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The 2005 Atlantic hurricane season broke numerous records for cyclonic formation and intensity. It saw a total of thirty-one tropical and subtropical cyclones form, many of which broke records as individual storm as well as contributing to a number of season records. This article is an in-depth look at the statistics of the 2005 Atlantic hurricane season. ==Number of storms== The 2005 Atlantic hurricane season, with 28 nameable storms (wind speed ≥ 39 mph), is the most active season on record, surpassing the 1933 season's 20 nameable storms. With 15 hurricanes, the 2005 season also has had the most hurricanes formed, surpassing the 1969 season's 12. The season holds the record for the most major hurricanes, seven, tied the 1999 season's record of five Category 4 and 5 hurricanes and holds the record for the most Category 5 hurricanes in a single season, four (see below). With the formation of Tropical Storm Vince, Tropical Storm Wilma, and Tropical Storm Alpha, 2005 became the first season to use the 'V', 'W' and Greek Letter names, respectively, since naming of Atlantic storms began in the 1950 season.〔 It also has the distinction of being only the second season to use the 'R', 'S', and 'T' names. Only the 1995 season had previously used these letters. 2005 holds the record for the most storms to ever form during the month of July. Five storms (Cindy, Dennis, Emily, Franklin, and Gert) formed during that period. The previous record for most storms to form in the month of July was four; this record was held by the 1966 and 1995 seasons.〔 The number of storms before the end of July (seven) is also a record, breaking the record of five set in the 1887, 1933, 1936, 1959, 1966, and 1995 seasons.〔 2005 and 1933 share the record for the most storms (17) forming before the end of September. The 2005 season now also holds the record for most storms (24) forming before the end of October (but not the record for within the month itself, the 1950 season had eight storms). 2005 also broke the record for most storms forming in November, with 3 storms (Gamma, Delta and Epsilon). 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「2005 Atlantic hurricane season statistics」の詳細全文を読む スポンサード リンク
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