San Francisco, Marin County, and other parts of California are experiencing significant flooding due to king tides, marking the highest summer tides on record. Coastal flood advisories have been issued from the Bay Area to Southern California, warning residents of hazardous conditions, including road closures and destructive surf. Despite the absence of rain, rising sea levels have led to coastal flooding, particularly impacting the Embarcadero in San Francisco and beachfront homes in Southern California. Areas such as Long Beach have reported mud-covered streets as a result of the relentless tides. Authorities are urging residents to stay away from affected beaches as they monitor the situation closely.