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Hurricane Carlos was an unusually small tropical cyclone which affected the western coast of Mexico in June 2015. Forming as the third named storm and hurricane of the annual hurricane season, Carlos developed from a trough first noted by the National Hurricane Center on June 7. The disturbance gradually organized and was designated as a tropical depression three days later. Drifting slowly northwestward, the depression was upgraded further to tropical storm intensity. Although persistent wind shear and dry air hampered intensification early on, Carlos strengthened into a hurricane on June 13 after moving into more favorable conditions. However, the return of dry air and upwelling caused the storm to deteriorate into a tropical storm. Paralleling the Mexican coast, Carlos would later regain hurricane intensity on June 15 and reach peak intensity a day later. The onset of wind shear and dry air afterwards led to rapid weakening, and Carlos degenerated into a remnant area of low pressure on June 17. Carlos' formation prompted coastal authorities to enact precautionary measures along states deemed at risk. In Guerrero, 507 shelters were opened. Rough seas along the shore generated by the hurricane caused widespread damage, which included the sinking of 12 ships in Playa Manzanillo harbor. The waves combined with heavy rain to inflict at least 5 million pesos (US$320,000) of damage on Michoacán's coastal installations. Strong winds produced by the passing storm also downed trees, power poles, and billboards. ==Meteorological history== Late on June 2, the National Hurricane Center (NHC) highlighted the potential for an area of low pressure to form well south of the coasts of Guatemala and El Salvador over subsequent days. This forecast come to fruition early on June 7, when shower and thunderstorm activity began to increase in association with a trough south of the Gulf of Tehuantepec. Steered steadily northwestward, the disturbance acquired organized, deep convection near the center, prompting the NHC to upgrade it to a tropical depression at 21:00 UTC on June 10. Following the formation of a spiral band that wrapped more than half way around the center, the depression was upgraded to Tropical Storm Carlos at 15:00 UTC the following day while positioned about 230 miles (370 km) south of Acapulco, Mexico. Following its designation as a named storm, Carlos drifted generally north-northwestward while embedded within a weak steering regime. The cyclone struggled with a combination of northerly wind shear and dry air entrainment, limiting the storm's associated deep convection to the eastern quadrant. By early on June 13, however, a ragged eye became evident on visible satellite imagery as the upper-level environment became increasingly conducive for intensification, and Carlos was upgraded to a Category 1 hurricane on the Saffir–Simpson hurricane wind scale at 15:00 UTC. The eye increased in symmetry over the coming hours, and the cyclone reached its initial peak with winds of 85 mph (140 km/h) six hours later. By early on June 14, the presentation of Carlos began to deteriorate as a result of upwelling and the ingestion of dry air; the eye became obscured and banding features decreased on satellite, while the eyewall became increasingly ill-defined on radar. At 15:00 UTC on June 14, the storm was downgraded to a tropical storm. Over the next 24 hours, Carlos changed little in structure as it tracked west-northwest under the influence of a mid-level ridge across central Mexico. However, a microwave pass early on June 15 indicated the presence of a small, closed eye, and an Air Force Reserve reconnaissance aircraft investigating the system a few hours later recorded peak 700 mb flight-level winds of 79 mph (127 km/h) and surface winds in the range of 74–77 mph (119–124 km/h). As a result, Carlos was once again upgraded to a Category 1 hurricane. Despite persistent northerly wind shear, the presentation continued to improve throughout the morning hours of June 16, with deep convection near the center and a banding eye feature observable. A second reconnaissance mission into the storm around 18:00 UTC that day found that the storm had attained winds of 90 mph (150 km/h), despite the minimum pressure remaining above the previous peak. Over the next few hours, Carlos quickly weakened as the environment became unfavorable. By the next morning, Carlos had degraded into a depression. Less than six hours later, Carlos was declared a remnant low. 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「Hurricane Carlos (2015)」の詳細全文を読む スポンサード リンク
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