https://www.mercurynews.com/2021/12/25/wet-christmas-for-bay-with-white-week-ahead-for-tahoe-sierra/

Brief bouts and gloomy gusts of rain will cover the Bay Area on Christmas Day, bring worrisome conditions to the Sierra and linger through mid-week, the National Weather Service said.

“We have some thunderstorms reported up near Santa Rosa and with the showers and isolated thunderstorms moving through. We’re seeing some brief heavy rainfall, small lightning and a little bit of gusty wind as well,” meteorologist Roger Gass said Saturday morning.