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 24, 01:00 PM PST

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

40°F

4°C

Humidity	99%
Wind Speed	W 1 MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Last update	24 Dec 05:52 AM PST

More Information:

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

Extended Forecast for

4 Miles S Agness OR

Wind Advisory December 24, 06:46am until December 24, 01:00pm

Click here for hazard details and duration

Wind Advisory

Wind Advisory December 24, 06:46am until December 24, 01:00pm
NOW until 1:00pm Wed
Wind Advisory
Today
High: 44 °F
Rain and
Breezy then
Chance Rain
Tonight
Low: 43 °F
Rain
Christmas Day
High: 46 °F
Rain and
Breezy
Thursday Night
Low: 40 °F
Rain
Friday
High: 44 °F
Rain
Friday Night
Low: 36 °F
Rain Likely
then Chance
Rain
Saturday
High: 45 °F
Slight Chance
Rain/Snow
then Sunny
Saturday Night
Low: 34 °F
Partly Cloudy

Detailed Forecast

Today

Rain before 1pm, then a chance of rain after 5pm. Snow level 6400 feet lowering to 3900 feet in the afternoon . Steady temperature around 44. Breezy, with a south wind 23 to 28 mph decreasing to 11 to 16 mph in the morning. Winds could gust as high as 44 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

Tonight

Rain. Snow level 4700 feet rising to 5200 feet after midnight. Low around 43. Southeast wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Christmas Day

Rain. Snow level 4000 feet. High near 46. Breezy, with a south wind 16 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday Night

Rain. Snow level 3800 feet. Low around 40. South southeast wind around 11 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Rain. Snow level 3700 feet. High near 44. East southeast wind 7 to 9 mph becoming north northeast in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

Rain likely, mainly before 10pm. Snow level 3200 feet. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.

Saturday

A slight chance of rain and snow before 10am. Snow level 2900 feet. Mostly sunny, with a high near 45. Chance of precipitation is 20%.

Saturday Night

Partly cloudy, with a low around 34.

Sunday

Mostly sunny, with a high near 51.

Sunday Night

Partly cloudy, with a low around 38.

Monday

Sunny, with a high near 55.