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.

11°F

-12°C

Humidity	88%
Wind Speed	NNW 3 MPH
Barometer	NA
Dewpoint	8°F (-13°C)
Visibility	NA
Last update	01 Jan 01:06 AM PST

More Information:

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

Extended Forecast for

11 Miles SSW 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
New Year's Day
High: 31 °F
Slight Chance
Snow
Thursday Night
Low: 27 °F
Chance Snow
Friday
High: 30 °F
Chance Snow
Friday Night
Low: 30 °F
Chance Snow
then Wintry
Mix Likely
Saturday
High: 35 °F
Rain/Snow
then Rain
Saturday Night
Low: 31 °F
Rain Likely
Sunday
High: 37 °F
Rain Likely

Detailed Forecast

Overnight

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

New Year's Day

A 20 percent chance of snow after 10am. Mostly cloudy, with a high near 31. Calm wind.

Thursday Night

A 50 percent chance of snow. Cloudy, with a low around 27. Calm wind. New snow accumulation of less than a half inch possible.

Friday

A 40 percent chance of snow. Mostly cloudy, with a high near 30. Calm wind. New snow accumulation of less than a half inch possible.

Friday Night

A chance of snow before 1am, then snow likely, possibly mixed with freezing rain. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday

Snow likely before 10am, then rain. High near 35. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Saturday Night

Rain likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%.

Sunday

Rain likely, mainly before 10am. Mostly cloudy, with a high near 37. Chance of precipitation is 60%.

Sunday Night

A chance of rain and snow, mainly before 4am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

Monday

A chance of rain and snow, mainly between 10am and 4pm. Partly sunny, with a high near 37. Chance of precipitation is 30%.

Monday Night

A slight chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 20%.