Day 3 of big waves expected in Southern California

Swimmers advised not to go into the water because of the high surf.

A third day of huge waves, dangerous rip currents and potential flooding is expected in Southern California as the coast feels the effects of Hurricane Marie churning off the Mexican coast.

The National Weather Service says the biggest surf Thursday will occur in Los Angeles and Ventura counties, with wave sets topping 15 feet in some areas.

A high surf advisory is in effect through Friday.

Late Wednesday, a beachside structure in Malibu collapsed after being battered by waves for more than a day.

The Cove House, used by lifeguards as a home base for decades, had been emptied out after officials became worried about its structural integrity.

The powerful storm surge has damaged piers, overtopped walls, flooded coastal homes and tossed heavy rocks from a seawall onto a road.