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

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

40°F

4°C

Humidity	99%
Wind Speed	SSE 3 MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Last update	24 Dec 02:52 AM PST

More Information:

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

Extended Forecast for

7 Miles NE Happy Camp CA

Wind Advisory until December 24, 01:00pm

Winter Storm Warning December 24, 03:54am until December 26, 10:00am

Click here for hazard details and duration

Wind Advisory

Winter Storm Warning

Wind Advisory until December 24, 01:00pm
Winter Storm Warning December 24, 03:54am until December 26, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 39 °F
Rain
Wednesday
High: 51 °F
Rain Likely
and Breezy
then Slight
Chance Rain
Wednesday Night
Low: 38 °F
Rain Likely
then Rain
Christmas Day
High: 46 °F
Rain
Thursday Night
Low: 37 °F
Rain
Friday
High: 45 °F
Rain
Friday Night
Low: 30 °F
Chance Rain
then Slight
Chance Rain
Saturday
High: 44 °F
Mostly Sunny

Detailed Forecast

Overnight

Rain. Low around 39. East southeast wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

Rain likely, mainly before 4pm. Snow level 5500 feet lowering to 4300 feet. Partly sunny, with a high near 51. Breezy, with a south southwest wind 20 to 25 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain, mainly after 11pm. Snow level 4800 feet rising to 5400 feet after midnight. Low around 38. East wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Christmas Day

Rain. Snow level 4100 feet. High near 46. South wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Rain. Snow level 3800 feet. Low around 37. South wind around 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain, mainly before 4pm. Snow level 3800 feet. High near 45. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

A 50 percent chance of rain, mainly before 10pm. Snow level 3300 feet. Mostly cloudy, with a low around 30.

Saturday

Mostly sunny, with a high near 44.

Saturday Night

Partly cloudy, with a low around 27.

Sunday

Mostly sunny, with a high near 48.

Sunday Night

Mostly clear, with a low around 30.

Monday

Sunny, with a high near 53.