Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

Hazardous Weather Conditions

Air Stagnation Advisory in effect from December 29, 11:45 AM PST until January 1, 12:00 PM PST

Current conditions at

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

13°F

-11°C

Humidity	90%
Wind Speed	NW 0 MPH
Barometer	NA
Dewpoint	11°F (-12°C)
Visibility	NA
Last update	31 Dec 07:06 AM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

16 Miles SW Twisp WA

Air Stagnation Advisory until January 1, 12:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Air Stagnation Advisory until January 1, 12:00pm
NOW until 12:00pm Thu
Air Stagnation Advisory
Today
High: 31 °F⇓
Mostly Sunny
Tonight
Low: 20 °F
Partly Cloudy
New Year's Day
High: 27 °F
Mostly Cloudy
then Slight
Chance Snow
Thursday Night
Low: 17 °F
Chance Snow
Friday
High: 22 °F
Snow Likely
Friday Night
Low: 21 °F
Snow Likely
Saturday
High: 23 °F
Snow
Saturday Night
Low: 19 °F
Snow Likely

Detailed Forecast

Today

Mostly sunny, with a temperature rising to near 31 by 10am, then falling to around 24 during the remainder of the day. West wind 3 to 7 mph.

Tonight

Partly cloudy, with a low around 20. West wind around 7 mph.

New Year's Day

A 10 percent chance of snow after 4pm. Mostly cloudy, with a high near 27. West wind 5 to 7 mph.

Thursday Night

A 40 percent chance of snow, mainly after 10pm. Cloudy, with a low around 17. West wind around 6 mph. New snow accumulation of less than one inch possible.

Friday

Snow likely, mainly after 10am. Mostly cloudy, with a high near 22. West wind around 7 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Friday Night

Snow likely. Cloudy, with a low around 21. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Saturday

Snow. High near 23. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Saturday Night

Snow likely, mainly before 4am. Mostly cloudy, with a low around 19. Chance of precipitation is 70%.

Sunday

A 50 percent chance of snow. Mostly cloudy, with a high near 22.

Sunday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 15.

Monday

A 30 percent chance of snow. Partly sunny, with a high near 21.