The Okeechobee Hurricane or Hurricane San Felipe Segundo was a deadly hurricane that struck the Leeward Islands, Puerto Rico, the Bahamas, and Florida in September of the 1928 Atlantic hurricane season. It was the first recorded hurricane to reach Category 5 status on the Saffir-Simpson Hurricane Scale in the Atlantic basin; it remains the only recorded hurricane to strike Puerto Rico at Category 5 strength, and one of the ten most intense ever recorded to make landfall in the United States.
The hurricane caused devastation throughout its path. As many as 1,200 people were killed in Guadeloupe. Puerto Rico was struck directly by the storm at peak strength, killing at least 300 and leaving hundreds of thousands homeless. In south Florida at least 2,500 were killed when storm surge from Lake Okeechobee breached the dike surrounding the lake, flooding an area covering hundreds of square miles. In total, the hurricane killed at least 4,075 people and caused around $100 million ($800 million in 2005 US dollars) in damages over the course of its path.