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Mountain Weather Forecast

Issued: 2:42 PM PST Sunday, April 7, 2024
by Robert Hahn

Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather

Weather Synopsis for Sunday night through Tuesday

Remnant post-frontal rain and snow showers continue for the Cascades Sunday evening, mostly ending overnight. Winds gradually shift SWerly ahead of the next system.

An active weather pattern develops at the beginning of the work week. A moisture-laden frontal system flattens a broad offshore ridge and toward our region from the WNW. As a warm front approaches on Monday, light to moderate rain and snow increase gradually spread throughout the mountains of Washington State. The Western Olympics, Mt Baker, and the Mountain Loop stand to pick up the most moisture (in the 0.25" - 0.5" of snow water equivalent range). Snow levels rise to 3500-4500 ft by the afternoon.

 The warm front transits the region Monday night with moderate to heavy rain, snow and peak snow levels in the 4000-5500 ft range (lower in the north). Light to moderate rain and snow should spill over onto the east slopes of the Cascades and Mt Hood.

Expect decreasing light to moderate rain and snow on Tuesday as a cold front brings slightly cooler and drier air into the region from the northwest. Snow levels should drop to 3500-4500 ft.

 

Weather Forecast

Olympics
Sunday Night Cloudy with light rain and snow developing western part, mostly dry eastern part, and a chance of isolated sprinkles or flurries around Hurricane Ridge.
Increasing light rain and snow (moderate western part).
West North
Sunday Night Decreasing light rain and snow showers.
Cloudy with light rain and snow in the morning becoming moderate in the afternoon.
West Central
Sunday Night Decreasing light rain and snow showers.
Cloudy with light rain and snow developing the morning and becoming light to moderate in the afternoon.
West South
Sunday Night Light rain and snow showers decrease or end overnight.
Cloudy with light rain and snow developing in the morning and increasing during the afternoon.
Stevens Pass
Sunday Night Decreasing light rain and snow showers. Light ridgeline and W wind at the Pass.
Cloudy with light rain and snow developing in the morning and increasing during the afternoon. Light ridgeline and W wind at the Pass.
Snoqualmie Pass
Sunday Night Decreasing light rain and snow showers. Light to moderate ridgeline and light W wind at the Pass.
Cloudy with light rain and snow developing in the morning and increasing during the afternoon. Light to moderate ridgeline and light W wind at the Pass.
East North
Sunday Night Mostly cloudy.
Cloudy with light rain and snow developing from late morning onward as ridgeline winds increase into the moderate range.
East Central
Sunday Night Mostly cloudy with a few showers ending near the Cascade Crest. Decreasing light to moderate ridgeline winds.
Cloudy with light rain and snow developing from late morning onward as ridgeline winds increase into the moderate range.
East South
Sunday Night Mostly cloudy with a few showers ending near the Cascade Crest.
Cloudy with a chance of very light rain or snow developing in the afternoon.
Mt. Hood
Sunday Night Mostly cloudy with rain or snow showers decreasing or ending by midnight.
Cloudy with a slight chance of very light rain or snow developing late in the day.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Sunday Evening Snow Level None' None' None' None' 3500' 3500' None' 4000'
Sunday Night Snow Level None' None' None' None' 2500' 2500' None' 3500'
Monday Morning Snow Level None' None' None' None' 2500' 2500' None' 3500'
Monday Afternoon Snow Level None' None' None' None' 4000' 4000' None' 4500'
Monday Evening Snow Level None' None' None' None' 4500' 4500' None' 5500'
Monday Night Snow Level None' None' None' None' 4500' 4500' None' 5500'
Tuesday Morning Snow Level None' None' None' None' 4500' 4500' None' 5000'
Hurricane Ridge Elevation
Sunday Evening Snow Level
None'
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Mt. Baker Elevation
Sunday Evening Snow Level
None'
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Washington Pass Elevation
Sunday Evening Snow Level
None'
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Leavenworth Elevation
Sunday Evening Snow Level
None'
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Stevens Pass Elevation
Sunday Evening Snow Level
3500'
Sunday Night Snow Level
2500'
Monday Morning Snow Level
2500'
Monday Afternoon Snow Level
4000'
Monday Evening Snow Level
4500'
Monday Night Snow Level
4500'
Tuesday Morning Snow Level
4500'
Tuesday Afternoon Snow Level
4000'
Snoqualmie Pass Elevation
Sunday Evening Snow Level
3500'
Sunday Night Snow Level
2500'
Monday Morning Snow Level
2500'
Monday Afternoon Snow Level
4000'
Monday Evening Snow Level
4500'
Monday Night Snow Level
4500'
Tuesday Morning Snow Level
4500'
Tuesday Afternoon Snow Level
4000'
Mt. Rainier & Crystal Elevation
Sunday Evening Snow Level
None'
Sunday Night Snow Level
None'
Monday Morning Snow Level
None'
Monday Afternoon Snow Level
None'
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Mt. Hood Elevation
Sunday Evening Snow Level
4000'
Sunday Night Snow Level
3500'
Monday Morning Snow Level
3500'
Monday Afternoon Snow Level
4500'
Monday Evening Snow Level
5500'
Monday Night Snow Level
5500'
Tuesday Morning Snow Level
5000'
Tuesday Afternoon Snow Level
5000'

* Easterly flow in the Cascade Passes can cause locally lower Snow or Freezing levels than areas further west.
Freezing Level is when no precipitation is forecast.

Precipitation Forecast

Sunday Night Monday Monday Night Tuesday
5 pm - 5 am 5 am - 5 pm 5 pm - 5 am 5 am - 5 pm
Hurricane Ridge LT 0.10 LT 0.25 0.25 LT 0.10
Mt Baker Ski Area LT 0.25 0.50 0.75 - 1.00 0.25
Mt. Loop - Barlow Pass LT 0.10 0.25 1.00 - 1.50 0.50 - 0.75
Stevens Pass LT 0.10 LT 0.25 0.75 0.25
Snoqualmie Pass LT 0.10 0.25 0.75 0.25
Crystal Mt LT 0.10 LT 0.10 LT 0.10 LT 0.10
Paradise LT 0.10 LT 0.25 0.75 - 1.00 0.25
White Pass LT 0.10 LT 0.10 0.25 - 0.50 LT 0.10
Washington Pass LT 0.10 LT 0.25 0.25 - 0.50 LT 0.10
Mission Ridge 0 0 LT 0.25 LT 0.10
Salmon la Sac - Gallagher Head LT 0.10 LT 0.25 0.25 - 0.50 LT 0.25
Tieton River - Darland Mt. LT 0.10 LT 0.10 LT 0.25 LT 0.10
Mt Hood Meadows LT 0.10 0 LT 0.25 LT 0.10
LT 0.10 0 LT 0.25 LT 0.25
Hurricane Ridge Precipitation Forecast
Sunday Night LT 0.10
Monday LT 0.25
Monday Night 0.25
Tuesday LT 0.10
Mt Baker Ski Area Precipitation Forecast
Sunday Night LT 0.25
Monday 0.50
Monday Night 0.75 - 1.00
Tuesday 0.25
Mt. Loop - Barlow Pass Precipitation Forecast
Sunday Night LT 0.10
Monday 0.25
Monday Night 1.00 - 1.50
Tuesday 0.50 - 0.75
Stevens Pass Precipitation Forecast
Sunday Night LT 0.10
Monday LT 0.25
Monday Night 0.75
Tuesday 0.25
Snoqualmie Pass Precipitation Forecast
Sunday Night LT 0.10
Monday 0.25
Monday Night 0.75
Tuesday 0.25
Crystal Mt Precipitation Forecast
Sunday Night LT 0.10
Monday LT 0.10
Monday Night LT 0.10
Tuesday LT 0.10
Paradise Precipitation Forecast
Sunday Night LT 0.10
Monday LT 0.25
Monday Night 0.75 - 1.00
Tuesday 0.25
White Pass Precipitation Forecast
Sunday Night LT 0.10
Monday LT 0.10
Monday Night 0.25 - 0.50
Tuesday LT 0.10
Washington Pass Precipitation Forecast
Sunday Night LT 0.10
Monday LT 0.25
Monday Night 0.25 - 0.50
Tuesday LT 0.10
Mission Ridge Precipitation Forecast
Sunday Night 0
Monday 0
Monday Night LT 0.25
Tuesday LT 0.10
Salmon la Sac - Gallagher Head Precipitation Forecast
Sunday Night LT 0.10
Monday LT 0.25
Monday Night 0.25 - 0.50
Tuesday LT 0.25
Tieton River - Darland Mt. Precipitation Forecast
Sunday Night LT 0.10
Monday LT 0.10
Monday Night LT 0.25
Tuesday LT 0.10
Mt Hood Meadows Precipitation Forecast
Sunday Night LT 0.10
Monday 0
Monday Night LT 0.25
Tuesday LT 0.10
Timberline Precipitation Forecast
Sunday Night LT 0.10
Monday 0
Monday Night LT 0.25
Tuesday LT 0.25

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Sunday Evening --- None - None --- None - None --- None - None --- None - None WSW None - None
Sunday Night --- None - None --- None - None --- None - None --- None - None WSW None - None
Monday Morning --- None - None --- None - None --- None - None --- None - None WSW None - None
Hurricane Ridge Elevation
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Baker Elevation
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Stevens and Snoqualmie Pass Elevation
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Rainier Elevation
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Hood Elevation
Sunday Evening WSW None - None
Sunday Night WSW None - None
Monday Morning WSW None - None
Monday Afternoon WSW None - None
Hurricane Ridge Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Baker Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Rainier Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Hood Direction - Speed
Sunday Evening WSW None - None
Sunday Night WSW None - None
Monday Morning WSW None - None
Monday Afternoon WSW None - None

Directions above indicate the direction the wind blows from on the 16-point cardinal scale. These winds indicate "free" winds, or those winds in the atmosphere not influenced by terrain. Topographical effects may produce greater or lower wind speeds in certain locations as well as significant variations in direction.

Free Winds at 9000' (mph)

Mt. Baker Washington Pass Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Sunday Evening --- None - None --- None - None --- None - None --- None - None --- None - None
Sunday Night --- None - None --- None - None --- None - None --- None - None --- None - None
Monday Morning --- None - None --- None - None --- None - None --- None - None --- None - None
Mt. Baker Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Washington Pass Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Rainier Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None
Mt. Hood Direction - Speed
Sunday Evening --- None - None
Sunday Night --- None - None
Monday Morning --- None - None
Monday Afternoon --- None - None

Extended Weather Synopsis for Tuesday night through Thursday

The previously flattened ridge rebounds Tuesday night, bringing increasingly warm and dry conditions. Freezing levels likely peak Wednesday night in the 5000-9000 ft range. A frontal system approaching on Thursday will bring increased clouds in the morning before light rain and snow arrive with cooling temperatures in the afternoon.

Extended Snow/Freezing Levels

Mt. Baker Snoqualmie Pass Mt. Hood Easterly Flow *
Tuesday Night Snow Level None' - None' None' - None' None' - None'
Wednesday Snow Level None' - None' None' - None' None' - None'
Wednesday Night Snow Level None' - None' None' - None' None' - None'
Mt. Baker Elevation
Tuesday Night Snow Level
None' - None'
Wednesday Snow Level
None' - None'
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Snoqualmie Pass Elevation
Tuesday Night Snow Level
None' - None'
Wednesday Snow Level
None' - None'
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Mt. Hood Elevation
Tuesday Night Snow Level
None' - None'
Wednesday Snow Level
None' - None'
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'

* Easterly flow in the Cascade Passes can cause locally lower Snow or Freezing levels than areas further west.
Freezing Level is when no precipitation is forecast.

Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather

Previous forecast from April 7, 2024

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