Big surf, 80-degree weather expected across L.A. area

Temperatures are expected to be in the 70s and 80s in Southern California on Thursday as warm offshore winds blow across the region and huge waves pound the coast, forecasters said.

A high surf advisory has been issued for strong rip currents and big waves, the National Weather Service said.

The surf at beaches in Los Angeles and Ventura counties will be as high as 12 feet through Friday afternoon. The swell was coming up Wednesday at Los Angeles-area beaches.

VIDEO: Chasing the Swell: Big wave surfing

The warmest temperatures will be in the valley and coastal areas, the weather service said. Temperatures will be 5 to 15 degrees warmer than those recorded Wednesday.

The winds are expected to blow between 15 mph and 25 mph, with a few isolated gusts up to 40 mph in mountain areas, according to the weather service.

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-- Robert J. Lopez

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Photo: A surfer tries to stay ahead of a huge wave Wednesday at Manhattan Beach. Credit: Luis Sinco / Los Angeles Times