https://www.mercurynews.com/2021/09/10/no-major-damage-apparent-after-bay-area-lightning-show/

As expected, lightning lit up the Bay Area on Thursday, and small amount of rain fell, and forecasters with the National Weather Service said danger still loomed Friday morning as remnants of a southwestern monsoon system moved toward Sacramento and Nevada.

A red-flag warning remained in effect until 11 a.m., and forecasters said more lightning may occur before then but that much of the lightning over the Bay Area had ceased. The weather service said it confirmed about 110 cloud-to-ground lightning strikes in the Bay Area, and meteorologist Brayden Murdock said most of them were in the North Bay.