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1917 Nueva Gerona hurricane
The 1917 Nueva Gerona hurricane was the strongest Atlantic hurricane of the 1917 Atlantic hurricane season. The fourth tropical cyclone, second hurricane, and the second major hurricane of the season, it developed east-southeast of Martinique. It moved west-northwest, passing between Saint Lucia and Martinique. In the eastern Caribbean, it strengthened to a hurricane, and it struck the northern coast of Jamaica. It rapidly intensified to a strong Category 4 hurricane as it made landfall on the Isla de la Juventud and western Cuba. It turned northward in the Gulf of Mexico, and it moved ashore in Okaloosa County, Florida, with 115 mph (185 km/h) sustained winds.
Although effects were minor in the Lesser Antilles, the cyclone destroyed much of the banana crop in Jamaica. The western half of Cuba received significant damages to residences and agriculture. On the Gulf Coast of the United States, the hurricane caused timber losses, moved boats ashore, and damaged waterfront structures. The remnants of the storm also produced heavy precipitation over portions of Alabama. The cyclone was the most intense hurricane to strike the Florida Panhandle until 1995, but loss of life was minimal.
==Meteorological history==
Late on September 19, a tropical storm developed east of the Lesser Antilles. Originally, the cyclone was believed to have formed on September 20. On September 20, it steadily intensified, and the center moved through the northern Windward Islands. The system produced strong winds and rough seas in the Lesser Antilles.〔 On September 21, it attained maximum sustained winds of 75 mph (120 km/h), becoming the equivalent of a Category 1 hurricane.〔 It continued to strengthen as it crossed the Caribbean Sea on September 22, attaining winds of 100 mph (160 km/h).〔 Later, it made landfall northeast of Kingston, Jamaica, with 105 mph (170 km/h) winds on September 23. On September 24, it turned northwest and strengthened to the equivalent of a major hurricane near Grand Cayman Island.〔 The cyclone strengthened to an estimated peak intensity of 150 mph (240 km/h) on September 25, and it made landfall on the Isla de la Juventud, Cuba. The hurricane was classified as a marginal Category 3 hurricane prior to subsequent reanalysis, which determined that the cyclone was stronger.〔 An estimated central pressure of 928 mbar (27.40 inHg) was based on a peripheral measurement of 939 mbar (27.76 inHg) when the hurricane moved over the Isla de la Juventud.〔
In the Gulf of Mexico, the cyclone turned north on September 26, and it slowly weakened.〔 It passed 110 miles (180 km/h) southeast of New Orleans with 120 mph (195 km/h) winds on September 28.〔 Early on September 29, the hurricane made landfall near Fort Walton Beach as a marginal Category 3 hurricane on the Saffir-Simpson Hurricane Scale.〔 Originally, the Atlantic hurricane database listed the storm as a 100 mph (160 km/h) hurricane over northwest Florida.〔 It quickly weakened to a tropical storm over southeastern Alabama, and it merged with an extratropical frontal system in southern Georgia on September 30.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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