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Bay Area storm could bring heavy winds, thunder, rock slides and big waves

SF Gate logo SF Gate 1/9/2019 By Sarah Ravani

a person walking down a street holding an umbrella in the rain: A pedestrian makes his way over Market Street as rain continued through the weekend in San Francisco on Sunday, January 6, 2019.

A pedestrian makes his way over Market Street as rain continued through the weekend in San Francisco on Sunday, January 6, 2019.
© Provided by Hearst Newspapers

Heavy wind, thunderstorms and potential rockslides threatened the Bay Area Tuesday as another storm made landfall, officials said.

The heaviest amount of rain was expected to arrive Tuesday night with a few light sprinkles expected throughout Wednesday, said Roger Gass, a meteorologist with the National Weather Service.

San Francisco will receive close to half an inch of rain and a third of an inch is expected in San Jose, Gass said, while the North Bay should see up to an inch and a half of rain. Coastal mountains could receive up to three inches of precipitation.

“Overall, not a whole lot of rain,” Gass said.

The storm will likely bring strong winds that are expected to gust at 40 mph and thunder might be heard, forecasters said. By mid-morning Tuesday, wind gusts had already reached 34 mph at Mount Diablo.

“Now that we’ve had several systems move through recently, it has helped the ground become a little more saturated,” Gass said, adding that the powerful winds and wet conditions could bring flooding and rock slides to some parts of the region.

A high surf advisory will last through Wednesday with large breaking waves expected along the coast.

Temperatures in the Bay Area will remain relatively mild this week with highs in the upper 50s throughout the day and lower 50s overnight, officials said.

The storm will taper off by Wednesday morning, but “we are not quite done,” Gass warned.

The potential for more rainfall will continue this weekend.

“There’s still a lot of uncertainty heading into the weekend,” Gass said. “But it does look like another round of rain and possibly some gusty winds will return Friday with additional systems pushing through during the weekend.”

Sarah Ravani is a San Francisco Chronicle staff writer. Email: sravani@

sfchronicle.com Twitter: @SarRavani

a person walking down a sidewalk holding an umbrella: People wait for the bus along Market Street as rain continued through the weekend in San Francisco on Sunday, January 6, 2019. © Provided by Hearst Newspapers People wait for the bus along Market Street as rain continued through the weekend in San Francisco on Sunday, January 6, 2019.
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