Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

READER RANCH (RRRC1)

Lat: 39.30351°NLon: 121.11725°WElev: 1968.0ft.

46°F

8°C

Humidity	97%
Wind Speed	S 3 MPH
Barometer	NA
Dewpoint	45°F (7°C)
Visibility	NA
Last update	25 Dec 04:13 PM PST

More Information:

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

Extended Forecast for

3 Miles NNW Penn Valley CA

Flood Watch December 25, 04:39pm until December 26, 04:00pm

Wind Advisory until December 26, 10:00am

Flood Advisory December 25, 04:39pm until December 25, 09:00pm

Click here for hazard details and duration

Flood Watch

Wind Advisory

Flood Advisory

Flood Watch December 25, 04:39pm until December 26, 04:00pm
Wind Advisory until December 26, 10:00am
Flood Advisory December 25, 04:39pm until December 25, 09:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Christmas Day
High: 50 °F
Showers
Tonight
Low: 43 °F
Rain
Friday
High: 47 °F
Rain
Friday Night
Low: 41 °F
Rain
Saturday
High: 47 °F
Chance Rain
then Mostly
Sunny
Saturday Night
Low: 33 °F
Partly Cloudy
Sunday
High: 48 °F
Mostly Sunny
Sunday Night
Low: 34 °F
Mostly Clear

Detailed Forecast

Christmas Day

Showers and possibly a thunderstorm. High near 50. South wind around 16 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Rain and possibly a thunderstorm. Low around 43. South wind 11 to 20 mph, with gusts as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Friday

Rain. High near 47. South southeast wind 10 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday Night

Rain, mainly before 4am. Low around 41. Southeast wind 5 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday

A 30 percent chance of rain before 10am. Mostly sunny, with a high near 47. Calm wind becoming northwest around 5 mph in the afternoon.

Saturday Night

Partly cloudy, with a low around 33.

Sunday

Mostly sunny, with a high near 48.

Sunday Night

Mostly clear, with a low around 34.

Monday

Sunny, with a high near 51.

Monday Night

Mostly clear, with a low around 35.