Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Special Weather Statement

Current conditions at

Stampede Pass (KSMP)

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

Overcast

28°F

-2°C

Humidity	100%
Wind Speed	N 0 MPH
Barometer	29.66 in (1004.4 mb)
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Last update	23 Dec 07:56 PM PST

More Information:

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

Extended Forecast for

17 Miles ENE Snoqualmie Pass WA

Tonight
Low: 23 °F
Snow Likely
and Patchy
Blowing Snow
Wednesday
High: 34 °F
Snow and
Areas Blowing
Snow
Wednesday Night
Low: 22 °F
Chance Snow
Christmas Day
High: 31 °F
Snow
Thursday Night
Low: 24 °F
Snow
Friday
High: 28 °F
Snow
Friday Night
Low: 19 °F
Breezy. Snow
Likely then
Chance Snow
Saturday
High: 25 °F
Mostly Cloudy
Saturday Night
Low: 18 °F
Mostly Cloudy

Detailed Forecast

Tonight

Snow likely, mainly after 10pm. Patchy blowing snow after 1am. Mostly cloudy, with a low around 23. Southeast wind 10 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

Wednesday

Snow, mainly before 4pm. Areas of blowing snow. High near 34. Breezy, with a south wind 21 to 23 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Wednesday Night

A slight chance of snow before 10pm, then a chance of snow after 4am. Partly cloudy, with a low around 22. West wind 9 to 14 mph becoming east after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

Christmas Day

Snow, mainly after 10am. High near 31. East wind 9 to 13 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Thursday Night

Snow. Low around 24. West wind 7 to 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Friday

Snow. High near 28. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 19. Breezy. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Saturday

Mostly cloudy, with a high near 25.

Saturday Night

Mostly cloudy, with a low around 18.

Sunday

Mostly cloudy, with a high near 31.

Sunday Night

Mostly cloudy, with a low around 22.

Monday

Mostly cloudy, with a high near 35.

Monday Night

A slight chance of snow. Mostly cloudy, with a low around 26.