Mountain Weather Forecast
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Thursday night through Saturday
A Pacific frontal system positioned offshore continues to slow and weaken as it attempts to move inland. The front is standing up (becoming more N-S oriented) as the parent low positioned offshore drops south and away from the PNW. The front has been slow to arrive today, resulting in more filtered sunshine, milder temperatures and less precipitation making its way inland than previously forecast. This slower and less wet trend will likely continue overnight with only light precipitation expected over the area as the frontal boundary washes out. It will be another mild night as well with freezing levels in the 3500-6500' range, with the coolest temperatures closer to the low over the Olympic peninsula.
The upper low will drift towards northern CA on Friday and turn the flow aloft over the PNW to southerly. We should see plenty of cloud cover to start the day but the clouds should start to thin with more sunshine pouring through in the afternoon, especially near and west of the Cascade crest with more filtered sunshine along the east slopes of the Cascades. We may see a few isolated showers, especially near the Mt Hood area. Ridgeline winds will be light to moderate out of the SE-S and high temperatures should warm a few degrees over Thursday.
We'll be between the upper low's waning influence and westerly zonal flow to the north on Saturday. This should set the stage for a warm day with freezing levels popping up to 8000-10000' and 5000' temperatures in the 40s and 50s. While mostly sunny skies are expected there may be some surprise additional cloud cover if the upper low continues to send moisture northward on Saturday and perhaps even scattered showers for southern areas like Mt Hood.
Weather Forecast
Olympics
| Thursday Night | Cloudy with scattered light rain and snow showers. Moderate ridgeline winds easing after midnight. |
| Friday | Cloudy in the morning, becoming partly to mostly sunny in the afternoon. Light to occasionally moderate ridgeline winds. |
West North
| Thursday Night | Cloudy with scattered light rain and snow showers. Moderate to strong ridgeline winds easing after midnight. |
| Friday | Cloudy in the morning, becoming partly to mostly sunny in the afternoon. Light to occasionally moderate ridgeline winds. |
West Central
| Thursday Night | Cloudy with scattered light rain and snow showers. Moderate ridgeline winds easing after midnight. |
| Friday | Cloudy in the morning, becoming partly to mostly sunny in the afternoon. Light to occasionally moderate ridgeline winds. |
West South
| Thursday Night | Cloudy with scattered light rain and snow showers. Moderate ridgeline winds. |
| Friday | Cloudy in the morning, becoming partly to mostly sunny in the afternoon. Light to occasionally moderate ridgeline winds. |
Stevens Pass
| Thursday Night | Cloudy with scattered light rain and snow showers. Moderate SW-W ridgeline and Pass level winds easing after midnight. |
| Friday | Cloudy in the morning, becoming partly to mostly sunny in the afternoon. Light to occasionally moderate ridgeline winds. |
Snoqualmie Pass
| Thursday Night | Cloudy with scattered light rain and snow showers. Moderate SW-W ridgeline and Pass level winds easing after midnight. |
| Friday | Cloudy in the morning, becoming partly to mostly sunny in the afternoon. Light to occasionally moderate ridgeline winds. |
East North
| Thursday Night | Cloudy with scattered light rain and snow showers. |
| Friday | Cloudy in the morning, becoming partly to mostly sunny in the afternoon. Light to occasionally moderate ridgeline winds. |
East Central
| Thursday Night | Cloudy with a chance of light rain and snow showers. Moderate ridgeline winds easing after midnight. |
| Friday | Cloudy in the morning, becoming partly sunny in the afternoon with filtered sunshine. Light to occasionally moderate ridgeline winds. |
East South
| Thursday Night | Cloudy with a chance of light rain and snow showers. Moderate ridgeline winds easing after midnight. |
| Friday | Cloudy in the morning, becoming partly sunny in the afternoon with filtered sunshine. Light to occasionally moderate ridgeline winds. |
Mt. Hood
| Thursday Night | Cloudy with a chance of light rain and snow showers. Moderate ridgeline winds. |
| Friday | Cloudy in the morning, becoming mostly cloudy in the afternoon with sunbreaks. Chance of light rain or snow showers. Moderate ridgeline winds. |
Issued: 2:37 PM PST Thursday, April 11, 2024
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Thursday Evening | Snow Level | None' | None' | None' | None' | 5000' | 5000' | None' | 6500' |
| Thursday Night | Snow Level | None' | None' | None' | None' | 4500' | 4500' | None' | 6000' |
| Friday Morning | Snow Level | None' | None' | None' | None' | 5000' | 5000' | None' | 6500' |
| Friday Afternoon | Snow Level | None' | None' | None' | None' | 6500' | 6500' | None' | 7000' |
| Friday Evening | Snow Level | None' | None' | None' | None' | 6500' | 6500' | None' | 7500' |
| Friday Night | Snow Level | None' | None' | None' | None' | 6500' | 7000' | None' | 8500' |
| Saturday Morning | Snow Level | None' | None' | None' | None' | 8000' | 8000' | None' | 8500' |
| Saturday Afternoon | Snow Level | None' | None' | None' | None' | 9000' | 9000' | None' | 9000' |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Evening |
Snow Level None' |
| Thursday Night |
Snow Level None' |
| Friday Morning |
Snow Level None' |
| Friday Afternoon |
Snow Level None' |
| Friday Evening |
Snow Level None' |
| Friday Night |
Snow Level None' |
| Saturday Morning |
Snow Level None' |
| Saturday Afternoon |
Snow Level None' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Evening |
Snow Level None' |
| Thursday Night |
Snow Level None' |
| Friday Morning |
Snow Level None' |
| Friday Afternoon |
Snow Level None' |
| Friday Evening |
Snow Level None' |
| Friday Night |
Snow Level None' |
| Saturday Morning |
Snow Level None' |
| Saturday Afternoon |
Snow Level None' |
| Washington Pass | Elevation |
|---|---|
| Thursday Evening |
Snow Level None' |
| Thursday Night |
Snow Level None' |
| Friday Morning |
Snow Level None' |
| Friday Afternoon |
Snow Level None' |
| Friday Evening |
Snow Level None' |
| Friday Night |
Snow Level None' |
| Saturday Morning |
Snow Level None' |
| Saturday Afternoon |
Snow Level None' |
| Leavenworth | Elevation |
|---|---|
| Thursday Evening |
Snow Level None' |
| Thursday Night |
Snow Level None' |
| Friday Morning |
Snow Level None' |
| Friday Afternoon |
Snow Level None' |
| Friday Evening |
Snow Level None' |
| Friday Night |
Snow Level None' |
| Saturday Morning |
Snow Level None' |
| Saturday Afternoon |
Snow Level None' |
| Stevens Pass | Elevation |
|---|---|
| Thursday Evening |
Snow Level 5000' |
| Thursday Night |
Snow Level 4500' |
| Friday Morning |
Snow Level 5000' |
| Friday Afternoon |
Snow Level 6500' |
| Friday Evening |
Snow Level 6500' |
| Friday Night |
Snow Level 6500' |
| Saturday Morning |
Snow Level 8000' |
| Saturday Afternoon |
Snow Level 9000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Evening |
Snow Level 5000' |
| Thursday Night |
Snow Level 4500' |
| Friday Morning |
Snow Level 5000' |
| Friday Afternoon |
Snow Level 6500' |
| Friday Evening |
Snow Level 6500' |
| Friday Night |
Snow Level 7000' |
| Saturday Morning |
Snow Level 8000' |
| Saturday Afternoon |
Snow Level 9000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Thursday Evening |
Snow Level None' |
| Thursday Night |
Snow Level None' |
| Friday Morning |
Snow Level None' |
| Friday Afternoon |
Snow Level None' |
| Friday Evening |
Snow Level None' |
| Friday Night |
Snow Level None' |
| Saturday Morning |
Snow Level None' |
| Saturday Afternoon |
Snow Level None' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Evening |
Snow Level 6500' |
| Thursday Night |
Snow Level 6000' |
| Friday Morning |
Snow Level 6500' |
| Friday Afternoon |
Snow Level 7000' |
| Friday Evening |
Snow Level 7500' |
| Friday Night |
Snow Level 8500' |
| Saturday Morning |
Snow Level 8500' |
| Saturday Afternoon |
Snow Level 9000' |
* 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
| Thursday Night | Friday | Friday Night | Saturday | |
|---|---|---|---|---|
| 5 pm - 5 am | 5 am - 5 pm | 5 pm - 5 am | 5 am - 5 pm | |
| Hurricane Ridge | LT 0.10 | 0 | 0 | 0 |
| Mt Baker Ski Area | LT 0.25 | 0 | 0 | 0 |
| Mt. Loop - Barlow Pass | LT 0.10 | 0 | 0 | 0 |
| Stevens Pass | LT 0.10 | 0 | 0 | 0 |
| Snoqualmie Pass | LT 0.10 | 0 | 0 | 0 |
| Crystal Mt | LT 0.10 | 0 | 0 | 0 |
| Paradise | LT 0.10 | 0 | 0 | 0 |
| White Pass | LT 0.10 | 0 | 0 | 0 |
| Washington Pass | LT 0.10 | 0 | 0 | 0 |
| Mission Ridge | LT 0.10 | 0 | 0 | 0 |
| Salmon la Sac - Gallagher Head | LT 0.10 | 0 | 0 | 0 |
| Tieton River - Darland Mt. | LT 0.10 | 0 | 0 | 0 |
| Mt Hood Meadows | LT 0.10 | LT 0.10 | 0 | 0 |
| Timberline | LT 0.10 | LT 0.10 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.25 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Mt. Loop - Barlow Pass | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Salmon la Sac - Gallagher Head | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Tieton River - Darland Mt. | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | 0 |
| Saturday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | 0 |
| Saturday | 0 |
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: 2:37 PM PST Thursday, April 11, 2024
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Thursday Evening | --- None - None | --- None - None | --- None - None | --- None - None | SW None - None |
| Thursday Night | --- None - None | --- None - None | --- None - None | --- None - None | SW None - None |
| Friday Morning | --- None - None | --- None - None | --- None - None | --- None - None | S None - None |
| Friday Afternoon | --- None - None | --- None - None | --- None - None | --- None - None | ESE None - None |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Mt. Baker | Elevation |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Mt. Rainier | Elevation |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Mt. Hood | Elevation |
|---|---|
| Thursday Evening | SW None - None |
| Thursday Night | SW None - None |
| Friday Morning | S None - None |
| Friday Afternoon | ESE None - None |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Evening | SW None - None |
| Thursday Night | SW None - None |
| Friday Morning | S None - None |
| Friday Afternoon | ESE 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 | |
|---|---|---|---|---|---|
| Thursday Evening | --- None - None | --- None - None | --- None - None | --- None - None | --- None - None |
| Thursday Night | --- None - None | --- None - None | --- None - None | --- None - None | --- None - None |
| Friday Morning | --- None - None | --- None - None | --- None - None | --- None - None | --- None - None |
| Friday Afternoon | --- None - None | --- None - None | --- None - None | --- None - None | --- None - None |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Washington Pass | Direction - Speed |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- None - None |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Evening | --- None - None |
| Thursday Night | --- None - None |
| Friday Morning | --- None - None |
| Friday Afternoon | --- 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.
Issued: 2:37 PM PST Thursday, April 11, 2024
Extended Weather Synopsis for Saturday night through Monday
We'll see upper level troughing begin to setup over the region on Sunday. While Sunday will still be quite warm, we see falling temperatures/freezing levels in the afternoon. The bigger story will likely be the increasing westerly ridgeline winds associated with a strong onshore push. Look for strong westerly winds to develop later Sunday afternoon through Monday. A cold low will bring showers and along with some new snow above 4000' on Monday, mainly along the west slopes of the Cascades.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Saturday Night | Snow Level | None' - None' | None' - None' | None' - None' | |
| Sunday | Snow Level | None' - None' | None' - None' | None' - None' | |
| Sunday Night | Snow Level | None' - None' | None' - None' | None' - None' | |
| Monday | Snow Level | None' - None' | None' - None' | None' - None' |
| Mt. Baker | Elevation |
|---|---|
| Saturday Night |
Snow Level None' - None' |
| Sunday |
Snow Level None' - None' |
| Sunday Night |
Snow Level None' - None' |
| Monday |
Snow Level None' - None' |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Night |
Snow Level None' - None' |
| Sunday |
Snow Level None' - None' |
| Sunday Night |
Snow Level None' - None' |
| Monday |
Snow Level None' - None' |
| Mt. Hood | Elevation |
|---|---|
| Saturday Night |
Snow Level None' - None' |
| Sunday |
Snow Level None' - None' |
| Sunday Night |
Snow Level None' - None' |
| Monday |
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 11, 2024
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