The elevated surf and strong rip currents pose a significant risk to beachgoers, particularly in Los Angeles, Ventura, Orange, and San Diego counties. Beach erosion and flooding are also concerns, especially during the coastal flood advisory period. Swells from previous hurricanes this season have already caused damage to California's coastline, including the formation of sinkholes. The National Weather Service warns that these conditions could be life-threatening, urging caution and adherence to lifeguard instructions.