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

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Rain

54°F

12°C

Humidity	93%
Wind Speed	SSE 11 MPH
Barometer	29.65 in (1004.06 mb)
Dewpoint	52°F (11°C)
Visibility	10.00 mi
Last update	25 Dec 04:20 AM PST

More Information:

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

Extended Forecast for

2 Miles E San Leandro CA

Flood Watch December 25, 04:39am until December 26, 10:00pm

Wind Advisory December 25, 04:39am until December 25, 10:00am

Flood Advisory until December 25, 05:45am

Click here for hazard details and duration

Flood Watch

Wind Advisory

Flood Advisory

Flood Watch December 25, 04:39am until December 26, 10:00pm
Wind Advisory December 25, 04:39am until December 25, 10:00am
Flood Advisory until December 25, 05:45am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 53 °F
Severe
Thunderstorms
Christmas Day
High: 58 °F
Severe
Thunderstorms
Thursday Night
Low: 53 °F
Severe
Thunderstorms
then Rain
Likely
Friday
High: 58 °F
Rain
Friday Night
Low: 46 °F
Chance Rain
Saturday
High: 55 °F
Slight Chance
Rain
Saturday Night
Low: 39 °F
Mostly Clear
Sunday
High: 55 °F
Sunny

Detailed Forecast

Overnight

Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 53. South wind around 20 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Christmas Day

Showers and possibly a thunderstorm before 7am, then rain between 7am and 10am, then showers and possibly a thunderstorm after 10am. Some of the storms could be severe. High near 58. Southwest wind 16 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and possibly a thunderstorm before 10pm, then rain likely after 10pm. Some of the storms could be severe. Steady temperature around 53. South southeast wind 13 to 18 mph becoming southwest after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Friday

Rain. High near 58. South wind around 11 mph, with gusts as high as 23 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. Mostly cloudy, with a low around 46. Southwest wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.

Saturday

A 20 percent chance of rain. Partly sunny, with a high near 55.

Saturday Night

Mostly clear, with a low around 39.

Sunday

Sunny, with a high near 55.

Sunday Night

Patchy frost after 5am. Otherwise, mostly clear, with a low around 38.

Monday

Patchy frost before 7am. Otherwise, sunny, with a high near 57.

Monday Night

Mostly clear, with a low around 38.