Quiet weather should give the region some time to dry out in the short-term. Some low clouds remain banked against the west slopes of the Cascades as WNW flow continues behind a departed storm system through Saturday. A very weak disturbance in the early morning hours Saturday could touch off a few flurries in the North Cascades. Temperatures start the weekend slightly below seasonal norms west of the Cascade Crest and near seasonal norms with downslope flow further east.
An expanding high pressure brings a retreat in cloud cover and a warming trend late Saturday through Sunday. Cool air will remain entrenched east of the Cascades Saturday night as low-level E flow develops. However, temperatures warm quickly under filtered sunshine on Sunday. The region will experience high temperatures up to 5-25F above normal and freezing levels rising to 6,000-11,000 ft.
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
Friday
Night
Increasing partial low cloud cover.
Saturday
Partly cloudy with some filtered sunshine.
Friday
Night
Partly cloudy.
Saturday
Partly cloudy with some filtered sunshine.
Friday
Night
Saturday
Mostly cloudy with a chance of snow flurries.
Friday
Night
Partly cloudy.
Saturday
Partly cloudy with some filtered sunshine.
Friday
Night
Partly cloudy. Light W wind at the Pass.
Saturday
Partly cloudy with some filtered sunshine. Light W wind at the Pass.
Friday
Night
Partly cloudy. Light W wind at the Pass.
Saturday
Partly cloudy with some filtered sunshine. Light W wind at the Pass.
Friday
Night
A few clouds.
Saturday
Partly cloudy with some filtered sunshine.
Friday
Night
Mostly clear.
Saturday
Partly cloudy with some filtered sunshine.
Friday
Night
Mostly clear.
Saturday
Mostly sunny with filtered sunshine at times.
Friday
Night
Mostly cloudy in the evening with decreasing clouds.
Saturday
Mostly sunny.
Issued: 2:03 PM PST Friday, November 19, 2021
Precipitation (in)
Friday Night
Saturday
Saturday Night
Sunday
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)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Mt Baker Ski Area
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Mt. Loop - Barlow Pass
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Stevens Pass
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Snoqualmie Pass
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Crystal Mt
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Paradise
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
White Pass
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Washington Pass
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Mission Ridge
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Salmon la Sac - Gallagher Head
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Tieton River - Darland Mt.
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Mt Hood Meadows
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Timberline
Precipitation (in)
Friday Night
0
Saturday
0
Saturday Night
0
Sunday
0
Issued: 2:03 PM PST Friday, November 19, 2021
Snow Level (ft)
Friday
Evening
Friday
Night
Saturday
Morning
Saturday
Afternoon
Saturday
Evening*
Saturday
Night*
Sunday
Morning*
Sunday
Afternoon*
Olympics
3500'
2500'
2500'
4000'
3500'
3500'
5000'
1000'
West North
3500'
2000'
2500'
3500'
3000'
2500'
2500'
7500'
West Central
3000'
2000'
3000'
3500'
3000'
2500'
3000'
9000'
West South
3500'
3000'
3000'
4000'
3000'
3500'
4500'
10000'
Stevens Pass
2500'
2500'
2500'
3500'
3000'
2000'
3000'
9000'
Snoqualmie Pass
2500'
3000'
3000'
3500'
3000'
2000'
3000'
9000'
East North
2500'
2000'
2000'
3500'
3000'
2000'
2000'
6500'
East Central
3000'
2000'
2000'
3500'
3000'
2500'
3000'
7500'
East South
4000'
3000'
2500'
4000'
3000'
3000'
4000'
10500'
Mt. Hood
4000'
4000'
3500'
5000'
6000'
6500'
7500'
11000'
Olympics
Elevation
Friday
Evening
3500'
Friday
Night
2500'
Saturday
Morning
2500'
Saturday
Afternoon
4000'
Saturday
Evening*
3500'
Saturday
Night*
3500'
Sunday
Morning*
5000'
Sunday
Afternoon*
1000'
West North
Elevation
Friday
Evening
3500'
Friday
Night
2000'
Saturday
Morning
2500'
Saturday
Afternoon
3500'
Saturday
Evening*
3000'
Saturday
Night*
2500'
Sunday
Morning*
2500'
Sunday
Afternoon*
7500'
West Central
Elevation
Friday
Evening
3000'
Friday
Night
2000'
Saturday
Morning
3000'
Saturday
Afternoon
3500'
Saturday
Evening*
3000'
Saturday
Night*
2500'
Sunday
Morning*
3000'
Sunday
Afternoon*
9000'
West South
Elevation
Friday
Evening
3500'
Friday
Night
3000'
Saturday
Morning
3000'
Saturday
Afternoon
4000'
Saturday
Evening*
3000'
Saturday
Night*
3500'
Sunday
Morning*
4500'
Sunday
Afternoon*
10000'
Stevens Pass
Elevation
Friday
Evening
2500'
Friday
Night
2500'
Saturday
Morning
2500'
Saturday
Afternoon
3500'
Saturday
Evening*
3000'
Saturday
Night*
2000'
Sunday
Morning*
3000'
Sunday
Afternoon*
9000'
Snoqualmie Pass
Elevation
Friday
Evening
2500'
Friday
Night
3000'
Saturday
Morning
3000'
Saturday
Afternoon
3500'
Saturday
Evening*
3000'
Saturday
Night*
2000'
Sunday
Morning*
3000'
Sunday
Afternoon*
9000'
East North
Elevation
Friday
Evening
2500'
Friday
Night
2000'
Saturday
Morning
2000'
Saturday
Afternoon
3500'
Saturday
Evening*
3000'
Saturday
Night*
2000'
Sunday
Morning*
2000'
Sunday
Afternoon*
6500'
East Central
Elevation
Friday
Evening
3000'
Friday
Night
2000'
Saturday
Morning
2000'
Saturday
Afternoon
3500'
Saturday
Evening*
3000'
Saturday
Night*
2500'
Sunday
Morning*
3000'
Sunday
Afternoon*
7500'
East South
Elevation
Friday
Evening
4000'
Friday
Night
3000'
Saturday
Morning
2500'
Saturday
Afternoon
4000'
Saturday
Evening*
3000'
Saturday
Night*
3000'
Sunday
Morning*
4000'
Sunday
Afternoon*
10500'
Mt. Hood
Elevation
Friday
Evening
4000'
Friday
Night
4000'
Saturday
Morning
3500'
Saturday
Afternoon
5000'
Saturday
Evening*
6000'
Saturday
Night*
6500'
Sunday
Morning*
7500'
Sunday
Afternoon*
11000'
Issued: 2:03 PM PST Friday, November 19, 2021
5000' Temperatures (°F)
Friday
Night
Saturday
Max / Min
Max / Min
Olympics
24 / 21
29 / 20
West North
24 / 20
26 / 20
West Central
23 / 17
27 / 22
West South
24 / 21
33 / 20
Stevens Pass
23 / 18
29 / 22
Snoqualmie Pass
22 / 17
29 / 22
East North
25 / 19
31 / 19
East Central
24 / 21
32 / 21
East South
25 / 23
37 / 23
Mt. Hood
27 / 26
36 / 25
Olympics
5000' Temperature Forecast (Max / Min)
Friday
Night
24 / 21
Saturday
29 / 20
West North
5000' Temperature Forecast (Max / Min)
Friday
Night
24 / 20
Saturday
26 / 20
West Central
5000' Temperature Forecast (Max / Min)
Friday
Night
23 / 17
Saturday
27 / 22
West South
5000' Temperature Forecast (Max / Min)
Friday
Night
24 / 21
Saturday
33 / 20
Stevens Pass
5000' Temperature Forecast (Max / Min)
Friday
Night
23 / 18
Saturday
29 / 22
Snoqualmie Pass
5000' Temperature Forecast (Max / Min)
Friday
Night
22 / 17
Saturday
29 / 22
East North
5000' Temperature Forecast (Max / Min)
Friday
Night
25 / 19
Saturday
31 / 19
East Central
5000' Temperature Forecast (Max / Min)
Friday
Night
24 / 21
Saturday
32 / 21
East South
5000' Temperature Forecast (Max / Min)
Friday
Night
25 / 23
Saturday
37 / 23
Mt. Hood
5000' Temperature Forecast (Max / Min)
Friday
Night
27 / 26
Saturday
36 / 25
Issued: 2:03 PM PST Friday, November 19, 2021
Ridgeline Winds (mph)
Friday
Evening
Friday
Night
Saturday
Morning
Saturday
Afternoon
Olympics
WNW 0-10
W 5-15
WNW 0-10
WSW 0-10
West North
WSW 5-15
W 5-15
WSW 0-10
SW 0-10
West Central
NW 5-15
WNW 5-15
WNW 5-15
NW 0-10
West South
NW 5-15
WNW 0-10
NW 0-10
NW 0-10
Stevens Pass
WNW 5-15
WNW 5-15
WNW 5-15
WNW 0-10
Snoqualmie Pass
NW 10-20
NW 10-20
NW 10-20
NW 0-10
East North
WNW 10-20
WNW 10-20
WNW 10-20
WNW 5-15
East Central
WNW 10-20
NW 10-20
NW 10-20
WNW 5-15
East South
NW 10-20
WNW 5-15
NW 0-10
SW 0-10
Mt. Hood
NW 15-25
NW 10-20
NW 10-20
NW 0-10
Olympics
Ridgeline Winds (mph)
Friday
Evening
WNW
0-10
Friday
Night
W
5-15
Saturday
Morning
WNW
0-10
Saturday
Afternoon
WSW
0-10
West North
Ridgeline Winds (mph)
Friday
Evening
WSW
5-15
Friday
Night
W
5-15
Saturday
Morning
WSW
0-10
Saturday
Afternoon
SW
0-10
West Central
Ridgeline Winds (mph)
Friday
Evening
NW
5-15
Friday
Night
WNW
5-15
Saturday
Morning
WNW
5-15
Saturday
Afternoon
NW
0-10
West South
Ridgeline Winds (mph)
Friday
Evening
NW
5-15
Friday
Night
WNW
0-10
Saturday
Morning
NW
0-10
Saturday
Afternoon
NW
0-10
Stevens Pass
Ridgeline Winds (mph)
Friday
Evening
WNW
5-15
Friday
Night
WNW
5-15
Saturday
Morning
WNW
5-15
Saturday
Afternoon
WNW
0-10
Snoqualmie Pass
Ridgeline Winds (mph)
Friday
Evening
NW
10-20
Friday
Night
NW
10-20
Saturday
Morning
NW
10-20
Saturday
Afternoon
NW
0-10
East North
Ridgeline Winds (mph)
Friday
Evening
WNW
10-20
Friday
Night
WNW
10-20
Saturday
Morning
WNW
10-20
Saturday
Afternoon
WNW
5-15
East Central
Ridgeline Winds (mph)
Friday
Evening
WNW
10-20
Friday
Night
NW
10-20
Saturday
Morning
NW
10-20
Saturday
Afternoon
WNW
5-15
East South
Ridgeline Winds (mph)
Friday
Evening
NW
10-20
Friday
Night
WNW
5-15
Saturday
Morning
NW
0-10
Saturday
Afternoon
SW
0-10
Mt. Hood
Ridgeline Winds (mph)
Friday
Evening
NW
15-25
Friday
Night
NW
10-20
Saturday
Morning
NW
10-20
Saturday
Afternoon
NW
0-10
Issued: 2:03 PM PST Friday, November 19, 2021
Extended Weather Synopsis
Dry weather persists through Monday as the ridge shifts eastward. However, a quick-moving weak system arrives Monday night or Tuesday and brings a return to more active weather. Temperatures should return to slightly below seasonal norms through the middle of the week. Models indicate the potential for warmer and wetter weather later in the week.
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).