Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Winter Weather Advisory until December 24, 04:00 PM PST

Current conditions at

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

32°F

0°C

Humidity	96%
Wind Speed	N 2 MPH
Barometer	NA
Dewpoint	31°F (-1°C)
Visibility	NA
Last update	24 Dec 11:06 AM PST

More Information:

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

Extended Forecast for

9 Miles SE Twisp WA

Winter Weather Advisory December 24, 12:09pm until December 24, 04:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 24, 12:09pm until December 24, 04:00pm
NOW until 4:00pm Wed
Winter Weather Advisory
This Afternoon
High: 29 °F
Rain/Snow
Tonight
Low: 25 °F
Partly Cloudy
Christmas Day
High: 27 °F
Snow Likely
Thursday Night
Low: 26 °F
Chance Snow
then Slight
Chance Snow
Friday
High: 26 °F
Chance Snow
Friday Night
Low: 16 °F
Partly Cloudy
Saturday
High: 24 °F
Mostly Sunny
Saturday Night
Low: 17 °F
Mostly Cloudy

Detailed Forecast

This Afternoon

Rain, possibly mixed with snow, mainly before 1pm. High near 29. Northwest wind 7 to 9 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.

Tonight

Partly cloudy, with a low around 25. West wind around 8 mph becoming northeast in the evening.

Christmas Day

Snow likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 27. North wind 3 to 7 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Thursday Night

A 50 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 26. West wind around 6 mph. New snow accumulation of less than a half inch possible.

Friday

A 50 percent chance of snow, mainly after 10am. Partly sunny, with a high near 26. Southwest wind 7 to 9 mph. New snow accumulation of less than a half inch possible.

Friday Night

Partly cloudy, with a low around 16.

Saturday

Mostly sunny, with a high near 24.

Saturday Night

Mostly cloudy, with a low around 17.

Sunday

Mostly cloudy, with a high near 24.

Sunday Night

Mostly cloudy, with a low around 20.

Monday

Mostly cloudy, with a high near 27.