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

STONYFORD (SYWC1)

Lat: 39.35523°NLon: 122.65831°WElev: 1540.0ft.

49°F

9°C

Humidity	82%
Wind Speed	S 5 MPH
Barometer	NA
Dewpoint	44°F (7°C)
Visibility	NA
Wind Chill	47°F (8°C)
Last update	25 Dec 01:26 AM PST

More Information:

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

Extended Forecast for

18 Miles SSE Alder Springs CA

Flood Watch December 25, 02:16am until December 26, 04:00pm

Winter Storm Warning until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Winter Storm Warning

Flood Watch December 25, 02:16am until December 26, 04:00pm
Winter Storm Warning until December 26, 10:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 39 °F
Showers and
Breezy
Christmas Day
High: 46 °F
Rain
Thursday Night
Low: 39 °F
Showers
Friday
High: 45 °F
Rain
Friday Night
Low: 33 °F
Chance Rain
then Slight
Chance Rain
Saturday
High: 46 °F
Slight Chance
Rain/Snow
then Sunny
Saturday Night
Low: 32 °F
Mostly Clear
Sunday
High: 50 °F
Mostly Sunny

Detailed Forecast

Overnight

Showers and possibly a thunderstorm. Low around 39. Breezy, with a south southeast wind around 24 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Christmas Day

Rain and thunderstorms. High near 46. South wind 18 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Rain and possibly a thunderstorm before 8pm, then showers likely and possibly a thunderstorm between 8pm and 10pm, then rain likely after 10pm. Steady temperature around 39. South wind 16 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain, mainly before 4pm. High near 45. South wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday Night

A 50 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 33. Northwest wind around 6 mph.

Saturday

A slight chance of rain and snow before 10am. Mostly sunny, with a high near 46. Chance of precipitation is 20%.

Saturday Night

Mostly clear, with a low around 32.

Sunday

Mostly sunny, with a high near 50.

Sunday Night

Clear, with a low around 33.

Monday

Sunny, with a high near 54.