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

Hayward, Hayward Air Terminal (KHWD)

Lat: 37.66083°NLon: 122.11833°WElev: 46.0ft.

Partly Cloudy

59°F

15°C

Humidity	67%
Wind Speed	S 12 MPH
Barometer	29.84 in (1010.5 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	25 Dec 10:00 AM PST

More Information:

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

Extended Forecast for

3 Miles ESE Fairview CA

Flood Watch December 25, 10:17am until December 26, 10:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch December 25, 10:17am until December 26, 10:00pm
NOW until 10:00pm Fri
Flood Watch
Christmas Day
High: 55 °F
Severe
Thunderstorms
Tonight
Low: 51 °F
Severe
Thunderstorms
then Rain
Likely
Friday
High: 54 °F
Rain
Friday Night
Low: 44 °F
Chance Rain
then Slight
Chance Rain
Saturday
High: 52 °F
Slight Chance
Rain then
Mostly Sunny
Saturday Night
Low: 37 °F
Mostly Clear
then Patchy
Frost
Sunday
High: 51 °F
Areas Frost
then Sunny
Sunday Night
Low: 36 °F
Clear then
Patchy Frost

Detailed Forecast

Christmas Day

Showers and possibly a thunderstorm before 4pm, then rain after 4pm. Some of the storms could be severe. High near 55. South southeast wind 17 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Rain before 7pm, then showers and possibly a thunderstorm between 7pm and 10pm, then rain likely after 10pm. Some of the storms could be severe. Steady temperature around 51. South southwest wind 17 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain, mainly before 4pm. High near 54. South wind 10 to 16 mph, with gusts as high as 29 mph. 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. Mostly cloudy, with a low around 44. South wind around 7 mph. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A 20 percent chance of rain before 10am. Partly sunny, with a high near 52. North wind around 7 mph.

Saturday Night

Patchy frost after 4am. Otherwise, mostly clear, with a low around 37.

Sunday

Areas of frost before 8am. Otherwise, sunny, with a high near 51.

Sunday Night

Patchy frost after 2am. Otherwise, clear, with a low around 36.

Monday

Areas of frost before 8am. Otherwise, sunny, with a high near 53.

Monday Night

Patchy frost after 3am. Otherwise, mostly clear, with a low around 36.