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

Flood Watch until December 26, 10:00 PM PST

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Mostly Cloudy

58°F

14°C

Humidity	64%
Wind Speed	S 18 MPH
Barometer	29.76 in (1007.79 mb)
Dewpoint	46°F (8°C)
Visibility	10.00 mi
Last update	25 Dec 01:53 PM PST

More Information:

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

Extended Forecast for

2 Miles W Guerneville CA

Flood Watch December 25, 02:11pm until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 25, 02:11pm until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Christmas Day
High: 51 °F
Severe
Thunderstorms
Tonight
Low: 46 °F
Severe
Thunderstorms
Friday
High: 52 °F
Showers
Friday Night
Low: 43 °F
Showers
Likely then
Slight Chance
Showers
Saturday
High: 52 °F
Slight Chance
Showers then
Sunny
Saturday Night
Low: 38 °F
Partly Cloudy
Sunday
High: 54 °F
Mostly Sunny
Sunday Night
Low: 38 °F
Mostly Clear

Detailed Forecast

Christmas Day

Showers and possibly a thunderstorm. Some of the storms could be severe. High near 51. South wind around 15 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and possibly a thunderstorm before 1am, then showers likely. Some of the storms could be severe. Low around 46. South southwest wind 9 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday

Showers before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 52. South southeast wind 7 to 9 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

Showers likely and possibly a thunderstorm before 7pm, then a chance of showers. Mostly cloudy, then gradually becoming mostly clear, with a low around 43. North northwest wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A 20 percent chance of showers before 10am. Sunny, with a high near 52. North northwest wind 3 to 5 mph.

Saturday Night

Partly cloudy, with a low around 38.

Sunday

Mostly sunny, with a high near 54.

Sunday Night

Mostly clear, with a low around 38.

Monday

Sunny, with a high near 56.

Monday Night

Mostly clear, with a low around 40.