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Tropical Storm Lucille was the first tropical cyclone to have its name retired in the Western Pacific basin. Lucille was identified as a weak tropical depression on May 25, 1960, to the east of the Philippines. Tracking northwestward, the system failed to develop and warnings on it were discontinued on May 27. At the same time, a second system began organizing along the west coast of Luzon. The two systems ultimately merged into one over the Philippines between May 28 and 29. Now tracking northeastward, the system re-intensified and became a tropical storm on May 30. Lucille attained its peak intensity later that day with winds of 85 km/h (50 mph). As it accelerated over open waters, the system brushed the islands of Iwo Jima and Chichi-jima before transitioning into an extratropical cyclone on June 1. The remnants of Lucille were last noted on June 4 near the International Date Line. Between May 27 and 29, heavy rains fell across much of Luzon as Lucille developed. These rains, amounting to in the suburbs of Manila, triggered destructive floods that left some areas under of water. The worst of the floods took place during the overnight hours of May 28 to 29. During that time, hundreds of homes were swept away and an estimated 300–500 people, including at least 80 children, were killed. Monetary losses from the floods exceeded $2 million. ==Meteorological history== On May 24, 1960, a possible area of low pressure was identified to the west of Koror in the Republic of Palau. Tracking generally to the northwest, the system gradually developed. Despite only having winds around 30 km/h (15 mph), it was classified as a tropical depression early the next day and assigned the name ''Lucille'' by the Joint Typhoon Warning Center (JTWC). Around the same time, a second, less organized low pressure system developed off the west coast of Luzon, Philippines. That system remained almost stationary over the South China Sea as Lucille accelerated northwestward. Early on May 27, the JTWC issued their final advisory on the depression as it approached the Philippines. After degenerating, the remnants of Lucille moved over the Visayas.〔 Shortly after the JTWC issued their final advisory on Lucille, the Japan Meteorological Agency (JMA) began monitoring the system near Luzon as a tropical depression. By May 28, radiosonde data from Clark Air Base in Luzon indicated that the second system acquired a closed circulation at the 500 mb level and began moving northeastward. While crossing the northern Philippines, the two systems merged and became a single cyclone, retaining the name Lucille. During its passage of the country, winds up to 63 km/h (39 mph) were reported in Manila. Once back over open waters, the system intensified as it accelerated northeastward, attaining tropical storm intensity early on May 30.〔〔 Tropical Storm Lucille attained its peak intensity late on May 30 with winds of 85 km/h (50 mph) and an estimated barometric pressure of 985 mbar (hPa; 29.09 inHg).〔 At this time, the China Meteorological Administration assessed Lucille to have been a stronger system, attaining typhoon status with two-minute sustained winds estimated at 125 km/h (78 mph).〔 Around 1700 UTC on May 31, the storm tracked approximately 65 km (40 mi) west of Iwo Jima. Roughly five hours later, it moved within 15 km (10 mi) of Chichi-jima where a pressure of 992 mb (hPa; 29.30 inHg) was measured. Sustained winds on Chichi-jima reached 95 km/h (60 mph); however, these were determined to be unrepresentative of Lucille's actual intensity due to natural funneling on the island. On June 1, the system transitioned into an extratropical cyclone as it turned west-northwestward and continued over open waters.〔 The remnants of Lucille were last noted by the JMA on June 4 as it crossed the International Date Line.〔 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「Tropical Storm Lucille」の詳細全文を読む スポンサード リンク
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