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

Wind Advisory until December 25, 04:00 PM PST

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

46°F

8°C

Humidity	88%
Wind Speed	SW 2 MPH
Barometer	NA
Dewpoint	43°F (6°C)
Visibility	NA
Last update	25 Dec 02:52 PM PST

More Information:

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

Extended Forecast for

17 Miles SSE Agness OR

Wind Advisory December 25, 03:21pm until December 25, 04:00pm

Click here for hazard details and duration

Wind Advisory

Wind Advisory December 25, 03:21pm until December 25, 04:00pm
NOW until 4:00pm Thu
Wind Advisory
Christmas Day
High: 42 °F
Showers
Likely and
Breezy
Tonight
Low: 36 °F
Showers and
Breezy
Friday
High: 39 °F
Showers then
Chance
Showers
Friday Night
Low: 32 °F
Rain/Snow
Saturday
High: 39 °F
Snow Likely
then Chance
Rain/Snow
Saturday Night
Low: 30 °F
Mostly Cloudy
Sunday
High: 44 °F
Mostly Sunny
Sunday Night
Low: 34 °F
Partly Cloudy

Detailed Forecast

Christmas Day

Showers likely and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. Snow level 3900 feet. Mostly cloudy, with a high near 42. Breezy, with a south wind around 24 mph, with gusts as high as 41 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers. Snow level 3800 feet. Low around 36. Breezy, with a south wind 14 to 23 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Showers, mainly before noon. Snow level 3700 feet. High near 39. West southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Friday Night

Rain, possibly mixed with snow, becoming all snow after 1am. Snow level 2900 feet lowering to 2400 feet after midnight . Low around 32. Northwest wind 6 to 8 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Saturday

Snow likely before 1pm, then a chance of rain. Snow level rising to 2800 feet in the afternoon. Partly sunny, with a high near 39. North northeast wind 5 to 7 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, with a low around 30.

Sunday

Mostly sunny, with a high near 44.

Sunday Night

Partly cloudy, with a low around 34.

Monday

Mostly sunny, with a high near 50.

Monday Night

Partly cloudy, with a low around 36.

Tuesday

Mostly sunny, with a high near 53.