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Hurricane Joyce caused minor impact in the ABC and Windward islands during late September and early October 2000. The fourteenth tropical cyclone, tenth named storm, and sixth hurricane of the season, Joyce developed from a tropical wave located southwest of Cape Verde on September 25. Only twelve hours after becoming a cyclone, the depression was upgraded to Tropical Storm Joyce early on September 26. Joyce continued to strengthen and became a hurricane by September 27. On the following day, Joyce peaked with winds of 90 mph (150 km/h) on September 28. After peak intensity on September 28, unfavorable conditions caused Joyce to become disorganized and weaken. Late on September 29, Joyce was downgraded to a tropical storm while centered well east of the Lesser Antilles. In contrast with predictions, Joyce continued to weaken and became a tropical depression on October 1 while crossing through the southern Windward Islands. Early on the following day, Joyce degenerated into a tropical wave over the southeast Caribbean Sea. The remnants were monitored for regeneration, but never developed back into a tropical cyclone. Overall, impact from Joyce was minimal, limited to mainly rainfall and near-tropical storm force winds in Trinidad and Tobago and Barbados. The remnants of Joyce also caused similar effects on the ABC islands and Dominican Republic, which resulted in minor damage. ==Meteorological history== Hurricane Joyce originated from a tropical wave that emerged from the coast of Africa on September 22. Influenced by a powerful ridge that had developed in the wake of Hurricane Isaac, the wave traveled a brisk and slightly undulating westward path at . It would never change from that general path. While in the deep tropics of the open Atlantic, the wave began to show indications of a closed circulation. Satellite data was ambiguous, but the evidence favored the existence of a tropical cyclone, and the system was designated Tropical Depression Fourteen. At the next advisory, the cyclone was upgraded and named "Joyce", although satellite data was still ambiguous about whether Joyce even had a circulation.〔 Joyce headed westward and steadily intensified.〔 Deep convection and outflow improved, and Joyce gradually developed an eye. On September 27, it was upgraded to a hurricane with cold cloud tops. Early on September 28, Joyce peaked in intensity with winds of 90 mph (150 km/h), a central pressure of , and a fleeting "pinhole" eye. At the time, it was located about midway between Africa and the Lesser Antilles.〔 Wind shear then increased, partially exposing Joyce's center of circulation, although bursts of convection remained.〔 Convection and organization slowly deteriorated,〔 and became, early on September 29, "pretty crummy" and without a well-defined center of circulation. Joyce did manage to remain at hurricane intensity through this time.〔 Due to the disorganization, it was downgraded to a tropical storm later that day. Despite occasional bursts of convection, Joyce weakened into a tropical depression as it crossed the Windward Islands on October 1. The weakening was confirmed by Hurricane Hunter reconnaissance flights. After crossing the Windward Islands, and entering the southeastern Caribbean Sea, Joyce unexpectedly degenerated into an open wave.〔 Although Joyce's remnants were monitored for regeneration, any possible redevelopment never materialized. Joyce dissipated in an area of low wind shear and warm sea surface temperatures. The National Hurricane Center attributed the weakening to dry air from the Sahara.〔 The dry air may have been caused by a lack of southwesterlies bring moisture from equatorial areas, and continental influence from South America.〔 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 Joyce (2000)」の詳細全文を読む スポンサード リンク
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