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

BUCK CREEK (BKRW1)

Lat: 46.05667°NLon: 121.53861°WElev: 2708.0ft.

32°F

0°C

Humidity	99%
Wind Speed	NNW 1 MPH
Barometer	NA
Dewpoint	32°F (0°C)
Visibility	NA
Last update	26 Dec 03:25 AM PST

More Information:

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

Extended Forecast for

16 Miles E Mount St Helens WA

Winter Weather Advisory until December 27, 04:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory until December 27, 04:00pm
NOW until 4:00pm Sat
Winter Weather Advisory
Overnight
Low: 32 °F
Rain/Snow
Likely
Friday
High: 37 °F
Rain/Snow
Friday Night
Low: 28 °F
Snow Showers
Saturday
High: 33 °F
Snow Showers
Likely then
Chance Snow
Showers
Saturday Night
Low: 23 °F
Frost then
Mostly Cloudy
Sunday
High: 37 °F
Frost
Sunday Night
Low: 26 °F
Frost
Monday
High: 40 °F
Frost then
Partly Sunny

Detailed Forecast

Overnight

Rain likely, possibly mixed with snow showers. Snow level 3200 feet. Cloudy, with a low around 32. Calm wind. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

Friday

Rain and snow showers, becoming all snow after 3pm. Snow level 2800 feet lowering to 2100 feet in the afternoon . High near 37. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Friday Night

Snow showers, mainly before 2am. Low around 28. West wind around 10 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Saturday

Snow showers likely, mainly before 10am. Widespread frost after 4pm. Otherwise, partly sunny, with a high near 33. West wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Saturday Night

Widespread frost before 10pm. Otherwise, mostly cloudy, with a low around 23. Calm wind.

Sunday

Widespread frost, mainly before 1pm. Otherwise, partly sunny, with a high near 37.

Sunday Night

Widespread frost before 5am. Otherwise, mostly cloudy, with a low around 26.

Monday

Widespread frost before 7am. Otherwise, partly sunny, with a high near 40.

Monday Night

Mostly cloudy, with a low around 29.

Tuesday

Partly sunny, with a high near 43.