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Tropical Depression Twelve-E (2011)
Tropical Depression Twelve-E was a short-lived but deadly tropical cyclone that dropped heavy rainfall across large portions of Central America in October 2011. It formed from a tropical disturbance roughly hundred miles south of Mexico, which fluctuated in organization for several days. By October 12, the National Hurricane Center (NHC) deemed the associated low pressure-area well defined enough for it to be considered a tropical depression. After attaining peak wind speeds of 35 mph (55 km/h), the depression moved ashore between Salina Cruz, Oaxaca, and Arriaga, Chiapas. It caused significant flooding and at least 30 fatalities in the region.
==Meteorological history==
Late on October 6, an area of disturbed weather formed a few hundred miles south of the Mexican coast. The disturbance quickly became more organized and two days later, the National Hurricane Center (NHC) remarked that the low would likely deepen into a tropical depression. However, thunderstorm activity diminished greatly near the center of circulation, with what little shower activity there was left displaced to the east due to high wind shear.〔 On October 12, the system was finally declared a tropical depression.
Although the depression was initially forecast to briefly reach tropical storm status, this failed to occur; instead, it remained a large monsoon-like system with the strongest winds well removed from the center. Shortly thereafter, the depression moved ashore between Salina Cruz and Arriaga. Deep convection decreased after landfall and it dissipated within 24 hours after formation, early on October 13. But the storm's remnants continued to effect Central America, until late on October 13, when the remnants of Tropical Depression Twelve-E were completely absorbed by a monsoon trough, directly to the remnant's east. The monsoon then developed into a strong upper-level, and left Central America, and the storm began moving northeastward, while slowly strengthening. 〔(NHC Graphical Outlook Archive )〕〔(NHC Graphical Outlook Archive )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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