The 1780 Atlantic hurricane season ran through the summer and fall in 1780. The 1780 season was extraordinarily destructive, and was the deadliest Atlantic hurricane season in recorded history, with over 28,000 deaths. Four different hurricanes, one in June and three in October, caused at least 1,000 deaths each; this event has never been repeated, and only in the 1893 and 2005 seasons were there two such hurricanes. The season also had the deadliest Atlantic hurricane of all time, the Great Hurricane of 1780. Only one of the known storms was not a hurricane. Landfalling storms affected the Lesser Antilles, Puerto Rico, the Dominican Republic, Jamaica, Cuba, Bermuda, Louisiana, Georgia, Florida, and the New England states. Context This destructive season should be seen against a backdrop of the American Revolution, which involved hostilities in the Caribbean by the fleets of Spain, France and the Dutch Republic operating against British fleets with the concomitant greater risk of loss of life due to increased exposure of warships and transports to hazardous weather conditions. This critical coincidence is at least partially responsible for the unprecedented losses of life inflicted, especially in the three fierce hurricanes that struck in quick succession during October. Systems San Antonio Hurricane The San Antonio Hurricane is also known as the St. Lucia Hurricane. On June 13, a hurricane "caused deaths and losses" on Puerto Rico, after having also struck St. Lucia, where it killed around 4,000 to 5,000 people. It later went on to the Dominican Republic. Louisiana Hurricane New Orleans experienced a powerful hurricane on August 24, with winds gusting over 160 mph. The hurricane completely destroyed 39 of the 43 buildings on Grand Isle, Louisiana. The eye then passed over New Orleans and severely damaged structures in what is now known as the French Quarter. The hurricane also caused harvest-ruining crop damage, severe flooding, and tornadoes across southeast Louisiana. It is believed that the hurricane killed around 25 people. St. Kitts Tropical Storm On August 25, St. Kitts in the Leeward Islands was struck by a storm. Savanna-la-Mar Hurricane A strong storm formed in the southern Caribbean Sea on October 1. Shortly after, it sank the British transport ship Monarch with all hands, including several hundred Spanish prisoners. The hurricane began to move northwest towards Jamaica, where it destroyed the port of Savanna-la-Mar on October 3. Many of the town's residents gathered at the coast to