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

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
Tonight
Low: 21 °F
Mostly Cloudy
New Year's Day
High: 34 °F
Mostly Cloudy
then Slight
Chance Snow
Thursday Night
Low: 26 °F
Chance Snow
Friday
High: 32 °F
Snow Likely
Friday Night
Low: 31 °F
Snow Likely
Saturday
High: 33 °F
Rain/Snow
then Rain
Saturday Night
Low: 32 °F
Rain Likely
then
Rain/Snow
Likely
Sunday
High: 37 °F
Rain/Snow
Likely

Detailed Forecast

Tonight

Mostly cloudy, with a low around 21. Calm wind.

New Year's Day

A 20 percent chance of snow after 4pm. Mostly cloudy, with a high near 34. Calm wind.

Thursday Night

A 50 percent chance of snow, mainly after 7pm. Mostly cloudy, with a low around 26. Calm wind. New snow accumulation of less than a half inch possible.

Friday

Snow likely. Mostly cloudy, with a high near 32. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Friday Night

Snow likely. Mostly cloudy, with a low around 31. Calm wind. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Saturday

Snow likely before 10am, then rain. High near 33. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Saturday Night

Rain likely before 1am, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 32. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Sunday

Snow likely, possibly mixed with rain. Mostly cloudy, with a high near 37. Chance of precipitation is 70%.

Sunday Night

A chance of rain and snow before 10pm, then a chance of snow. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.

Monday

A 40 percent chance of snow. Partly sunny, with a high near 36.

Monday Night

A 30 percent chance of snow. Mostly cloudy, with a low around 25.

Tuesday

A 40 percent chance of snow. Partly sunny, with a high near 35.

Tuesday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 26.