Atlantic Hurricane Season: A Case Study

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The Atlantic hurricane season officially began on June 1, 2015. It was a near average season in which twelve tropical cyclones formed. Eleven of the twelve designated cyclones attained tropical storm status. Of the eight tropical storms, four reached at least Category 1 hurricane intensity. The 2015 season extended the period without major hurricane landfalls in the United States to ten years, with the last such system being Hurricane Wilma in 2005. The lack of activity was primarily attributed to an atmospheric circulation that favored dry, sinking air over low latitudes to the west of 40°W and westerly wind shear enhanced by El Niño. A few notable events occurred during the season. Ana was the first tropical cyclone to form in the off-season since 2012. Fred was one of the easternmost tropical storms recorded and made landfall in Cape Verde as a Category …show more content…

The month of June featured one tropical cyclone, Bill, which formed on June 16. Claudette, the only system in the month of July, developed on July 13. The rate of tropical cyclogenesis increased in August, though no storms developed in the first half of the month. Danny, the season's first major hurricane, formed on August 16, followed by Erika on August 24, and Fred on August 30. September, which is climatological peak of hurricane season, featured five additional tropical cyclones – Grace, Henri, Tropical Depression Nine, Ida, and Joaquin. The most intense storm of the season was Joaquin, which peaked as a strong Category 4 hurricane with maximum sustained winds of 155 mph (250 km/h), just short of Category 5 on the Saffir–Simpson hurricane wind scale. Joaquin lasted into October, though no other systems developed that month. The season's final cyclone, Kate, developed on November 8 and became extratropical on November

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