Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. 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.

12°F

-11°C

Humidity	90%
Wind Speed	N 2 MPH
Barometer	NA
Dewpoint	10°F (-12°C)
Visibility	NA
Last update	30 Dec 03:06 AM PST

More Information:

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

Extended Forecast for

4 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: 19 °F
Partly Cloudy
Tuesday
High: 27 °F
Partly Sunny
Tuesday Night
Low: 22 °F
Mostly Cloudy
Wednesday
High: 30 °F
Mostly Sunny
Wednesday Night
Low: 23 °F
Partly Cloudy
New Year's Day
High: 29 °F
Partly Sunny
then Slight
Chance Snow
Thursday Night
Low: 25 °F
Chance Snow
Friday
High: 31 °F
Chance Snow

Detailed Forecast

Overnight

Partly cloudy, with a low around 19. Calm wind.

Tuesday

Partly sunny, with a high near 27. Calm wind.

Tuesday Night

Mostly cloudy, with a low around 22. Light and variable wind.

Wednesday

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

Wednesday Night

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

New Year's Day

A 10 percent chance of snow after 4pm. Partly sunny, with a high near 29.

Thursday Night

A 30 percent chance of snow, mainly between 10pm and 4am. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.

Friday

A 50 percent chance of snow, mainly after 10am. Mostly cloudy, with a high near 31.

Friday Night

Snow likely. Mostly cloudy, with a low around 28. Chance of precipitation is 70%.

Saturday

A 50 percent chance of snow. Mostly cloudy, with a high near 32.

Saturday Night

A 30 percent chance of snow. Mostly cloudy, with a low around 24.

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 24.