Several waves of moisture will rotate into the region Sunday night and Monday as an offshore low heads toward the Oregon Coast. The first wave of moisture lifting north is bringing some light rain and snow to the Mt Hood areas Sunday afternoon. This band will target the southern Washington Cascades in the evening and the northern Cascades overnight. Moderate to locally strong ESE winds ahead of this wave will ease in its wake as wind switch SSW. Shower activity may be slow to fill back in behind this wave, but some light shower activity should continue Sunday night and Monday morning as snow levels lower from 4500 ft Sunday evening to 3000-3500 ft on Monday. Shower activity may become more vigorous, widespread, and convective with some embedded graupel on Monday afternoon.
The upper low moves onshore Monday night, but the general impact for our region will be broad troughing and generally light winds. This creates the conditions for decreasing scattered to isolated rain and snow showers through Tuesday. Expect snow levels to drop to 2500 ft (below seasonal norms).
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
Sunday
Night
Periods of light rain and snow (moderate in the evening for the eastern Olympics) become showery overnight. Decreasing moderate ridgeline winds.
Monday
A few isolated light rain and snow showers in the morning increase in intensity and become more widespread by the afternoon.
Sunday
Night
Increasing periods of light to occasionally moderate rain and snow. Light to moderate ridgeline winds.
Monday
A few isolated light rain and snow showers in the morning increase in intensity and become more widespread by the afternoon.
Sunday
Night
Increasing periods of light to occasionally moderate rain and snow. Decreasing light to moderate ridgeline winds.
Monday
A few isolated light rain and snow showers in the morning increase in intensity and become more widespread by the afternoon.
Sunday
Night
Light to moderate rain and snow in the evening transitions to light showers overnight. Decreasing moderate ridgeline winds.
Monday
Light to occasionally moderate rain and snow showers.
Sunday
Night
Periods of light rain and snow. Moderate ridgeline winds become light. Light to moderate E wind switches W overnight at the Pass.
Monday
A few isolated light rain and snow showers in the morning increase in intensity and become more widespread by the afternoon. Light ridgeline and W wind at the Pass.
Sunday
Night
Periods of light rain and snow. Moderate ridgeline winds become light. Light to moderate E wind switches W overnight at the Pass.
Monday
A few isolated light rain and snow showers in the morning increase in intensity and become more widespread by the afternoon. Light ridgeline and W wind at the Pass.
Sunday
Night
Increasing periods of light rain and snow. Moderate ridgeline winds become light.
Monday
A few isolated light rain and snow showers in the morning increase in intensity and become more widespread by the afternoon.
Sunday
Night
Periods of light rain and snow, heaviest in the late evening. Moderate ridgeline winds become light.
Monday
A few isolated light rain and snow showers in the morning increase in intensity and become more widespread by the afternoon.
Sunday
Night
Periods of light rain and snow, heaviest in the early evening. Increasing light to moderate ridgeline winds.
Monday
A few isolated light rain and snow showers in the morning increase in intensity and become more widespread by the afternoon.
Sunday
Night
Light rain and snow showers decrease and become showery overnight. Moderate ridgeline winds.
Monday
Light rain and snow showers increase slightly in the afternoon.
Issued: 2:38 PM PDT Sunday, March 30, 2025
Precipitation (in)
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
0.25
LT 0.10
LT 0.10
Mt Baker Ski Area
0.25 - 0.50
LT 0.25
LT 0.10
LT 0.10
Mt. Loop - Barlow Pass
0.25
LT 0.10
LT 0.25
LT 0.25
Stevens Pass
LT 0.25
LT 0.25
LT 0.25
LT 0.10
Snoqualmie Pass
LT 0.10
LT 0.25
LT 0.25
LT 0.25
Crystal Mt
0.25
LT 0.10
LT 0.10
LT 0.10
Paradise
0.25
LT 0.25
LT 0.10
LT 0.10
White Pass
LT 0.25
LT 0.25
LT 0.10
LT 0.10
Washington Pass
0.25
LT 0.25
LT 0.10
LT 0.10
Mission Ridge
LT 0.25
LT 0.10
LT 0.10
LT 0.10
Salmon la Sac - Gallagher Head
LT 0.25
LT 0.25
LT 0.10
LT 0.10
Tieton River - Darland Mt.
0.25
LT 0.10
LT 0.10
LT 0.10
Mt Hood Meadows
LT 0.25
LT 0.25
LT 0.10
LT 0.10
Timberline
LT 0.25
LT 0.25
LT 0.10
LT 0.10
Hurricane Ridge
Precipitation (in)
Sunday Night
LT 0.10
Monday
0.25
Monday Night
LT 0.10
Tuesday
LT 0.10
Mt Baker Ski Area
Precipitation (in)
Sunday Night
0.25 - 0.50
Monday
LT 0.25
Monday Night
LT 0.10
Tuesday
LT 0.10
Mt. Loop - Barlow Pass
Precipitation (in)
Sunday Night
0.25
Monday
LT 0.10
Monday Night
LT 0.25
Tuesday
LT 0.25
Stevens Pass
Precipitation (in)
Sunday Night
LT 0.25
Monday
LT 0.25
Monday Night
LT 0.25
Tuesday
LT 0.10
Snoqualmie Pass
Precipitation (in)
Sunday Night
LT 0.10
Monday
LT 0.25
Monday Night
LT 0.25
Tuesday
LT 0.25
Crystal Mt
Precipitation (in)
Sunday Night
0.25
Monday
LT 0.10
Monday Night
LT 0.10
Tuesday
LT 0.10
Paradise
Precipitation (in)
Sunday Night
0.25
Monday
LT 0.25
Monday Night
LT 0.10
Tuesday
LT 0.10
White Pass
Precipitation (in)
Sunday Night
LT 0.25
Monday
LT 0.25
Monday Night
LT 0.10
Tuesday
LT 0.10
Washington Pass
Precipitation (in)
Sunday Night
0.25
Monday
LT 0.25
Monday Night
LT 0.10
Tuesday
LT 0.10
Mission Ridge
Precipitation (in)
Sunday Night
LT 0.25
Monday
LT 0.10
Monday Night
LT 0.10
Tuesday
LT 0.10
Salmon la Sac - Gallagher Head
Precipitation (in)
Sunday Night
LT 0.25
Monday
LT 0.25
Monday Night
LT 0.10
Tuesday
LT 0.10
Tieton River - Darland Mt.
Precipitation (in)
Sunday Night
0.25
Monday
LT 0.10
Monday Night
LT 0.10
Tuesday
LT 0.10
Mt Hood Meadows
Precipitation (in)
Sunday Night
LT 0.25
Monday
LT 0.25
Monday Night
LT 0.10
Tuesday
LT 0.10
Timberline
Precipitation (in)
Sunday Night
LT 0.25
Monday
LT 0.25
Monday Night
LT 0.10
Tuesday
LT 0.10
Issued: 2:38 PM PDT Sunday, March 30, 2025
Snow Level (ft)
Sunday
Evening*
Sunday
Night
Monday
Morning
Monday
Afternoon
Monday
Evening
Monday
Night
Tuesday
Morning
Tuesday
Afternoon
Olympics
4500'
3500'
3000'
3500'
3000'
2500'
2500'
3500'
West North
4500'
4000'
3000'
3500'
3000'
3000'
3000'
3500'
West Central
4500'
4000'
3000'
3500'
3000'
3000'
3000'
3500'
West South
4500'
3500'
3000'
3500'
3000'
2500'
2500'
3500'
Stevens Pass
4500'
4000'
3000'
3500'
3000'
3000'
2500'
3500'
Snoqualmie Pass
4500'
4000'
3000'
3500'
3000'
3000'
2500'
3500'
East North
4500'
4000'
3000'
4000'
3000'
3000'
2500'
3500'
East Central
4500'
4000'
3000'
3500'
3000'
2500'
2500'
3500'
East South
4500'
3500'
3000'
3500'
3000'
2500'
2500'
3500'
Mt. Hood
5000'
3500'
3000'
3500'
3000'
2500'
2500'
3500'
Olympics
Elevation
Sunday
Evening*
4500'
Sunday
Night
3500'
Monday
Morning
3000'
Monday
Afternoon
3500'
Monday
Evening
3000'
Monday
Night
2500'
Tuesday
Morning
2500'
Tuesday
Afternoon
3500'
West North
Elevation
Sunday
Evening*
4500'
Sunday
Night
4000'
Monday
Morning
3000'
Monday
Afternoon
3500'
Monday
Evening
3000'
Monday
Night
3000'
Tuesday
Morning
3000'
Tuesday
Afternoon
3500'
West Central
Elevation
Sunday
Evening*
4500'
Sunday
Night
4000'
Monday
Morning
3000'
Monday
Afternoon
3500'
Monday
Evening
3000'
Monday
Night
3000'
Tuesday
Morning
3000'
Tuesday
Afternoon
3500'
West South
Elevation
Sunday
Evening*
4500'
Sunday
Night
3500'
Monday
Morning
3000'
Monday
Afternoon
3500'
Monday
Evening
3000'
Monday
Night
2500'
Tuesday
Morning
2500'
Tuesday
Afternoon
3500'
Stevens Pass
Elevation
Sunday
Evening*
4500'
Sunday
Night
4000'
Monday
Morning
3000'
Monday
Afternoon
3500'
Monday
Evening
3000'
Monday
Night
3000'
Tuesday
Morning
2500'
Tuesday
Afternoon
3500'
Snoqualmie Pass
Elevation
Sunday
Evening*
4500'
Sunday
Night
4000'
Monday
Morning
3000'
Monday
Afternoon
3500'
Monday
Evening
3000'
Monday
Night
3000'
Tuesday
Morning
2500'
Tuesday
Afternoon
3500'
East North
Elevation
Sunday
Evening*
4500'
Sunday
Night
4000'
Monday
Morning
3000'
Monday
Afternoon
4000'
Monday
Evening
3000'
Monday
Night
3000'
Tuesday
Morning
2500'
Tuesday
Afternoon
3500'
East Central
Elevation
Sunday
Evening*
4500'
Sunday
Night
4000'
Monday
Morning
3000'
Monday
Afternoon
3500'
Monday
Evening
3000'
Monday
Night
2500'
Tuesday
Morning
2500'
Tuesday
Afternoon
3500'
East South
Elevation
Sunday
Evening*
4500'
Sunday
Night
3500'
Monday
Morning
3000'
Monday
Afternoon
3500'
Monday
Evening
3000'
Monday
Night
2500'
Tuesday
Morning
2500'
Tuesday
Afternoon
3500'
Mt. Hood
Elevation
Sunday
Evening*
5000'
Sunday
Night
3500'
Monday
Morning
3000'
Monday
Afternoon
3500'
Monday
Evening
3000'
Monday
Night
2500'
Tuesday
Morning
2500'
Tuesday
Afternoon
3500'
Issued: 2:38 PM PDT Sunday, March 30, 2025
5000' Temperatures (°F)
Sunday
Night
Monday
Max / Min
Max / Min
Olympics
36 / 27
32 / 26
West North
36 / 29
32 / 27
West Central
36 / 29
32 / 26
West South
36 / 27
32 / 26
Stevens Pass
36 / 27
33 / 26
Snoqualmie Pass
35 / 26
32 / 25
East North
35 / 26
35 / 24
East Central
35 / 28
33 / 26
East South
34 / 25
32 / 24
Mt. Hood
35 / 26
31 / 26
Olympics
5000' Temperature Forecast (Max / Min)
Sunday
Night
36 / 27
Monday
32 / 26
West North
5000' Temperature Forecast (Max / Min)
Sunday
Night
36 / 29
Monday
32 / 27
West Central
5000' Temperature Forecast (Max / Min)
Sunday
Night
36 / 29
Monday
32 / 26
West South
5000' Temperature Forecast (Max / Min)
Sunday
Night
36 / 27
Monday
32 / 26
Stevens Pass
5000' Temperature Forecast (Max / Min)
Sunday
Night
36 / 27
Monday
33 / 26
Snoqualmie Pass
5000' Temperature Forecast (Max / Min)
Sunday
Night
35 / 26
Monday
32 / 25
East North
5000' Temperature Forecast (Max / Min)
Sunday
Night
35 / 26
Monday
35 / 24
East Central
5000' Temperature Forecast (Max / Min)
Sunday
Night
35 / 28
Monday
33 / 26
East South
5000' Temperature Forecast (Max / Min)
Sunday
Night
34 / 25
Monday
32 / 24
Mt. Hood
5000' Temperature Forecast (Max / Min)
Sunday
Night
35 / 26
Monday
31 / 26
Issued: 2:38 PM PDT Sunday, March 30, 2025
Ridgeline Winds (mph)
Sunday
Evening
Sunday
Night
Monday
Morning
Monday
Afternoon
Olympics
ESE 15-25
SSW 10-20
SSW 0-10
VAR 0-10
West North
ESE 10-20
S 10-20
S 5-15
WSW 0-10
West Central
ESE 20-30
SSW 10-20
SSW 5-15
W 0-10
West South
SSE 15-25
SW 10-20
SSW 5-15
WSW 5-15
Stevens Pass
ESE 15-25
WSW 5-15
W 0-10
W 5-15
Snoqualmie Pass
ESE 25-35
WSW 10-20
W 5-15
WNW 5-15
East North
ESE 15-25
S 5-15
WSW 5-15
W 5-15
East Central
ESE 15-25
WSW 5-15
WSW 0-10
W 5-15
East South
SSE 10-20
WSW 5-15
WSW 5-15
W 5-15
Mt. Hood
SW 20-30
SW 15-25
SW 15-25
WSW 15-25
Olympics
Ridgeline Winds (mph)
Sunday
Evening
ESE
15-25
Sunday
Night
SSW
10-20
Monday
Morning
SSW
0-10
Monday
Afternoon
VAR
0-10
West North
Ridgeline Winds (mph)
Sunday
Evening
ESE
10-20
Sunday
Night
S
10-20
Monday
Morning
S
5-15
Monday
Afternoon
WSW
0-10
West Central
Ridgeline Winds (mph)
Sunday
Evening
ESE
20-30
Sunday
Night
SSW
10-20
Monday
Morning
SSW
5-15
Monday
Afternoon
W
0-10
West South
Ridgeline Winds (mph)
Sunday
Evening
SSE
15-25
Sunday
Night
SW
10-20
Monday
Morning
SSW
5-15
Monday
Afternoon
WSW
5-15
Stevens Pass
Ridgeline Winds (mph)
Sunday
Evening
ESE
15-25
Sunday
Night
WSW
5-15
Monday
Morning
W
0-10
Monday
Afternoon
W
5-15
Snoqualmie Pass
Ridgeline Winds (mph)
Sunday
Evening
ESE
25-35
Sunday
Night
WSW
10-20
Monday
Morning
W
5-15
Monday
Afternoon
WNW
5-15
East North
Ridgeline Winds (mph)
Sunday
Evening
ESE
15-25
Sunday
Night
S
5-15
Monday
Morning
WSW
5-15
Monday
Afternoon
W
5-15
East Central
Ridgeline Winds (mph)
Sunday
Evening
ESE
15-25
Sunday
Night
WSW
5-15
Monday
Morning
WSW
0-10
Monday
Afternoon
W
5-15
East South
Ridgeline Winds (mph)
Sunday
Evening
SSE
10-20
Sunday
Night
WSW
5-15
Monday
Morning
WSW
5-15
Monday
Afternoon
W
5-15
Mt. Hood
Ridgeline Winds (mph)
Sunday
Evening
SW
20-30
Sunday
Night
SW
15-25
Monday
Morning
SW
15-25
Monday
Afternoon
WSW
15-25
Issued: 2:38 PM PDT Sunday, March 30, 2025
Extended Weather Synopsis
A weak disturbance arrives from the NW Tuesday night, keeping some light snow showers in the forecast along with a chance for weak convergence. Flow switches more northerly on Wednesday with continued chances for very light snow showers and cloudiness along the W slopes of the Cascades. Northly flow should bring drier weather on Thursday. Temperatures remain below seasonal norms.
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).