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

2 Miles WNW Winthrop 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: 31 °F
Rain
Tonight
Low: 23 °F
Chance Rain
then Patchy
Freezing Fog
Christmas Day
High: 30 °F
Rain/Snow
Likely and
Patchy
Freezing Fog
Thursday Night
Low: 24 °F
Rain Likely
then Chance
Rain/Snow
Friday
High: 30 °F
Rain/Snow
Likely
Friday Night
Low: 16 °F
Chance Snow
then Partly
Cloudy
Saturday
High: 31 °F
Mostly Sunny
Saturday Night
Low: 18 °F
Mostly Cloudy

Detailed Forecast

This Afternoon

Rain, mainly before 1pm. High near 31. North wind 5 to 7 mph becoming southwest. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

A 30 percent chance of rain before 7pm. Patchy freezing fog between 4am and 5am. Partly cloudy, with a low around 23. Calm wind. New precipitation amounts of less than a tenth of an inch possible.

Christmas Day

Rain and snow likely before 2pm, then snow likely between 2pm and 4pm, then rain and snow likely after 4pm. Patchy freezing fog before 11am, then patchy freezing fog after 2pm. Mostly cloudy, with a high near 30. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Thursday Night

Rain likely before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 24. Calm wind. Chance of precipitation is 70%. Little or no snow accumulation expected.

Friday

Rain and snow likely, becoming all snow after 1pm. Partly sunny, with a high near 30. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Friday Night

A 30 percent chance of snow before 10pm. Partly cloudy, with a low around 16. New snow accumulation of less than a half inch possible.

Saturday

Mostly sunny, with a high near 31.

Saturday Night

Mostly cloudy, with a low around 18.

Sunday

Partly sunny, with a high near 31.

Sunday Night

Mostly cloudy, with a low around 22.

Monday

Mostly cloudy, with a high near 35.