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.

28°F

-2°C

Humidity	NA
Wind Speed	SSE 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

6 Miles NNE Stevens Pass WA

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

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 28 °F
Slight Chance
Snow
Friday
High: 32 °F⇓
Heavy Snow
Friday Night
Low: 18 °F
Heavy Snow
Saturday
High: 23 °F
Chance Snow
then Partly
Sunny
Saturday Night
Low: 15 °F
Mostly Cloudy
Sunday
High: 29 °F
Mostly Sunny
Sunday Night
Low: 17 °F
Mostly Cloudy
Monday
High: 34 °F
Mostly Cloudy
Monday Night
Low: 24 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 10 percent chance of snow before 4am. Mostly cloudy, with a low around 28. Calm wind.

Friday

Snow, mainly after 10am. The snow could be heavy at times. Temperature rising to near 32 by 10am, then falling to around 26 during the remainder of the day. Southwest wind 3 to 8 mph. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Friday Night

Snow, mainly before 1am. The snow could be heavy at times. Low around 18. West wind 8 to 10 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Saturday

A 40 percent chance of snow before 10am. Partly sunny, with a high near 23. West wind around 7 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 15. Light west wind.

Sunday

Mostly sunny, with a high near 29.

Sunday Night

Mostly cloudy, with a low around 17.

Monday

Mostly cloudy, with a high near 34.

Monday Night

Mostly cloudy, with a low around 24.

Tuesday

Mostly cloudy, with a high near 39.