Coastal Storm Along the East Coast; Pacific Storm System in the West on Friday

A strengthening coastal storm will bring soaking rains to portions of the Mid-Atlantic and Northeast, with accumulating snow likely across the higher elevations of northern New England through Friday. A Pacific storm system will bring heavy low elevation rain, and gusty winds to northern California and the Pacific Northwest, as well as possible blizzard conditions to the Sierra Nevada on Friday. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory until November 13, 04:00 PM PST

Current conditions at

FW3625 San Ramon (F3625)

Lat: 37.738°NLon: 121.945°WElev: 415.09ft.

69°F

21°C

Humidity	45%
Wind Speed	N 0 MPH
Barometer	29.89 in (1012.19 mb)
Dewpoint	47°F (8°C)
Visibility	NA
Last update	12 Nov 02:55 PM PST

More Information:

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

Extended Forecast for

Castro Valley CA

Coastal Flood Advisory November 12, 03:03pm until November 13, 04:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Coastal Flood Advisory November 12, 03:03pm until November 13, 04:00pm
NOW until 4:00pm Fri
Coastal Flood Advisory
Tonight
Low: 54 °F
Partly Cloudy
then Slight
Chance Rain
Friday
High: 59 °F⇓
Rain
Friday Night
Low: 48 °F
Chance Rain
Saturday
High: 63 °F
Decreasing
Clouds
Saturday Night
Low: 49 °F
Mostly Cloudy
Sunday
High: 63 °F
Chance Rain
then Rain
Sunday Night
Low: 48 °F
Rain then
Rain Likely
Monday
High: 58 °F
Chance Rain
then Mostly
Sunny

Detailed Forecast

Tonight

A 10 percent chance of rain after 4am. Increasing clouds, with a low around 54. Southeast wind 9 to 11 mph, with gusts as high as 23 mph.

Friday

Rain, mainly after 9am. Temperature rising to near 59 by noon, then falling to around 55 during the remainder of the day. South wind 11 to 17 mph becoming west southwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Friday Night

A 40 percent chance of rain between 10pm and 1am. Mostly cloudy, with a low around 48. Southwest wind around 5 mph becoming light and variable after midnight. New precipitation amounts of less than a tenth of an inch possible.

Saturday

Cloudy, then gradually becoming mostly sunny, with a high near 63. Light and variable wind becoming west southwest around 5 mph in the afternoon.

Saturday Night

Mostly cloudy, with a low around 49. Calm wind.

Sunday

Rain, mainly after 4pm. High near 63. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday Night

Rain, mainly before 4am. Low around 48. Chance of precipitation is 90%.

Monday

A chance of rain before 10am. Partly sunny, with a high near 58.

Monday Night

Partly cloudy, with a low around 43.