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	E 3 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Last update	25 Dec 09:25 AM PST

More Information:

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

Extended Forecast for

9 Miles NE 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: 38 °F
Rain then
Chance
Rain/Snow
Tonight
Low: 29 °F
Chance
Rain/Snow
then Snow
Showers
Likely
Friday
High: 33 °F
Heavy Snow
Friday Night
Low: 25 °F
Snow Showers
and Breezy
Saturday
High: 29 °F
Chance Snow
Showers
Saturday Night
Low: 22 °F
Mostly Cloudy
Sunday
High: 35 °F
Partly Sunny
Sunday Night
Low: 25 °F
Mostly Cloudy
Monday
High: 39 °F
Mostly Cloudy

Detailed Forecast

Christmas Day

Rain before 1pm, then a chance of rain and snow. Snow level 4300 feet. High near 38. South southeast wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Tonight

A chance of rain and snow before 10pm, then snow likely after 2am. Mostly cloudy, with a low around 29. South wind around 7 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. High near 33. West southwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Friday Night

Snow showers. Low around 25. Breezy, with a west wind 13 to 15 mph, with gusts as high as 30 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 29. West northwest wind 6 to 9 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, with a low around 22.

Sunday

Partly sunny, with a high near 35.

Sunday Night

Mostly cloudy, with a low around 25.

Monday

Mostly cloudy, with a high near 39.

Monday Night

Mostly cloudy, with a low around 29.

Tuesday

Mostly cloudy, with a high near 41.