Issued: 2:38 PM PDT Sunday, April 19, 2026
by Dennis D'Amico

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

Weather Synopsis

An upper low meandering off the California coast will continue to rotate mid and high clouds over our region tonight and Monday. Areas near and north of I-90 have a better chance of seeing fewer clouds/clearer skies for a few hours tonight, and perhaps more radiative cooling than areas further south. Temperature inversions will set up with mid-mountain temperatures quite mild in the mid-40s to low-50s, with inversions and colder air pooling at lower elevations in basins/passes.  The strength of the inversions will be dependent on the aforementioned cloud cover and winds. 

The upper low will rotate showers into the Oregon coast on Monday but we'll squeeze out another dry day.  High temperatures will be about 5F warmer on Monday, with 5000' temperatures reaching into the upper 50s to low 60s. While there will be little change in the freezing level, weak onshore flow will begin to push in relatively cooler air along the central and southern west slopes of the Cascades later Monday afternoon. Breezy SE ridgeline winds in the morning should become lighter and out of the S-SW in the afternoon. 

As the upper low shifts ever closer to the coast Monday night, a few light showers may rotate into the Mt Hood area and southern WA Cascades overnight.  On Tuesday, look for scattered showers as the upper low moves inland.  A stronger marine push is likely Tuesday afternoon/night for moderate W-SW winds and a slow cooling trend. Above the marine layer, showers should rotate from SE to NW, and the odd thunderstorm can't be ruled out along the SE Cascades that moves toward the Cascade crest 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
Sunday Night Partly cloudy with scattered high clouds. Light to occasionally moderate ridgeline winds.
Monday Partly sunny to mostly cloudy with mid and high clouds. Light to occasionally moderate ridgeline winds.
Sunday Night Partly cloudy with scattered high clouds. Light to occasionally moderate ridgeline winds.
Monday Partly sunny to mostly cloudy with mid and high clouds.Light to occasionally moderate ridgeline winds.
Sunday Night Partly cloudy with scattered high clouds. Light to occasionally moderate ridgeline winds.
Monday Partly sunny to mostly cloudy with mid and high clouds. Light to occasionally moderate ridgeline winds.
Sunday Night Partly cloudy, becoming mostly cloudy late. Moderate to locally strong ridgeline winds.
Monday Partly sunny to mostly cloudy with mid and high clouds. Moderate ridgeline winds.
Sunday Night Partly cloudy with scattered high clouds. Light to moderate ESE winds at Pass level and ridgeline.
Monday Partly sunny to mostly cloudy with mid and high clouds. Light to moderate ESE winds at Pass level and ridgeline becoming S-SW in the afternoon.
Sunday Night Partly cloudy with scattered high clouds. Moderate ESE winds at Pass level and ridgeline.
Monday Partly sunny to mostly cloudy with mid and high clouds. Light to moderate ESE winds at Pass level and ridgeline becoming S-SW in the afternoon.
Sunday Night Partly cloudy with scattered high clouds. Light to occasionally moderate ridgeline winds.
Monday Partly sunny to mostly cloudy with mid and high clouds. Light to occasionally moderate ridgeline winds.
Sunday Night Partly cloudy with scattered high clouds. Light to moderate ridgeline winds.
Monday Partly sunny to mostly cloudy with mid and high clouds. Light to moderate ridgeline winds.
Sunday Night Partly cloudy with scattered high clouds. Light to moderate ridgeline winds.
Monday Partly sunny to mostly cloudy with mid and high clouds. Light to moderate ridgeline winds.
Sunday Night Partly cloudy, becoming mostly cloudy after midnight. Moderate ridgeline winds.
Monday Partly sunny to mostly cloudy with mid and high clouds. Moderate ridgeline winds.

Issued: 2:38 PM PDT Sunday, April 19, 2026

Precipitation (in)

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

Issued: 2:38 PM PDT Sunday, April 19, 2026

Snow Level (ft)

Sunday Evening* Sunday Night* Monday Morning* Monday Afternoon Monday Evening Monday Night Tuesday Morning Tuesday Afternoon
Olympics 10000' 10000' 10500' 10500' 9500' 9000' 9000' 8500'
West North 10000' 10000' 10000' 9500' 9500' 9500' 9500' 9000'
West Central 10500' 10500' 10500' 10500' 9500' 9500' 9000' 8500'
West South 10500' 10500' 10500' 10500' 10000' 9500' 9000' 8000'
Stevens Pass 10500' 10500' 10500' 10500' 10000' 9500' 9000' 8500'
Snoqualmie Pass 10500' 10500' 10500' 10500' 10000' 9500' 9000' 8500'
East North 10500' 10500' 10500' 10500' 10000' 9500' 9500' 9000'
East Central 10500' 10500' 10500' 10500' 10000' 9500' 9500' 9000'
East South 10500' 10500' 10500' 10500' 10000' 9500' 9000' 8500'
Mt. Hood 10500' 10500' 10000' 9500' 9500' 9500' 8500' 7000'
Olympics Elevation
Sunday Evening* 10000'
Sunday Night* 10000'
Monday Morning* 10500'
Monday Afternoon 10500'
Monday Evening 9500'
Monday Night 9000'
Tuesday Morning 9000'
Tuesday Afternoon 8500'
West North Elevation
Sunday Evening* 10000'
Sunday Night* 10000'
Monday Morning* 10000'
Monday Afternoon 9500'
Monday Evening 9500'
Monday Night 9500'
Tuesday Morning 9500'
Tuesday Afternoon 9000'
West Central Elevation
Sunday Evening* 10500'
Sunday Night* 10500'
Monday Morning* 10500'
Monday Afternoon 10500'
Monday Evening 9500'
Monday Night 9500'
Tuesday Morning 9000'
Tuesday Afternoon 8500'
West South Elevation
Sunday Evening* 10500'
Sunday Night* 10500'
Monday Morning* 10500'
Monday Afternoon 10500'
Monday Evening 10000'
Monday Night 9500'
Tuesday Morning 9000'
Tuesday Afternoon 8000'
Stevens Pass Elevation
Sunday Evening* 10500'
Sunday Night* 10500'
Monday Morning* 10500'
Monday Afternoon 10500'
Monday Evening 10000'
Monday Night 9500'
Tuesday Morning 9000'
Tuesday Afternoon 8500'
Snoqualmie Pass Elevation
Sunday Evening* 10500'
Sunday Night* 10500'
Monday Morning* 10500'
Monday Afternoon 10500'
Monday Evening 10000'
Monday Night 9500'
Tuesday Morning 9000'
Tuesday Afternoon 8500'
East North Elevation
Sunday Evening* 10500'
Sunday Night* 10500'
Monday Morning* 10500'
Monday Afternoon 10500'
Monday Evening 10000'
Monday Night 9500'
Tuesday Morning 9500'
Tuesday Afternoon 9000'
East Central Elevation
Sunday Evening* 10500'
Sunday Night* 10500'
Monday Morning* 10500'
Monday Afternoon 10500'
Monday Evening 10000'
Monday Night 9500'
Tuesday Morning 9500'
Tuesday Afternoon 9000'
East South Elevation
Sunday Evening* 10500'
Sunday Night* 10500'
Monday Morning* 10500'
Monday Afternoon 10500'
Monday Evening 10000'
Monday Night 9500'
Tuesday Morning 9000'
Tuesday Afternoon 8500'
Mt. Hood Elevation
Sunday Evening* 10500'
Sunday Night* 10500'
Monday Morning* 10000'
Monday Afternoon 9500'
Monday Evening 9500'
Monday Night 9500'
Tuesday Morning 8500'
Tuesday Afternoon 7000'

Issued: 2:38 PM PDT Sunday, April 19, 2026

5000' Temperatures (°F)

Sunday Night Monday
Max / Min Max / Min
Olympics 52 / 45 59 / 45
West North 52 / 45 61 / 47
West Central 51 / 45 59 / 45
West South 55 / 45 62 / 47
Stevens Pass 52 / 43 61 / 44
Snoqualmie Pass 53 / 44 60 / 45
East North 53 / 39 60 / 43
East Central 52 / 44 60 / 45
East South 53 / 44 60 / 44
Mt. Hood 55 / 47 60 / 47
Olympics 5000' Temperature Forecast
(Max / Min)
Sunday Night 52 / 45
Monday 59 / 45
West North 5000' Temperature Forecast
(Max / Min)
Sunday Night 52 / 45
Monday 61 / 47
West Central 5000' Temperature Forecast
(Max / Min)
Sunday Night 51 / 45
Monday 59 / 45
West South 5000' Temperature Forecast
(Max / Min)
Sunday Night 55 / 45
Monday 62 / 47
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Sunday Night 52 / 43
Monday 61 / 44
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Sunday Night 53 / 44
Monday 60 / 45
East North 5000' Temperature Forecast
(Max / Min)
Sunday Night 53 / 39
Monday 60 / 43
East Central 5000' Temperature Forecast
(Max / Min)
Sunday Night 52 / 44
Monday 60 / 45
East South 5000' Temperature Forecast
(Max / Min)
Sunday Night 53 / 44
Monday 60 / 44
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Sunday Night 55 / 47
Monday 60 / 47

Issued: 2:38 PM PDT Sunday, April 19, 2026

Ridgeline Winds (mph)

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

Issued: 2:38 PM PDT Sunday, April 19, 2026

Extended Weather Synopsis

As the upper low becomes an open upper level trough and moves inland Tuesday night, we'll see an increased chance for mountain showers overnight through Wednesday.  The south WA Cascades and especially Mt Hood could see periods of moderate precipitation as snow levels cool more in the south and stay milder closer to the Canadian border. 

The trough will shift to the Intermountain West on Thursday as upper level ridging builds offshore.  We should dry out quickly later Wednesday night into Thursday with freezing levels rising to around 7000'.  

Extended Snow Level (ft)

Tuesday Night Wednesday Wednesday Night Thursday
West North 7000' 5500' 5000' 7000'
Snoqualmie Pass 5500' 5000' 4500' 7000'
Mt. Hood 5000' 4500' 4500' 7000'
West North Elevation
Tuesday Night 7000'
Wednesday 5500'
Wednesday Night 5000'
Thursday 7000'
Snoqualmie Pass Elevation
Tuesday Night 5500'
Wednesday 5000'
Wednesday Night 4500'
Thursday 7000'
Mt. Hood Elevation
Tuesday Night 5000'
Wednesday 4500'
Wednesday Night 4500'
Thursday 7000'

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

Previous forecast from Apr 19, 2026

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’.

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