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Mountain Weather Forecast

Issued: 2:09 PM PST Sunday, November 24, 2024
by Robert Hahn

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

Weather Synopsis for Sunday night through Tuesday

The Pacific Northwest transitions gradually out of a wet and active pattern as we head into Thanksgiving week. A low churning 500 miles off the mouth of the Columbia River on Sunday afternoon continues to drift southward. SSW flow aloft downstream of the low enables weak perturbations riding northward to tap into some moisture associated with the remnants of California's recent atmospheric river. A SSW-NNE oriented band of precipitation targeting the central and southern Washington Cascades Sunday afternoon drifts northward. It weakens Sunday night and Monday, bringing continued light to occasionally moderate rain and snow with snow levels remaining relatively steady around 2500-3500 ft.

Monday night, the low kicks southeastward toward the southern Oregon Coast, limiting additional precipitation to very light and isolated snow showers by the overnight hours. Tuesday should bring mostly dry weather, although we expect some trapped low-level moisture maintaining clouds and a few flurries along the west slopes of the Cascades.

Weather Forecast

Olympics
Sunday Night Light rain and snow showers in the northern Olympics; moderate to heavy in the southern part.
Light rain and snow showers in the northern Olympics; moderate in the southern part.
West North
Sunday Night Periods of increasing light rain and snow.
Periods of decreasing light rain and snow.
West Central
Sunday Night Periods of light to moderate rain and snow.
Periods of light to moderate rain and snow.
West South
Sunday Night Periods of light to moderate rain and snow, heaviest on the volcanoes.
Periods of light to moderate rain and snow, heaviest on the volcanoes.
Stevens Pass
Sunday Night Periods of very light rain and snow. Light ridgeline and E wind at the Pass.
Periods of light rain or snow. Decreasing light ridgeline and E wind at the Pass.
Snoqualmie Pass
Sunday Night Periods of very light rain and snow. Light to occasionally moderate ridgeline and E wind at the Pass.
Periods of light rain or snow. Decreasing light ridgeline and E wind at the Pass.
East North
Sunday Night Periods of light snow.
Periods of light rain or snow.
East Central
Sunday Night Periods of light rain and snow.
Periods of light rain or snow.
East South
Sunday Night Periods of light rain and snow.
Periods of light rain or snow.
Mt. Hood
Sunday Night Periods of light rain and snow. Moderate ridgeline winds.
Light rain and snow at times. Moderate ridgeline winds.

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' 3000' 3000' None' 4000'
Sunday Night Snow Level* None' None' None' None' 2500' 2500' None' 3500'
Monday Morning Snow Level* None' None' None' None' 2500' 3000' None' 4000'
Monday Afternoon Snow Level* None' None' None' None' 3500' 3500' None' 4000'
Monday Evening Snow Level* None' None' None' None' 3000' 3000' None' 3500'
Monday Night Snow Level* None' None' None' None' 2500' 3000' None' 3000'
Tuesday Morning Snow Level None' None' None' None' 2500' 2500' None' 3000'
Hurricane Ridge Elevation
Sunday Evening Snow Level
None'
(Easterly Flow *)
Sunday Night Snow Level
None'
(Easterly Flow *)
Monday Morning Snow Level
None'
(Easterly Flow *)
Monday Afternoon Snow Level
None'
(Easterly Flow *)
Monday Evening Snow Level
None'
(Easterly Flow *)
Monday Night Snow Level
None'
(Easterly Flow *)
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Mt. Baker Elevation
Sunday Evening Snow Level
None'
(Easterly Flow *)
Sunday Night Snow Level
None'
(Easterly Flow *)
Monday Morning Snow Level
None'
(Easterly Flow *)
Monday Afternoon Snow Level
None'
(Easterly Flow *)
Monday Evening Snow Level
None'
(Easterly Flow *)
Monday Night Snow Level
None'
(Easterly Flow *)
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Washington Pass Elevation
Sunday Evening Snow Level
None'
(Easterly Flow *)
Sunday Night Snow Level
None'
(Easterly Flow *)
Monday Morning Snow Level
None'
(Easterly Flow *)
Monday Afternoon Snow Level
None'
(Easterly Flow *)
Monday Evening Snow Level
None'
(Easterly Flow *)
Monday Night Snow Level
None'
(Easterly Flow *)
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Leavenworth Elevation
Sunday Evening Snow Level
None'
(Easterly Flow *)
Sunday Night Snow Level
None'
(Easterly Flow *)
Monday Morning Snow Level
None'
(Easterly Flow *)
Monday Afternoon Snow Level
None'
(Easterly Flow *)
Monday Evening Snow Level
None'
(Easterly Flow *)
Monday Night Snow Level
None'
(Easterly Flow *)
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Stevens Pass Elevation
Sunday Evening Snow Level
3000'
(Easterly Flow *)
Sunday Night Snow Level
2500'
(Easterly Flow *)
Monday Morning Snow Level
2500'
(Easterly Flow *)
Monday Afternoon Snow Level
3500'
(Easterly Flow *)
Monday Evening Snow Level
3000'
(Easterly Flow *)
Monday Night Snow Level
2500'
(Easterly Flow *)
Tuesday Morning Snow Level
2500'
Tuesday Afternoon Snow Level
3000'
Snoqualmie Pass Elevation
Sunday Evening Snow Level
3000'
(Easterly Flow *)
Sunday Night Snow Level
2500'
(Easterly Flow *)
Monday Morning Snow Level
3000'
(Easterly Flow *)
Monday Afternoon Snow Level
3500'
(Easterly Flow *)
Monday Evening Snow Level
3000'
(Easterly Flow *)
Monday Night Snow Level
3000'
(Easterly Flow *)
Tuesday Morning Snow Level
2500'
Tuesday Afternoon Snow Level
3000'
Mt. Rainier & Crystal Elevation
Sunday Evening Snow Level
None'
(Easterly Flow *)
Sunday Night Snow Level
None'
(Easterly Flow *)
Monday Morning Snow Level
None'
(Easterly Flow *)
Monday Afternoon Snow Level
None'
(Easterly Flow *)
Monday Evening Snow Level
None'
(Easterly Flow *)
Monday Night Snow Level
None'
(Easterly Flow *)
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Mt. Hood Elevation
Sunday Evening Snow Level
4000'
(Easterly Flow *)
Sunday Night Snow Level
3500'
(Easterly Flow *)
Monday Morning Snow Level
4000'
(Easterly Flow *)
Monday Afternoon Snow Level
4000'
(Easterly Flow *)
Monday Evening Snow Level
3500'
(Easterly Flow *)
Monday Night Snow Level
3000'
(Easterly Flow *)
Tuesday Morning Snow Level
3000'
Tuesday Afternoon Snow Level
4000'

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

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 SSE None - None
Sunday Night --- None - None --- None - None --- None - None --- None - None SSW None - None
Monday Morning --- None - None --- None - None --- None - None --- None - None SSW 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 SSE None - None
Sunday Night SSW None - None
Monday Morning SSW None - None
Monday Afternoon SW 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 SSE None - None
Sunday Night SSW None - None
Monday Morning SSW None - None
Monday Afternoon SW 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.

Extended Weather Synopsis for Tuesday night through Thursday

Upper-level winds switch NWerly Tuesday night as flow rounds the back of an offshore ridge, resulting in slightly cooler than average temperatures for late November. Weak disturbances could impact parts of northern Washington at times from Tuesday night through Thursday. The timing of any individual disturbance is difficult to pinpoint, but expect these to bring some weak convergence bands of light snowfall between the Skagit and Stevens Pass.

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 I Extended Weather

Previous forecast from Nov. 23, 2024

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