Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on 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	91%
Wind Speed	NNW 0 MPH
Barometer	NA
Dewpoint	11°F (-12°C)
Visibility	NA
Last update	31 Dec 11:06 PM 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
Tonight
Low: 21 °F
Mostly Cloudy
New Year's Day
High: 28 °F
Mostly Cloudy
then Slight
Chance Snow
Thursday Night
Low: 25 °F
Chance Snow
Friday
High: 26 °F
Chance Snow
Friday Night
Low: 26 °F
Chance Snow
Saturday
High: 31 °F
Snow Likely
Saturday Night
Low: 29 °F
Snow Likely
Sunday
High: 31 °F
Chance Snow

Detailed Forecast

Tonight

Mostly cloudy, with a low around 21. South wind around 6 mph.

New Year's Day

A 20 percent chance of snow after 4pm. Cloudy, with a high near 28. Northwest wind around 6 mph becoming calm in the morning.

Thursday Night

A 30 percent chance of snow, mainly after 7pm. Cloudy, with a low around 25. Calm wind. New snow accumulation of less than a half inch possible.

Friday

A 30 percent chance of snow. Mostly cloudy, with a high near 26. Calm wind becoming south around 5 mph in the afternoon. New snow accumulation of less than a half inch possible.

Friday Night

A 50 percent chance of snow. Cloudy, with a low around 26. Southeast wind around 5 mph becoming northwest in the evening. New snow accumulation of less than a half inch possible.

Saturday

Snow likely, mainly before 4pm. Cloudy, with a high near 31. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Saturday Night

Snow likely, mainly after 10pm. Mostly cloudy, with a low around 29. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Sunday

A 50 percent chance of snow. Mostly cloudy, with a high near 31.

Sunday Night

A 30 percent chance of snow. Mostly cloudy, with a low around 26.

Monday

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

Monday Night

Mostly cloudy, with a low around 24.

Tuesday

A 20 percent chance of snow. Partly sunny, with a high near 29.

Tuesday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 25.