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The meteorological history of Hurricane Gustav spanned eleven days, from August 25 to September 4, 2008. The tropical disturbance which eventually spawned Hurricane Gustav gathered on August 16, southwest of the Cape Verde islands, but was slow to develop as it trekked west across the Atlantic. Upon reaching the warm waters of Caribbean Sea it began to organize and became a tropical depression on August 25. It quickly strengthened to a tropical storm, and then a hurricane, before making landfall on Haiti's southwest peninsula. Gustav was severely disrupted by Hispaniola's mountains and stalled, disorganized, in the Gulf of Gonâve between August 26 and 27. Deep convection reformed the storm's center southwest of Haiti, near Jamaica's east coast. Under the influence of a mid-level ridge that extended from the Gulf of Mexico to the western Atlantic Ocean, Gustav picked up a westward motion. It was briefly disrupted by Jamaica as it passed over the mountainous island but rapidly strengthened when it moved over open water once again. Reaching Category 4 strength less than 24 hours after having been a tropical storm, Gustav brushed the Isle of Youth and made landfall on Cuba's western's peninsula. Disrupted by mountains once again, Gustav never regained its former strength. Briefly traveling over a warm eddy of the Gulf Stream's loop current it encountered moderate wind shear and cooling sea surface temperatures. Fluctuations in its internal structure and visible appearance did not counter the storm's general weakening trend, and Hurricane Gustav made its final landfall as a Category 2 hurricane near Cocodrie, Louisiana on September 1. Moving inland, the storm quickly weakened but persisted as a significant tropical depression until it was adsorbed by a frontal boundary on September 5. ==Formation== On August 18, 2008, a tropical wave which had left the coast of Africa five days previously, developed into a significant low pressure area about west-southwest of the Cape Verde islands. This wave moved westward across the Atlantic in conditions that were not favorable for development. As it began to approach the Windward Islands conditions improved and it showed some signs of organization, but no circulation. Upon reaching the windward islands on August 23, bringing showers, thunderstorms, and generally squally weather, wind shear over the system decreased and atmospheric conditions improved. Over the eastern Caribbean Sea, about south of Santo Domingo, a low level circulation began to form. Hours later well-defined curved bands and an improving circulation at the surface warranted that the system be designated a tropical depression. The depression formed a small inner wind core in diameter〔 which allowed it to rapidly organize, and on the afternoon of August 25 it was upgraded to a tropical storm and first given the name ''Gustav''. A renewed period of disorganization proved to be very short lived, and that night a well-defined eye formed. This eye was accompanied by strengthening as the storm continued to move northwest towards Haiti. Before reaching the island, Gustav's strengthening pattern raised it to hurricane strength. Its prominent and organizing central dense overcast belied persistent strengthening which continued until Hurricane Gustav made landfall on Haiti's southwest peninsula about west of Jacmel around 1730 UTC on August 26, with winds of 〔 and a minimum central pressure of 981 mbar (28.97 inHg).〔 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「Meteorological history of Hurricane Gustav」の詳細全文を読む スポンサード リンク
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