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Typhoon Andy, known in the Philippines as Typhoon Iliang, was an intense tropical cyclone that made landfall in Taiwan. Andy formed along the northern edge of the monsoon trough south of Guam on July 22, 1982. It became a tropical storm the next day, although this system was initially poorly organized. Andy moved steadily west during the first few days of its life. After looping south of Guam, the cyclone moved northwest and strengthened. Andy turned westward near the 18th parallel on July 25. The system became a strong typhoon for a prolonged period on July 27 and July 28 while attaining a peak intensity of . However, the typhoon struck southern Taiwan on July 29. Continuing westward through the Formosa Strait, the storm made its final landfall in southern China on July 30 and dissipated inland two days later. During its formative stages, the typhoon brought high waves to Guam, resulting in one death. Twelve families were also left homeless. After passing near Taiwan, Andy brought strong winds, which resulted in 13 deaths. Government offices, schools and airports were closed. At least 60 fishing boats in harbors were badly damaged or wrecked due to strong winds. A total of 300 poer poles were brought down; consequently, nearly a quarter of Taiwan residents lost power at the height of the storm. After moving ashore in China, Andy brought heavy rains to nearby Hong Kong. ==Meteorological history== Typhoon Andy originated from a monsoon trough south of Guam in tandem with Typhoon Bess. Despite strong wind shear, three areas of disturbed weather soon developed. The westernmost of the three drifted westward and remained poorly defined. Late on July 21, a Tropical Cyclone Formation Alert (TCFA) was issued for the middle system following a drop in barometric pressure and an increase in organization. Around this time, the Japan Meteorological Agency (JMA) started watching the cyclone. On July 22, the JMA upgraded the system into a tropical storm. During the evening hours of July 22, Hurricane Hunters found winds of and a minimum pressure of . Based on this, the Joint Typhoon Warning Center (JTWC) classified the system as a tropical storm and named it Andy. Despite the initial overall lack of organization,〔 Andy slowly gained strength. However, the low-level circulation was initially poorly defined and difficult to find via weather satellite imagery. While passing around south of Guam,〔 the JMA upped Andy into a severe tropical storm.〔 After performing a small loop,〔 Andy accelerated northwest south of a subtropical ridge.〔 According to the JMA, Andy attained typhoon intensity midday on July 24.〔 For the ensuing 24 hours, intensification was slight.〔 Thereafter, Andy turned west and entered a more favorable environment for intensification.〔 On July 25, the JMA placed the intensity of the storm at . After briefly leveling off in intensity, Andy continued to gain strength, and during the morning hours of July 26, the JMA reported winds of . The next day, the JMA estimated that Andy reached peak intensity, with winds of , and subsequently noted that Andy attained its minimum barometric pressure of .〔 Later that day, the JTWC estimated a peak intensity of , equivalent to a Category 4 hurricane on the United States-based Saffir-Simpson Hurricane Wind Scale (SSHWS).〔 Shortly after its peak, Andy began to slowly weaken.〔 At 1200 UTC on July 28, the JTWC reduced the intensity of the typhoon to .〔 However, on July 29, the JMA lowered the intensity of the cyclone to ,〔 even though the JTWC kept the intensity over until landfall, which occurred later that day along the southeastern quadrant of Taiwan. Despite briefly emerging into the Formosa Strait,〔 the JMA downgraded Andy into a severe tropical storm just before landfall in Southern China.〔 On July 30, the JTWC stopped watching Andy inland over the mountains terrain of southeastern China.〔 Two days later, the JMA followed suit.〔 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 Andy (1982)」の詳細全文を読む スポンサード リンク
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