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 >

Current conditions at

Stampede Pass (KSMP)

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

light frz rain

31°F

-1°C

Humidity	96%
Wind Speed	N 0 MPH
Barometer	29.61 in (1002.71 mb)
Dewpoint	30°F (-1°C)
Visibility	10.00 mi
Last update	24 Dec 10:38 PM PST

More Information:

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

Extended Forecast for

7 Miles ENE Snoqualmie Pass WA

Tonight
Low: 24 °F
Mostly Cloudy
Christmas Day
High: 32 °F
Snow
Thursday Night
Low: 25 °F
Snow
Friday
High: 29 °F
Heavy Snow
Friday Night
Low: 20 °F
Heavy Snow
then Snow
Likely
Saturday
High: 24 °F
Slight Chance
Snow then
Partly Sunny
Saturday Night
Low: 17 °F
Mostly Cloudy
Sunday
High: 29 °F
Partly Sunny
Sunday Night
Low: 21 °F
Mostly Cloudy

Detailed Forecast

Tonight

Mostly cloudy, with a low around 24. Northeast wind 3 to 8 mph.

Christmas Day

Snow, mainly after 10am. High near 32. Southeast wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

Thursday Night

Snow, mainly before 10pm. Low around 25. East wind around 7 mph becoming south after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Friday

Snow. The snow could be heavy at times. High near 29. West wind 7 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

Friday Night

Snow, mainly before 4am. The snow could be heavy at times. Low around 20. West wind 15 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

Saturday

A 20 percent chance of snow before 10am. Mostly cloudy, with a high near 24.

Saturday Night

Mostly cloudy, with a low around 17.

Sunday

Partly sunny, with a high near 29.

Sunday Night

Mostly cloudy, with a low around 21.

Monday

Mostly cloudy, with a high near 32.

Monday Night

Mostly cloudy, with a low around 25.