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	89%
Wind Speed	NNW 1 MPH
Barometer	NA
Dewpoint	10°F (-12°C)
Visibility	NA
Last update	31 Dec 06:06 AM PST

More Information:

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

Extended Forecast for

10 Miles W 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: 33 °F
Mostly Sunny
Tonight
Low: 22 °F
Partly Cloudy
New Year's Day
High: 34 °F
Partly Sunny
then Slight
Chance Snow
Thursday Night
Low: 23 °F
Chance Snow
Friday
High: 32 °F
Chance Snow
Friday Night
Low: 30 °F
Rain/Snow
Likely
Saturday
High: 36 °F
Rain/Snow
Saturday Night
Low: 30 °F
Rain/Snow
Likely

Detailed Forecast

Today

Mostly sunny, with a high near 33. Calm wind.

Tonight

Partly cloudy, with a low around 22. Calm wind.

New Year's Day

A 10 percent chance of snow after 4pm. Mostly cloudy, with a high near 34. Calm wind.

Thursday Night

A 40 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 23. Calm wind. New snow accumulation of less than a half inch possible.

Friday

A 50 percent chance of snow. Mostly cloudy, with a high near 32. Calm wind. New snow accumulation of less than a half inch possible.

Friday Night

Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 30. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Saturday

Rain, possibly mixed with snow. High near 36. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Saturday Night

Rain and snow likely, becoming all snow after 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 70%.

Sunday

A 50 percent chance of snow. Mostly cloudy, with a high near 36.

Sunday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 26.

Monday

A 30 percent chance of snow. Partly sunny, with a high near 35.

Monday Night

A 20 percent chance of snow. Partly cloudy, with a low around 25.