Photo: Jessica Christian / The Chronicle
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A large storm Tuesday is expected to pummel the region with another round of heavy rain and a chance of thunder, according to the National Weather Service.
Cloudy weather on Monday provided a break from the weekend precipitation, which brought gusty winds and major delays to the area’s airports. But Tuesday’s cold front is expected to dump rainfall amounts similar to Sunday’s totals, officials said.
Sunday’s storm dropped 1.28 inches of rain on San Francisco, 1.24 inches on Oakland, 2.58 inches on Santa Rosa and 0.78 inches on San Jose over a 24-hour period, according to the weather service.
The agency issued a wind advisory for the Bay Area from 7 a.m. Tuesday to 10 p.m. Wednesday. Winds around 20 to 30 mph are expected for the region, while coastal areas may experience gusts up to 45 mph and local peaks could see winds up to 60 mph.
“It is a typical winter storm,” said Steve Anderson, a National Weather Service meteorologist. “When the storm comes through, it’ll have unstable air behind it and sometimes that’ll lead to a chance of thunderstorms.”
A surf advisory is in effect from 9 p.m. Tuesday to 9 p.m. Wednesday. Breaking waves between 18 and 24 feet, and as high as 27 feet in some places, may hit the coast from Sonoma County to Big Sur, officials said.
The wet weather will subside briefly Wednesday night and Thursday morning before another rain and wind storm kicks up in the Bay Area, said Roger Gass, a weather service meteorologist.
“We’ll keep this pattern up where system after system sweeps through,” he said.
Repeated rainstorms boosted water totals, with San Francisco now at 7.36 inches of rainfall, or 76 percent of average rain totals, since the water year began Oct. 1. Concord Airport has measured 6.33 inches and stands at 100 percent of average as of early Monday morning, Gass said.
Multiple rainstorms over the past week have saturated the region, prompting weather officials to closely monitor potential flooding.
Minor floods this past weekend shut down swaths of the Embarcadero and Great Highway in San Francisco and Highway 85 in San Jose for brief periods.
However, expected rainfall rates are not yet high enough to trigger mudslides, officials said.
“Most of these storm systems are pretty beneficial, and not so much heavy, heavy rain causing flooding concerns at this moment,” Gass said. “We’ll take all the rain we can get.”
In the Sierra, ski resorts received up to 4 feet of snow over the weekend, trapping drivers on Interstate 80 as they traveled to and from the Tahoe region. A hard closure on I-80 was lifted Monday morning as snow showers lightened up, allowing drivers through the mountain pass between Colfax (Placer County) and the Nevada state line, according to Caltrans.
Officials anticipate more snow in the Sierra with Tuesday and Friday storms
This post was originally posted at https://www.sfgate.com/bayarea/article/More-storms-expected-to-douse-Bay-Area-officials-13513862.php.