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.

Mist

29°F

-2°C

Humidity	100%
Wind Speed	N 3 MPH
Barometer	29.58 in (1001.69 mb)
Dewpoint	29°F (-2°C)
Visibility	5.00 mi
Last update	25 Dec 12:56 AM PST

More Information:

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

Extended Forecast for

3 Miles SSW Snoqualmie Pass WA

Overnight
Low: 28 °F
Chance Snow
Christmas Day
High: 33 °F
Rain/Snow
Thursday Night
Low: 28 °F
Rain/Snow
Likely then
Chance Snow
Friday
High: 31 °F
Heavy Snow
Friday Night
Low: 23 °F
Heavy Snow
then Snow
Likely
Saturday
High: 25 °F
Chance Snow
then Partly
Sunny
Saturday Night
Low: 20 °F
Patchy Fog
Sunday
High: 30 °F
Partly Sunny
then Patchy
Fog
Sunday Night
Low: 25 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 30 percent chance of snow after 4am. Mostly cloudy, with a low around 28. East wind around 11 mph, with gusts as high as 20 mph.

Christmas Day

A chance of snow before 10am, then snow, possibly mixed with rain. High near 33. Southeast wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Thursday Night

A chance of rain and snow before 7pm, then snow likely. Mostly cloudy, with a low around 28. Southeast wind around 6 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Friday

Snow, mainly after 7am. The snow could be heavy at times. High near 31. Southeast wind 6 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Friday Night

Snow, mainly before 4am. The snow could be heavy at times. Low around 23. West wind 13 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Saturday

A 30 percent chance of snow before 10am. Mostly cloudy, with a high near 25.

Saturday Night

Patchy fog. Otherwise, mostly cloudy, with a low around 20.

Sunday

Patchy fog after 1pm. Otherwise, partly sunny, with a high near 30.

Sunday Night

Mostly cloudy, with a low around 25.

Monday

Mostly cloudy, with a high near 35.

Monday Night

Mostly cloudy, with a low around 29.