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.

38°F

3°C

Humidity	94%
Wind Speed	SSE 4 MPH
Barometer	NA
Dewpoint	36°F (2°C)
Visibility	NA
Wind Chill	35°F (2°C)
Last update	25 Dec 07:52 PM PST

More Information:

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

Extended Forecast for

6 Miles NNW 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: 34 °F
Slight Chance
Rain/Snow
then Chance
Rain/Snow
Friday
High: 36 °F
Rain/Snow
then Snow
Friday Night
Low: 30 °F
Snow and
Breezy
Saturday
High: 32 °F
Snow Likely
then Chance
Snow Showers
Saturday Night
Low: 23 °F
Mostly Cloudy
Sunday
High: 36 °F
Partly Sunny
Sunday Night
Low: 27 °F
Mostly Cloudy
Monday
High: 41 °F
Mostly Cloudy
Monday Night
Low: 30 °F
Mostly Cloudy

Detailed Forecast

Tonight

A chance of rain and snow showers, mainly after 2am. Snow level 3300 feet. Mostly cloudy, with a steady temperature around 34. Southeast wind 6 to 8 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.

Friday

A chance of rain and snow showers before 7am, then snow. High near 36. Southwest wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Friday Night

Snow. Steady temperature around 30. Breezy, with a west wind around 15 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Saturday

Snow likely before 10am, then a chance of snow showers after 10am. Mostly cloudy, with a high near 32. West northwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Saturday Night

Mostly cloudy, with a low around 23. Calm wind.

Sunday

Partly sunny, with a high near 36.

Sunday Night

Mostly cloudy, with a low around 27.

Monday

Mostly cloudy, with a high near 41.

Monday Night

Mostly cloudy, with a low around 30.

Tuesday

Mostly cloudy, with a high near 44.