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

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

30°F

-1°C

Humidity	100%
Wind Speed	NNW 1 MPH
Barometer	NA
Dewpoint	30°F (-1°C)
Visibility	NA
Last update	24 Dec 05:06 AM PST

More Information:

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

Extended Forecast for

10 Miles NE Mazama WA

Winter Weather Advisory December 24, 05:21am until December 24, 04:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 24, 05:21am until December 24, 04:00pm
NOW until 4:00pm Wed
Winter Weather Advisory
Overnight
Low: 27 °F
Heavy Snow
Wednesday
High: 29 °F
Heavy Snow
then
Rain/Snow
Wednesday Night
Low: 20 °F
Chance Snow
then Mostly
Clear
Christmas Day
High: 29 °F
Snow
Thursday Night
Low: 23 °F
Snow then
Chance Snow
Friday
High: 27 °F
Snow Likely
Friday Night
Low: 14 °F
Chance Snow
then Partly
Cloudy
Saturday
High: 23 °F
Mostly Sunny

Detailed Forecast

Overnight

Snow. The snow could be heavy at times. Steady temperature around 27. Northeast wind around 6 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.

Wednesday

Snow before 3pm, then snow likely, possibly mixed with rain. The snow could be heavy at times. High near 29. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Wednesday Night

A 30 percent chance of snow before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 20. Southwest wind around 6 mph becoming northwest in the evening. New snow accumulation of less than a half inch possible.

Christmas Day

Snow, mainly after 10am. High near 29. Calm wind. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Thursday Night

Snow, mainly before 10pm. Low around 23. Light west wind. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Friday

Snow likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 27. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Friday Night

A 40 percent chance of snow before 10pm. Mostly cloudy, with a low around 14. New snow accumulation of less than a half inch possible.

Saturday

Mostly sunny, with a high near 23.

Saturday Night

Mostly cloudy, with a low around 16.

Sunday

Mostly cloudy, with a high near 27.

Sunday Night

Mostly cloudy, with a low around 21.

Monday

Mostly cloudy, with a high near 32.