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Mountain Weather Forecast

Issued: 2:31 PM PST Monday, March 24, 2025
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 Monday night through Wednesday

The narrowing and weakening band of moisture associated with the atmospheric river gradually lifts northward as a broad west coast ridge expands northward. Moderate rain (and highest-elevation snow) will linger from the mountain loop to the Canadian Border, with light precipitation gradually ending in the central Cascades. With the faucet aimed further north, Washington Pass is the only area on the east slopes likely to produce substantial precipitation. Snow levels rise to 7000-8000 ft as light to moderate W ridgeline winds gradually decrease.

Tuesday may feel more like summer than the 5th day of Spring. 5000 ft temperates start the day around 40F and rise to 45-55F or more by the afternoon. Some low clouds linger early in the day for Mt Baker and the Mountain Loop, but the sunny start in other areas will take over the entire region as the day progresses. Low-level E flow increases as the day progresses.

Clouds will increase over the Olympics late Tuesday night as the next low approaches.

Wednesday will be an atypical day in the Cascade Cool season. Clouds will increase over mountainous terrain in the morning hours. By mid to late morning, expect showers to develop and drift to the west side of the Cascades on SSE flow. This process will increase with widespread showers and isolated potentially strong thunderstorms developing. This could include small hail or damaging winds. It would be a good idea to stay tuned to the forecast as it evolves before venturing into alpine areas during this weather pattern.

Weather Forecast

Olympics
Monday Night Decreasing light rain showers.
Some low clouds early, then filtered sunshine. Unseasonably warm.
West North
Monday Night Periods of generally light rain.
Some low clouds and showers early, then filtered sunshine. Unseasonably warm.
West Central
Monday Night Periods of light rain. Light to moderate ridgeline winds.
Some low clouds and a slight chance of showers early, then filtered sunshine. Unseasonably warm.
West South
Monday Night Periods of light rain end overnight.
Filtered sunshine transitioning to full sun. Unseasonably warm.
Stevens Pass
Monday Night Periods of light rain taper overnight. Light to moderate ridgeline and light W wind at the Pass.
A few clouds early, then mostly sunny. Unseasonably warm. Light ridgeline and E winds at the Pass.
Snoqualmie Pass
Monday Night Periods of light rain taper overnight. Light to moderate ridgeline and light W wind at the Pass.
A few clouds early, then mostly sunny. Unseasonably warm. Light ridgeline and E winds at the Pass.
East North
Monday Night Periods of light rain. Moderate ridgeline winds.
A few clouds early, then filtered sunshine. Unseasonably warm.
East Central
Monday Night Light rain in the evening near the Cascade Crest. Otherwise partly cloudy. Decreasing moderate ridgeline winds.
A few clouds early, then filtered sunshine transitioning to full sun. Unseasonably warm.
East South
Monday Night Partly cloudy.
Filtered sunshine transitioning to full sun. Unseasonably warm.
Mt. Hood
Monday Night Partly cloudy.
Mostly sunny. Unseasonably warm.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Monday Evening Snow Level None' None' None' None' 7500' 7500' None' 9500'
Monday Night Snow Level None' None' None' None' 7500' 8000' None' 10000'
Tuesday Morning Snow Level* None' None' None' None' 9000' 9000' None' 10500'
Tuesday Afternoon Snow Level* None' None' None' None' 9500' 10000' None' 11000'
Tuesday Evening Snow Level* None' None' None' None' 10000' 10500' None' 11000'
Tuesday Night Snow Level* None' None' None' None' 10500' 10500' None' 11000'
Wednesday Morning Snow Level* None' None' None' None' 8500' 8500' None' 11000'
Hurricane Ridge Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
(Easterly Flow *)
Tuesday Afternoon Snow Level
None'
(Easterly Flow *)
Tuesday Evening Snow Level
None'
(Easterly Flow *)
Tuesday Night Snow Level
None'
(Easterly Flow *)
Wednesday Morning Snow Level
None'
(Easterly Flow *)
Wednesday Afternoon Snow Level
None'
(Easterly Flow *)
Mt. Baker Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
(Easterly Flow *)
Tuesday Afternoon Snow Level
None'
(Easterly Flow *)
Tuesday Evening Snow Level
None'
(Easterly Flow *)
Tuesday Night Snow Level
None'
(Easterly Flow *)
Wednesday Morning Snow Level
None'
(Easterly Flow *)
Wednesday Afternoon Snow Level
None'
(Easterly Flow *)
Washington Pass Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
(Easterly Flow *)
Tuesday Afternoon Snow Level
None'
(Easterly Flow *)
Tuesday Evening Snow Level
None'
(Easterly Flow *)
Tuesday Night Snow Level
None'
(Easterly Flow *)
Wednesday Morning Snow Level
None'
(Easterly Flow *)
Wednesday Afternoon Snow Level
None'
(Easterly Flow *)
Leavenworth Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
(Easterly Flow *)
Tuesday Afternoon Snow Level
None'
(Easterly Flow *)
Tuesday Evening Snow Level
None'
(Easterly Flow *)
Tuesday Night Snow Level
None'
(Easterly Flow *)
Wednesday Morning Snow Level
None'
(Easterly Flow *)
Wednesday Afternoon Snow Level
None'
(Easterly Flow *)
Stevens Pass Elevation
Monday Evening Snow Level
7500'
Monday Night Snow Level
7500'
Tuesday Morning Snow Level
9000'
(Easterly Flow *)
Tuesday Afternoon Snow Level
9500'
(Easterly Flow *)
Tuesday Evening Snow Level
10000'
(Easterly Flow *)
Tuesday Night Snow Level
10500'
(Easterly Flow *)
Wednesday Morning Snow Level
8500'
(Easterly Flow *)
Wednesday Afternoon Snow Level
8500'
(Easterly Flow *)
Snoqualmie Pass Elevation
Monday Evening Snow Level
7500'
Monday Night Snow Level
8000'
Tuesday Morning Snow Level
9000'
(Easterly Flow *)
Tuesday Afternoon Snow Level
10000'
(Easterly Flow *)
Tuesday Evening Snow Level
10500'
(Easterly Flow *)
Tuesday Night Snow Level
10500'
(Easterly Flow *)
Wednesday Morning Snow Level
8500'
(Easterly Flow *)
Wednesday Afternoon Snow Level
8500'
(Easterly Flow *)
Mt. Rainier & Crystal Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
(Easterly Flow *)
Tuesday Afternoon Snow Level
None'
(Easterly Flow *)
Tuesday Evening Snow Level
None'
(Easterly Flow *)
Tuesday Night Snow Level
None'
(Easterly Flow *)
Wednesday Morning Snow Level
None'
(Easterly Flow *)
Wednesday Afternoon Snow Level
None'
(Easterly Flow *)
Mt. Hood Elevation
Monday Evening Snow Level
9500'
Monday Night Snow Level
10000'
Tuesday Morning Snow Level
10500'
(Easterly Flow *)
Tuesday Afternoon Snow Level
11000'
(Easterly Flow *)
Tuesday Evening Snow Level
11000'
(Easterly Flow *)
Tuesday Night Snow Level
11000'
(Easterly Flow *)
Wednesday Morning Snow Level
11000'
(Easterly Flow *)
Wednesday Afternoon Snow Level
8500'
(Easterly Flow *)

* 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

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

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Monday Evening --- None - None --- None - None --- None - None --- None - None WSW None - None
Monday Night --- None - None --- None - None --- None - None --- None - None SW None - None
Tuesday Morning --- None - None --- None - None --- None - None --- None - None SSW None - None
Hurricane Ridge Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Baker Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Stevens and Snoqualmie Pass Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Rainier Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Hood Elevation
Monday Evening WSW None - None
Monday Night SW None - None
Tuesday Morning SSW None - None
Tuesday Afternoon S None - None
Hurricane Ridge Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Baker Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Rainier Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Hood Direction - Speed
Monday Evening WSW None - None
Monday Night SW None - None
Tuesday Morning SSW None - None
Tuesday Afternoon S 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
Monday Evening --- None - None --- None - None --- None - None --- None - None --- None - None
Monday Night --- None - None --- None - None --- None - None --- None - None --- None - None
Tuesday Morning --- None - None --- None - None --- None - None --- None - None --- None - None
Mt. Baker Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Washington Pass Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Rainier Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Hood Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None

Extended Weather Synopsis for Wednesday night through Friday

The main frontal system moves into the area Wednesday night with moderate rain/snow (possibly thunderstorms early) and decreasing snow levels overnight. The offshore closed low continues to bring rain and snow showers into the region with more seasonable temperatures Thursday through Friday as SSW flow shifts WSW.

Extended Snow/Freezing Levels

Mt. Baker Snoqualmie Pass Mt. Hood Easterly Flow *
Wednesday Night Snow Level None' - None' None' - None' None' - None'
Thursday Snow Level None' - None' None' - None' None' - None'
Thursday Night Snow Level None' - None' None' - None' None' - None' *
Mt. Baker Elevation
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Thursday Night Snow Level
None' - None'
(Easterly Flow *)
Friday Snow Level
None' - None'
Snoqualmie Pass Elevation
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Thursday Night Snow Level
None' - None'
(Easterly Flow *)
Friday Snow Level
None' - None'
Mt. Hood Elevation
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Thursday Night Snow Level
None' - None'
(Easterly Flow *)
Friday 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 March 24, 2025

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.