A low off the Oregon Coast continues to track NNE toward Vancouver Island Tuesday night. Rain and snow on Tuesday focused on the northern portions of the forecast region, but precipitation should fill in across the region during the evening hours and increase overnight. Most precipitation should be light, but SSW winds will focus moderate precipitation on the volcanoes along with more wind. Expect spillover onto the E slopes of the Cascades with light low-level E flow. Snow levels range from 3000 ft in the north, to 3500 ft around Snoqualmie Pass, and up to 5000 ft for Mt Hood.
The slow-moving front reaches the coastline Wednesday morning and pushes into the Cascades during the mid-day hours, allowing the SSW flow pattern to continue bringing in gradually warmer air. Snow levels rise to 3500-4000 ft in the central Washington Cascades as light to moderate rain and snow continue.
A deep upper trough begins to ease into the region Wednesday night, bringing rapidly cooling temperatures, decreased SSW winds, and a cold, showery, snowy regime ensues. On Thursday, expect a combination of locally intense snow showers with graupel, convergence precipitation in the central Washington Cascades, with increased convection in the afternoon with 1000-2000 ft snow levels and lower snow ratios.
Weather Forecast
Olympics
West North
West Central
West South
Stevens Pass
Snoqualmie Pass
East North
East Central
East South
Mt. Hood
Use dropdown to select your zone
Tuesday
Night
Increasing periods of light rain and snow (moderate southern and eastern Olympics). Increasing light ridgeline winds become moderate.
Wednesday
Periods of light to moderate rain and snow.
Tuesday
Night
Increasing moderate to heavy rain and snow. Moderate ridgeline winds become strong at times overnight.
Wednesday
Moderate to occasionally heavy rain and snow. Decreasing moderate ridgeline winds.
Tuesday
Night
Light to moderate rain and snow.
Wednesday
Light to occasionally moderate rain and snow.
Tuesday
Night
Moderate rain and snow. Light to moderate ridgeline winds.
Wednesday
Light to moderate rain and snow. Decreasing light to moderate ridgeline winds.
Tuesday
Night
Periods of light rain and snow. Light ridgeline and E wind at the Pass.
Wednesday
Periods of light rain and snow. Light ridgeline and E wind at the Pass.
Tuesday
Night
Periods of light to occasionally moderate rain and snow. Light ridgeline and E wind at the Pass.
Wednesday
Periods of light rain and snow. Light ridgeline and E wind at the Pass.
Tuesday
Night
Periods of light rain and snow.
Wednesday
Periods of light rain and snow.
Tuesday
Night
Periods of light rain and snow.
Wednesday
Periods of light rain and snow.
Tuesday
Night
Periods of light rain and snow.
Wednesday
Periods of light rain and snow increasing in the afternoon.
Tuesday
Night
Periods of light to occasionally moderate rain and snow. Moderate ridgeline winds.
Wednesday
Light to moderate rain and snow. Moderate ridgeline winds.
Issued: 2:32 PM PDT Tuesday, March 11, 2025
Precipitation (in)
Tuesday Night
Wednesday
Wednesday Night
Thursday
5 pm - 5 am
5 am - 5 pm
5 pm - 5 am
5 am - 5 pm
Hurricane Ridge
LT 0.25
0.25 - 0.50
LT 0.25
LT 0.10
Mt Baker Ski Area
0.75
0.50 - 0.75
0.25 - 0.50
0.25
Mt. Loop - Barlow Pass
0.25 - 0.50
0.25
0.25 - 0.50
0.25 - 0.50
Stevens Pass
0.25
LT 0.25
0.25 - 0.50
LT 0.25
Snoqualmie Pass
0.25 - 0.50
LT 0.25
0.50
0.25
Crystal Mt
0.50
0.25
0.25
LT 0.25
Paradise
0.75
0.50
0.25 - 0.50
0.25
White Pass
0.25
LT 0.25
0.25
LT 0.25
Washington Pass
LT 0.25
LT 0.25
LT 0.25
LT 0.10
Mission Ridge
LT 0.25
LT 0.25
LT 0.25
LT 0.10
Salmon la Sac - Gallagher Head
0.25 - 0.50
0.25
0.25
LT 0.25
Tieton River - Darland Mt.
LT 0.25
LT 0.25
0.25
LT 0.25
Mt Hood Meadows
LT 0.25
0.25
0.25
0.25
Timberline
LT 0.25
0.25
0.25
0.25
Hurricane Ridge
Precipitation (in)
Tuesday Night
LT 0.25
Wednesday
0.25 - 0.50
Wednesday Night
LT 0.25
Thursday
LT 0.10
Mt Baker Ski Area
Precipitation (in)
Tuesday Night
0.75
Wednesday
0.50 - 0.75
Wednesday Night
0.25 - 0.50
Thursday
0.25
Mt. Loop - Barlow Pass
Precipitation (in)
Tuesday Night
0.25 - 0.50
Wednesday
0.25
Wednesday Night
0.25 - 0.50
Thursday
0.25 - 0.50
Stevens Pass
Precipitation (in)
Tuesday Night
0.25
Wednesday
LT 0.25
Wednesday Night
0.25 - 0.50
Thursday
LT 0.25
Snoqualmie Pass
Precipitation (in)
Tuesday Night
0.25 - 0.50
Wednesday
LT 0.25
Wednesday Night
0.50
Thursday
0.25
Crystal Mt
Precipitation (in)
Tuesday Night
0.50
Wednesday
0.25
Wednesday Night
0.25
Thursday
LT 0.25
Paradise
Precipitation (in)
Tuesday Night
0.75
Wednesday
0.50
Wednesday Night
0.25 - 0.50
Thursday
0.25
White Pass
Precipitation (in)
Tuesday Night
0.25
Wednesday
LT 0.25
Wednesday Night
0.25
Thursday
LT 0.25
Washington Pass
Precipitation (in)
Tuesday Night
LT 0.25
Wednesday
LT 0.25
Wednesday Night
LT 0.25
Thursday
LT 0.10
Mission Ridge
Precipitation (in)
Tuesday Night
LT 0.25
Wednesday
LT 0.25
Wednesday Night
LT 0.25
Thursday
LT 0.10
Salmon la Sac - Gallagher Head
Precipitation (in)
Tuesday Night
0.25 - 0.50
Wednesday
0.25
Wednesday Night
0.25
Thursday
LT 0.25
Tieton River - Darland Mt.
Precipitation (in)
Tuesday Night
LT 0.25
Wednesday
LT 0.25
Wednesday Night
0.25
Thursday
LT 0.25
Mt Hood Meadows
Precipitation (in)
Tuesday Night
LT 0.25
Wednesday
0.25
Wednesday Night
0.25
Thursday
0.25
Timberline
Precipitation (in)
Tuesday Night
LT 0.25
Wednesday
0.25
Wednesday Night
0.25
Thursday
0.25
Issued: 2:32 PM PDT Tuesday, March 11, 2025
Snow Level (ft)
Tuesday
Evening
Tuesday
Night*
Wednesday
Morning*
Wednesday
Afternoon*
Wednesday
Evening
Wednesday
Night
Thursday
Morning
Thursday
Afternoon
Olympics
2500'
2500'
3000'
3000'
2500'
1500'
1000'
1500'
West North
3000'
3000'
3000'
3500'
3000'
2000'
1500'
1500'
West Central
3500'
3500'
3500'
4000'
3500'
2500'
1500'
1500'
West South
3500'
3500'
4000'
4000'
3500'
2500'
1500'
1500'
Stevens Pass
3500'
3500'
3500'
4000'
3500'
2500'
1500'
1500'
Snoqualmie Pass
3500'
3500'
3500'
4000'
3500'
2500'
1500'
1500'
East North
3500'
3000'
3500'
4000'
3500'
2500'
1500'
1500'
East Central
3500'
3500'
4000'
4000'
3500'
2500'
1500'
1500'
East South
4000'
4000'
4000'
4000'
3500'
2500'
1500'
2000'
Mt. Hood
5000'
4500'
4500'
4500'
3500'
2500'
2000'
2000'
Olympics
Elevation
Tuesday
Evening
2500'
Tuesday
Night*
2500'
Wednesday
Morning*
3000'
Wednesday
Afternoon*
3000'
Wednesday
Evening
2500'
Wednesday
Night
1500'
Thursday
Morning
1000'
Thursday
Afternoon
1500'
West North
Elevation
Tuesday
Evening
3000'
Tuesday
Night*
3000'
Wednesday
Morning*
3000'
Wednesday
Afternoon*
3500'
Wednesday
Evening
3000'
Wednesday
Night
2000'
Thursday
Morning
1500'
Thursday
Afternoon
1500'
West Central
Elevation
Tuesday
Evening
3500'
Tuesday
Night*
3500'
Wednesday
Morning*
3500'
Wednesday
Afternoon*
4000'
Wednesday
Evening
3500'
Wednesday
Night
2500'
Thursday
Morning
1500'
Thursday
Afternoon
1500'
West South
Elevation
Tuesday
Evening
3500'
Tuesday
Night*
3500'
Wednesday
Morning*
4000'
Wednesday
Afternoon*
4000'
Wednesday
Evening
3500'
Wednesday
Night
2500'
Thursday
Morning
1500'
Thursday
Afternoon
1500'
Stevens Pass
Elevation
Tuesday
Evening
3500'
Tuesday
Night*
3500'
Wednesday
Morning*
3500'
Wednesday
Afternoon*
4000'
Wednesday
Evening
3500'
Wednesday
Night
2500'
Thursday
Morning
1500'
Thursday
Afternoon
1500'
Snoqualmie Pass
Elevation
Tuesday
Evening
3500'
Tuesday
Night*
3500'
Wednesday
Morning*
3500'
Wednesday
Afternoon*
4000'
Wednesday
Evening
3500'
Wednesday
Night
2500'
Thursday
Morning
1500'
Thursday
Afternoon
1500'
East North
Elevation
Tuesday
Evening
3500'
Tuesday
Night*
3000'
Wednesday
Morning*
3500'
Wednesday
Afternoon*
4000'
Wednesday
Evening
3500'
Wednesday
Night
2500'
Thursday
Morning
1500'
Thursday
Afternoon
1500'
East Central
Elevation
Tuesday
Evening
3500'
Tuesday
Night*
3500'
Wednesday
Morning*
4000'
Wednesday
Afternoon*
4000'
Wednesday
Evening
3500'
Wednesday
Night
2500'
Thursday
Morning
1500'
Thursday
Afternoon
1500'
East South
Elevation
Tuesday
Evening
4000'
Tuesday
Night*
4000'
Wednesday
Morning*
4000'
Wednesday
Afternoon*
4000'
Wednesday
Evening
3500'
Wednesday
Night
2500'
Thursday
Morning
1500'
Thursday
Afternoon
2000'
Mt. Hood
Elevation
Tuesday
Evening
5000'
Tuesday
Night*
4500'
Wednesday
Morning*
4500'
Wednesday
Afternoon*
4500'
Wednesday
Evening
3500'
Wednesday
Night
2500'
Thursday
Morning
2000'
Thursday
Afternoon
2000'
Issued: 2:32 PM PDT Tuesday, March 11, 2025
5000' Temperatures (°F)
Tuesday
Night
Wednesday
Max / Min
Max / Min
Olympics
28 / 21
30 / 27
West North
27 / 25
31 / 26
West Central
29 / 26
33 / 26
West South
29 / 27
34 / 27
Stevens Pass
29 / 25
34 / 25
Snoqualmie Pass
29 / 26
33 / 26
East North
28 / 23
33 / 23
East Central
29 / 26
33 / 25
East South
31 / 26
35 / 26
Mt. Hood
36 / 29
35 / 29
Olympics
5000' Temperature Forecast (Max / Min)
Tuesday
Night
28 / 21
Wednesday
30 / 27
West North
5000' Temperature Forecast (Max / Min)
Tuesday
Night
27 / 25
Wednesday
31 / 26
West Central
5000' Temperature Forecast (Max / Min)
Tuesday
Night
29 / 26
Wednesday
33 / 26
West South
5000' Temperature Forecast (Max / Min)
Tuesday
Night
29 / 27
Wednesday
34 / 27
Stevens Pass
5000' Temperature Forecast (Max / Min)
Tuesday
Night
29 / 25
Wednesday
34 / 25
Snoqualmie Pass
5000' Temperature Forecast (Max / Min)
Tuesday
Night
29 / 26
Wednesday
33 / 26
East North
5000' Temperature Forecast (Max / Min)
Tuesday
Night
28 / 23
Wednesday
33 / 23
East Central
5000' Temperature Forecast (Max / Min)
Tuesday
Night
29 / 26
Wednesday
33 / 25
East South
5000' Temperature Forecast (Max / Min)
Tuesday
Night
31 / 26
Wednesday
35 / 26
Mt. Hood
5000' Temperature Forecast (Max / Min)
Tuesday
Night
36 / 29
Wednesday
35 / 29
Issued: 2:32 PM PDT Tuesday, March 11, 2025
Ridgeline Winds (mph)
Tuesday
Evening
Tuesday
Night
Wednesday
Morning
Wednesday
Afternoon
Olympics
S 5-15
SSW 15-25
SSW 10-20
SSW 5-15
West North
S 15-25
S 25-35
S 20-30
S 15-25
West Central
SE 5-15
S 10-20
S 10-20
S 5-15
West South
SSW 10-20
SSW 10-20
SSW 10-20
SSW 5-15
Stevens Pass
SE 5-15
SSE 5-15
SSE 5-15
SSE 5-15
Snoqualmie Pass
SE 5-15
SE 5-15
SE 5-15
SE 10-20
East North
SE 5-15
SSE 5-15
S 5-15
SE 5-15
East Central
S 5-15
SSW 10-20
S 5-15
S 5-15
East South
SSW 5-15
SSW 5-15
S 5-15
S 5-15
Mt. Hood
SW 15-25
SSW 15-25
SSW 15-25
SW 10-20
Olympics
Ridgeline Winds (mph)
Tuesday
Evening
S
5-15
Tuesday
Night
SSW
15-25
Wednesday
Morning
SSW
10-20
Wednesday
Afternoon
SSW
5-15
West North
Ridgeline Winds (mph)
Tuesday
Evening
S
15-25
Tuesday
Night
S
25-35
Wednesday
Morning
S
20-30
Wednesday
Afternoon
S
15-25
West Central
Ridgeline Winds (mph)
Tuesday
Evening
SE
5-15
Tuesday
Night
S
10-20
Wednesday
Morning
S
10-20
Wednesday
Afternoon
S
5-15
West South
Ridgeline Winds (mph)
Tuesday
Evening
SSW
10-20
Tuesday
Night
SSW
10-20
Wednesday
Morning
SSW
10-20
Wednesday
Afternoon
SSW
5-15
Stevens Pass
Ridgeline Winds (mph)
Tuesday
Evening
SE
5-15
Tuesday
Night
SSE
5-15
Wednesday
Morning
SSE
5-15
Wednesday
Afternoon
SSE
5-15
Snoqualmie Pass
Ridgeline Winds (mph)
Tuesday
Evening
SE
5-15
Tuesday
Night
SE
5-15
Wednesday
Morning
SE
5-15
Wednesday
Afternoon
SE
10-20
East North
Ridgeline Winds (mph)
Tuesday
Evening
SE
5-15
Tuesday
Night
SSE
5-15
Wednesday
Morning
S
5-15
Wednesday
Afternoon
SE
5-15
East Central
Ridgeline Winds (mph)
Tuesday
Evening
S
5-15
Tuesday
Night
SSW
10-20
Wednesday
Morning
S
5-15
Wednesday
Afternoon
S
5-15
East South
Ridgeline Winds (mph)
Tuesday
Evening
SSW
5-15
Tuesday
Night
SSW
5-15
Wednesday
Morning
S
5-15
Wednesday
Afternoon
S
5-15
Mt. Hood
Ridgeline Winds (mph)
Tuesday
Evening
SW
15-25
Tuesday
Night
SSW
15-25
Wednesday
Morning
SSW
15-25
Wednesday
Afternoon
SW
10-20
Issued: 2:32 PM PDT Tuesday, March 11, 2025
Extended Weather Synopsis
A cold, snowy pattern continues. On Thursday night, the cold trough remains over the area, and mostly light snow showers focus on the Cascades' west slopes. As an incoming shortwave trough approaches the coastline Friday morning, expect a break in the action before snowfall returns the southern half of the forecast region in the afternoon. Light snow showers spread throughout the region with the trough overhead Friday night. A moist westerly flow focuses moderate to locally heavy snowfall on the west slopes of the Cascades on Saturday.
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.
The 5000’ temperature forecast does not imply a trend over the 12 hr period and only represents the max and min temperatures within a 12 hr period in the zone. The 6-hr snow level forecast, the forecast discussion, and weather forecast sections may add detail regarding temperature trends.
The snow level forecast represents the general snow level over a 6 hr time period. Freezing levels are forecast when precipitation is not expected.
*Easterly or offshore flow is highlighted with an asterisk when we expect relatively cool east winds in the major Cascade Passes. Easterly flow will often lead to temperature inversions and is a key variable for forecasting precipitation type in the Cascade Passes. Strong easterly flow events can affect terrain on a more regional scale.
Ridgeline winds are the average wind speed and direction over a 6 hr time period.
The wind forecast represents an elevation range instead of a single elevation slice. The elevation range overlaps with the near and above treeline elevation bands in the avalanche forecast and differs per zone.
Wind direction indicates the direction the wind originates or comes from on the 16-point compass rose.
Water Equivalent (WE) is the liquid water equivalent of all precipitation types; rain, snow, ice pellets, etc., forecast to the hundredth of an inch at specific locations. To use WE as a proxy for snowfall amounts, start with a snow to water ratio of 10:1 (10 inches of snow = 1 inch WE). Temperatures at or near freezing will generally have a lower ratio (heavy wet snow) and very cold temperatures can have a much higher ratio (dry fluffy snow).