High surf at Ocean Beach pier
High waves crash into Ocean Beach Pier in this file photo by Chris Stone.

Lifeguards with the San Diego Fire-Rescue Department closed the Ocean Beach Pier on Wednesday because of potentially dangerous high tides and surf.

The National Weather Service office in San Diego has issued a high surf advisory through Thursday night. Waves ranging from 6 to 14 feet are possible in some areas, with the highest sets anticipated south of Del Mar.

The pier will be closed for the duration of the high surf advisory, but had not been damaged as of 10:15 a.m.

The large western swell could cause dangerous conditions for surfers, swimmers and boaters.

Chris Jennewein is founder and senior editor of Times of San Diego.