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 26, 10:00 PM PST

Current conditions at

Stevens Pass - Tye Mill (STS54)

Lat: 47.73163°NLon: 121.0853°WElev: 5180.0ft.

30°F

-1°C

Humidity	NA
Wind Speed	E 0 MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

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

Extended Forecast for

8 Miles SE Trinity WA

Winter Weather Advisory December 26, 04:00am until December 26, 10:00pm

Click here for hazard details and duration

Winter Weather Advisory

Christmas Day
High: 28 °F
Snow
Tonight
Low: 21 °F
Snow Likely
then Slight
Chance Snow
Friday
High: 25 °F⇓
Snow
Friday Night
Low: 12 °F
Snow then
Chance Snow
Saturday
High: 17 °F
Mostly Sunny
Saturday Night
Low: 9 °F
Mostly Cloudy
Sunday
High: 22 °F
Mostly Sunny
Sunday Night
Low: 14 °F
Mostly Cloudy
Monday
High: 27 °F
Mostly Cloudy

Detailed Forecast

Christmas Day

Snow. High near 28. Light south wind. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 3 inches possible.

Tonight

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 21. Southwest wind around 5 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Friday

Snow after 7am. Temperature rising to near 25 by noon, then falling to around 19 during the remainder of the day. South wind 5 to 11 mph becoming west in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Friday Night

Snow, mainly before 10pm. Low around 12. Wind chill values as low as -1. West wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Saturday

Mostly sunny, with a high near 17. Northwest wind 7 to 9 mph.

Saturday Night

Mostly cloudy, with a low around 9.

Sunday

Mostly sunny, with a high near 22.

Sunday Night

Mostly cloudy, with a low around 14.

Monday

Mostly cloudy, with a high near 27.

Monday Night

Mostly cloudy, with a low around 22.