Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather
Weather Synopsis
A tongue of high pressure sits over the Pacific Northwest on Saturday afternoon, bringing very warm conditions across the region. A cutoff low continues to spin off the California coastline. A disturbance rotating around the low pushed some moisture into central Oregon, with some weak bands of showers potentially reaching Mt Hood through the evening hours. Washington State sits between the counterclockwise rotation of flow around the cutoff low and light W flow for northernmost Washington and into British Columbia. At ridgelines, the winds remain light and westerly in northern areas but have a northerly component toward the cutoff low further south. At times winds are calm.
Freezing levels rise to around 8500-10500 ft, even as radiational cooling brings cooler temperatures overnight. A few isolated deep, higher-elevation valleys may see surface temperatures dip below freezing overnight, but most areas remain above freezing.
Low-level westerly flow increases on Sunday as a broad trough begins to approach. High clouds increase across the region, with a few low clouds possibly banking up against the west slopes of the Olympics and the central-north Cascades. West of the Cascades should cool 3-8F at middle elevations even though freezing levels only take a slight dip. East of the Cascade Crest, moderate winds through the gaps and exposed ridgelines will be more noticeable than any cooling.
The trough brings an abrupt pattern shift and becomes more impactful on Sunday night. Moderate winds with strong gusts continue for the east slopes of the Cascades as clouds lower and thicken across the west slopes. Freezing levels drop to slightly 6000-8000 ft overnight.
By Monday, the west slopes of the Cascades can expect some very light rain and snow (perhaps some weak convergence as well) with snow levels in the 3000-4000 ft range. The east slopes remain mostly dry and windy.
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
| Saturday Night | Mild. Mostly clear with very thin high clouds at times. |
|---|---|
| Sunday | Warm. Filtered sunshine with increasing high clouds. Some low clouds are possible late in the day. |
| Saturday Night | Mild. Mostly clear with very thin high clouds at times. |
|---|---|
| Sunday | Warm. Filtered sunshine with increasing high clouds. |
| Saturday Night | Mild. Mostly clear with very thin high clouds at times. |
|---|---|
| Sunday | Warm. Filtered sunshine with increasing high clouds. Some low clouds are possible late in the day. |
| Saturday Night | Mild. Gradually clearing high clouds. |
|---|---|
| Sunday | Very warm. Mostly sunny to start, then filtered sunshine with increasing high clouds. |
| Saturday Night | Mild. Mostly clear with very thin high clouds at times. Increasing light ridgeline and W wind at the Pass. |
|---|---|
| Sunday | Very warm. Filtered sunshine with increasing high clouds. Increasing light ridgeline and W wind at the Pass. |
| Saturday Night | Mild. Mostly clear with very thin high clouds at times. Increasing light ridgeline and W wind at the Pass. |
|---|---|
| Sunday | Very warm. Filtered sunshine with increasing high clouds. Increasing light to moderate ridgeline and W wind at the Pass. |
| Saturday Night | Mild with a very shallow inversion. Mostly clear with very thin high clouds at times. |
|---|---|
| Sunday | Very warm. Filtered sunshine with increasing high clouds. |
| Saturday Night | Mild. Mostly clear with very thin high clouds at times. |
|---|---|
| Sunday | Very warm. Filtered sunshine with increasing high clouds. |
| Saturday Night | Mild. Mostly clear with very thin high clouds at times. |
|---|---|
| Sunday | Very warm. Filtered sunshine with increasing high clouds. |
| Saturday Night | Mild. Mostly cloudy with a slight chance of precipitation in the evening. |
|---|---|
| Sunday | Very warm. Filtered sunshine with increasing high clouds. Moderate ridgeline winds develop by the end of the day. |
Issued: 2:41 PM PDT Saturday, April 13, 2024
Precipitation (in)
| Saturday Night | Sunday | Sunday Night | Monday | |
|---|---|---|---|---|
| 5 pm - 5 am | 5 am - 5 pm | 5 pm - 5 am | 5 am - 5 pm | |
| Hurricane Ridge | 0 | 0 | 0 | LT 0.10 |
| Mt Baker Ski Area | 0 | 0 | 0 | LT 0.10 |
| Mt. Loop - Barlow Pass | 0 | 0 | 0 | LT 0.10 |
| Stevens Pass | 0 | 0 | 0 | LT 0.10 |
| Snoqualmie Pass | 0 | 0 | 0 | LT 0.10 |
| Crystal Mt | 0 | 0 | 0 | 0 |
| Paradise | 0 | 0 | 0 | LT 0.10 |
| White Pass | 0 | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 | 0 |
| Salmon la Sac - Gallagher Head | 0 | 0 | 0 | 0 |
| Tieton River - Darland Mt. | 0 | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | 0 | 0 |
| Timberline | 0 | 0 | 0 | LT 0.10 |
| Hurricane Ridge | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| Mt Baker Ski Area | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| Mt. Loop - Barlow Pass | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| Stevens Pass | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| Snoqualmie Pass | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| Crystal Mt | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Paradise | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
| White Pass | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Washington Pass | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Mission Ridge | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Salmon la Sac - Gallagher Head | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Tieton River - Darland Mt. | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Mt Hood Meadows | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Timberline | Precipitation (in) |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | LT 0.10 |
Issued: 2:41 PM PDT Saturday, April 13, 2024
Snow Level (ft)
| Saturday Evening | Saturday Night | Sunday Morning | Sunday Afternoon | Sunday Evening | Sunday Night | Monday Morning | Monday Afternoon | |
|---|---|---|---|---|---|---|---|---|
| Olympics | 9000' | 9500' | 9500' | 9000' | 8000' | 6000' | 3500' | 3000' |
| West North | 9000' | 9000' | 8500' | 8500' | 7500' | 5500' | 3000' | 3500' |
| West Central | 9500' | 9500' | 10000' | 9500' | 8000' | 5500' | 3000' | 3500' |
| West South | 10000' | 10500' | 10500' | 10000' | 8500' | 6000' | 4000' | 4000' |
| Stevens Pass | 10000' | 10500' | 10500' | 10000' | 8500' | 6000' | 3500' | 3500' |
| Snoqualmie Pass | 10000' | 10500' | 10500' | 10000' | 8000' | 5500' | 3000' | 3500' |
| East North | 9500' | 9000' | 9000' | 9500' | 9000' | 6500' | 4500' | 5500' |
| East Central | 10000' | 10500' | 10500' | 10500' | 10000' | 8000' | 5000' | 5500' |
| East South | 10500' | 10500' | 10500' | 10500' | 10500' | 8000' | 5000' | 5500' |
| Mt. Hood | 9500' | 10000' | 10000' | 10000' | 9500' | 7500' | 3500' | 4000' |
| Olympics | Elevation |
|---|---|
| Saturday Evening | 9000' |
| Saturday Night | 9500' |
| Sunday Morning | 9500' |
| Sunday Afternoon | 9000' |
| Sunday Evening | 8000' |
| Sunday Night | 6000' |
| Monday Morning | 3500' |
| Monday Afternoon | 3000' |
| West North | Elevation |
|---|---|
| Saturday Evening | 9000' |
| Saturday Night | 9000' |
| Sunday Morning | 8500' |
| Sunday Afternoon | 8500' |
| Sunday Evening | 7500' |
| Sunday Night | 5500' |
| Monday Morning | 3000' |
| Monday Afternoon | 3500' |
| West Central | Elevation |
|---|---|
| Saturday Evening | 9500' |
| Saturday Night | 9500' |
| Sunday Morning | 10000' |
| Sunday Afternoon | 9500' |
| Sunday Evening | 8000' |
| Sunday Night | 5500' |
| Monday Morning | 3000' |
| Monday Afternoon | 3500' |
| West South | Elevation |
|---|---|
| Saturday Evening | 10000' |
| Saturday Night | 10500' |
| Sunday Morning | 10500' |
| Sunday Afternoon | 10000' |
| Sunday Evening | 8500' |
| Sunday Night | 6000' |
| Monday Morning | 4000' |
| Monday Afternoon | 4000' |
| Stevens Pass | Elevation |
|---|---|
| Saturday Evening | 10000' |
| Saturday Night | 10500' |
| Sunday Morning | 10500' |
| Sunday Afternoon | 10000' |
| Sunday Evening | 8500' |
| Sunday Night | 6000' |
| Monday Morning | 3500' |
| Monday Afternoon | 3500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening | 10000' |
| Saturday Night | 10500' |
| Sunday Morning | 10500' |
| Sunday Afternoon | 10000' |
| Sunday Evening | 8000' |
| Sunday Night | 5500' |
| Monday Morning | 3000' |
| Monday Afternoon | 3500' |
| East North | Elevation |
|---|---|
| Saturday Evening | 9500' |
| Saturday Night | 9000' |
| Sunday Morning | 9000' |
| Sunday Afternoon | 9500' |
| Sunday Evening | 9000' |
| Sunday Night | 6500' |
| Monday Morning | 4500' |
| Monday Afternoon | 5500' |
| East Central | Elevation |
|---|---|
| Saturday Evening | 10000' |
| Saturday Night | 10500' |
| Sunday Morning | 10500' |
| Sunday Afternoon | 10500' |
| Sunday Evening | 10000' |
| Sunday Night | 8000' |
| Monday Morning | 5000' |
| Monday Afternoon | 5500' |
| East South | Elevation |
|---|---|
| Saturday Evening | 10500' |
| Saturday Night | 10500' |
| Sunday Morning | 10500' |
| Sunday Afternoon | 10500' |
| Sunday Evening | 10500' |
| Sunday Night | 8000' |
| Monday Morning | 5000' |
| Monday Afternoon | 5500' |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening | 9500' |
| Saturday Night | 10000' |
| Sunday Morning | 10000' |
| Sunday Afternoon | 10000' |
| Sunday Evening | 9500' |
| Sunday Night | 7500' |
| Monday Morning | 3500' |
| Monday Afternoon | 4000' |
Issued: 2:41 PM PDT Saturday, April 13, 2024
5000' Temperatures (°F)
| Saturday Night | Sunday | ||
|---|---|---|---|
| Max / Min | Max / Min | ||
| Olympics | 45 / 34 | 46 / 35 | |
| West North | 45 / 33 | 44 / 33 | |
| West Central | 45 / 35 | 44 / 35 | |
| West South | 51 / 37 | 51 / 38 | |
| Stevens Pass | 48 / 36 | 48 / 36 | |
| Snoqualmie Pass | 44 / 37 | 44 / 37 | |
| East North | 48 / 36 | 50 / 36 | |
| East Central | 50 / 40 | 51 / 40 | |
| East South | 52 / 41 | 55 / 41 | |
| Mt. Hood | 49 / 40 | 54 / 43 |
| Olympics | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Saturday Night | 45 / 34 |
| Sunday | 46 / 35 |
| West North | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Saturday Night | 45 / 33 |
| Sunday | 44 / 33 |
| West Central | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Saturday Night | 45 / 35 |
| Sunday | 44 / 35 |
| West South | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Saturday Night | 51 / 37 |
| Sunday | 51 / 38 |
| Stevens Pass | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Saturday Night | 48 / 36 |
| Sunday | 48 / 36 |
| Snoqualmie Pass | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Saturday Night | 44 / 37 |
| Sunday | 44 / 37 |
| East North | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Saturday Night | 48 / 36 |
| Sunday | 50 / 36 |
| East Central | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Saturday Night | 50 / 40 |
| Sunday | 51 / 40 |
| East South | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Saturday Night | 52 / 41 |
| Sunday | 55 / 41 |
| Mt. Hood | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Saturday Night | 49 / 40 |
| Sunday | 54 / 43 |
Issued: 2:41 PM PDT Saturday, April 13, 2024
Ridgeline Winds (mph)
| Saturday Evening | Saturday Night | Sunday Morning | Sunday Afternoon | |
|---|---|---|---|---|
| Olympics | WSW 0-10 | WSW 0-10 | WNW 0-10 | W 0-10 |
| West North | WSW 0-10 | W 0-10 | NW 0-10 | W 0-10 |
| West Central | W 0-10 | NW 5-15 | NW 5-15 | WNW 5-15 |
| West South | NW 0-10 | NW 0-10 | NNW 0-10 | NW 5-15 |
| Stevens Pass | W 0-10 | WNW 5-15 | WNW 5-15 | WNW 5-15 |
| Snoqualmie Pass | NW 5-15 | NW 5-15 | NNW 5-15 | WNW 10-20 |
| East North | WSW 5-15 | W 5-15 | WNW 5-15 | WNW 10-20 |
| East Central | NW 5-15 | WNW 5-15 | WNW 5-15 | WNW 10-20 |
| East South | N 5-15 | NW 5-15 | NNW 0-10 | WNW 5-15 |
| Mt. Hood | NNW 5-15 | NNE 5-15 | N 5-15 | WNW 5-15 |
| Olympics | Ridgeline Winds (mph) |
|---|---|
| Saturday Evening | WSW 0-10 |
| Saturday Night | WSW 0-10 |
| Sunday Morning | WNW 0-10 |
| Sunday Afternoon | W 0-10 |
| West North | Ridgeline Winds (mph) |
|---|---|
| Saturday Evening | WSW 0-10 |
| Saturday Night | W 0-10 |
| Sunday Morning | NW 0-10 |
| Sunday Afternoon | W 0-10 |
| West Central | Ridgeline Winds (mph) |
|---|---|
| Saturday Evening | W 0-10 |
| Saturday Night | NW 5-15 |
| Sunday Morning | NW 5-15 |
| Sunday Afternoon | WNW 5-15 |
| West South | Ridgeline Winds (mph) |
|---|---|
| Saturday Evening | NW 0-10 |
| Saturday Night | NW 0-10 |
| Sunday Morning | NNW 0-10 |
| Sunday Afternoon | NW 5-15 |
| Stevens Pass | Ridgeline Winds (mph) |
|---|---|
| Saturday Evening | W 0-10 |
| Saturday Night | WNW 5-15 |
| Sunday Morning | WNW 5-15 |
| Sunday Afternoon | WNW 5-15 |
| Snoqualmie Pass | Ridgeline Winds (mph) |
|---|---|
| Saturday Evening | NW 5-15 |
| Saturday Night | NW 5-15 |
| Sunday Morning | NNW 5-15 |
| Sunday Afternoon | WNW 10-20 |
| East North | Ridgeline Winds (mph) |
|---|---|
| Saturday Evening | WSW 5-15 |
| Saturday Night | W 5-15 |
| Sunday Morning | WNW 5-15 |
| Sunday Afternoon | WNW 10-20 |
| East Central | Ridgeline Winds (mph) |
|---|---|
| Saturday Evening | NW 5-15 |
| Saturday Night | WNW 5-15 |
| Sunday Morning | WNW 5-15 |
| Sunday Afternoon | WNW 10-20 |
| East South | Ridgeline Winds (mph) |
|---|---|
| Saturday Evening | N 5-15 |
| Saturday Night | NW 5-15 |
| Sunday Morning | NNW 0-10 |
| Sunday Afternoon | WNW 5-15 |
| Mt. Hood | Ridgeline Winds (mph) |
|---|---|
| Saturday Evening | NNW 5-15 |
| Saturday Night | NNE 5-15 |
| Sunday Morning | N 5-15 |
| Sunday Afternoon | WNW 5-15 |
Issued: 2:41 PM PDT Saturday, April 13, 2024
Extended Weather Synopsis
The Pacific Northwest remains near the southern boundary of a broad trough Monday night and Tuesday, continue the same pattern with a few very light rain/snow showers and temperatures below seasonal norms. The trough shifts eastward Tuesday night and Wednesday as a ridge of high pressure builds into the region for mostly dry and sunnier weather.
Extended Snow Level (ft)
| Monday Night | Tuesday | Tuesday Night | Wednesday | |
|---|---|---|---|---|
| West North | 2500' | 2500' | 3000' | 4000' |
| Snoqualmie Pass | 3000' | 3000' | 3000' | 4000' |
| Mt. Hood | 3000' | 3000' | 3500' | 4000' |
| West North | Elevation |
|---|---|
| Monday Night | 2500' |
| Tuesday | 2500' |
| Tuesday Night | 3000' |
| Wednesday | 4000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Night | 3000' |
| Tuesday | 3000' |
| Tuesday Night | 3000' |
| Wednesday | 4000' |
| Mt. Hood | Elevation |
|---|---|
| Monday Night | 3000' |
| Tuesday | 3000' |
| Tuesday Night | 3500' |
| Wednesday | 4000' |
Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather
Previous forecast from Apr 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.