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2006 Central Pacific cyclone : ウィキペディア英語版 | 2006 Central Pacific cyclone
The 2006 Central Pacific cyclone, also known as 91C.INVEST or Storm 91C, was an unusual weather event of 2006. Forming on October 30, from a mid-latitude cyclone in the north Pacific mid-latitudes, it moved over waters warmer than normal. The system acquired some features more typical of subtropical or even tropical cyclones. However, as it neared western North America it fell apart. Moisture from its remains then caused substantial rainfall in British Columbia. The exact status and nature of this weather event is unknown, with meteorologists and weather agencies having differing opinions. ==Meteorological history==
A cut-off extratropical cyclone over the central north Pacific moved over an area of ocean with sea surface temperatures as high as 2 °C above normal for two days.〔(【引用サイトリンク】author=Gary Padgett )〕 By October 31 the system had acquired convection, a warmer-than-normal core,〔 and an eye-like feature.〔 During this time it had moved east, then northeast, and then northwest.〔 On November 1, the system had estimated winds of 100 km/h (60 mph) and its most developed convection. After that, it slowly weakened, looped counter-clockwise, and headed east towards the west coast of North America. On November 2, wind shear started taking its toll, and all convection was gone by the next day, when it was located roughly 520 mi (840 km) off the coast of Oregon.〔 This system's center of circulation passed south of observation buoy 46637 on November 1. The buoy's lowest pressure reading was 989 mb/hPa. Other buoys indicated that a rather large area of low pressure was associated with the system. Buoy 46637 was not at the system's center of circulation, so it is possible that this system had a lower minimum pressure than was actually measured.〔
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「2006 Central Pacific cyclone」の詳細全文を読む
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