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Severe Tropical Cyclone Steve was a tropical cyclone that affected northern Australia from 27 February 2000 until 11 March 2000. Cyclone Steve was noted for its longevity and traversal of northern and western Australia. It impacted on regions of northern Queensland, the Northern Territory and Western Australia before clearing to the south of the continent. Steve is the first known Australian cyclone to make four distinct landfalls in the country.〔(【引用サイトリンク】title=MONTHLY GLOBAL TROPICAL CYCLONE SUMMARY )〕 ==Meteorological history== A tropical low formed in the Coral Sea to the east of Willis Island on 25 February 2000. The system rapidly intensified to become Tropical Cyclone Steve at around 7am Australian Eastern Standard Time (AEST) (UTC+10) on the 27 February 2000. The cyclone crossed the Queensland coast as a Category 2 system on 27 February to the north of Cairns at around 7pm AEST. Steve weakened slowly over land and was downgraded to a tropical low on 28 February. The low tracked westward and re-intensified to tropical cyclone strength over the Gulf of Carpentaria on the same day at around 10pm AEST. The cyclone passed over Mornington Island in the southern Gulf of Carpentaria and crossed the Northern Territory coast north of Port McArthur on 1 March as a Category 1. The cyclone weakened back to a tropical low again, but maintained a strong low to middle level circulation as it crossed the base of the Top End of the Northern Territory. The low moved just south of the Joseph Bonaparte Gulf into the Kimberley region of Western Australia and reformed once again into a tropical cyclone just west of Broome on 5 March at 1pm Australian Western Standard Time (AWST) (UTC+8). Cyclone Steve moved in a west southwest direction parallel to the Pilbara coast and strengthened further during the day and was upgraded to a Category 2 system early on 6 March. The cyclone deepened to a pressure of 975 hPa during the day. Continuing on its path to the southwest, Steve passed north of Port Hedland and Karratha on 6 March, before crossing the Pilbara coast near Mardie around midnight on 6 March (Steve's third landfall). The system was again downgraded to Category 1 as it moved inland. At around midnight on 7 March, Steve again moved offshore about north of Carnarvon and moved southwards along the coast. However, the system did not intensify further beyond Category 1 and made its final (fourth) landfall at around midnight on 9 March east of Denham. Steve then continued to track to the south-east and increased in speed across southern parts of Western Australia during the 10 and 11 March and becoming extra-tropical, before moving offshore for the final time to the east of Esperance late on 11 March and over the waters of the Great Australian Bight. 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 Steve」の詳細全文を読む スポンサード リンク
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