Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. 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	86%
Wind Speed	WNW 1 MPH
Barometer	NA
Dewpoint	8°F (-13°C)
Visibility	NA
Last update	01 Jan 07:06 AM PST

More Information:

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

Extended Forecast for

16 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
New Year's Day
High: 28 °F
Chance Snow
Tonight
Low: 25 °F⇑
Snow Likely
Friday
High: 26 °F
Snow Likely
Friday Night
Low: 23 °F
Snow Likely
Saturday
High: 29 °F
Snow
Saturday Night
Low: 22 °F
Snow
Sunday
High: 23 °F
Snow
Sunday Night
Low: 17 °F
Chance Snow

Detailed Forecast

New Year's Day

A 30 percent chance of snow, mainly after 1pm. Mostly cloudy, with a high near 28. West wind 3 to 6 mph. Total daytime snow accumulation of less than a half inch possible.

Tonight

Snow likely, mainly after 4am. Cloudy, with a temperature rising to around 28 by 5am. Southwest wind around 6 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Friday

Snow likely, mainly before 10am. Mostly cloudy, with a high near 26. West wind around 8 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Friday Night

Snow likely, mainly after 10pm. Cloudy, with a low around 23. West wind around 8 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Saturday

Snow. High near 29. West wind 8 to 10 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

Snow. Low around 22. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Sunday

Snow. High near 23. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Sunday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 17.

Monday

A 40 percent chance of snow. Partly sunny, with a high near 22.

Monday Night

A 20 percent chance of snow. Mostly cloudy, with a low around 16.