The storm forced a rare postponement of a game at San Francisco’s AT&T Park Friday, where the Giants had been set to host the Dodgers.
Sacramento and Oroville broke daily records for rainfall Friday, and Santa Rosa saw 3.44 inches of rain from the storm. Parts to the north of the Bay Area got drenched by more than 6 inches of rain during the storm, according to the weather service. San Francisco by early Saturday morning had recorded 2.22 inches of rain since the previous night, ranking it as the second-highest one-day total for the month of April. The “atmospheric river” storm - a long plume of water vapor pouring over from the Pacific Ocean - is loaded with warm tropical moisture that will accelerate snowmelt at some of the highest elevations along the northern and central Sierra Nevada. The flooding is expected to affect campgrounds, yards and basements of low-lying homes along the river, she said. The river reached its flood stage of 4.5 feet and is expected to crest at 5.7 feet Saturday afternoon, said meteorologist Courtney Obergfell. The Truckee River also flooded early Saturday morning, according to the weather service. The rain was expected to taper off Saturday afternoon, but there remains a threat of mudslides in the Yosemite Valley due to recent wildfires, Ochs said.