Issued: 7:07 AM PST Monday, February 5, 2024
by Robert Hahn

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

Weather Synopsis

A weakening low-pressure system drifts northward from just off the California coastline. Bands of moisture have drifted as far north as the central Washington Cascades overnight and should reach the Canadian border by the afternoon. The low-pressure center gradually morphs into a trough and SE winds gradually decrease as a result and shift slightly more southerly. Precipitation continues to focus on areas of the E slopes of the Cascades such as the Wenatchee Mountains, the southern Cascade Volcanoes, and the southeast Olympics where 0.25" precipitation is possible through 4 PM on Monday. Other areas can expect less.

Monday night, the trough axis shifts toward the region, reaching the Cascades in the early morning hours. This should bring a slight uptick in the very light rain and snow overnight.

On Tuesday, expect mostly cloudy conditions with scattered rain and snow showers as the subtle trough shifts across the area. Winds should be light.

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
Monday Cloudy with increasing periods of light rain and snow.
Monday Night Cloudy with periods of light rain and snow.
Monday Cloudy with light rain and snow possible in the afternoon.
Monday Night Periods of light rain and snow.
Monday Cloudy with periods of very light rain and snow.
Monday Night Cloudy with periods of very light rain and snow.
Monday Cloudy with periods of light rain and snow. Moderate to locally strong and gusty SE winds near the Cascade Crest decrease and turn S.
Monday Night Cloudy with periods of light rain and snow.
Monday Cloudy with periods of light rain and snow. Decreasing light to moderate ridgeline and light E wind at the Pass.
Monday Night Cloudy with periods of light rain and snow. Light ridgeline and E wind at the Pass.
Monday Cloudy with periods of very light rain and snow. Decreasing moderate ridgeline and light to moderate E wind at the Pass.
Monday Night Cloudy with increasing periods of light rain and snow. Light ridgeline and E wind at the Pass.
Monday Cloudy with periods of light snow. Decreasing light to moderate ESE winds.
Monday Night Cloudy with periods of light snow.
Monday Cloudy with periods of light rain and snow. Moderate ESE ridgeline winds become light.
Monday Night Cloudy with periods of light rain and snow.
Monday Cloudy with periods of light rain and snow. Decreasing light SE ridgeline winds become S.
Monday Night Cloudy with periods of light rain and snow.
Monday Cloudy with periods of light rain and snow. Decreasing light to moderate ridgeline winds.
Monday Night Cloudy with decreasing periods of light rain and snow.

Issued: 7:07 AM PST Monday, February 5, 2024

Precipitation (in)

Monday Monday Night Tuesday
4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge LT 0.10 LT 0.10 0
Mt Baker Ski Area LT 0.10 LT 0.10 LT 0.10
Mt. Loop - Barlow Pass LT 0.10 LT 0.10 LT 0.10
Stevens Pass LT 0.10 LT 0.10 LT 0.10
Snoqualmie Pass LT 0.10 LT 0.10 LT 0.10
Crystal Mt LT 0.25 LT 0.10 LT 0.10
Paradise LT 0.25 LT 0.25 LT 0.10
White Pass LT 0.10 LT 0.10 LT 0.10
Washington Pass LT 0.10 LT 0.10 LT 0.10
Mission Ridge 0.25 - 0.50 LT 0.25 LT 0.10
Salmon la Sac - Gallagher Head LT 0.25 LT 0.25 LT 0.10
Tieton River - Darland Mt. LT 0.25 LT 0.25 LT 0.10
Mt Hood Meadows 0.25 0.25 LT 0.10
Timberline 0.25 0.25 LT 0.10
Hurricane Ridge Precipitation (in)
Monday LT 0.10
Monday Night LT 0.10
Tuesday 0
Mt Baker Ski Area Precipitation (in)
Monday LT 0.10
Monday Night LT 0.10
Tuesday LT 0.10
Mt. Loop - Barlow Pass Precipitation (in)
Monday LT 0.10
Monday Night LT 0.10
Tuesday LT 0.10
Stevens Pass Precipitation (in)
Monday LT 0.10
Monday Night LT 0.10
Tuesday LT 0.10
Snoqualmie Pass Precipitation (in)
Monday LT 0.10
Monday Night LT 0.10
Tuesday LT 0.10
Crystal Mt Precipitation (in)
Monday LT 0.25
Monday Night LT 0.10
Tuesday LT 0.10
Paradise Precipitation (in)
Monday LT 0.25
Monday Night LT 0.25
Tuesday LT 0.10
White Pass Precipitation (in)
Monday LT 0.10
Monday Night LT 0.10
Tuesday LT 0.10
Washington Pass Precipitation (in)
Monday LT 0.10
Monday Night LT 0.10
Tuesday LT 0.10
Mission Ridge Precipitation (in)
Monday 0.25 - 0.50
Monday Night LT 0.25
Tuesday LT 0.10
Salmon la Sac - Gallagher Head Precipitation (in)
Monday LT 0.25
Monday Night LT 0.25
Tuesday LT 0.10
Tieton River - Darland Mt. Precipitation (in)
Monday LT 0.25
Monday Night LT 0.25
Tuesday LT 0.10
Mt Hood Meadows Precipitation (in)
Monday 0.25
Monday Night 0.25
Tuesday LT 0.10
Timberline Precipitation (in)
Monday 0.25
Monday Night 0.25
Tuesday LT 0.10

Issued: 7:07 AM PST Monday, February 5, 2024

Snow Level (ft)

Monday Morning* Monday Afternoon* Monday Evening* Monday Night* Tuesday Morning Tuesday Afternoon
Olympics 3000' 3000' 3000' 2500' 3000' 3000'
West North 2500' 3500' 3500' 3000' 3000' 3000'
West Central 3000' 3500' 3500' 3000' 3000' 3000'
West South 3000' 3500' 3500' 3000' 3000' 3500'
Stevens Pass 2500' 3000' 3000' 2500' 2500' 3500'
Snoqualmie Pass 3000' 3500' 3500' 3000' 3000' 3500'
East North 2000' 3000' 3000' 2000' 2000' 3500'
East Central 2500' 3500' 3000' 2500' 2500' 3500'
East South 2500' 3500' 3500' 3000' 3000' 3500'
Mt. Hood 3000' 3500' 4500' 4000' 3500' 3500'
Olympics Elevation
Monday Morning* 3000'
Monday Afternoon* 3000'
Monday Evening* 3000'
Monday Night* 2500'
Tuesday Morning 3000'
Tuesday Afternoon 3000'
West North Elevation
Monday Morning* 2500'
Monday Afternoon* 3500'
Monday Evening* 3500'
Monday Night* 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3000'
West Central Elevation
Monday Morning* 3000'
Monday Afternoon* 3500'
Monday Evening* 3500'
Monday Night* 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3000'
West South Elevation
Monday Morning* 3000'
Monday Afternoon* 3500'
Monday Evening* 3500'
Monday Night* 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3500'
Stevens Pass Elevation
Monday Morning* 2500'
Monday Afternoon* 3000'
Monday Evening* 3000'
Monday Night* 2500'
Tuesday Morning 2500'
Tuesday Afternoon 3500'
Snoqualmie Pass Elevation
Monday Morning* 3000'
Monday Afternoon* 3500'
Monday Evening* 3500'
Monday Night* 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3500'
East North Elevation
Monday Morning* 2000'
Monday Afternoon* 3000'
Monday Evening* 3000'
Monday Night* 2000'
Tuesday Morning 2000'
Tuesday Afternoon 3500'
East Central Elevation
Monday Morning* 2500'
Monday Afternoon* 3500'
Monday Evening* 3000'
Monday Night* 2500'
Tuesday Morning 2500'
Tuesday Afternoon 3500'
East South Elevation
Monday Morning* 2500'
Monday Afternoon* 3500'
Monday Evening* 3500'
Monday Night* 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3500'
Mt. Hood Elevation
Monday Morning* 3000'
Monday Afternoon* 3500'
Monday Evening* 4500'
Monday Night* 4000'
Tuesday Morning 3500'
Tuesday Afternoon 3500'

Issued: 7:07 AM PST Monday, February 5, 2024

5000' Temperatures (°F)

Monday Monday Night
Max / Min Max / Min
Olympics 31 / 25 28 / 26
West North 31 / 28 29 / 27
West Central 31 / 28 29 / 27
West South 33 / 28 31 / 29
Stevens Pass 31 / 26 28 / 25
Snoqualmie Pass 30 / 26 29 / 27
East North 29 / 20 27 / 21
East Central 29 / 25 29 / 26
East South 31 / 26 30 / 27
Mt. Hood 32 / 30 32 / 29
Olympics 5000' Temperature Forecast
(Max / Min)
Monday 31 / 25
Monday Night 28 / 26
West North 5000' Temperature Forecast
(Max / Min)
Monday 31 / 28
Monday Night 29 / 27
West Central 5000' Temperature Forecast
(Max / Min)
Monday 31 / 28
Monday Night 29 / 27
West South 5000' Temperature Forecast
(Max / Min)
Monday 33 / 28
Monday Night 31 / 29
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Monday 31 / 26
Monday Night 28 / 25
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Monday 30 / 26
Monday Night 29 / 27
East North 5000' Temperature Forecast
(Max / Min)
Monday 29 / 20
Monday Night 27 / 21
East Central 5000' Temperature Forecast
(Max / Min)
Monday 29 / 25
Monday Night 29 / 26
East South 5000' Temperature Forecast
(Max / Min)
Monday 31 / 26
Monday Night 30 / 27
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Monday 32 / 30
Monday Night 32 / 29

Issued: 7:07 AM PST Monday, February 5, 2024

Ridgeline Winds (mph)

Monday Morning Monday Afternoon Monday Evening Monday Night
Olympics ENE 5-15 NE 0-10 N 0-10 NNW 0-10
West North SE 5-15 ESE 0-10 SSE 0-10 S 0-10
West Central ESE 10-20 ESE 10-20 ESE 5-15 SE 0-10
West South ESE 15-25 SE 10-20 SSE 5-15 SW 0-10
Stevens Pass ESE 15-25 ESE 5-15 SE 5-15 SSE 0-10
Snoqualmie Pass ESE 20-30 ESE 10-20 ESE 5-15 SE 0-10
East North ESE 10-20 ESE 5-15 SE 5-15 SSE 0-10
East Central ESE 15-25 SE 5-15 SSE 5-15 SSE 0-10
East South SE 10-20 S 5-15 S 0-10 SW 0-10
Mt. Hood S 15-25 SSW 10-20 SSW 5-15 SW 5-15
Olympics Ridgeline Winds (mph)
Monday Morning ENE 5-15
Monday Afternoon NE 0-10
Monday Evening N 0-10
Monday Night NNW 0-10
West North Ridgeline Winds (mph)
Monday Morning SE 5-15
Monday Afternoon ESE 0-10
Monday Evening SSE 0-10
Monday Night S 0-10
West Central Ridgeline Winds (mph)
Monday Morning ESE 10-20
Monday Afternoon ESE 10-20
Monday Evening ESE 5-15
Monday Night SE 0-10
West South Ridgeline Winds (mph)
Monday Morning ESE 15-25
Monday Afternoon SE 10-20
Monday Evening SSE 5-15
Monday Night SW 0-10
Stevens Pass Ridgeline Winds (mph)
Monday Morning ESE 15-25
Monday Afternoon ESE 5-15
Monday Evening SE 5-15
Monday Night SSE 0-10
Snoqualmie Pass Ridgeline Winds (mph)
Monday Morning ESE 20-30
Monday Afternoon ESE 10-20
Monday Evening ESE 5-15
Monday Night SE 0-10
East North Ridgeline Winds (mph)
Monday Morning ESE 10-20
Monday Afternoon ESE 5-15
Monday Evening SE 5-15
Monday Night SSE 0-10
East Central Ridgeline Winds (mph)
Monday Morning ESE 15-25
Monday Afternoon SE 5-15
Monday Evening SSE 5-15
Monday Night SSE 0-10
East South Ridgeline Winds (mph)
Monday Morning SE 10-20
Monday Afternoon S 5-15
Monday Evening S 0-10
Monday Night SW 0-10
Mt. Hood Ridgeline Winds (mph)
Monday Morning S 15-25
Monday Afternoon SSW 10-20
Monday Evening SSW 5-15
Monday Night SW 5-15

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

Previous forecast from Feb 4, 2024

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’.