Issued: 1:55 PM PST Sunday, February 9, 2025
by Dallas Glass

Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather

Weather Synopsis

A few stray showers and light flurries continue to fall in some parts of the Olympics and southern Cascades, but overall, the trend will be towards drier and colder conditions. A high pressure ridge in the eastern Pacific will slowly take control of our weather for the next several days. While there's a bit of nuance in each 12-hour forecast block, generally expect mostly clear skies with very cold nights and a slight bit of daytime warming. 

Overnight, low clouds and fog will be common in the mountain valleys and passes. Higher up the hillsides, it should be mostly clear. This will allow for temperatures to cool dramatically, especially in the East North zone. Many locations will experience nighttime lows near 10 F. Brrr! 

On Monday, a weak and dry short-wave disturbance moves south from British Columbia. It should help push the low clouds further and further south. While this system should be mostly dry, areas in the southern forecast zones and Mt Hood could see a few flurries late in the day. The most notable part of this subtle trough will be a slight uptick in easterly winds. Right now, this doesn't look like a major wind event, but it will be noticeable in the Passes and along the Cascade crest. Winds should peak in the late afternoon or early evening hours. 

Clear skies and cold northerly flow aloft will once again let temperatures plummet Monday night. Sunshine on Tuesday will help the mountains warm slightly, but overall, it's going to be quite cold for the Pacific Northwest. Many mountain locations may struggle to reach the mid to upper teens in the afternoon. This same very cold, clear night and sunny but chilly day pattern hangs with us through at least the middle of the week. 

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 Mostly clear with low clouds and fog. Cold. A few upslope showers possible in the northern part of the range.
Monday Mostly sunny and cold with patchy low clouds.
Sunday Night Mostly clear with low clouds and fog. Cold.
Monday Mostly sunny and cold with patchy low clouds.
Sunday Night Mostly clear with low clouds and fog. Cold.
Monday Mostly sunny with patchy low clouds and fog. Clouds may increase in the afternoon. Cold.
Sunday Night Low clouds and fog, mostly clear above. A few stray showers possible. Cold.
Monday Partly to mostly sunny with low clouds and fog in the morning. Low clouds increasing in the afternoon with a few isolated showers possible. Cold.
Sunday Night Mostly clear with low clouds and fog in the Pass. Cold. Easterly flow developing overnight.
Monday Mostly sunny with patchy low clouds and fog. Clouds could increase in the afternoon. Cold. Light easterly flow increasing slightly during the day.
Sunday Night Mostly clear with low clouds and fog at pass level. A few flurries possible. Cold. Light easterly flow developing overnight.
Monday Mostly sunny with patchy low clouds and fog, mainly at the Pass proper. Clouds could increase in the afternoon with a few flurries. Cold. Light easterly flow increasing slightly.
Sunday Night Mostly clear with patchy low clouds and valley fog. Very cold with mountain temperatures in the single digits.
Monday Mostly sunny with a few low clouds and patches of fog. Very cold with mountain temperatures mostly in the single digits.
Sunday Night Mostly clear with areas of low clouds and fog. Cold
Monday Mostly sunny with a few low clouds. Clouds may increase slightly in the afternoon. Cold.
Sunday Night Mostly clear with low clouds and valley fog. A few flurries possible. Cold.
Monday Mostly sunny with low clouds and valley fog. Clouds could increase in the afternoon along with a few flurries. Cold.
Sunday Night Mostly clear with patchy low clouds and valley fog. A few flurries possible. Cold.
Monday Mostly sunny with patchy low clouds and fog. Clouds could increase in the afternoon along with a few very light snow showers. Cold.

Issued: 1:55 PM PST Sunday, February 9, 2025

Precipitation (in)

Sunday Night Monday Monday Night Tuesday
4 pm - 4 am 4 am - 4 pm 4 pm - 4 am 4 am - 4 pm
Hurricane Ridge 0 0 0 0
Mt Baker Ski Area 0 0 0 0
Mt. Loop - Barlow Pass 0 0 0 0
Stevens Pass 0 0 0 0
Snoqualmie Pass 0 0 0 0
Crystal Mt 0 0 0 0
Paradise 0 0 0 0
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 0
Hurricane Ridge Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Mt Baker Ski Area Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Mt. Loop - Barlow Pass Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Stevens Pass Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Snoqualmie Pass Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Crystal Mt Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Paradise Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
White Pass Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Washington Pass Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Mission Ridge Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Salmon la Sac - Gallagher Head Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Tieton River - Darland Mt. Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Mt Hood Meadows Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0
Timberline Precipitation (in)
Sunday Night 0
Monday 0
Monday Night 0
Tuesday 0

Issued: 1:55 PM PST Sunday, February 9, 2025

Snow Level (ft)

Sunday Evening Sunday Night* Monday Morning* Monday Afternoon* Monday Evening* Monday Night* Tuesday Morning* Tuesday Afternoon*
Olympics 500' 0 0 1000' 0 0 0 1500'
West North 0 0 0 1000' 0 0 0 1500'
West Central 0 0 0 1500' 0 0 0 1500'
West South 0 0 0 1500' 0 0 0 1500'
Stevens Pass 0 0 0 1000' 0 0 0 1000'
Snoqualmie Pass 0 0 0 1500' 0 0 0 1000'
East North 0 0 0 500' 0 0 0 500'
East Central 0 0 0 500' 0 0 0 500'
East South 0 0 0 1000' 0 0 0 500'
Mt. Hood 0 0 0 1500' 0 0 0 500'
Olympics Elevation
Sunday Evening 500'
Sunday Night* 0'
Monday Morning* 0'
Monday Afternoon* 1000'
Monday Evening* 0'
Monday Night* 0'
Tuesday Morning* 0'
Tuesday Afternoon* 1500'
West North Elevation
Sunday Evening 0'
Sunday Night* 0'
Monday Morning* 0'
Monday Afternoon* 1000'
Monday Evening* 0'
Monday Night* 0'
Tuesday Morning* 0'
Tuesday Afternoon* 1500'
West Central Elevation
Sunday Evening 0'
Sunday Night* 0'
Monday Morning* 0'
Monday Afternoon* 1500'
Monday Evening* 0'
Monday Night* 0'
Tuesday Morning* 0'
Tuesday Afternoon* 1500'
West South Elevation
Sunday Evening 0'
Sunday Night* 0'
Monday Morning* 0'
Monday Afternoon* 1500'
Monday Evening* 0'
Monday Night* 0'
Tuesday Morning* 0'
Tuesday Afternoon* 1500'
Stevens Pass Elevation
Sunday Evening 0'
Sunday Night* 0'
Monday Morning* 0'
Monday Afternoon* 1000'
Monday Evening* 0'
Monday Night* 0'
Tuesday Morning* 0'
Tuesday Afternoon* 1000'
Snoqualmie Pass Elevation
Sunday Evening 0'
Sunday Night* 0'
Monday Morning* 0'
Monday Afternoon* 1500'
Monday Evening* 0'
Monday Night* 0'
Tuesday Morning* 0'
Tuesday Afternoon* 1000'
East North Elevation
Sunday Evening 0'
Sunday Night* 0'
Monday Morning* 0'
Monday Afternoon* 500'
Monday Evening* 0'
Monday Night* 0'
Tuesday Morning* 0'
Tuesday Afternoon* 500'
East Central Elevation
Sunday Evening 0'
Sunday Night* 0'
Monday Morning* 0'
Monday Afternoon* 500'
Monday Evening* 0'
Monday Night* 0'
Tuesday Morning* 0'
Tuesday Afternoon* 500'
East South Elevation
Sunday Evening 0'
Sunday Night* 0'
Monday Morning* 0'
Monday Afternoon* 1000'
Monday Evening* 0'
Monday Night* 0'
Tuesday Morning* 0'
Tuesday Afternoon* 500'
Mt. Hood Elevation
Sunday Evening 0'
Sunday Night* 0'
Monday Morning* 0'
Monday Afternoon* 1500'
Monday Evening* 0'
Monday Night* 0'
Tuesday Morning* 0'
Tuesday Afternoon* 500'

Issued: 1:55 PM PST Sunday, February 9, 2025

5000' Temperatures (°F)

Sunday Night Monday
Max / Min Max / Min
Olympics 22 / 14 20 / 12
West North 23 / 12 20 / 11
West Central 24 / 12 22 / 12
West South 22 / 10 19 / 10
Stevens Pass 21 / 10 17 / 10
Snoqualmie Pass 23 / 12 18 / 13
East North 13 / 1 11 / 0
East Central 20 / 10 18 / 10
East South 22 / 11 17 / 10
Mt. Hood 22 / 13 19 / 13
Olympics 5000' Temperature Forecast
(Max / Min)
Sunday Night 22 / 14
Monday 20 / 12
West North 5000' Temperature Forecast
(Max / Min)
Sunday Night 23 / 12
Monday 20 / 11
West Central 5000' Temperature Forecast
(Max / Min)
Sunday Night 24 / 12
Monday 22 / 12
West South 5000' Temperature Forecast
(Max / Min)
Sunday Night 22 / 10
Monday 19 / 10
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Sunday Night 21 / 10
Monday 17 / 10
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Sunday Night 23 / 12
Monday 18 / 13
East North 5000' Temperature Forecast
(Max / Min)
Sunday Night 13 / 1
Monday 11 / 0
East Central 5000' Temperature Forecast
(Max / Min)
Sunday Night 20 / 10
Monday 18 / 10
East South 5000' Temperature Forecast
(Max / Min)
Sunday Night 22 / 11
Monday 17 / 10
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Sunday Night 22 / 13
Monday 19 / 13

Issued: 1:55 PM PST Sunday, February 9, 2025

Ridgeline Winds (mph)

Sunday Evening Sunday Night Monday Morning Monday Afternoon
Olympics VAR 0-10 VAR 0-10 ENE 0-10 ENE 5-15
West North VAR 0-10 NE 0-10 ENE 5-15 ENE 5-15
West Central VAR 0-10 VAR 0-10 ENE 5-15 ENE 5-15
West South VAR 0-10 VAR 0-10 ESE 5-15 ESE 5-15
Stevens Pass VAR 0-10 E 0-10 ESE 5-15 ESE 5-15
Snoqualmie Pass NW 0-10 E 0-10 ESE 5-15 ESE 5-15
East North NNW 0-10 VAR 0-10 ENE 0-10 ENE 5-15
East Central NNW 0-10 SSE 0-10 E 5-15 E 5-15
East South NW 0-10 SSE 0-10 SE 5-15 ESE 5-15
Mt. Hood NW 0-10 NW 0-10 VAR 0-10 E 5-15
Olympics Ridgeline Winds (mph)
Sunday Evening VAR 0-10
Sunday Night VAR 0-10
Monday Morning ENE 0-10
Monday Afternoon ENE 5-15
West North Ridgeline Winds (mph)
Sunday Evening VAR 0-10
Sunday Night NE 0-10
Monday Morning ENE 5-15
Monday Afternoon ENE 5-15
West Central Ridgeline Winds (mph)
Sunday Evening VAR 0-10
Sunday Night VAR 0-10
Monday Morning ENE 5-15
Monday Afternoon ENE 5-15
West South Ridgeline Winds (mph)
Sunday Evening VAR 0-10
Sunday Night VAR 0-10
Monday Morning ESE 5-15
Monday Afternoon ESE 5-15
Stevens Pass Ridgeline Winds (mph)
Sunday Evening VAR 0-10
Sunday Night E 0-10
Monday Morning ESE 5-15
Monday Afternoon ESE 5-15
Snoqualmie Pass Ridgeline Winds (mph)
Sunday Evening NW 0-10
Sunday Night E 0-10
Monday Morning ESE 5-15
Monday Afternoon ESE 5-15
East North Ridgeline Winds (mph)
Sunday Evening NNW 0-10
Sunday Night VAR 0-10
Monday Morning ENE 0-10
Monday Afternoon ENE 5-15
East Central Ridgeline Winds (mph)
Sunday Evening NNW 0-10
Sunday Night SSE 0-10
Monday Morning E 5-15
Monday Afternoon E 5-15
East South Ridgeline Winds (mph)
Sunday Evening NW 0-10
Sunday Night SSE 0-10
Monday Morning SE 5-15
Monday Afternoon ESE 5-15
Mt. Hood Ridgeline Winds (mph)
Sunday Evening NW 0-10
Sunday Night NW 0-10
Monday Morning VAR 0-10
Monday Afternoon E 5-15

Issued: 1:55 PM PST Sunday, February 9, 2025

Extended Weather Synopsis

The PNW sits on the leading edge of a high pressure ridge that reaches all the way up into Alaska. The northerly flow aloft will draw cold, dry, arctic air into the region. This will provide a predictable but somewhat anomalous pattern. Expect very cold and clear nights with 5000 ft temperatures frequently dipping into the low teens or even single digits. Sunny skies will help temperatures warm slightly during the day, but mountain areas will stay well below freezing. When will this pattern break? There's still a lot of variability in the weather models, but most show storms trying to displace the high pressure ridge late in the week. We'll have to keep watching this to see how and when the frigid pattern let's go. 

Extended Snow Level (ft)

Tuesday Night* Wednesday * Wednesday Night* Thursday *
West North 0 2000' 0 2000'
Snoqualmie Pass 0 1000' 0 1000'
Mt. Hood 0 1000' 0 1000'
West North Elevation
Tuesday Night* 0'
Wednesday * 2000'
Wednesday Night* 0'
Thursday * 2000'
Snoqualmie Pass Elevation
Tuesday Night* 0'
Wednesday * 1000'
Wednesday Night* 0'
Thursday * 1000'
Mt. Hood Elevation
Tuesday Night* 0'
Wednesday * 1000'
Wednesday Night* 0'
Thursday * 1000'

Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather

Previous forecast from Feb 9, 2025

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).

The label LT, is shorthand for ‘less than’.