Gray whale reportedly sighted in San Diego Bay

A fisherman reported spotting a gray whale in San Diego Bay on Monday, a U.S. Coast Guard spokesman said.

The angler said he caught sight of the cetacean as it tooled the waters off Shelter Island about 7:30 a.m., according to USCG Petty Officer Henry Dunphy.

The federal maritime agency urges boaters to stay at least 100 yards from whales for safety reasons.

The leviathan mammals occasionally wander into the harbor when migrating up and down the coast of California. Last spring, a 30-foot gray whale made the bay its home for more than three weeks, becoming a tourist attraction and gaining the nickname “Diego” before making its way back into the open ocean.