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Typhoon Babs was a powerful typhoon that struck the Philippines (where it was locally known as Typhoon Loleng) just days after Typhoon Zeb hit the same area. The seventh typhoon of the 1998 season, Babs formed on October 14 between the Philippines and Guam. The storm moved westward initially, failing to intensify initially due to the outflow from Typhoon Zeb to the northwest. Babs slowed and briefly turned to the south before advancing to the northwest, whereupon it rapidly intensified into a strong typhoon. On October 20, the official Japan Meteorological Agency (JMA) estimated peak 10 minute winds of 155 km/h (100 mph), while the unofficial Joint Typhoon Warning Center (JTWC) estimated peak 1 minute winds of 250 km/h (155 mph), making Babs an unofficial super typhoon. The storm struck the Philippine island of Catanduanes at that intensity and weakened slightly before hitting Luzon. Babs turned northward once in the South China Sea, later weakening due to unfavorable conditions and transitioning into an extratropical cyclone on October 27 in the Taiwan Strait. Damage was heaviest where Babs first made landfall along the Philippine island of Catanduanes. Torrential rainfall rose waters by 9 m (30 ft) along a river, which inundated houses up to their roofs. Heavy rainfall affected much of Luzon and the northern Philippines, causing widespread flooding and landslides that isolated towns. Strong winds, peaking at 260 km/h (160 mph) in Virac, Catanduanes, left widespread areas without power. There was also heavy crop damage, with 222,882 tonnes of rice destroyed. Babs damaged or destroyed 403,623 houses in the Philippines, with overall damage estimated at ₱6.787 billion (Philippine peso, $159 million United States dollars); the typhoon also killed 303 people. Later, the storm's high waves injured surfers in Hong Kong. Heavy rainfall affected Fujian, causing ¥280 million (Chinese yuan, $58 million USD) in damage and five deaths. Torrential rainfall in Taiwan, reaching in Yilan City, flooded towns and caused landslides; there were three deaths on the island. The remnants later affected the Japanese island of Okinawa with rainfall and high waves. ==Meteorological history== A tropical disturbance developed east-southeast of Guam on October 11, just four days after Typhoon Zeb originated in the same area. The American-based Joint Typhoon Warning Center (JTWC) issued a tropical cyclone formation alert on October 12, indicating development was imminent. However, the system did not develop into a tropical depression until 06:00 UTC on October 14, based on analysis from the Japan Meteorological Agency – the official warning center for the western Pacific Ocean. Three hours later, the JTWC began tracking the system as Tropical Depression 20W.〔 At that time, the storm had moved south of Guam and was passing north of Palau. The nascent depression moved generally westward toward the Philippines. Initially, development was hindered by the outflow from Typhoon Zeb, which had struck Luzon and was moving northward.〔 However, the depression was able to intensify into a tropical storm on October 15, at which time the JTWC named it ''Babs''. Later that day, the storm reached 1 minute winds of 85 km/h (50 mph),〔 and it entered the area of responsibility of PAGASA – the Philippine weather agency – which gave it the local name ''Loleng''.〔(【引用サイトリンク】date=1998-11-27 )〕 On October 17, a tropical upper tropospheric trough to the northeast weakened the subtropical ridge, causing Babs to slow and drift to the south; the same trough restricted outflow,〔 causing the circulation to become exposed from the convection.〔 The trough weakened and the shear decreased on October 18, allowing the storm to restrengthen.〔〔 On October 19, a ship in the proximity of Babs reported 10 minute winds of 96 km/h (60 mph), indicating that the storm was intensifying.〔 At 00:00 UTC that day, the JTWC upgraded the storm to typhoon status,〔 and the JMA followed suit 18 hours later.〔 Babs rapidly intensified subsequently as it developed a well-defined eye 15 km (9 mi) in diameter.〔 At 12:00 UTC on October 20, the JMA assessed that the typhoon reached peak 10 minute winds of 155 km/h (100 mph),〔 while the JTWC estimated peak 1 minute winds of 250 km/h (155 mph), making Babs an unofficial super typhoon.〔 The gale-force winds extended 335 km (205 mi) northeast from the center, while the strongest winds extended 75 km (45 mi) from the eye. Around the time of peak intensity, Babs made landfall on the Philippine island of Catanduanes, where a weather station recorded a minimum barometric pressure of in Virac.〔 However, the official lowest pressure from the JMA was .〔 The winds decreased slightly as Babs moved across Catanduanes, although it soon moved over open waters into Lamon Bay, where it struck Polillo Island. According to the JTWC, Babs had weakened to winds of 175 km/h (110 mph) on October 22 before quickly re-intensifying to winds of 215 km/h (130 mph) as it approached Luzon. At 18:00 UTC on October 22, Babs made landfall on Luzon about 45 km (30 mi) south of Baler, or 185 km (115 mi) south of where Zeb struck only eight days prior. The typhoon weakened further while crossing central Luzon, and it passed about 75 km (45 mi) north of Metro Manila before emerging into the South China Sea on October 23.〔〔 By that time, the JMA had downgraded Babs to a tropical storm, although the agency soon re-upgraded the storm to typhoon status.〔 For several days, Babs remained at the same intensity, sporting an eye with a wide area of gale-force winds. A trough gradually steered the storm toward the north, weakening the ridge.〔 The same trough caused an increase in wind shear that led to Babs weakening.〔 The storm reached its westernmost point on October 25 – about 275 km (170 mi) southeast of Hong Kong. Turning northeastward into the Taiwan Strait, even stronger wind shear caused Babs to fall apart, and the storm weakened into a tropical depression just off the southeast coast of China.〔 On October 27, the JMA declared Babs as extratropical. The remnants accelerated to the northeast, passing south of Kyushu before dissipating on October 30.〔 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 Babs (1998)」の詳細全文を読む スポンサード リンク
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