Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into 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	90%
Wind Speed	NW 0 MPH
Barometer	NA
Dewpoint	11°F (-12°C)
Visibility	NA
Last update	31 Dec 07:06 AM PST

More Information:

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

Extended Forecast for

5 Miles ESE Winthrop 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: 20 °F
Partly Cloudy
New Year's Day
High: 30 °F
Mostly Cloudy
then Slight
Chance Snow
Thursday Night
Low: 22 °F
Chance Snow
Friday
High: 30 °F
Chance Snow
then Chance
Rain/Snow
Friday Night
Low: 27 °F
Rain/Snow
Likely then
Rain Likely
Saturday
High: 34 °F
Rain
Saturday Night
Low: 28 °F
Rain/Snow
Likely

Detailed Forecast

Today

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

Tonight

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

New Year's Day

A 10 percent chance of snow after 4pm. Mostly cloudy, with a high near 30. Calm wind.

Thursday Night

A 30 percent chance of snow, mainly between 10pm and 4am. Mostly cloudy, with a low around 22. Calm wind. New snow accumulation of less than a half inch possible.

Friday

A chance of snow before 4pm, then a chance of rain and snow. Mostly cloudy, with a high near 30. Calm wind. Chance of precipitation is 30%. Little or no snow accumulation expected.

Friday Night

A chance of rain and snow before 7pm, then rain likely. Mostly cloudy, with a low around 27. Chance of precipitation is 60%. Little or no snow accumulation expected.

Saturday

Rain. High near 34. Chance of precipitation is 80%.

Saturday Night

Rain likely, possibly mixed with snow, mainly before 10pm. Mostly cloudy, with a low around 28. Chance of precipitation is 60%.

Sunday

A chance of rain and snow before 10am, then a chance of snow between 10am and 1pm, then a chance of rain and snow after 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 40%.

Sunday Night

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

Monday

A 20 percent chance of snow. Partly sunny, with a high near 33.

Monday Night

A 20 percent chance of snow. Partly cloudy, with a low around 22.

Tuesday

A 20 percent chance of snow. Partly sunny, with a high near 33.