Mountain Weather Forecast
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I
Weather Synopsis for Monday & Tuesday
Monday will be the final day with a cold trough overhead. A surface low moved into the northern Cascades overnight, increasing W winds and mountain-induced snowfall for the W slopes of the Cascades in its wake. Vancouver Island Convergence focuses on Mt Baker areas, and a Puget Sound Convergence near Stevens Pass is evident on the radar. As light to moderate ridgeline winds decrease, this more sustained snowfall should ease as we approach the late morning hours. Mid-morning and afternoon snow showers should focus more on the Mt Hood to Mt Rainier areas. Snow levels fluctuate between 0 and 1000 ft, but freezing levels are expected to rise up to 2000 ft (or slightly higher along the E slopes of the Cascades) during drier breaks in the action. Snow ratios remain high, so expect significant snowfall despite the unimpressive water numbers.
Monday evening, snow shower activity focuses on the Mt Rainier to Mt Hood areas, with a weak surface low possibly touching off some light upslope snowfall for the northern Olympics as it moves onshore. The upper trough begins to shift eastward overnight, so expect clearing skies from N to south.
Tuesday should be a cool but pleasant day. Light NW flow aloft brings mostly sunny skies in the morning with a partial cloud buildup and isolated convective snow showers in the afternoon.
Weather Forecast
Olympics
| Monday | Mostly sunny to start, then becoming mostly cloudy with light snow showers from mid-morning onwards. |
| Monday Night | Cloudy with snow showers during the evening (light upslope snow for the northern Olympics). Clearing skies overnight. |
West North
| Monday | Moderate snow in the morning becomes light and tapers during the afternoon. Sun breaks increasing after 2 PM. |
| Monday Night | Mostly cloudy with isolated snow showers in the evening, then partly cloudy. |
West Central
| Monday | Moderate snow (locally heavy in convergence bands) in the morning becomes light and tapers during the afternoon with a few sun breaks. |
| Monday Night | Mostly cloudy with isolated snow showers in the evening, then partly cloudy. |
West South
| Monday | Light snow early with light to occasionally moderate snow showers from mid-morning onward. |
| Monday Night | Light to moderate snow tapers by midnight, then partially clearing skies. |
Stevens Pass
| Monday | Mostly cloudy with decreasing light to occasionally moderate snow, becoming showery by the afternoon. Light to moderate ridgeline winds become light. Light W winds at the Pass. |
| Monday Night | Mostly cloudy with isolated snow showers in the evening, then clearing skies overnight. Light ridgeline and W wind at the Pass. |
Snoqualmie Pass
| Monday | Mostly cloudy with decreasing light to occasionally moderate snow, becoming showery by the afternoon. Decreasing light to moderate ridgeline and light W wind at the Pass. |
| Monday Night | Mostly cloudy with isolated snow showers in the evening, then clearing skies overnight. Light ridgeline and W wind at the Pass. |
East North
| Monday | Periods of light snow or snow showers. |
| Monday Night | Partly cloudy with isolated snow showers in the evening, then clearing skies overnight. |
East Central
| Monday | Periods of light snow or snow showers, mainly western part. Moderate ridgeline winds decrease into the light to moderate range. |
| Monday Night | Partly cloudy with isolated snow showers near the Cascade Crest in the evening, then clearing skies overnight. |
East South
| Monday | Periods of light snow or snow showers, mainly western part. |
| Monday Night | Decreasing isolated snow showers near the Cascade Crest. |
Mt. Hood
| Monday | Moderate snow showers with sun breaks possible during breaks in the shower activity. Moderate ridgeline winds with strong gusts in the morning, decreasing into the light to occasionally moderate range. |
| Monday Night | Decreasing primarily light snow showers taper or end. |
Issued: 7:06 AM PST Monday, March 4, 2024
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Morning | Snow Level | None' | None' | None' | None' | 500' | 500' | None' | 500' |
| Monday Afternoon | Snow Level | None' | None' | None' | None' | 500' | 500' | None' | 1000' |
| Monday Evening | Snow Level | None' | None' | None' | None' | 500' | 500' | None' | 1000' |
| Monday Night | Snow Level | None' | None' | None' | None' | 500' | 500' | None' | 500' |
| Tuesday Morning | Snow Level | None' | None' | None' | None' | 500' | 500' | None' | 1000' |
| Tuesday Afternoon | Snow Level | None' | None' | None' | None' | 2500' | 2000' | None' | 3000' |
| Hurricane Ridge | Elevation |
|---|---|
| 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 |
|---|---|
| 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 |
|---|---|
| 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 |
|---|---|
| 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 |
|---|---|
| Monday Morning |
Snow Level 500' |
| Monday Afternoon |
Snow Level 500' |
| Monday Evening |
Snow Level 500' |
| Monday Night |
Snow Level 500' |
| Tuesday Morning |
Snow Level 500' |
| Tuesday Afternoon |
Snow Level 2500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 500' |
| Monday Afternoon |
Snow Level 500' |
| Monday Evening |
Snow Level 500' |
| Monday Night |
Snow Level 500' |
| Tuesday Morning |
Snow Level 500' |
| Tuesday Afternoon |
Snow Level 2000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| 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 |
|---|---|
| Monday Morning |
Snow Level 500' |
| Monday Afternoon |
Snow Level 1000' |
| Monday Evening |
Snow Level 1000' |
| Monday Night |
Snow Level 500' |
| Tuesday Morning |
Snow Level 1000' |
| Tuesday Afternoon |
Snow Level 3000' |
* 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 | Monday Night | Tuesday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | LT 0.10 | 0 |
| Mt Baker Ski Area | 0.25 | LT 0.10 | 0 |
| Mt. Loop - Barlow Pass | 0.25 - 0.50 | LT 0.10 | 0 |
| Stevens Pass | LT 0.25 | LT 0.10 | 0 |
| Snoqualmie Pass | LT 0.25 | LT 0.10 | 0 |
| Crystal Mt | LT 0.10 | LT 0.10 | 0 |
| Paradise | 0.25 | LT 0.10 | LT 0.10 |
| White Pass | LT 0.25 | LT 0.10 | 0 |
| Washington Pass | LT 0.10 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 |
| Salmon la Sac - Gallagher Head | LT 0.25 | 0 | 0 |
| Tieton River - Darland Mt. | LT 0.10 | LT 0.10 | 0 |
| Mt Hood Meadows | 0.25 | LT 0.10 | LT 0.10 |
| Timberline | 0.25 | LT 0.10 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Tuesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday | 0.25 |
| Monday Night | LT 0.10 |
| Tuesday | 0 |
| Mt. Loop - Barlow Pass | Precipitation Forecast |
|---|---|
| Monday | 0.25 - 0.50 |
| Monday Night | LT 0.10 |
| Tuesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | LT 0.10 |
| Tuesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | LT 0.10 |
| Tuesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Tuesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday | 0.25 |
| Monday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | LT 0.10 |
| Tuesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | 0 |
| Tuesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Salmon la Sac - Gallagher Head | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | 0 |
| Tuesday | 0 |
| Tieton River - Darland Mt. | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Tuesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday | 0.25 |
| Monday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday | 0.25 |
| Monday Night | LT 0.10 |
| Tuesday | LT 0.10 |
LT = less than; WE or Water equivalent is the liquid water equivalent of melted snow in hundredths of inches. As a rough approximation 1 inch of snow = about .10 inches WE, or 10 inches of snow = about 1 inch WE.
Issued: 7:06 AM PST Monday, March 4, 2024
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | --- None - None | --- None - None | --- None - None | --- None - None | W None - None |
| Monday Afternoon | --- None - None | --- None - None | --- None - None | --- None - None | WSW None - None |
| Monday Evening | --- None - None | --- None - None | --- None - None | --- None - None | W None - None |
| Monday Night | --- None - None | --- None - None | --- None - None | --- None - None | W None - None |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning | --- None - None |
| Monday Afternoon | --- None - None |
| Monday Evening | --- None - None |
| Monday Night | --- None - None |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning | --- None - None |
| Monday Afternoon | --- None - None |
| Monday Evening | --- None - None |
| Monday Night | --- None - None |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning | --- None - None |
| Monday Afternoon | --- None - None |
| Monday Evening | --- None - None |
| Monday Night | --- None - None |
| Mt. Rainier | Elevation |
|---|---|
| Monday Morning | --- None - None |
| Monday Afternoon | --- None - None |
| Monday Evening | --- None - None |
| Monday Night | --- None - None |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning | W None - None |
| Monday Afternoon | WSW None - None |
| Monday Evening | W None - None |
| Monday Night | W None - None |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Morning | --- None - None |
| Monday Afternoon | --- None - None |
| Monday Evening | --- None - None |
| Monday Night | --- None - None |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | --- None - None |
| Monday Afternoon | --- None - None |
| Monday Evening | --- None - None |
| Monday Night | --- None - None |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | --- None - None |
| Monday Afternoon | --- None - None |
| Monday Evening | --- None - None |
| Monday Night | --- None - None |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | --- None - None |
| Monday Afternoon | --- None - None |
| Monday Evening | --- None - None |
| Monday Night | --- None - None |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | W None - None |
| Monday Afternoon | WSW None - None |
| Monday Evening | W None - None |
| Monday Night | W 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I
Previous forecast from March 3, 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.