California was hit by the first of two atmospheric rivers, causing heavy rain, flooding, and strong winds. The storm is expected to continue and is particularly targeting Southern California. The weather service has issued flood warnings for the Bay Area and Central Coast, and the Central Coast could see waves up to 18 feet high. San Francisco’s cable cars were halted, and power outages were reported. The storm is part of a series, with an even stronger storm expected on Sunday. The California Governor’s Office of Emergency Services has activated its operations center in response to the weather threat.