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

10 Miles ESE Stevens Pass WA

Winter Weather Advisory until December 26, 10:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory until December 26, 10:00pm
NOW until 10:00pm Fri
Winter Weather Advisory
Overnight
Low: 22 °F
Mostly Cloudy
Friday
High: 23 °F⇓
Heavy Snow
and Patchy
Blowing Snow
Friday Night
Low: 11 °F
Heavy Snow
and Blowing
Snow
Saturday
High: 15 °F
Chance Snow
and Areas
Blowing Snow
then Partly
Sunny
Saturday Night
Low: 9 °F
Mostly Cloudy
Sunday
High: 21 °F
Partly Sunny
Sunday Night
Low: 13 °F
Mostly Cloudy
Monday
High: 22 °F
Mostly Cloudy

Detailed Forecast

Overnight

Mostly cloudy, with a low around 22. West wind around 10 mph.

Friday

Snow, mainly after 10am. The snow could be heavy at times. Patchy blowing snow after noon. Temperature falling to around 17 by 5pm. Wind chill values as low as -1. Breezy, with a west wind 13 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

Friday Night

Snow, mainly before 1am. The snow could be heavy at times. Widespread blowing snow, mainly before 4am. Low around 11. Wind chill values as low as -9. Windy, with a west wind 24 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 6 to 10 inches possible.

Saturday

A 40 percent chance of snow before 10am. Areas of blowing snow before 10am. Partly sunny, with a high near 15. Wind chill values as low as -9. Breezy, with a west wind 14 to 21 mph. New snow accumulation of less than one inch possible.

Saturday Night

Mostly cloudy, with a low around 9. West wind around 10 mph.

Sunday

Partly sunny, with a high near 21.

Sunday Night

Mostly cloudy, with a low around 13.

Monday

Mostly cloudy, with a high near 22.

Monday Night

Mostly cloudy, with a low around 15.

Tuesday

Mostly cloudy, with a high near 25.