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Hurricane Isidore was the ninth named storm and the second hurricane in the 2002 Atlantic hurricane season. Isidore was the fifth of eight named storms to occur in September. The tropical cyclone peaked as a Category 3 hurricane, causing damage as well as four fatalities in Jamaica, Cuba, Mexico, and the United States.〔Lixion Avila. (TROPICAL DEPRESSION TEN DISCUSSION NUMBER 1. ) Retrieved on 2008-02-28.〕 Isidore is noted for threatening to strike the northern Gulf Coast as a Category 4 hurricane, but instead striking as a moderate tropical storm due to a track change that brought the storm over the Yucatán Peninsula for over a day, which significantly weakened the cyclone. Its primary impact was the heavy rainfall which fell across southeast Mexico and from the central United States Gulf coast into the Ohio Valley.〔David M. Roth. (Black Background, color-filled rainfall graphic for Isidore. ) Retrieved on 2008-02-28.〕 ==Meteorological history== On September 9, a tropical wave moved off the coast of Africa. Despite moving through a dry environment, its convection became organized as an anticyclone developed over the wave. On September 14, convection was well-organized enough around a small closed wind circulation to classify the system as Tropical Depression Ten near Trinidad and Tobago.〔 Land interaction from Venezuela later weakened the depression back to a tropical wave. The wave continued west-northwestward through the Caribbean, and redeveloped into a tropical depression on September 17 while south of Jamaica.〔James Franklin. (TROPICAL DEPRESSION TEN DISCUSSION NUMBER 6. ) Retrieved on 2008-02-28.〕 Embedded within a weak steering current, it drifted to the northwest, and strengthened into Tropical Storm Isidore on September 18 near Jamaica.〔Lixion Avila. (Tropical Cyclone Report: Hurricane Isidore 14 - September 27, 2002. ) Retrieved on 2015-05-26.〕 After grazing the island, it quickly intensified to a hurricane late on September 19 while south of Cuba. Isidore's maximum sustained winds reached near the Isle of Youth, and weakened slightly to an hurricane as it made landfall on Cabo Frances late on September 20.〔 The hurricane crossed the island, then slowed as it moved westward across the Gulf of Mexico. Favorable conditions aloft with warm water temperatures allowed Isidore to quickly intensify to a peak of winds on September 21.〔Stacey Stewart. (HURRICANE ISIDORE DISCUSSION NUMBER 22. ) Retrieved on 2008-03-27.〕 Despite Dvorak satellite estimates of , reconnaissance aircraft indicated Isidore remained a Category 3 hurricane, with pressures dropping to , typical of a Category 4 hurricane.〔Stacy Stewart. (HURRICANE ISIDORE DISCUSSION NUMBER 26. ) Retrieved on 2008-02-28.〕 It is the lowest minimum pressure ever observed for an Atlantic hurricane which did not exceed Category 3 intensity.〔 With nearly ideal conditions for development, Isidore was forecast to reach winds of over the northern Gulf of Mexico.〔Stacey Stewart. (HURRICANE ISIDORE DISCUSSION NUMBER 23. ) Retrieved on 2008-02-28.〕 High pressures to its north forced it southward, and Isidore made landfall at Telchac Puerto in Yucatán as a major hurricane on September 22. It weakened rapidly as it nearly stalled over Yucatán, and was only a minimal tropical storm after being inland for 30 hours. The inner core of convection collapsed while over southeast Mexico, and upon moving northward and reaching the Gulf of Mexico again, it was a large but weak tropical storm. Conditions favored significant strengthening, but Isidore did not redevelop central convection until reaching the northern Gulf of Mexico. The strengthening system hit Grand Isle, Louisiana on September 26 as a tropical storm, but weakened quickly into a tropical depression after moving inland. The system raced to the northeast, and became an extratropical cyclone on September 27 before becoming absorbed in a frontal zone over Pennsylvania that night.〔Andrew Orrison. (PUBLIC ADVISORY NUMBER 47 FOR TROPICAL DEPRESSION ISIDORE. ) Retrieved on 2008-02-28.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hurricane Isidore」の詳細全文を読む スポンサード リンク
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