000' 3000' 3000' 3000'
Snoqualmie Pass 4500' 4000' 4500' 4000' 3000' 3000' 3000' 3000'
East North 4000' 3500' 4500' 5000' 3000' 1500' 2000' 3000'
East Central 4000' 3500' 4500' 5000' 3500' 3000' 3000' 3000'
East South 5500' 4000' 6000' 6000' 4000' 3500' 3500' 4000'
Mt. Hood 6000' 7000' 7500' 7000' 5000' 3500' 3500' 3500'
Olympics Elevation
Sunday Evening 7000'
Sunday Night 7000'
Monday Morning 6500'
Monday Afternoon 5500'
Monday Evening 4500'
Monday Night 3500'
Tuesday Morning 3500'
Tuesday Afternoon 3500'
West North Elevation
Sunday Evening 4500'
Sunday Night 4000'
Monday Morning 3500'
Monday Afternoon 3500'
Monday Evening 3000'
Monday Night 2500'
Tuesday Morning 2000'
Tuesday Afternoon 2000'
West Central Elevation
Sunday Evening 4500'
Sunday Night 4000'
Monday Morning 4000'
Monday Afternoon 4000'
Monday Evening 3000'
Monday Night 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3000'
West South Elevation
Sunday Evening 4500'
Sunday Night 4000'
Monday Morning 4500'
Monday Afternoon 5000'
Monday Evening 3500'
Monday Night 3500'
Tuesday Morning 3500'
Tuesday Afternoon 3500'
Stevens Pass Elevation
Sunday Evening 4000'
Sunday Night 3500'
Monday Morning 4000'
Monday Afternoon 4000'
Monday Evening 3000'
Monday Night 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3000'
Snoqualmie Pass Elevation
Sunday Evening 4500'
Sunday Night 4000'
Monday Morning 4500'
Monday Afternoon 4000'
Monday Evening 3000'
Monday Night 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3000'
East North Elevation
Sunday Evening 4000'
Sunday Night 3500'
Monday Morning 4500'
Monday Afternoon 5000'
Monday Evening 3000'
Monday Night 1500'
Tuesday Morning 2000'
Tuesday Afternoon 3000'
East Central Elevation
Sunday Evening 4000'
Sunday Night 3500'
Monday Morning 4500'
Monday Afternoon 5000'
Monday Evening 3500'
Monday Night 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3000'
East South Elevation
Sunday Evening 5500'
Sunday Night 4000'
Monday Morning 6000'
Monday Afternoon 6000'
Monday Evening 4000'
Monday Night 3500'
Tuesday Morning 3500'
Tuesday Afternoon 4000'
Mt. Hood Elevation
Sunday Evening 6000'
Sunday Night 7000'
Monday Morning 7500'
Monday Afternoon 7000'
Monday Evening 5000'
Monday Night 3500'
Tuesday Morning 3500'
Tuesday Afternoon 3500'

Issued: 1:57 PM PST Sunday, March 6, 2022

5000' Temperatures (°F)

Sunday Night Monday
Max / Min Max / Min
Olympics 35 / 32 38 / 30
West North 31 / 26 32 / 26
West Central 31 / 25 33 / 28
West South 33 / 29 36 / 30
Stevens Pass 32 / 27 33 / 28
Snoqualmie Pass 31 / 28 33 / 28
East North 33 / 26 36 / 28
East Central 33 / 27 35 / 28
East South 34 / 27 40 / 31
Mt. Hood 35 / 31 41 / 32
Olympics 5000' Temperature Forecast
(Max / Min)
Sunday Night 35 / 32
Monday 38 / 30
West North 5000' Temperature Forecast
(Max / Min)
Sunday Night 31 / 26
Monday 32 / 26
West Central 5000' Temperature Forecast
(Max / Min)
Sunday Night 31 / 25
Monday 33 / 28
West South 5000' Temperature Forecast
(Max / Min)
Sunday Night 33 / 29
Monday 36 / 30
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Sunday Night 32 / 27
Monday 33 / 28
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Sunday Night 31 / 28
Monday 33 / 28
East North 5000' Temperature Forecast
(Max / Min)
Sunday Night 33 / 26
Monday 36 / 28
East Central 5000' Temperature Forecast
(Max / Min)
Sunday Night 33 / 27
Monday 35 / 28
East South 5000' Temperature Forecast
(Max / Min)
Sunday Night 34 / 27
Monday 40 / 31
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Sunday Night 35 / 31
Monday 41 / 32

Issued: 1:57 PM PST Sunday, March 6, 2022

Ridgeline Winds (mph)

Sunday Evening Sunday Night Monday Morning Monday Afternoon
Olympics NW 5-15 NW 10-20 NW 15-25 NW 15-25
West North NW 5-15 WNW 5-15 WNW 10-20 WNW 10-20
West Central NW 5-15 NW 10-20 NW 10-20 WNW 15-25
West South NW 5-15 NW 10-20 NW 15-25 NW 15-25
Stevens Pass NW 5-15 NW 5-15 WNW 10-20 WNW 15-25
Snoqualmie Pass NW 5-15 NW 10-20 NW 15-25 WNW 20-30
East North NW 10-20 NW 10-20 NW 10-20 NW 10-20
East Central NW 5-15 NW 10-20 NW 15-25 NW 20-30
East South NW 5-15 NW 5-15 NW 10-20 NW 15-25
Mt. Hood NW 10-20 NNW 10-20 NW 10-20 NW 20-30
Olympics Ridgeline Winds (mph)
Sunday Evening NW 5-15
Sunday Night NW 10-20
Monday Morning NW 15-25
Monday Afternoon NW 15-25
West North Ridgeline Winds (mph)
Sunday Evening NW 5-15
Sunday Night WNW 5-15
Monday Morning WNW 10-20
Monday Afternoon WNW 10-20
West Central Ridgeline Winds (mph)
Sunday Evening NW 5-15
Sunday Night NW 10-20
Monday Morning NW 10-20
Monday Afternoon WNW 15-25
West South Ridgeline Winds (mph)
Sunday Evening NW 5-15
Sunday Night NW 10-20
Monday Morning NW 15-25
Monday Afternoon NW 15-25
Stevens Pass Ridgeline Winds (mph)
Sunday Evening NW 5-15
Sunday Night NW 5-15
Monday Morning WNW 10-20
Monday Afternoon WNW 15-25
Snoqualmie Pass Ridgeline Winds (mph)
Sunday Evening NW 5-15
Sunday Night NW 10-20
Monday Morning NW 15-25
Monday Afternoon WNW 20-30
East North Ridgeline Winds (mph)
Sunday Evening NW 10-20
Sunday Night NW 10-20
Monday Morning NW 10-20
Monday Afternoon NW 10-20
East Central Ridgeline Winds (mph)
Sunday Evening NW 5-15
Sunday Night NW 10-20
Monday Morning NW 15-25
Monday Afternoon NW 20-30
East South Ridgeline Winds (mph)
Sunday Evening NW 5-15
Sunday Night NW 5-15
Monday Morning NW 10-20
Monday Afternoon NW 15-25
Mt. Hood Ridgeline Winds (mph)
Sunday Evening NW 10-20
Sunday Night NNW 10-20
Monday Morning NW 10-20
Monday Afternoon NW 20-30

Issued: 1:57 PM PST Sunday, March 6, 2022

Extended Weather Synopsis

Strong surface high pressure sliding down the B.C./Alberta border Tuesday night will temporarily drive down colder air along the east slopes of the Cascades and through the Fraser Valley. This does not look like an extended cold snap but snow levels will fall as the precipitation winds down.

The upper level trough may enable a few leftover mountain showers on Wednesday with localized light accumulations. An upper level ridge and drier conditions will develop Wednesday night and Thursday. 

Extended Snow Level (ft)

Tuesday Night Wednesday Wednesday Night Thursday
West North 500' 1500' 1000' 2000'
Snoqualmie Pass 1500' 2000' 1500' 3000'
Mt. Hood 2000' 2000' 2000' 4000'
West North Elevation
Tuesday Night 500'
Wednesday 1500'
Wednesday Night 1000'
Thursday 2000'
Snoqualmie Pass Elevation
Tuesday Night 1500'
Wednesday 2000'
Wednesday Night 1500'
Thursday 3000'
Mt. Hood Elevation
Tuesday Night 2000'
Wednesday 2000'
Wednesday Night 2000'
Thursday 4000'

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

Previous forecast from Mar 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’.