Picture No 10800466 Date 20th century Description Hurricane Waves Details Hurricane waves striking sea wall. No location or date given. A hurricane is a severe, rotating tropical storm with heavy rains and cyclonic winds exceeding 74 miles (119 km) per hour, especially when occurring in the Northern Hemisphere. Hurricanes originate in the tropical parts of the Atlantic Ocean or the Caribbean Sea and move generally northward. They lose force when they move over land or colder ocean waters. Source Photo Researchers Credit Line ©Photo Researchers / Mary Evans Picture Library