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.

unknown precip

32°F

0°C

Humidity	100%
Wind Speed	W 5 MPH
Barometer	29.59 in (1002.03 mb)
Dewpoint	32°F (0°C)
Visibility	7.00 mi
Wind Chill	27°F (-3°C)
Last update	24 Dec 04:56 PM PST

More Information:

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

Extended Forecast for

3 Miles ESE Snoqualmie Pass WA

This Afternoon
High: 32 °F
Slight Chance
Snow
Tonight
Low: 25 °F
Slight Chance
Snow then
Mostly Cloudy
Christmas Day
High: 32 °F
Snow
Thursday Night
Low: 25 °F
Snow
Friday
High: 29 °F
Heavy Snow
Friday Night
Low: 21 °F
Breezy. Heavy
Snow then
Snow Likely
Saturday
High: 25 °F
Slight Chance
Snow then
Mostly Cloudy
Saturday Night
Low: 17 °F
Mostly Cloudy
Sunday
High: 30 °F
Mostly Cloudy

Detailed Forecast

This Afternoon

A 20 percent chance of snow. Mostly cloudy, with a steady temperature around 32. West wind around 13 mph, with gusts as high as 20 mph.

Tonight

A 10 percent chance of snow before 7pm. Mostly cloudy, with a low around 25. West wind 5 to 11 mph becoming east after midnight. Winds could gust as high as 22 mph.

Christmas Day

Snow, mainly after 10am. High near 32. East wind 10 to 16 mph, with gusts as high as 21 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. 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 9 to 15 mph, with gusts as high as 24 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 21. Breezy. 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 25.

Saturday Night

Mostly cloudy, with a low around 17.

Sunday

Mostly cloudy, with a high near 30.

Sunday Night

Mostly cloudy, with a low around 22.

Monday

Mostly cloudy, with a high near 32.

Monday Night

Mostly cloudy, with a low around 25.