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The 1980 Atlantic hurricane season was an average Atlantic hurricane season in which eleven named storms formed. Although Tropical Depression One formed on July 17, the season officially began on June 1 and ended on November 30, dates that conventionally delimit the period of each year when most tropical cyclones develop in the Atlantic basin. The season's final storm, Hurricane Karl, dissipated on November 27. The season produced fourteen tropical depressions, of which twelve intensified into tropical storms, four became hurricanes, and two became major hurricanes. The only significant storm during the season was Hurricane Allen, a long-lived Cape Verde-type hurricane that became one of the strongest hurricanes recorded in the Atlantic Ocean, as well as the earliest Category 5 hurricane on the Saffir–Simpson Hurricane Wind Scale ever recorded, a record that stood until Hurricane Emily during the 2005 season. Allen reached its peak intensity with maximum sustained winds of with a minimum barometric pressure of 899 mbar (hPa; 26.55 inHg). This timeline includes information that was not operationally released, meaning that data from post-storm reviews by the National Hurricane Center, such as a storm that was not operationally warned upon, has been included. This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season. ==Timeline of events== 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:01/07/1980 till:30/11/1980 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/07/1980 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)_(TD) id:TS value:rgb(0,0.98,0.96) legend:Tropical_Storm_=_39–73_mph_(63–117 km/h)_(TS) id:C1 value:rgb(1,1,0.80) legend:Category_1_=_74–95_mph_(118–153_km/h)_(C1) id:C2 value:rgb(1,0.91,0.46) legend:Category_2_=_96–110_mph_(154–177_km/h)_(C2) id:C3 value:rgb(1,0.76,0.25) legend:Category_3_=_111–130_mph_(178–209-km/h)_(C3) id:C4 value:rgb(1,0.56,0.13) legend:Category_4_=_131–155_mph_(210–249_km/h)_(C4) id:C5 value:rgb(1,0.38,0.38) legend:Category_5_=_≥157_mph_(≥252_km/h)_(C5) Backgroundcolors = canvas:canvas BarData = barset:Hurricane bar:Month PlotData= barset:Hurricane width:10 align:left fontsize:S shift:(4,-4) anchor:till from:17/07/1980 till:21/07/1980 color:TD text:"One (TD)" from:01/08/1980 till:11/08/1980 color:C5 text:"Allen (C5)" from:13/08/1980 till:16/08/1980 color:TD text:"Four (TS)" from:14/08/1980 till:19/08/1980 color:C2 text:"Bonnie (C2)" from:20/08/1980 till:25/08/1980 color:C1 text:"Charley (C1)" from:25/08/1980 till:28/08/1980 color:TD text:"Six (TD)" barset:break from:01/09/1980 till:08/09/1980 color:C1 text:"Georges (C1)" from:04/09/1980 till:07/09/1980 color:TS text:"Danielle (TS)" from:04/09/1980 till:10/09/1980 color:C1 text:"Earl (C1)" from:06/09/1980 till:20/09/1980 color:C3 text:"Frances (C3)" from:20/09/1980 till:26/09/1980 color:TS text:"Hermine (TS)" from:04/10/1980 till:11/10/1980 color:C2 text:"Ivan (C2)" barset:break from:08/11/1980 till:15/11/1980 color:C2 text:"Jeanne (C2)" from:13/11/1980 till:18/11/1980 color:TD text:"Fourteen (TD)" from:25/11/1980 till:27/11/1980 color:C1 text:"Karl (TD)" barset:skip bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/07/1980 till:01/08/1980 text:July from:01/08/1980 till:01/09/1980 text:August from:01/09/1980 till:01/10/1980 text:September from:01/10/1980 till:01/11/1980 text:October from:01/11/1980 till:30/11/1980 text:November TextData = pos:(570,30) text:"(From the" pos:(618,30) text:"Saffir–Simpson Hurricane Scale)" 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「Timeline of the 1980 Atlantic hurricane season」の詳細全文を読む スポンサード リンク
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