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.

Mist

30°F

-1°C

Humidity	95%
Wind Speed	N 0 MPH
Barometer	29.59 in (1002.03 mb)
Dewpoint	29°F (-2°C)
Visibility	10.00 mi
Last update	25 Dec 11:56 PM PST

More Information:

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

Extended Forecast for

6 Miles NNW Easton WA

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

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 30 °F
Slight Chance
Snow and
Patchy
Freezing Fog
Friday
High: 38 °F
Heavy Snow
and Patchy
Freezing Fog
Friday Night
Low: 26 °F
Heavy Snow
Saturday
High: 32 °F
Slight Chance
Snow then
Partly Sunny
Saturday Night
Low: 21 °F
Mostly Cloudy
Sunday
High: 36 °F
Partly Sunny
Sunday Night
Low: 25 °F
Mostly Cloudy
Monday
High: 39 °F
Mostly Cloudy
Monday Night
Low: 28 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 20 percent chance of snow after 1am. Patchy freezing fog after 4am. Mostly cloudy, with a low around 30. Calm wind.

Friday

Snow, mainly after 7am. The snow could be heavy at times. Patchy freezing fog before 7am. High near 38. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Friday Night

Snow, mainly before 4am. The snow could be heavy at times. Low around 26. West wind 15 to 17 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Saturday

A 20 percent chance of snow before 10am. Partly sunny, with a high near 32. West wind around 6 mph, with gusts as high as 18 mph.

Saturday Night

Mostly cloudy, with a low around 21. Calm wind.

Sunday

Partly sunny, with a high near 36.

Sunday Night

Mostly cloudy, with a low around 25.

Monday

Mostly cloudy, with a high near 39.

Monday Night

Mostly cloudy, with a low around 28.