Tropical Storm Simon was producing large swells that prompted a high-surf warning for many Southern California beaches on Monday and Tuesday.
Downgraded from a hurricane, the weakening storm was sweeping northeast through the Pacific Ocean toward Baja California, where it was expected to make landfall before dawn Wednesday.
Meanwhile, beaches facing south and southeast in Los Angeles, Orange and Ventura counties were forecast to see surf of 6 to 8 feet through Tuesday evening.
Strong rip currents were also predicted, and swimmers and surfers were advised to stay out of the water or enter near a lifeguard.
Over the weekend, Los Angeles County lifeguards preformed 481 ocean rescues, the division stated on Twitter.
The combination of the high surf and 6-foot tides could create minor coastal flooding in the area of Long Beach, according to the National Weather Service.
Dense fog was expected Tuesday morning, the weather service said.
Meanwhile, temperatures were expected to remain relatively high, with hot conditions and elevated fire danger from Tuesday through the weekend.