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Typhoon Mike, known in the Philippines as Typhoon Ruping, was the second strongest typhoon, behind Typhoon Flo, and the deadliest typhoon of the 1990 Pacific typhoon season as it crossed the Philippines in November. Forming from an area of persistent convection over the Caroline Islands, Mike headed westward. Early on the 8th, the depression strengthened to Tropical Storm Mike near Yap. Mike became a typhoon early on November 9, the 18th of the season. On November 10, the typhoon rapidly intensified, reaching peak winds of 165 mph later that day. In a 48-hour period, the typhoon deepened 99 millibars to a pressure of . Mike weakened shortly before land interaction and slammed over the eastern Philippines as a typhoon on November 12. Mike reached a secondary peak of winds on November 14. However, interaction with Vietnam again weakened it to a minimal typhoon. Vertical shear increased, weakening Mike to a tropical storm on the 16th. Early the next day, the storm passed over western Hainan Island, and degraded to a tropical depression that night. After a brief passage over the Gulf of Tonkin Mike hit southern China, then dissipated there on November 18. A total of 748 people were either killed or reported missing across the Philippines. Damage in the country amounted to $388.5 million, with agriculture accounting for the majority. ==Meteorological history== An area of persistent convection over the Caroline Islands was first noted in the Significant Tropical Weather Advisory on November 6. As it headed westward, its outflow rapidly improved, with banding and a more circular cloud pattern. The organization continued, and it was upgraded to Tropical Depression 27W on the 7th. Early on the 8th, the depression strengthened to Tropical Storm Mike near the island of Yap.〔(【引用サイトリンク】Joint Typhoon Warning Center">date=November 1990 )〕 Mike continued its westward movement and its intensification rate, and became a typhoon early on November 9, the 18th of the season. At this time, a weakness in the subtropical ridge, which kept the storm on its westward movement, was bring Mike northward. This did not occur, and Mike kept its persistent westward motion. On November 10, the typhoon rapidly intensified, reaching peak winds of 165 mph later that day. In a 48-hour period, the typhoon deepened 99 millibars to a minimum central pressure of .〔 Mike retained its intensity of for a day as it approached the Philippines. Fortunately for the archipelago, the combination of an eyewall replacement cycle and land interaction to its west weakened the super typhoon. Initially, Mike was forecast to move west northwest and make landfall over Metro Manila, Southern Luzon, and Bicol region, but Mike slammed over the eastern Philippines as a typhoon on November 12. The typhoon further weakened to an typhoon while crossing the islands, but in the South China Sea, conditions favored slight strengthening.〔 Mike reached a secondary peak of winds on November 14, but land interaction with Vietnam again weakened it to a minimal typhoon. The forecast break in the subtropical ridge finally occurred on the 15th, causing a northwest motion. Vertical shear increased, weakening Mike to a tropical storm on the 16th. Early the next day, the storm passed over western Hainan Island, and degraded to a tropical depression that night. After a brief passage over the Gulf of Tonkin Mike hit southern China where it dissipated on November 18.〔 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 Mike」の詳細全文を読む スポンサード リンク
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