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The 1959 Atlantic hurricane season had a then record-tying number of tropical cyclones – five – develop before August 1. The season was officially to begin on June 15, 1959 and last until November 15, 1959, the period of each year when most tropical cyclones form in the Atlantic basin, however in actuality the season began early when Tropical Storm Arlene formed on May 28. Tropical Storm Arlene struck Louisiana and brought minor flooding to the Gulf Coast of the United States. The next storm, Beulah, formed in the western Gulf of Mexico and brought negligible impact to Mexico and Texas. Later in June, an unnamed hurricane, nicknamed the Escuminac disaster, caused minor damage in Florida and devastated coastal Nova Scotia and New Brunswick, after becoming extratropical. Hurricane Cindy brought minor impact to The Carolinas. In late July, Hurricane Debra produced flooding in the state of Texas. Tropical Storm Edith in August and Hurricane Flora in September caused negligible impact on land. The most significant storm of the season was Hurricane Gracie, which peaked as a Category 4 hurricane on the Saffir–Simpson hurricane wind scale. After weakening slightly, Gracie made landfall as a Category 3 hurricane in South Carolina on August 29. It brought strong winds, rough seas, heavy rainfall, and tornadoes to the state, as well as North Carolina and Virginia. Overall, Gracie caused 22 fatalities and $14 million in damage. Following Hurricane Gracie was Hurricane Hannah, a long-lived storm that did not cause any known impact on land. The last two tropical cyclones, Tropical Storm Irene and Hurricane Judith, both caused minor coastal and inland flooding in Florida. The storms of the 1959 Atlantic hurricane season were collectively attributed to $24 million (1959 USD) and 64 fatalities. ==Season summary== The 1959 Atlantic hurricane season officially began on June 15, 1959, and it ended on November 15, 1959. Eleven tropical depressions developed during the season. All eleven of the depressions attained tropical storm status,〔 which was slightly above the 1950–2000 average of 9.6 named storms. Of the eleven systems, seven of them attained hurricane status,〔 which was also slightly above the average of 5.9.〔 Furthermore, two storms reached major hurricane status – Category 3 or greater on the Saffir–Simpson Hurricane Scale. Five tropical storms and three hurricanes made landfall during the season and caused 64 fatalities and about $24 million (1959 USD) in damage.〔 Season activity began with the development of Tropical Storm Arlene on May 28. In the month of June, Tropical Storm Beulah and an unnamed hurricane formed, the latter becoming a hurricane on June 19. Another pair of hurricanes, Cindy and Debra, formed in the month of July.〔 Collectively, the five tropical cyclones that formed in May, June, and July made the 1959 season the one of the most active seasons before August 1, tied with 1887, 1933, 1936, 1966, 1995 and 1997. The record was later surpassed in 2005 when seven tropical cyclones formed before August 1. However, tropical cyclogenesis slowed down in August, with only Tropical Storm Edith forming during the month. Next, three tropical cyclones formed in September – Flora, Gracie, and Hannah – all of which attained hurricane status. Furthermore, in October, Tropical Storm Irene and Hurricane Judith, the 1959 season's final storm, developed. The latter storm dissipated on October 21,〔 almost a month before the official end of the season on November 15.〔 The season's activity was reflected with an accumulated cyclone energy (ACE) rating of 77, which is slightly below the 1950–2000 average of 94.7.〔 ACE is, broadly speaking, a measure of the power of the hurricane multiplied by the length of time it existed, so storms that last a long time, as well as particularly strong hurricanes, have high ACEs. It is only calculated for full advisories on tropical systems at or exceeding 34 knots (39 mph, 63 km/h) or tropical storm strength. 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「1959 Atlantic hurricane season」の詳細全文を読む スポンサード リンク
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