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Typhoon Nancy, known in the Philippines as Typhoon Weling, was a destructive typhoon that moved through Vietnam and the Philippines during October 1982. The typhoon originated from an area of convection and was first classified as a tropical cyclone on October 10. The system attained gale-force winds the next day, and slowly deepened thereafter. Although Nancy initially moved west, the system maintained a general westward course for much of its duration, striking Luzon on October 14 at peak intensity of 215 km/h (130 mph). It weakened to tropical storm strength overland, but re-intensified to typhoon intensity over the South China Sea. Nancy hit northern Vietnam on the October 18, and weakened almost immediately thereafter, before dissipating on October 20 inland over Vietnam. In the Philippines, damage was the worst in Cagayan and Isabela. In the former, 4,378 homes were destroyed while 2,250 houses were destroyed in the latter. Nationwide, 96 people were killed and 30 others were listed as missing. Additionally, 186 were injured. A total of 12,464 homes were destroyed while 34,111 others were damaged. Moreover, 301,431 persons were "affected" by the storm, or 51,532 families. Damage totaled to $56 million (1982 USD), including $18 million from infrastructure and $26 million from agriculture. While strking Vietnam, the typhoon killed 30 people. Around 72,000 homes were destroyed, leaving 125,000 people homeless. Throughout the country, 450,000 acres (182,110 ha) of rice were destroyed. ==Meteorological history== Typhoon Nancy originated from a large area of convection situated in the middle of the Pacific Ocean, which began to consolidate on October 8 within a favorable environment aloft. The convection separated from an upper-level low embedded within a tropical upper-tropospheric trough (TUTT). Later that day, the area of convection degenerated into a "random area of cloudiness." The TUTT drifted west while the Joint Typhoon Warning Center (JTWC) reported that a tropical depression formed within the area of convection that was now located south of the TUTT.〔 Early on October 10, the Japan Meteorological Agency (JMA) started watching the system. At 0730 UTC, a Tropical Cyclone Formation Alert was issued by the JTWC while located north of Guam. Following an increase in reorganization, a Hurricane Hunter flight indicated winds of early on October 11.〔 Later that morning, the JMA upgraded the cyclone into a tropical storm. Following Hurricane Hunter reports, which indicated winds of and a barometric pressure of . Based on this, the JTWC upgraded the depression into a tropical storm and named it Nancy. Initially, the JTWC expected the system to track northwards and eventually re-curve, but this did not occur. Nancy maintained its intensity for 24 hours while tracking westward before rapidly turning west due to a change in steering patterns.〔 Meanwhile, the Philippine Atmospheric, Geophysical and Astronomical Services Administration also monitored the storm and assigned it with the local name ''Weling''.〔〔 Midday on October 12, the JMA upgraded Nancy into a severe tropical storm. At 0000 UTC on October 13, the same agency classified Nancy into a typhoon.〔 Later that day, the JTWC followed suit. By midday on October 14, the JTWC predicted Nancy to turn northwest into China due to the anticipation of a mid-latitude trough south of South Korea deepening.〔 At 0600 UTC, the JMA reported that Nancy reached its peak intensity of and a minimum pressure of .〔 Meanwhile, the JTWC reported peak intensity of 215 km/h (130 mph), a Category 4 hurricane equivalent on the United States-based Saffir-Simpson Hurricane Wind Scale (SSHWS). Six hours later, Typhoon Nancy moved ashore in northern Luzon〔 while still at peak intensity.〔 The storm rapidly weakened over land. Although the JTWC downgraded Nancy to a tropical storm,〔 the JMA kept the storm at typhoon intensity throughout landfall.〔 After entering the South China Sea, the JTWC upped Nancy to typhoon status as it entered an area with favorable mid- to upper-level winds.〔 Continuing to gain strength, the JMA raised the intensity of Nancy to on October 16.〔 Shortly thereafter, Nancy crossed Hainan Island.〔 After weakening slightly overland, the storm resumed strengthening once offshore. According to the JMA, Nancy attained a secondary peak, with winds of at 0600 UTC on October 17.〔 The tropical cyclone moved on a slow northwesterly track along the southern periphery of the ridge. While passing slightly north of the Paracel Islands,〔 the JTWC estimated winds of , equivalent to a high-end Category 1 hurricane on the SSHWS. Late on October 18, Nancy made landfall along the coast of Vietnam, just north of Vinh.〔 At the time of landfall, both agencies estimated that Nancy was a typhoon.〔〔 Within hours, the convection ceased,〔 though the JMA kept monitoring the system until October 20, when it finally dissipated.〔 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 Nancy (1982)」の詳細全文を読む スポンサード リンク
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