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.

14°F

-10°C

Humidity	90%
Wind Speed	SW 0 MPH
Barometer	NA
Dewpoint	12°F (-11°C)
Visibility	NA
Last update	31 Dec 05:06 AM PST

More Information:

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

Extended Forecast for

12 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
Overnight
Low: 23 °F
Mostly Cloudy
Wednesday
High: 32 °F
Mostly Sunny
Wednesday Night
Low: 22 °F
Partly Cloudy
New Year's Day
High: 30 °F
Partly Sunny
then Slight
Chance Snow
Thursday Night
Low: 22 °F
Chance Snow
Friday
High: 29 °F
Chance Snow
Friday Night
Low: 28 °F
Snow Likely
Saturday
High: 32 °F
Snow

Detailed Forecast

Overnight

Mostly cloudy, with a low around 23. Calm wind.

Wednesday

Mostly sunny, with a high near 32. Calm wind.

Wednesday Night

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 30. Calm wind.

Thursday Night

A 40 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 22. 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 29. New snow accumulation of less than a half inch possible.

Friday Night

Snow likely. Mostly cloudy, with a low around 28. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Saturday

Snow. High near 32. Chance of precipitation is 80%.

Saturday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 28. Chance of precipitation is 70%.

Sunday

A 40 percent chance of snow. Partly sunny, with a high near 32.

Sunday Night

A 30 percent chance of snow. Mostly cloudy, with a low around 24.