Hurricane Hattie was the strongest and deadliest tropical cyclone of the 1961 Atlantic hurricane season, reaching peak intensity as a Category 5 hurricane. The ninth tropical storm, seventh hurricane, fifth major hurricane, and second Category 5 of the season, Hattie originated from an area of low pressure that strengthened into a tropical storm over the southwestern Caribbean Sea on October 27. Moving generally northward, the storm quickly became a hurricane and later major hurricane the following day. Hattie then turned westward west of Jamaica and strengthened into a Category 5 hurricane, with maximum sustained winds of 165 mph (270 km/h). It weakened to Category 4 before making landfall south of Belize City on October 31. The storm turned southwestward and weakened rapidly over the mountainous terrain of Central America, dissipating on November 1.