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The 1960 Atlantic hurricane season was the least active season since 1952. The season officially began on June 15, and lasted until November 15. These dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. The first system, an unnamed storm, developed in the Bay of Campeche on June 22. It brought severe local flooding to southeastern Texas and was considered the worst disaster in some towns since a hurricane in 1945. The unnamed storm moved across the United States for almost a week before dissipating on June 29. In July, Hurricane Abby resulted in minor damage in the Leeward Islands, before impacting a few Central American counties. Later that month, Tropical Storm Brenda caused flooding across much of the East Coast of the United States. The next storm, Hurricane Cleo, caused no known impact, despite its close proximity to land. The most significant storm of the season was Hurricane Donna, which at the time was among the ten costliest United States hurricanes and briefly became a Category 5 hurricane. After the precursor caused a deadly plane crash in Senegal, the storm itself brought severe flooding and wind impacts to the Lesser Antilles and Florida, where Donna made landfall as a Category 4 hurricane. It moved northeast and struck North Carolina and Long Island, New York, while still at hurricane intensity. Donna caused at least 227 fatalities and $900 million (1960 USD) in damage. Hurricane Ethel also reached Category 5 intensity, but rapidly weakened before making landfall in Mississippi, resulting in only 1 fatality and $1.5 million in losses. The final storm, Florence, developed on September 17. It remained weakened and moved erratically over Cuba and Florida. Only minor flooding was reported. Collectively, the tropical cyclones in 1960 caused at least 250 deaths and about $910.74 million in damage. Also The remnants of Abby became Hurricane Celeste. ==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:01/06/1960 till:01/11/1960 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/06/1960 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:22/06/1960 till:25/06/1960 color:TS text:"One (TS)" from:10/07/1960 till:16/07/1960 color:C2 text:"Abby (C2)" from:28/07/1960 till:31/07/1960 color:TS text:"Brenda (TS)" from:17/08/1960 till:21/08/1960 color:C1 text:"Cleo (C1)" barset:break from:29/08/1960 till:13/09/1960 color:C5 text:"Donna (C5)" from:14/09/1960 till:17/09/1960 color:C5 text:"Ethel (C5)" from:17/09/1960 till:27/09/1960 color:TS text:"Florence (TS)" barset:break bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/06/1960 till:01/07/1960 text:June from:01/07/1960 till:01/08/1960 text:July from:01/08/1960 till:01/09/1960 text:August from:01/09/1960 till:01/10/1960 text:September from:01/10/1960 till:01/11/1960 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 15, 1960.〔 It was a below-average season in which seven tropical depressions formed. All seven of the depressions attained tropical storm status, which was below the 1950–2000 average of 9.6 named storms. Four of these reached hurricane status, also falling short of the 1950–2000 average of 5.9. Furthermore, two storms reached major hurricane status, which is Category 3 or higher on the Saffir–Simpson hurricane wind scale. Both of which became Category 5 hurricanes. Two hurricane and four tropical storms made landfall during the season and caused 387 deaths and $396.7 million (1960 USD) in damage. Season activity began on June 23, with the development of an unnamed tropical storm. Tropical cyclogenesis resumed in July with Hurricane Abby between July 10 and July 16, followed by Tropical Storm Brenda from July 28 to July 31. In mid-August, Hurricane Cleo developed and had an uneventful duration. At the end of that month, Hurricane Donna formed and lasted into mid-September; it was the strongest tropical cyclone of the season, peaking as a Category 5 hurricane. There was another Category 5 hurricane in September, Ethel, which briefly existed in the Gulf of Mexico. The last storm of the season, Tropical Storm Florence, dissipated on September 25, over 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 88, which was the lowest total since 54 in 1954. 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 39 mph (63 km/h) or tropical storm strength. Subtropical cyclones, such as the first storm, are excluded from the total. 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「1960 Atlantic hurricane season」の詳細全文を読む スポンサード リンク
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