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, 07:00 AM PST

Current conditions at

Stampede Pass (KSMP)

Lat: 47.27648°NLon: 121.33817°WElev: 3970.0ft.

unknown precip

31°F

-1°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	29.64 in (1003.73 mb)
Dewpoint	31°F (-1°C)
Visibility	10.00 mi
Last update	25 Dec 08:56 PM PST

More Information:

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

Extended Forecast for

14 Miles S Stevens Pass WA

Winter Weather Advisory December 26, 04:00am until December 27, 07:00am

Click here for hazard details and duration

Winter Weather Advisory

Tonight
Low: 26 °F
Chance Snow
Friday
High: 33 °F
Heavy Snow
Friday Night
Low: 19 °F
Heavy Snow
Saturday
High: 26 °F
Slight Chance
Snow then
Mostly Sunny
Saturday Night
Low: 14 °F
Mostly Cloudy
Sunday
High: 31 °F
Partly Sunny
Sunday Night
Low: 19 °F
Mostly Cloudy
Monday
High: 35 °F
Mostly Cloudy
Monday Night
Low: 24 °F
Mostly Cloudy

Detailed Forecast

Tonight

A chance of snow before 10pm, then a slight chance of snow after 1am. Mostly cloudy, with a low around 26. South wind 3 to 5 mph. Chance of precipitation is 30%.

Friday

Snow, mainly after 7am. The snow could be heavy at times. High near 33. South wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

Friday Night

Snow, mainly before 4am. The snow could be heavy at times. Low around 19. West wind around 16 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

Saturday

A 20 percent chance of snow before 10am. Partly sunny, with a high near 26. West wind around 8 mph, with gusts as high as 18 mph.

Saturday Night

Mostly cloudy, with a low around 14. Light west wind.

Sunday

Partly sunny, with a high near 31.

Sunday Night

Mostly cloudy, with a low around 19.

Monday

Mostly cloudy, with a high near 35.

Monday Night

Mostly cloudy, with a low around 24.