Issued: 6:56 AM PST Monday, February 19, 2024
by Dallas Glass

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

Weather Synopsis

Today's "storm" is really falling apart as it moves north into WA. A second wave of energy should help increase showers mainly on the volcanoes and along the east slopes of the Cascades near and south of the Wenatchee Mountains. Snow totals will be meager, with a few locations managing an inch or two at middle and upper elevations. 

Moderate to strong S-SE winds along the Cascade Crest and through the passes continue to be the more notable factor. This is dragging what's left of the cold air pool in central WA back into the mountains and helping cool temperatures. As easterly flow decreases in the afternoon, expect warmer air to seep into the area and allow snow levels to rise. 

Showers continue to drift toward the Canadian border Monday afternoon and evening. A drier air pocket behind the storm will move from S to N across the area overnight, allowing for partial clearing. As if on repeat, clouds increase near Mt Hood and the Southern forecast zones before midnight, and yet another wave of moisture pushes up from the S. This second round of showers will have a bit more of an SSW flow to it. This should allow for slightly more precipitation. Rain/snow stays mainly near and south of I90 in the morning but eventually shifts to the Baker area in the afternoon. 

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 a few light showers.
Monday Night Mostly cloudy with some clearing possible. A few flurries.
Monday Becoming cloudy with a few flurries possible in the afternoon.
Monday Night Cloudy with a few showers in the evening. Becoming partly to mostly cloudy. Winds turning S and becoming light to moderate.
Monday Cloudy with a few light showers possible in the afternoon. Light to moderate SE winds.
Monday Night Partly to mostly cloudy with a few showers lingering in the evening. Winds backing SSW and becoming light to moderate.
Monday Cloudy in the morning with a few light showers mainly near the volcanoes. Sun breaks and clearing in the afternoon. Moderate SE winds, strongest near the Crest.
Monday Night Increasing clouds overnight with a few isolated showers possible after midnight. Light to moderate S winds turning SW.
Monday Cloudy with a few isolated showers possible during the day. Light to moderate E flow. Ridgeline winds SE light to moderate.
Monday Night Cloudy with a few isolated showers possible. Light E flow through the pass.
Monday Cloudy with moments of filtered sunshine possible. Isolated showers. Light to moderate E flow decreasing in the afternoon. Moderate SE ridgeline winds decreasing slightly.
Monday Night Partly to mostly cloudy with a few isolated showers in the evening. Light E flow through the pass.
Monday Cloudy with a few very light snow showers possible. Light to moderate SE winds.
Monday Night Cloudy with a few very light snow showers in the evening. Light to moderate S winds turning SW.
Monday Cloudy with snow showers developing mainly near and south of the Wenatchee Mts. Light to moderate SE winds.
Monday Night Mostly cloudy with a few very light snow showers in the evening. Light to moderate SW winds.
Monday Cloudy with light showers in the morning. Some sun breaks possible in the afternoon. Moderate SE winds turning S.
Monday Night Increasing clouds with a few showers after midnight. Moderate SW winds decreasing slightly.
Monday Cloudy with light showers in the morning. Some sun breaks in the afternoon. Moderate S winds turning SW.
Monday Night Increasing clouds overnight with light showers. Moderate SW winds.

Issued: 6:56 AM PST Monday, February 19, 2024

Precipitation (in)

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

Issued: 6:56 AM PST Monday, February 19, 2024

Snow Level (ft)

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

Issued: 6:56 AM PST Monday, February 19, 2024

5000' Temperatures (°F)

Monday Monday Night
Max / Min Max / Min
Olympics 35 / 31 34 / 30
West North 38 / 32 36 / 31
West Central 38 / 29 37 / 30
West South 35 / 27 34 / 28
Stevens Pass 31 / 24 31 / 25
Snoqualmie Pass 31 / 27 31 / 27
East North 30 / 21 30 / 25
East Central 30 / 26 31 / 26
East South 33 / 25 32 / 28
Mt. Hood 36 / 30 35 / 30
Olympics 5000' Temperature Forecast
(Max / Min)
Monday 35 / 31
Monday Night 34 / 30
West North 5000' Temperature Forecast
(Max / Min)
Monday 38 / 32
Monday Night 36 / 31
West Central 5000' Temperature Forecast
(Max / Min)
Monday 38 / 29
Monday Night 37 / 30
West South 5000' Temperature Forecast
(Max / Min)
Monday 35 / 27
Monday Night 34 / 28
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Monday 31 / 24
Monday Night 31 / 25
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Monday 31 / 27
Monday Night 31 / 27
East North 5000' Temperature Forecast
(Max / Min)
Monday 30 / 21
Monday Night 30 / 25
East Central 5000' Temperature Forecast
(Max / Min)
Monday 30 / 26
Monday Night 31 / 26
East South 5000' Temperature Forecast
(Max / Min)
Monday 33 / 25
Monday Night 32 / 28
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Monday 36 / 30
Monday Night 35 / 30

Issued: 6:56 AM PST Monday, February 19, 2024

Ridgeline Winds (mph)

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

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

Previous forecast from Feb 18, 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’.