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 in effect from December 26, 04:00 AM PST until December 27, 04:00 PM PST

Current conditions at

CASTLE ROCK (TR950)

Lat: 46.27139°NLon: 122.89194°WElev: 213.0ft.

43°F

6°C

Humidity	100%
Wind Speed	ESE 2 MPH
Barometer	NA
Dewpoint	43°F (6°C)
Visibility	NA
Last update	25 Dec 12:09 PM PST

More Information:

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

Extended Forecast for

14 Miles SSW Mossyrock WA

Winter Weather Advisory December 26, 04:00am until December 27, 04:00pm

Click here for hazard details and duration

Winter Weather Advisory

Christmas Day
High: 46 °F
Chance Rain
Tonight
Low: 37 °F
Chance Rain
then Showers
Likely
Friday
High: 39 °F⇓
Rain/Snow
Friday Night
Low: 31 °F
Snow Showers
then Snow
Showers
Likely
Saturday
High: 35 °F
Chance Snow
Showers and
Patchy Fog
Saturday Night
Low: 29 °F
Mostly Cloudy
Sunday
High: 39 °F
Mostly Cloudy
Sunday Night
Low: 31 °F
Mostly Cloudy
Monday
High: 43 °F
Mostly Cloudy

Detailed Forecast

Christmas Day

A 40 percent chance of rain. Partly sunny, with a high near 46. South southeast wind around 6 mph.

Tonight

A chance of rain between 1am and 4am, then showers likely after 4am. Snow level 3400 feet. Mostly cloudy, with a low around 37. South southeast wind 6 to 8 mph. Chance of precipitation is 60%.

Friday

Rain showers likely before 10am, then rain and snow showers. Snow level 3300 feet lowering to 2200 feet in the afternoon . Temperature falling to around 34 by 4pm. Southwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Friday Night

Snow showers, mainly before 4am. Low around 31. West southwest wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Saturday

A 40 percent chance of snow showers, mainly before 10am. Patchy fog between 10am and 11am. Otherwise, mostly cloudy, with a high near 35. Light west wind. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, with a low around 29.

Sunday

Mostly cloudy, with a high near 39.

Sunday Night

Mostly cloudy, with a low around 31.

Monday

Mostly cloudy, with a high near 43.

Monday Night

Mostly cloudy, with a low around 34.

Tuesday

Mostly cloudy, with a high near 44.