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Typhoon Chebi, known in the Philippines as Typhoon Queenie, is a strong typhoon that impacted Luzon during November 2006. Chebi is the third typhoon since Typhoon Xangsane to hit the country destructively. The 30th tropical depression developed east of the Mariana Islands on October 31 as a weak disturbance. The system was dubbed into a tropical depression on November 8, until both the JMA and PAGASA upgraded it to a tropical storm on November 9. Chebi rapidly intensified to a Category 4 typhoon the next day and made landfall over northern Philippines on November 11. The system finally dissipated near Hong Kong and Vietnam on November 14. The name Chebi is a misspelling for Jebi and was corrected in 2007, which means swallow in Korean. ==Meteorological history== An area of disturbed weather developed east of the Mariana Islands on October 31, and moved west-northwestward over the next week without any increase in organization due to an unfavorable environment, until November 6, when it encountered more favorable conditions, and the Japan Meteorological Agency declared it a tropical depression on November 8. The Joint Typhoon Warning Center issued a Tropical Cyclone Formation Alert on the system later that day, and PAGASA named the system Tropical Depression ''Queenie'' shortly after. The JTWC classified it as Tropical Depression 23W early on November 9. According to the JTWC, lack of equatorial outflow prevented rapid intensification of the system. Later that day, the JMA upgraded it to a tropical storm named it ''Chebi''. The JTWC and PAGASA both followed suit later that day. In the same time, Chebi started to underwent a 24-hour period of rapid deepening, with an 85 millibar drop until mid of November 10. Early on November 10, the JMA upgraded Chebi to a severe tropical storm as it continued to move west towards the Philippines, following a similar track as Typhoon Cimaron earlier in the season. Just hours later, the JMA upgraded Chebi from severe tropical storm with 10-minute sustained winds of 55 knots to a typhoon with winds of 95 knots, with a pressure decrease of 40 hPa over three hours. The JTWC followed suit, upping Chebi from a tropical storm with 1-minute sustained winds of 55 knots to a Category 4-equivalent typhoon. Nearly the same time after that, Chebi reached its peak intensity with 10-minute sustained winds of 175 km/h (110 mph); 1-min maximum sustained winds of 230 km/h (145 mph) and a minimum barometric pressure of 925 millibars. PAGASA raised Public Storm Warning Signal No. 4 for three provinces in Luzon, making Chebi the second storm (Typhoon Cimaron served as the first one that year) in as many weeks to force a Signal #4. After rapidly deepening, Chebi slightly weakened as it approached the Philippines. It made its first landfall near Casiguran, Aurora early on November 11, crossed the Lingayen Gulf and its second landfall on Barangay Lucap, Alaminos City about 8 hours later. Encountering dry air entrainment and increased vertical wind shear in the South China Sea, Chebi began to gradually weaken to a severe tropical storm on November 12. It continued to weaken, turning northwards towards Hainan, and was downgraded to a tropical storm the next day. On November 14, the JMA issued its last advisory on the dissipating tropical depression. The JTWC issued its final warning later that same day as Chebi dissipated under the strong shear. 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 Chebi」の詳細全文を読む スポンサード リンク
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