Mountain Weather Forecast
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
Scattered showers along the Olympics and west slopes of the Cascades and light to moderate WNW ridgeline winds for all areas will continue through this evening with both winds and precipitation tapering off overnight. Snow levels will hang around 3500' tonight with a cold upper trough overhead. We'll see our weather fortunes change quickly in a progressive weather pattern as high pressure shifts from offshore to over western WA on Monday. After a cool start, look for freezing levels to rebound quickly into the 6500-8000' range by Monday afternoon with mostly sunny skies. The backside of the upper level trough may bring some breezy N-NE winds to places like the North Cascades during the day on Monday.
The high pressure will also say hello and good-bye quickly as it shifts into EWA Monday night, setting up a short but distinct period of offshore flow. We should see light to moderate ESE ridgeline winds crank up Monday night through Tuesday morning before the flow reverses to weak onshore (W-WSW winds) Tuesday afternoon. A weak Pacific frontal system will likely spread some high clouds over the area Monday night and Tuesday. Still, we'll continue to experience mild freezing levels and temperatures through early next week.
Weather Forecast
Olympics
| Sunday Night | Mostly cloudy in the evening with a chance of light rain or snow showers, then partly cloudy. |
| Monday | Mostly sunny. |
West North
| Sunday Night | Mostly cloudy in the evening with scattered light rain or snow showers, then mostly cloudy. |
| Monday | Partly cloudy in the morning, then mostly sunny. Periods of moderate ridgeline winds possible. |
West Central
| Sunday Night | Mostly cloudy in the evening with scattered light rain or snow showers, then mostly cloudy. Moderate ridgeline winds easing after midnight. |
| Monday | Partly cloudy in the morning, then mostly sunny. |
West South
| Sunday Night | Mostly cloudy in the evening with scattered light rain or snow showers, then partly to mostly cloudy. |
| Monday | Mostly sunny. |
Stevens Pass
| Sunday Night | Mostly cloudy in the evening with scattered light rain or snow showers, then partly to mostly cloudy. Moderate ridgeline and Pass level WNW winds easing after midnight. |
| Monday | Partly cloudy in the morning, then mostly sunny. Light N-NW winds at ridgeline, light W winds at Pass level. |
Snoqualmie Pass
| Sunday Night | Mostly cloudy in the evening with scattered light rain or snow showers, then partly to mostly cloudy. Moderate ridgeline and Pass level WNW winds easing after midnight. |
| Monday | Partly cloudy in the morning, then mostly sunny. Light N-NW winds at ridgeline, light W winds at Pass level. |
East North
| Sunday Night | Mostly cloudy with a chance of evening showers near the Cascade crest, then becoming partly to mostly clear after midnight. Moderate ridgeline winds easing after midnight. |
| Monday | Mostly sunny. Periods of moderate ridgeline winds possible. |
East Central
| Sunday Night | Mostly cloudy with a chance of evening showers near the Cascade crest, then becoming partly to mostly clear after midnight. Moderate ridgeline winds easing after midnight. |
| Monday | Mostly sunny. |
East South
| Sunday Night | Mostly cloudy with a chance of evening showers near the Cascade crest, then becoming partly to mostly clear after midnight. Moderate ridgeline winds easing after midnight. |
| Monday | Mostly sunny. |
Mt. Hood
| Sunday Night | Partly to mostly clear. Moderate ridgeline winds. |
| Monday | Mostly sunny. |
Issued: 2:39 PM PST Sunday, April 21, 2024
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' | 5000' |
| Sunday Night | Snow Level | None' | None' | None' | None' | 3500' | 3500' | None' | 5000' |
| Monday Morning | Snow Level | None' | None' | None' | None' | 4500' | 4500' | None' | 6500' |
| Monday Afternoon | Snow Level | None' | None' | None' | None' | 7000' | 7000' | None' | 8000' |
| Monday Evening | Snow Level | None' | None' | None' | None' | 6500' | 6500' | None' | 9000' |
| Monday Night | Snow Level | None' | None' | None' | None' | 6500' | 6500' | None' | 9500' |
| Tuesday Morning | Snow Level | None' | None' | None' | None' | 7000' | 7000' | None' | 9500' |
| Tuesday Afternoon | Snow Level | None' | None' | None' | None' | 8000' | 8000' | None' | 9000' |
| 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 3500' |
| Monday Morning |
Snow Level 4500' |
| Monday Afternoon |
Snow Level 7000' |
| Monday Evening |
Snow Level 6500' |
| Monday Night |
Snow Level 6500' |
| Tuesday Morning |
Snow Level 7000' |
| Tuesday Afternoon |
Snow Level 8000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Evening |
Snow Level 3500' |
| Sunday Night |
Snow Level 3500' |
| Monday Morning |
Snow Level 4500' |
| Monday Afternoon |
Snow Level 7000' |
| Monday Evening |
Snow Level 6500' |
| Monday Night |
Snow Level 6500' |
| Tuesday Morning |
Snow Level 7000' |
| Tuesday Afternoon |
Snow Level 8000' |
| 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 5000' |
| Sunday Night |
Snow Level 5000' |
| Monday Morning |
Snow Level 6500' |
| Monday Afternoon |
Snow Level 8000' |
| Monday Evening |
Snow Level 9000' |
| Monday Night |
Snow Level 9500' |
| Tuesday Morning |
Snow Level 9500' |
| Tuesday 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
| 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 | 0 | 0 | 0 |
| Mt Baker Ski Area | LT 0.10 | 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 | 0 | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 | 0 |
| Salmon la Sac - Gallagher Head | LT 0.10 | 0 | 0 | 0 |
| Tieton River - Darland Mt. | 0 | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | 0 | 0 |
| Timberline | 0 | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Mt. Loop - Barlow Pass | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Salmon la Sac - Gallagher Head | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Tieton River - Darland Mt. | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 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: 2:39 PM PST Sunday, April 21, 2024
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 | WNW None - None |
| Sunday Night | --- None - None | --- None - None | --- None - None | --- None - None | NW None - None |
| Monday Morning | --- None - None | --- None - None | --- None - None | --- None - None | WNW None - None |
| Monday Afternoon | --- None - None | --- None - None | --- None - None | --- None - None | WNW 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 | WNW None - None |
| Sunday Night | NW None - None |
| Monday Morning | WNW None - None |
| Monday Afternoon | WNW 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 | WNW None - None |
| Sunday Night | NW None - None |
| Monday Morning | WNW None - None |
| Monday Afternoon | WNW 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: 2:39 PM PST Sunday, April 21, 2024
Extended Weather Synopsis for Tuesday night through Thursday
We'll start to ease into an unsettled weather pattern on Wednesday with increasing onshore flow, marine clouds on the west side of the Cascades, and light showers for the Olympics and northwest Cascades. Temperatures will start to dip on Wednesday, especially for areas along the west slopes of the Cascades and Olympics, while areas south and east hang onto milder temperatures for one more day. A more organized weather system will approach the coast on Thursday and should spread light to occasionally moderate precipitation over the area. This will mark the start of unsettled weather that should last at least several days.
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' | |
| Thursday | 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 April 20, 2024
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