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

CANYON CREEK (CYFW1)

Lat: 45.92944°NLon: 122.20278°WElev: 2592.0ft.

37°F

3°C

Humidity	100%
Wind Speed	SE 5 MPH
Barometer	NA
Dewpoint	37°F (3°C)
Visibility	NA
Wind Chill	33°F (1°C)
Last update	25 Dec 08:52 PM PST

More Information:

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

Extended Forecast for

4 Miles WSW 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

Tonight
Low: 32 °F
Slight Chance
Rain/Snow
then Chance
Rain/Snow
Friday
High: 34 °F⇓
Snow
Friday Night
Low: 28 °F
Snow
Saturday
High: 31 °F
Snow Likely
then Chance
Snow Showers
Saturday Night
Low: 25 °F
Mostly Cloudy
Sunday
High: 35 °F
Partly Sunny
Sunday Night
Low: 28 °F
Mostly Cloudy
Monday
High: 39 °F
Mostly Cloudy
Monday Night
Low: 30 °F
Mostly Cloudy

Detailed Forecast

Tonight

A chance of rain and snow showers, mainly after 1am. Snow level 3300 feet. Mostly cloudy, with a low around 32. Southeast wind around 7 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than one inch possible.

Friday

Snow. Temperature falling to around 29 by 5pm. West wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 6 inches possible.

Friday Night

Snow. Low around 28. West wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Saturday

Snow likely before 10am, then a chance of snow showers after 10am. Mostly cloudy, with a high near 31. West wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Saturday Night

Mostly cloudy, with a low around 25. Calm wind.

Sunday

Partly sunny, with a high near 35.

Sunday Night

Mostly cloudy, with a low around 28.

Monday

Mostly cloudy, with a high near 39.

Monday Night

Mostly cloudy, with a low around 30.

Tuesday

Mostly cloudy, with a high near 42.