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

DRY CRK (DCCW1)

Lat: 45.94361°NLon: 121.9875°WElev: 2697.0ft.

35°F

2°C

Humidity	100%
Wind Speed	ENE 2 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Last update	25 Dec 08:25 AM PST

More Information:

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

Extended Forecast for

9 Miles NNE Mount St Helens 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: 33 °F
Snow and
Breezy then
Chance Snow
Tonight
Low: 26 °F
Chance Snow
then Snow
Showers
Likely
Friday
High: 28 °F⇓
Heavy Snow
and Breezy
Friday Night
Low: 23 °F
Snow Showers
and Windy
Saturday
High: 24 °F
Chance Snow
Showers
Saturday Night
Low: 19 °F
Mostly Cloudy
Sunday
High: 30 °F
Partly Sunny
Sunday Night
Low: 23 °F
Mostly Cloudy
Monday
High: 34 °F
Mostly Cloudy

Detailed Forecast

Christmas Day

Snow, mainly before 2pm. High near 33. Breezy, with a south wind 9 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than one inch possible.

Tonight

A chance of snow between 2am and 4am, then snow showers likely after 4am. Mostly cloudy, with a low around 26. South wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Friday

Snow showers. The snow could be heavy at times. Temperature falling to around 24 by 4pm. Breezy, with a west southwest wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Friday Night

Snow showers. Low around 23. Windy, with a west wind around 22 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Saturday

A 50 percent chance of snow showers. Mostly cloudy, with a high near 24. West northwest wind 7 to 14 mph, with gusts as high as 23 mph. New snow accumulation of less than one inch possible.

Saturday Night

Mostly cloudy, with a low around 19.

Sunday

Partly sunny, with a high near 30.

Sunday Night

Mostly cloudy, with a low around 23.

Monday

Mostly cloudy, with a high near 34.

Monday Night

Mostly cloudy, with a low around 27.

Tuesday

Mostly cloudy, with a high near 37.