Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. 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.

18°F

-8°C

Humidity	81%
Wind Speed	N 2 MPH
Barometer	NA
Dewpoint	13°F (-11°C)
Visibility	NA
Last update	30 Dec 10:06 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
Today
High: 30 °F
Mostly Sunny
Tonight
Low: 23 °F
Mostly Cloudy
Wednesday
High: 33 °F
Mostly Sunny
Wednesday Night
Low: 20 °F
Partly Cloudy
New Year's Day
High: 30 °F
Partly Sunny
Thursday Night
Low: 23 °F
Chance Snow
Friday
High: 29 °F
Snow Likely
Friday Night
Low: 26 °F
Snow Likely

Detailed Forecast

Today

Mostly sunny, with a high near 30. Light north wind.

Tonight

Mostly cloudy, with a low around 23. Light northwest wind.

Wednesday

Mostly sunny, with a high near 33. Calm wind.

Wednesday Night

Partly cloudy, with a low around 20. Calm wind.

New Year's Day

Partly sunny, with a high near 30. Calm wind.

Thursday Night

A 30 percent chance of snow. Mostly cloudy, with a low around 23. New snow accumulation of less than one inch possible.

Friday

Snow likely, mainly after 10am. Mostly cloudy, with a high near 29. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Friday Night

Snow likely, mainly before 4am. Mostly cloudy, with a low around 26. Chance of precipitation is 70%.

Saturday

Snow likely, mainly after 10am. Mostly cloudy, with a high near 32. Chance of precipitation is 60%.

Saturday Night

A 40 percent chance of snow, mainly before 4am. Mostly cloudy, with a low around 22.

Sunday

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

Sunday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 22.

Monday

A 40 percent chance of snow. Partly sunny, with a high near 31.