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

2 Miles ENE Snoqualmie Pass WA

Tonight
Low: 27 °F⇑
Snow Likely
and Patchy
Blowing Snow
Wednesday
High: 35 °F
Rain/Snow and
Areas Blowing
Snow
Wednesday Night
Low: 27 °F
Chance Snow
Christmas Day
High: 34 °F
Snow
Thursday Night
Low: 27 °F
Snow
Friday
High: 30 °F
Snow
Friday Night
Low: 23 °F
Snow Likely
then Chance
Snow
Saturday
High: 28 °F
Slight Chance
Snow then
Mostly Cloudy
Saturday Night
Low: 22 °F
Mostly Cloudy

Detailed Forecast

Tonight

Snow likely, mainly after 10pm. Patchy blowing snow after 1am. Cloudy, with a temperature rising to around 32 by 4am. Breezy, with an east wind 14 to 22 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

Wednesday

Rain, possibly mixed with snow. Areas of blowing snow before 10am. High near 35. Breezy, with a south wind 22 to 26 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Wednesday Night

A chance of snow before 10pm, then a chance of snow after 4am. Mostly cloudy, with a low around 27. Southwest wind 7 to 15 mph becoming east after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

Christmas Day

Snow, mainly after 10am. High near 34. East wind 9 to 14 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Thursday Night

Snow. Low around 27. Southeast wind around 7 mph becoming west after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow. High near 30. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 23. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Saturday

A 20 percent chance of snow before 10am. Mostly cloudy, with a high near 28.

Saturday Night

Mostly cloudy, with a low around 22.

Sunday

Mostly cloudy, with a high near 33.

Sunday Night

Mostly cloudy, with a low around 26.

Monday

Mostly cloudy, with a high near 37.

Monday Night

A slight chance of rain and snow. Mostly cloudy, with a low around 30.