Issued: 6:58 AM PDT Monday, March 25, 2024
by Dennis D'Amico

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

Weather Synopsis

A weak front will move through the area today, reinforcing cloud cover and spreading increased shower activity in the afternoon.  A weak area of convergence over the San Juans and western Cascades of Skagit/Whatcom counties will fizzle out later today.  However, after the frontal passage this afternoon, we'll see a stronger area of convergence take shape over the central Cascades, affecting the Mt Loop Hwy, Stevens Pass and Snoqualmie Pass areas overnight and through Tuesday morning. While this won't be the PSCZ of the year, we'll see some localized overnight snow totals in the 3-6" range above 3000' accompanied by moderate westerly ridgeline winds. Mt Hood will likely pick up similar amounts of snow as showers increase overnight along with even strong westerly ridgeline winds.  

Showers will continue on Tuesday but become more scattered in the afternoon as upper level ridging builds offshore. We're likely to see more sunshine along the east slopes of the Cascades on Tuesday afternoon along with higher freezing levels versus the cloudier west slopes 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
Monday Cloudy with scattered light rain and snow showers.
Monday Night Cloudy with scattered light to occasionally moderate rain and snow showers.
Monday Cloudy with light to occasionally moderate rain and snow showers becoming scattered in the afternoon.
Monday Night Cloudy with scattered light to occasionally moderate rain and snow showers.
Monday Cloudy with light to occasionally moderate rain and snow showers becoming scattered in the afternoon.
Monday Night Light to occasionally moderate rain and snow showers. Moderate ridgeline winds.
Monday Mostly cloudy with scattered light rain and snow showers. Showers increasing in the afternoon.
Monday Night Light to occasionally moderate rain and snow showers. Moderate ridgeline winds.
Monday Mostly cloudy with scattered light rain and snow showers. Light to moderate Pass level and ridgeline W winds.
Monday Night Light to occasionally moderate rain and snow showers. Light to moderate Pass level and ridgeline W winds.
Monday Mostly cloudy with scattered light rain and snow showers. Light to moderate Pass level and ridgeline W winds.
Monday Night Light to occasionally moderate rain and snow showers. Moderate Pass level and ridgeline W winds.
Monday Mostly cloudy with scattered light rain and snow showers.
Monday Night Cloudy with scattered light rain and snow showers.
Monday Mostly cloudy with scattered light rain and snow showers.
Monday Night Cloudy with scattered light rain and snow showers. Moderate ridgeline winds.
Monday Mostly cloudy with scattered light rain and snow showers.
Monday Night Cloudy with scattered light rain and snow showers. Moderate ridgeline winds.
Monday Mostly cloudy with scattered light rain and snow showers. Showers increasing in the afternoon. Moderate to strong ridgeline winds.
Monday Night Light to moderate rain and snow showers. Strong ridgeline winds.

Issued: 6:58 AM PDT Monday, March 25, 2024

Precipitation (in)

Monday Monday Night Tuesday
5 am - 5 pm 5 pm - 5 am 5 am - 5 pm
Hurricane Ridge LT 0.10 LT 0.25 LT 0.10
Mt Baker Ski Area LT 0.25 LT 0.25 0.25
Mt. Loop - Barlow Pass LT 0.25 0.25 0.25
Stevens Pass LT 0.10 0.25 LT 0.25
Snoqualmie Pass LT 0.25 0.25 - 0.50 0.25
Crystal Mt LT 0.10 LT 0.25 LT 0.10
Paradise LT 0.25 0.25 LT 0.25
White Pass LT 0.10 LT 0.25 LT 0.10
Washington Pass LT 0.10 LT 0.10 LT 0.10
Mission Ridge 0 LT 0.10 0
Salmon la Sac - Gallagher Head LT 0.10 LT 0.25 LT 0.10
Tieton River - Darland Mt. LT 0.10 LT 0.10 LT 0.10
Mt Hood Meadows LT 0.25 0.50 LT 0.25
Timberline 0.25 0.50 - 0.75 LT 0.25
Hurricane Ridge Precipitation (in)
Monday LT 0.10
Monday Night LT 0.25
Tuesday LT 0.10
Mt Baker Ski Area Precipitation (in)
Monday LT 0.25
Monday Night LT 0.25
Tuesday 0.25
Mt. Loop - Barlow Pass Precipitation (in)
Monday LT 0.25
Monday Night 0.25
Tuesday 0.25
Stevens Pass Precipitation (in)
Monday LT 0.10
Monday Night 0.25
Tuesday LT 0.25
Snoqualmie Pass Precipitation (in)
Monday LT 0.25
Monday Night 0.25 - 0.50
Tuesday 0.25
Crystal Mt Precipitation (in)
Monday LT 0.10
Monday Night LT 0.25
Tuesday LT 0.10
Paradise Precipitation (in)
Monday LT 0.25
Monday Night 0.25
Tuesday LT 0.25
White Pass Precipitation (in)
Monday LT 0.10
Monday Night LT 0.25
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
Monday Night LT 0.10
Tuesday 0
Salmon la Sac - Gallagher Head Precipitation (in)
Monday LT 0.10
Monday Night LT 0.25
Tuesday LT 0.10
Tieton River - Darland Mt. Precipitation (in)
Monday LT 0.10
Monday Night LT 0.10
Tuesday LT 0.10
Mt Hood Meadows Precipitation (in)
Monday LT 0.25
Monday Night 0.50
Tuesday LT 0.25
Timberline Precipitation (in)
Monday 0.25
Monday Night 0.50 - 0.75
Tuesday LT 0.25

Issued: 6:58 AM PDT Monday, March 25, 2024

Snow Level (ft)

Monday Morning Monday Afternoon Monday Evening Monday Night Tuesday Morning Tuesday Afternoon
Olympics 3500' 4000' 3500' 3000' 3000' 4000'
West North 3500' 4000' 3500' 3000' 3000' 3500'
West Central 3500' 4000' 3500' 3000' 3000' 3500'
West South 3500' 4500' 3500' 3000' 3000' 4500'
Stevens Pass 3500' 4500' 3500' 3000' 3000' 3500'
Snoqualmie Pass 3500' 4000' 3500' 3000' 3000' 3500'
East North 3500' 5500' 3500' 3000' 3500' 5000'
East Central 3500' 5000' 3500' 3000' 3500' 5000'
East South 3500' 5500' 3500' 3000' 3500' 5000'
Mt. Hood 3500' 4000' 3500' 3000' 3000' 4000'
Olympics Elevation
Monday Morning 3500'
Monday Afternoon 4000'
Monday Evening 3500'
Monday Night 3000'
Tuesday Morning 3000'
Tuesday Afternoon 4000'
West North Elevation
Monday Morning 3500'
Monday Afternoon 4000'
Monday Evening 3500'
Monday Night 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3500'
West Central Elevation
Monday Morning 3500'
Monday Afternoon 4000'
Monday Evening 3500'
Monday Night 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3500'
West South Elevation
Monday Morning 3500'
Monday Afternoon 4500'
Monday Evening 3500'
Monday Night 3000'
Tuesday Morning 3000'
Tuesday Afternoon 4500'
Stevens Pass Elevation
Monday Morning 3500'
Monday Afternoon 4500'
Monday Evening 3500'
Monday Night 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3500'
Snoqualmie Pass Elevation
Monday Morning 3500'
Monday Afternoon 4000'
Monday Evening 3500'
Monday Night 3000'
Tuesday Morning 3000'
Tuesday Afternoon 3500'
East North Elevation
Monday Morning 3500'
Monday Afternoon 5500'
Monday Evening 3500'
Monday Night 3000'
Tuesday Morning 3500'
Tuesday Afternoon 5000'
East Central Elevation
Monday Morning 3500'
Monday Afternoon 5000'
Monday Evening 3500'
Monday Night 3000'
Tuesday Morning 3500'
Tuesday Afternoon 5000'
East South Elevation
Monday Morning 3500'
Monday Afternoon 5500'
Monday Evening 3500'
Monday Night 3000'
Tuesday Morning 3500'
Tuesday Afternoon 5000'
Mt. Hood Elevation
Monday Morning 3500'
Monday Afternoon 4000'
Monday Evening 3500'
Monday Night 3000'
Tuesday Morning 3000'
Tuesday Afternoon 4000'

Issued: 6:58 AM PDT Monday, March 25, 2024

5000' Temperatures (°F)

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

Issued: 6:58 AM PDT Monday, March 25, 2024

Ridgeline Winds (mph)

Monday Morning Monday Afternoon Monday Evening Monday Night
Olympics W 0-10 W 5-15 W 5-15 W 5-15
West North SSW 5-15 SW 5-15 WSW 0-10 WSW 5-15
West Central SW 5-15 SW 0-10 SW 5-15 W 5-15
West South WSW 5-15 WSW 5-15 W 5-15 W 10-20
Stevens Pass W 10-20 W 5-15 W 5-15 W 10-20
Snoqualmie Pass W 10-20 W 5-15 W 10-20 W 10-20
East North WSW 5-15 W 5-15 W 5-15 W 10-20
East Central W 10-20 W 10-20 W 10-20 W 15-25
East South W 10-20 W 10-20 W 10-20 W 10-20
Mt. Hood W 15-25 W 15-25 W 20-30 W 20-30
Olympics Ridgeline Winds (mph)
Monday Morning W 0-10
Monday Afternoon W 5-15
Monday Evening W 5-15
Monday Night W 5-15
West North Ridgeline Winds (mph)
Monday Morning SSW 5-15
Monday Afternoon SW 5-15
Monday Evening WSW 0-10
Monday Night WSW 5-15
West Central Ridgeline Winds (mph)
Monday Morning SW 5-15
Monday Afternoon SW 0-10
Monday Evening SW 5-15
Monday Night W 5-15
West South Ridgeline Winds (mph)
Monday Morning WSW 5-15
Monday Afternoon WSW 5-15
Monday Evening W 5-15
Monday Night W 10-20
Stevens Pass Ridgeline Winds (mph)
Monday Morning W 10-20
Monday Afternoon W 5-15
Monday Evening W 5-15
Monday Night W 10-20
Snoqualmie Pass Ridgeline Winds (mph)
Monday Morning W 10-20
Monday Afternoon W 5-15
Monday Evening W 10-20
Monday Night W 10-20
East North Ridgeline Winds (mph)
Monday Morning WSW 5-15
Monday Afternoon W 5-15
Monday Evening W 5-15
Monday Night W 10-20
East Central Ridgeline Winds (mph)
Monday Morning W 10-20
Monday Afternoon W 10-20
Monday Evening W 10-20
Monday Night W 15-25
East South Ridgeline Winds (mph)
Monday Morning W 10-20
Monday Afternoon W 10-20
Monday Evening W 10-20
Monday Night W 10-20
Mt. Hood Ridgeline Winds (mph)
Monday Morning W 15-25
Monday Afternoon W 15-25
Monday Evening W 20-30
Monday Night W 20-30

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

Previous forecast from Mar 24, 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’.