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	87%
Wind Speed	W 2 MPH
Barometer	NA
Dewpoint	10°F (-12°C)
Visibility	NA
Last update	31 Dec 08:06 AM PST

More Information:

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

Extended Forecast for

9 Miles SE 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: 28 °F
Mostly Sunny
Tonight
Low: 22 °F
Partly Cloudy
New Year's Day
High: 27 °F
Mostly Cloudy
Thursday Night
Low: 21 °F
Slight Chance
Snow
Friday
High: 26 °F
Chance Snow
Friday Night
Low: 25 °F
Chance Snow
Saturday
High: 30 °F
Snow Likely
Saturday Night
Low: 27 °F
Chance Snow

Detailed Forecast

Today

Mostly sunny, with a high near 28. Southwest wind 5 to 7 mph becoming calm in the morning.

Tonight

Partly cloudy, with a low around 22. Southeast wind around 7 mph becoming north in the evening.

New Year's Day

Mostly cloudy, with a high near 27. Northwest wind 5 to 7 mph becoming calm in the afternoon.

Thursday Night

A 20 percent chance of snow. Mostly cloudy, with a low around 21. Northwest wind 3 to 5 mph.

Friday

A 30 percent chance of snow, mainly after 10am. Mostly cloudy, with a high near 26. Light and variable wind. New snow accumulation of less than a half inch possible.

Friday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.

Saturday

Snow likely. Mostly cloudy, with a high near 30. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 27.

Sunday

A 30 percent chance of snow. Mostly cloudy, with a high near 30.

Sunday Night

A 20 percent chance of snow before 4am. Mostly cloudy, with a low around 25.

Monday

A 20 percent chance of snow. Partly sunny, with a high near 30.