High surf drove waves onto Highway 1 near the Piedras Blancas elephant seal rookery on Tuesday. The highway is slated to be realigned to the east, away from the ocean.
The National Weather Service issued a high surf advisory for San Luis Obispo County for Tuesday and Wednesday.
PG&E meteorologist John Lindsey attributed the high surf to a storm over the weekend in the Gulf of Alaska that generated near hurricane-force winds. The swell from the resulting high waves took about two days to reach the Central Coast, peaking at more than 10 feet at Diablo Canyon on Tuesday.
A buoy north of Morro Bay recorded the same swell at near 16 feet.