"Large breaking waves of 8 to 12 feet for northwest facing beaches with dangerous rip currents," the advisory said. "There is an increased risk for ocean drowning. Rip currents can pull swimmers and ...

Tsunamis and tidal waves are the powerful types of wave on Earth, but very different processes are involved in their formation.

Don’t be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water ...