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The 1950 Atlantic hurricane season was the first year in the Atlantic hurricane database (HURDAT) that storms were given names in the Atlantic basin. Names were taken from the Joint Army/Navy Phonetic Alphabet, with the first named storm being designated "Able", the second "Baker", and so on. It was an active season with sixteen tropical storms, with eleven of them developing into hurricanes. Six of these hurricanes were intense enough to be classified as major hurricanes—a denomination reserved for storms that attained sustained winds equivalent to a Category 3 or greater on the present-day Saffir–Simpson scale. One storm, the twelfth of the season, was unnamed and was originally excluded from the yearly summary, and three additional storms were discovered in re-analysis. The large quantity of strong storms during the year yielded, prior to modern reanalysis, what was the highest seasonal accumulated cyclone energy (ACE) of the 20th century in the Atlantic basin; 1950 held the seasonal ACE record until broken by the 2005 Atlantic hurricane season. However, later examination by researchers determined that several storms in the 1950 season were weaker than thought, leading to a lower ACE than assessed originally. The tropical cyclones of the season produced a total of 88 fatalities and $38.5 million in property damage (1950 USD). The first officially named Atlantic hurricane was Hurricane Able, which formed on August 12, brushed the North Carolina coastline, and later moved across Atlantic Canada. The strongest hurricane of the season, Hurricane Dog, reached the equivalent of a Category 4 hurricane on the Saffir–Simpson scale, and caused extensive damage to the Leeward Islands. Two major hurricanes affected Florida: Easy produced the highest 24-hour rainfall total recorded in the United States, while King struck downtown Miami as a Category 4 hurricane and caused $27.75 million (1950 USD) of damage. The two major landfalls made the 1945–1950 period the only five-year period to feature five major hurricane landfalls in the United States—a record that held until tied in 2000–2005.〔〔 The last storm of the year, an unnamed tropical storm, dissipated on November 13. ==Summary== The season officially began on June 15 and ended on November 15; these dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. This season was the first time that the United States Weather Bureau operated with radar technology to observe hurricanes 200 mi (320 km) away from land. Although the season began on June 15, tropical activity typically does not begin before August. The tropics remained tranquil through early August, and the U.S. Weather Bureau noted that the season had been "remarkably quiet". The inactive period ended on August 12, when the first tropical storm developed east of the Lesser Antilles. This storm received the name "Able" as part of the Joint Army/Navy Phonetic Alphabet.〔 (The same alphabet was also used in the 1951 and 1952 seasons, before being replaced by female naming in 1953.) Before the end of August, four hurricanes had formed in the Atlantic, two of which attained major hurricane status.〔 A major hurricane is a tropical cyclone with winds of at least 111 mph (178 km/h); a storm of this intensity would be classified as a Category 3 or greater on the Saffir-Simpson Hurricane Scale introduced in the 1970s. In contrast to the busy August, only three named storms developed in September—although three of the August hurricanes lasted into September. Hurricane Dog became the strongest hurricane of the season on September 6 with winds of ; its peak strength occurred over the open Atlantic Ocean, so it did not cause significant damage when it was at its strongest. It was among the most severe hurricanes on record in Antigua, where the hurricane struck early in its duration.〔 Eight tropical storms or hurricanes formed in October, which is greater than in any other year. In total, there were sixteen tropical storms during the season, of which five (Tropical Storm How, Tropical Storm Mike and three unnamed tropical storms) did not attain hurricane status. Overall, six major hurricanes occurred during the year.〔 The Hurricane Hunters made about 300 flights into hurricanes during the season, the most since the practice began in 1943.〔 The number of storms was above average; in a typical year, eleven tropical storms, six hurricanes, and between two and three major hurricanes take place. With the numerous major hurricanes, the season produced a high accumulated cyclone energy (ACE) of 211, although it was originally assessed as 243 before reanalysis. At one point, the 1950 total was the highest on record, before being surpassed by the 2005 season.〔 This value is an approximation of the combined kinetic energy used by all tropical cyclones throughout the season. 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「1950 Atlantic hurricane season」の詳細全文を読む スポンサード リンク
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