Mountain Weather Forecast
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I
Weather Synopsis for Sunday & Monday
Sunday will be the final day of an extended warm, dry stretch of weather. The upper-level weather pattern remains broadly similar, with westerly flow to our north and a closed low now moving inland over California. The associated cloud cover extending as far northward as southern Washington should dissipate around Mt Hood early this morning.
The main stories will be the warm temperatures on Sunday, increasing W winds, and a rapid cool-down heading into Monday. Most NWAC stations, including Camp Muir, were above freezing early Sunday morning. High temperatures on Sunday east of the Cascades should be warmer than Saturday. However, a strong surface high well offshore combined with a thermal low east of the Cascades will increase W winds to reasonably low elevations. This will initially begin to cool areas west of the Cascade Crest.
A broad trough eases southward over British Columbia Sunday night and Monday, rapidly cooling and increasing clouds. Most precipitation will hold off until the early morning hours on Monday. Expect periods of mostly very light rain and snow for the west slopes of the Cascades with 3000-4000 ft snow levels. Perhaps an inch or so of snow will accumulate in convergence bands. Meanwhile, moderate winds will buffet the east slopes of the Cascades and mountain gaps as pressure gradients increase to 10 MB across the Cascades by the afternoon.
7am Mountain Weather Forecasts will continue through Sunday, April 14th. Beginning Monday, April 15th, we will issue 230pm Mountain Weather Forecasts every day through Sunday, April 28th.
Weather Forecast
Olympics
| Sunday | Mostly sunny with increasing high clouds. High clouds lower and thicken late in the day. |
| Sunday Night | Mostly cloudy. |
West North
| Sunday | Mostly sunny with increasing high clouds. |
| Sunday Night | Mostly cloudy with lower clouds increasing in the early morning hours. |
West Central
| Sunday | Mostly sunny with increasing high clouds. |
| Sunday Night | Mostly cloudy with lower clouds increasing and a chance of very light rain or snow increasing in the early morning hours. |
West South
| Sunday | Mostly sunny with increasing high clouds. |
| Sunday Night | Mostly cloudy with lower clouds increasing in the early morning hours. |
Stevens Pass
| Sunday | Mostly sunny with increasing high clouds. Increasing light ridgeline and W wind at the Pass. Increasing light ridgeline and W wind at the Pass. |
| Sunday Night | Mostly cloudy, with lower clouds increasing and a slight chance of very light rain or snow increasing in the early morning hours. There is an increasing light to moderate ridgeline and light W wind at the Pass. |
Snoqualmie Pass
| Sunday | Mostly sunny with increasing high clouds. Increasing moderate ridgeline and light to moderate W wind at the Pass. |
| Sunday Night | Mostly cloudy with lower clouds increasing and a slight chance of very light rain or snow increasing in the early morning hours. Increasing moderate ridgeline and light to moderate W wind at the Pass. |
East North
| Sunday | Mostly sunny with increasing high clouds. |
| Sunday Night | Partly cloudy. Moderate ridgeline winds. |
East Central
| Sunday | Mostly sunny with increasing high clouds. |
| Sunday Night | Partly cloudy. Moderate ridgeline winds. |
East South
| Sunday | Mostly sunny with increasing high clouds. |
| Sunday Night | Partly cloudy. Moderate ridgeline winds. |
Mt. Hood
| Sunday | Decreasing clouds early, then becoming mostly sunny with increasing high clouds in the afternoon. |
| Sunday Night | Partly cloudy. Increasing moderate ridgeline winds. |
Issued: 7:10 AM PST Sunday, April 14, 2024
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Sunday Morning | Snow Level | None' | None' | None' | None' | 10000' | 10000' | None' | 10000' |
| Sunday Afternoon | Snow Level | None' | None' | None' | None' | 10000' | 10000' | None' | 10000' |
| Sunday Evening | Snow Level | None' | None' | None' | None' | 8500' | 8000' | None' | 9000' |
| Sunday Night | Snow Level | None' | None' | None' | None' | 6500' | 6000' | None' | 7500' |
| Monday Morning | Snow Level | None' | None' | None' | None' | 3000' | 3000' | None' | 4000' |
| Monday Afternoon | Snow Level | None' | None' | None' | None' | 3500' | 3500' | None' | 3500' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning |
Snow Level None' |
| Sunday Afternoon |
Snow Level None' |
| Sunday Evening |
Snow Level None' |
| Sunday Night |
Snow Level None' |
| Monday Morning |
Snow Level None' |
| Monday Afternoon |
Snow Level None' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning |
Snow Level None' |
| Sunday Afternoon |
Snow Level None' |
| Sunday Evening |
Snow Level None' |
| Sunday Night |
Snow Level None' |
| Monday Morning |
Snow Level None' |
| Monday Afternoon |
Snow Level None' |
| Washington Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level None' |
| Sunday Afternoon |
Snow Level None' |
| Sunday Evening |
Snow Level None' |
| Sunday Night |
Snow Level None' |
| Monday Morning |
Snow Level None' |
| Monday Afternoon |
Snow Level None' |
| Leavenworth | Elevation |
|---|---|
| Sunday Morning |
Snow Level None' |
| Sunday Afternoon |
Snow Level None' |
| Sunday Evening |
Snow Level None' |
| Sunday Night |
Snow Level None' |
| Monday Morning |
Snow Level None' |
| Monday Afternoon |
Snow Level None' |
| Stevens Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 10000' |
| Sunday Afternoon |
Snow Level 10000' |
| Sunday Evening |
Snow Level 8500' |
| Sunday Night |
Snow Level 6500' |
| Monday Morning |
Snow Level 3000' |
| Monday Afternoon |
Snow Level 3500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 10000' |
| Sunday Afternoon |
Snow Level 10000' |
| Sunday Evening |
Snow Level 8000' |
| Sunday Night |
Snow Level 6000' |
| Monday Morning |
Snow Level 3000' |
| Monday Afternoon |
Snow Level 3500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Morning |
Snow Level None' |
| Sunday Afternoon |
Snow Level None' |
| Sunday Evening |
Snow Level None' |
| Sunday Night |
Snow Level None' |
| Monday Morning |
Snow Level None' |
| Monday Afternoon |
Snow Level None' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning |
Snow Level 10000' |
| Sunday Afternoon |
Snow Level 10000' |
| Sunday Evening |
Snow Level 9000' |
| Sunday Night |
Snow Level 7500' |
| Monday Morning |
Snow Level 4000' |
| Monday Afternoon |
Snow Level 3500' |
* 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 | Sunday Night | Monday | |
|---|---|---|---|
| 5 am - 5 pm | 5 pm - 5 am | 5 am - 5 pm | |
| Hurricane Ridge | 0 | 0 | LT 0.10 |
| Mt Baker Ski Area | 0 | 0 | LT 0.10 |
| Mt. Loop - Barlow Pass | 0 | LT 0.10 | LT 0.10 |
| Stevens Pass | 0 | 0 | LT 0.10 |
| Snoqualmie Pass | 0 | 0 | LT 0.10 |
| Crystal Mt | 0 | 0 | LT 0.10 |
| Paradise | 0 | 0 | LT 0.10 |
| White Pass | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 |
| Salmon la Sac - Gallagher Head | 0 | 0 | LT 0.10 |
| Tieton River - Darland Mt. | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | 0 |
| Timberline | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| Mt. Loop - Barlow Pass | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | LT 0.10 |
| Monday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Salmon la Sac - Gallagher Head | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| Tieton River - Darland Mt. | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 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: 7:10 AM PST Sunday, April 14, 2024
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Morning | --- None - None | --- None - None | --- None - None | --- None - None | NNE None - None |
| Sunday Afternoon | --- None - None | --- None - None | --- None - None | --- None - None | NW None - None |
| Sunday Evening | --- None - None | --- None - None | --- None - None | --- None - None | W None - None |
| Sunday Night | --- None - None | --- None - None | --- None - None | --- None - None | W None - None |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning | --- None - None |
| Sunday Afternoon | --- None - None |
| Sunday Evening | --- None - None |
| Sunday Night | --- None - None |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning | --- None - None |
| Sunday Afternoon | --- None - None |
| Sunday Evening | --- None - None |
| Sunday Night | --- None - None |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning | --- None - None |
| Sunday Afternoon | --- None - None |
| Sunday Evening | --- None - None |
| Sunday Night | --- None - None |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Morning | --- None - None |
| Sunday Afternoon | --- None - None |
| Sunday Evening | --- None - None |
| Sunday Night | --- None - None |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning | NNE None - None |
| Sunday Afternoon | NW None - None |
| Sunday Evening | W None - None |
| Sunday Night | W None - None |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Morning | --- None - None |
| Sunday Afternoon | --- None - None |
| Sunday Evening | --- None - None |
| Sunday Night | --- None - None |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | --- None - None |
| Sunday Afternoon | --- None - None |
| Sunday Evening | --- None - None |
| Sunday Night | --- None - None |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | --- None - None |
| Sunday Afternoon | --- None - None |
| Sunday Evening | --- None - None |
| Sunday Night | --- None - None |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | --- None - None |
| Sunday Afternoon | --- None - None |
| Sunday Evening | --- None - None |
| Sunday Night | --- None - None |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | NNE None - None |
| Sunday Afternoon | NW None - None |
| Sunday Evening | W None - None |
| Sunday 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 April 13, 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.