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

Winter Weather Advisory until December 24, 04:00 PM PST

Current conditions at

STEHEKIN-AIRSTRIP (STRW1)

Lat: 48.34694°NLon: 120.72028°WElev: 1230.0ft.

32°F

0°C

Humidity	99%
Wind Speed	N 0 MPH
Barometer	NA
Dewpoint	32°F (0°C)
Visibility	NA
Last update	24 Dec 04:01 AM PST

More Information:

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

Extended Forecast for

12 Miles WNW Mazama WA

Winter Weather Advisory December 24, 04:23am until December 24, 04:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 24, 04:23am until December 24, 04:00pm
NOW until 4:00pm Wed
Winter Weather Advisory
Overnight
Low: 24 °F
Heavy Snow
Wednesday
High: 28 °F
Heavy Snow
and Breezy
Wednesday Night
Low: 16 °F
Chance Snow
then Partly
Cloudy
Christmas Day
High: 24 °F
Snow
Thursday Night
Low: 21 °F
Snow then
Snow Likely
Friday
High: 24 °F
Snow
Friday Night
Low: 10 °F
Chance Snow
then Slight
Chance Snow
Saturday
High: 18 °F
Partly Sunny

Detailed Forecast

Overnight

Snow. The snow could be heavy at times. Steady temperature around 24. East wind 14 to 16 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 2 to 4 inches possible.

Wednesday

Snow, mainly before 4pm. The snow could be heavy at times. High near 28. Breezy, with an east wind 16 to 21 mph becoming west 10 to 15 mph in the morning. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Wednesday Night

A 30 percent chance of snow before 7pm. Partly cloudy, with a low around 16. West wind 10 to 14 mph becoming east after midnight. Winds could gust as high as 23 mph. New snow accumulation of less than one inch possible.

Christmas Day

Snow, mainly after 10am. High near 24. Northeast wind 8 to 10 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Thursday Night

Snow. Low around 21. West wind around 11 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow, mainly before 4pm. High near 24. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday Night

A 50 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 10. New snow accumulation of less than a half inch possible.

Saturday

Partly sunny, with a high near 18.

Saturday Night

A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 11.