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Typhoon Rananim, known in the Philippines as Typhoon Karen, was the strongest typhoon to make landfall on the Chinese province of Zhejiang since 1956. It formed on August 6, 2004, intensifying into a tropical storm on August 8. Rananim gradually intensified, initially moving northward before turning to the northwest and attaining typhoon status. After developing a small eye, the typhoon attained peak winds of 150 km/h (90 mph) as it passed between Taiwan and Okinawa. On August 12, Rananim moved ashore in China, and it dissipated three days later. The name Rananim means "hello" in the Chuukese language.〔 Impact outside of China was minimal and largely limited to heavy rains, although one death was reported in Taiwan. In the country, strong winds and heavy rainfall left heavy damage near the coast, as well as to farms further inland. Rananim destroyed 64,300 houses and damaged another 125,000. The typhoon affected 75 counties, affecting 18 million people, and overall damage was estimated at ¥20.1 billion ($2.44 billion 2004 USD, $ USD), primarily in Zhejiang. There were 168 deaths in China, which caused the name Rananim to be retired from the naming list. ==Meteorological history== The origins of Typhoon Rananim were from an area of convection that persisted west-northwest of Guam in early August. The system tracked generally westward in an area of moderate wind shear, maintaining a weak circulation center. On August 6, the Japan Meteorological Agency (JMA) estimated the system developed into a tropical depression. Shortly before that time, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) initiated advisories on the system, giving it the name Karen. Further convective organization occurred as the circulation consolidated, and the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert late on August 6. The next day, the agency initiated advisories on Tropical Depression 16W about 780 km (485 mi) east of the Philippines island of Luzon. Subsequently, the depression maintained a northward track, due to its location along the northwest periphery of a near-equatorial ridge, as well as the presence of a tropical upper tropospheric trough. Although the circulation was broad, the winds intensified enough for the JMA to upgrade the depression to Tropical Storm Rananim on August 8.〔 Upon intensifying into a tropical storm, Rananim had a better-defined circulation than earlier in its duration; however, the convection was displaced from the center. The structure gradually organized, with increasing outflow and convective symmetry. On August 9, the storm turned toward the northwest due to a building ridge the northeast.〔 At 0600 UTC on August 10, Rananim intensified into a typhoon about 715 km (445 mi) east-southeast of Taiwan.〔 Steady strengthening continued, and the storm passed about 365 km (225 mi) southwest of Okinawa early on August 11.〔 Shortly thereafter, Rananim left the PAGASA area of warning responsibility.〔 A small eye became evident on satellite imagery, and late on August 11 the JMA estimated the typhoon attained peak winds of 150 km/h (90 mph). The JTWC, however, assessed Rananim as intensifying slightly more despite decreased outflow, reaching peak winds of 165 km/h (105 mph).〔 After passing north of Taiwan, Rananim made landfall at peak intensity around 1300 UTC on August 12, near Wenling in Zhejiang province in China. The China Meteorological Administration reported that the typhoon was the strongest to hit Zhejiang since Typhoon Sally in 1956.〔 Moving over land, the typhoon quickly weakened to tropical storm status as it turned toward the west. Early on August 13, the JMA downgraded Rananim to a tropical depression and issued the last warning; by that time, the circulation was over Jiangxi.〔 The depression lasted another two days before dissipating over northwest Hunan.〔 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「Typhoon Rananim」の詳細全文を読む スポンサード リンク
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