Hurricane Irma was an extremely powerful and devastating tropical cyclone that caused extensive damage and multiple deaths across the Antilles and Eastern United States in September 2017. Irma was the first Category 5 hurricane to strike the Leeward Islands on record, followed by Hurricane Maria, which struck the region at Category 5 intensity two weeks later. At the time, Irma was considered the most powerful hurricane on record in the open Atlantic region, outside of the Caribbean Sea and Gulf of Mexico, until it was surpassed by Hurricane Dorian two years later. It was also the third-strongest Atlantic hurricane at landfall ever recorded, just behind the 1935 Labor Day hurricane, Hurricane Melissa, and Dorian. Category 5 hurricane: peak winds of 180 mph (155 knots), lowest pressure 914 mb. August 30 – September 13, 2017. Landfalls: September 6 at 180 mph, 17.7°N 61.8°W; September 6 at 180 mph, 18.1°N 63.1°W; September 6 at 180 mph, 18.5°N 64.4°W; September 8 at 155 mph, 21.5°N 73.0°W; September 9 at 165 mph, 22.3°N 77.9°W; September 10 at 130 mph, 24.7°N 81.5°W; September 10 at 115 mph, 25.9°N 81.7°W. Accumulated cyclone energy: 64.9. Wiki link Track: NOAA National Hurricane Center, HURDAT2 best track AL112017 (public domain).