Flooding Possible In Lamorinda As Atmospheric River Inundates Area

LAMORINDA, CA —The National Weather Service issued a flood watch and a wind advisory for the East Bay from early Wednesday morning until early Thursday morning as an impactful atmospheric river brings heavy rain and gusty winds to the Bay Area.

Periods of moderate to heavy rainfall will bring the potential for moderate to rapid rises along area rivers, streams and creeks across the region.

The majority of the day Wednesday will be rainy, wet, and windy, with 90 percent chance of rain in Lamorinda during the day and 100 percent chance at night. The East Bay is expected to see around 1.5-2 inches of rain, forecasters said.

A flood watch means flooding is possible and that residents should monitor local forecasts and be alert for possible flood warnings.

"Those living in areas prone to flooding should be prepared to take action should flooding develop," the weather service said. "Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. Storm drains and ditches may become clogged with debris."

• RELATED: Atmospheric River Set To Slam Bay Area, Fanning Flood Concerns

Meanwhile, winds of 25-35 mph with gusts up to 45 mph could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result, the weather service said.

Here is the current seven-day weather forecast for Lamorinda:

Wednesday
Rain, mainly after 11am. High near 58. Breezy, with a south wind 22 to 29 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Wednesday Night
Rain. Low around 48. South wind 10 to 20 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Thursday
Showers and possibly a thunderstorm. Some of the storms could produce small hail and heavy rain. High near 56. South wind 7 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night
Showers likely and possibly a thunderstorm before 11pm, then rain likely after 11pm. Some of the storms could produce small hail and heavy rain. Mostly cloudy, with a low around 45. West southwest wind around 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday
Rain. High near 54. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 41.

Saturday
A chance of rain. Partly sunny, with a high near 54.

Saturday Night
A chance of rain. Mostly cloudy, with a low around 43.

Sunday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 55.

Sunday Night
Rain likely. Mostly cloudy, with a low around 45.

Monday
Rain likely. Mostly cloudy, with a high near 55.

Monday Night
Rain likely. Mostly cloudy, with a low around 44.

Tuesday
Rain likely. Mostly cloudy, with a high near 54.