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

OROVILLE (OVLW1)

Lat: 48.96311°NLon: 119.49161°WElev: 1450.0ft.

30°F

-1°C

Humidity	95%
Wind Speed	WNW 8 MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	NA
Wind Chill	22°F (-6°C)
Last update	24 Dec 03:41 AM PST

More Information:

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

Extended Forecast for

24 Miles NNE 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: 23 °F
Heavy Snow
Wednesday
High: 29 °F
Heavy Snow
and Breezy
Wednesday Night
Low: 14 °F
Chance Snow
then Partly
Cloudy
Christmas Day
High: 25 °F
Snow
Thursday Night
Low: 19 °F
Snow then
Chance Snow
Friday
High: 22 °F
Snow
Friday Night
Low: 6 °F
Chance Snow
then Slight
Chance Snow
Saturday
High: 16 °F
Partly Sunny

Detailed Forecast

Overnight

Snow. The snow could be heavy at times. Steady temperature around 23. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 2 to 4 inches possible.

Wednesday

Snow, mainly before 4pm. The snow could be heavy at times. High near 29. Breezy, with a southeast wind 14 to 18 mph becoming west in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 100%. New snow accumulation of 8 to 12 inches possible.

Wednesday Night

A 30 percent chance of snow before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 14. Southwest wind 7 to 11 mph, with gusts as high as 23 mph. New snow accumulation of less than one inch possible.

Christmas Day

Snow, mainly after 10am. High near 25. Southwest wind 6 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Thursday Night

Snow, mainly before 10pm. Low around 19. West wind around 9 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Friday

Snow, mainly between 10am and 4pm. High near 22. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Friday Night

A 50 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 6. New snow accumulation of less than a half inch possible.

Saturday

Partly sunny, with a high near 16.

Saturday Night

A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 9.

Sunday

A 20 percent chance of snow before 10am. Mostly cloudy, with a high near 24.

Sunday Night

Mostly cloudy, with a low around 16.