High surf advisory for Los Angeles and OC beaches

- A high surf advisory was in effect Sunday for the Los Angeles and Orange counties coast, with waves up to 12 feet expected.

The National Weather Service advisory expires at 2 p.m. Tuesday, and warns the large surf could cause additional beach erosion and strong rip currents that pose a drowning risk.

Waves have already washed away beaches and cut into embankments up to the pavement on Pacific Coast Highway on either side of Malibu, at Topanga beach and near Point Mugu.

"Sneaker waves can suddenly overrun previously dry beaches and jetties,'' the Weather Service advised. "Minor coastal flooding is possible around times of high tide for low-lying areas such as beach parking lots.''

Exposed west- to northwest-facing beaches will see the highest surf, according to the NWS.

Meanwhile, the U.S. Coast Guard advised the public to exercise caution around Southern California harbors.

"A combination of larger sea swells and tides are occurring due to the effects of several severe weather systems moving through the area,'' according to a Coast Guard statement.

The danger was higher to the north of Los Angeles County. Shoaling was reported in the harbor channels at Ventura and Morro Bay, officials said.

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