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The 1965 Atlantic hurricane season was the first to use the modern-day bounds for an Atlantic hurricane season, which are June 1 to November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. It was one of the least active seasons on record, with only 6 tropical cyclones developing and reaching tropical storm intensity. Four of the storms strengthened into hurricanes. One system reached major hurricane intensity – Category 3 or higher on the Saffir–Simpson hurricane scale. The first system, an unnamed tropical storm, developed during the month of June in the Pacific Ocean, while located south of Guatemala. The storm moved northward across Central America, but caused no known impact in the region. It struck the Florida Panhandle and caused minor impact across much of the Southern United States. Tropical cyclogenesis halted for over two months, until Anna formed on August 21. The storm remained well away from land in the far North Atlantic Ocean and caused no impact. Hurricane Betsy was the strongest and most devastating storm of the season. Extensive damage from Betsy was reported in The Bahamas, Florida, and Louisiana, particularly the New Orleans area. It was the first hurricane in the history of the United States to result in at least $1 billion (1965 USD) in losses. Hurricane Carol meandered in the eastern Atlantic for over two weeks from mid-September to very early October. Impact on land from Carol was minimal. In late September, Tropical Storm Debbie developed in the northwestern Caribbean Sea and moved slowly across the region, before later reaching the Gulf of Mexico. The storm dissipated just offshore of Louisiana, which resulted in only minor impact along the Gulf Coast of the United States. The final tropical cyclone, Hurricane Elena, formed on October 12. Elena remained at sea for nearly a week and caused no damage on land. Collectively, the storms of the 1965 Atlantic hurricane season caused 76 fatalities and $1.45 billion in damage, almost entirely due to Hurricane Betsy. ==Season summary== ImageSize = width:800 height:200 PlotArea = top:10 bottom:80 right:20 left:20 Legend = columns:3 left:30 top:58 columnwidth:270 AlignBars = early DateFormat = dd/mm/yyyy Period = from:01/06/1965 till:01/11/1965 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/06/1965 Colors = id:canvas value:gray(0.88) id:GP value:red id:TD value:rgb(0.38,0.73,1) legend:Tropical_Depression_=_<39_mph_(0–62_km/h) id:TS value:rgb(0,0.98,0.96) legend:Tropical_Storm_=_39–73_mph_(63–117 km/h) id:C1 value:rgb(1,1,0.80) legend:Category_1_=_74–95_mph_(119–153_km/h) id:C2 value:rgb(1,0.91,0.46) legend:Category_2_=_96–110_mph_(154–177_km/h) id:C3 value:rgb(1,0.76,0.25) legend:Category_3_=_111–130_mph_(178–209-km/h) id:C4 value:rgb(1,0.56,0.13) legend:Category_4_=_131–155_mph_(210–249_km/h) id:C5 value:rgb(1,0.38,0.38) legend:Category_5_=_>=156_mph_(>=250_km/h) Backgroundcolors = canvas:canvas BarData = barset:Hurricane bar:Month PlotData= barset:Hurricane width:10 align:left fontsize:S shift:(4,-4) anchor:till from:11/06/1965 till:15/06/1965 color:TS text:"One (TS)" from:21/08/1965 till:28/08/1965 color:C1 text:"Anna (C1)" from:27/08/1965 till:12/09/1965 color:C4 text:"Betsy (C4)" barset:break from:16/09/1965 till:01/10/1965 color:C2 text:"Carol (C2)" from:24/09/1965 till:30/09/1965 color:TS text:"Debbie (TS)" from:15/10/1965 till:18/10/1965 color:C1 text:"Elena (C1)" barset:break bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/06/1965 till:01/07/1965 text:June from:01/07/1965 till:01/08/1965 text:July from:01/08/1965 till:01/09/1965 text:August from:01/09/1965 till:01/10/1965 text:September from:01/10/1965 till:01/11/1965 text:October TextData = pos:(570,30) text:"(From the" pos:(617,30) text:"Saffir-Simpson Hurricane Scale)" The Atlantic hurricane season officially began on June 1, 1965. This was the first Atlantic hurricane season to start on June 1 and end on November 30, which is the modern-day season bounds. It was a below average season in which six tropical depressions formed. All six of the depressions attained tropical storm status, and four of these attained hurricane status.〔 Furthermore, one storm reached major hurricane status – Category 3 or greater on the Saffir–Simpson Hurricane Scale. Two tropical storms and one hurricane made landfall during the season and caused 76 fatalities and about $1.45 billion in damage.〔 Season activity began with the development of an unnamed tropical storm on June 11. However, the season briefly became dormant after the storm dissipated on June 15, and there were no other tropical cyclones in June or July. The next system, Hurricane Anna, formed on August 21, more than two months later. Later in August, Hurricane Betsy developed and eventually became the most intense tropical cyclone of the 1965 season. In mid-September, Hurricane Carol formed in the eastern Atlantic and meandered for over two weeks. The next system, Tropical Storm Debbie, developed in the northwestern Caribbean Sea on September 24. Hurricane Elena, the final tropical cyclone,〔 developed on October 12 and dissipated on October 18, slightly less than two weeks before the official end of the season on November 30.〔 The season's activity was reflected with an accumulated cyclone energy (ACE) rating of 84, which was below the 1950-2000 average of 96.1. 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 cyclones with winds exceeding 39 mph (63 km/h), which is 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「1965 Atlantic hurricane season」の詳細全文を読む スポンサード リンク
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