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Cyclone Vance was a tropical cyclone that struck Western Australia during the active 1998–99 Australian region cyclone season, and was also one of six tropical cyclones to form off the coast of Australia during that season. When making landfall the Learmonth Meteorological Office (35 km south of Exmouth) recorded the highest Australian wind gust of .〔Bureau of Meteorology (Tropical Cyclone Vance in Review ). March 2000. URL Accessed: 30 December 2006〕 The previous highest gust was at nearby Mardie during Cyclone Trixie of 1975.〔Bureau of Meteorology (BoM Report on Vance ). March 2000. URL Accessed: 19 July 2006〕 This record was surpassed in 2010 after a world record wind-gust of at Barrow Island during Cyclone Olivia in 1996 was declared official by the World Meteorological Organisation. Forming on 19 March 1999, in the Timor Sea, Vance then curved west-southwest where it recurved and struck the Gascoyne and Pilbara coasts of Western Australia on 22 March as a Category 5 cyclone on the Australian scale and dissipating the following day. Vance caused severe damage across the western coast of Australia. The hardest hit town was Exmouth where 70 percent of the buildings sustained severe damage. However, because of advance warnings there were no reports of fatalities.〔 Damage totaled $100 million (1999 USD).〔NCDC (1999) (NCDC Impact Report ) URL Accessed: 21 July 2006〕 ==Meteorological history== An area of low pressure formed on 16 March, six hundred miles northwest of Darwin, Australia. The storm then quickly reached tropical depression strength as it curved over the Northern Territory causing no damage.〔(Unisys Track of Vance ) URL Accessed: 19 July 2006〕 On 18 March, the tropical depression intensified and became Tropical Storm Vance west of Darwin. Interacting with a subtropical ridge, the storm moved westward and then southwestward where it reached Category 1 cyclone status on the 19th. The cyclone then continued southwestward, strengthening to a Category 5 storm overnight on 20 March with gusts of more than winds. Vance reached a pressure of 910 millibars (hPa) before curving to the south, heading towards the Exmouth Gulf.〔 Vance then made landfall near Exmouth on 22 March as a strong Category 4 cyclone. Moving inland, the cyclone then turned a more south-southeasterly direction as before weakening to tropical storm status. Vance then became extratropical the next day, with its extratropical remnants being felt as far east as Tasmania.〔〔(Gary Padgett report on Vance ) URL Accessed: 19 July 2006〕 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「Cyclone Vance」の詳細全文を読む スポンサード リンク
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