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The 1884 Atlantic hurricane season was one of only three Atlantic hurricane seasons, along with 1852 and 1858, in which every known tropical cyclone attained hurricane status.〔 Overall, four tropical cyclones developed, three of which made landfall. The first system was initially observed over the northwestern Atlantic Ocean on September 1. It struck Newfoundland the following day, but impact there is unknown. On September 3, the next hurricane developed, though it did not effect land in its duration. The third hurricane struck Georgia, accompanied by damaging waves in north Florida. The final storm was last noted on October 17. These dates fall within the period with the most tropical cyclone activity in the Atlantic. Only two tropical cyclones during the season existed simultaneously. The hurricane brought heavy rainfall to Jamaica, resulting in eight deaths. This storm also left damage to crops and vessels in portions of the Bahamas and Cuba. Because technologies such as satellite monitoring were not available until the 1960s, historical data on tropical cyclones from this period may not be comprehensive. An undercount bias of zero to six tropical cyclones per year between 1851 and 1885 has been estimated. The season's activity was quantified by an accumulated cyclone energy (ACE) rating of 72. 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), which is tropical storm intensity. ==Storms== 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:01/08/1884 till:01/12/1884 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/08/1884 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_(119–153_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_=_111–129_mph_(178–208_km/h)_(C3) id:C4 value:rgb(1,0.56,0.13) legend:Category_4_=_130–156_mph_(209–251_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:01/09/1884 till:02/09/1884 color:C1 text:"Hurricane #1 (C1)" from:03/09/1884 till:16/09/1884 color:C3 text:"Hurricane #2 (C3)" from:10/09/1884 till:19/09/1884 color:C1 text:"Hurricane #3 (C1)" from:07/10/1884 till:17/10/1884 color:C2 text:"Hurricane #4 (C2)" bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/08/1884 till:01/09/1884 text:August from:01/09/1884 till:01/10/1884 text:September from:01/10/1884 till:01/11/1884 text:October from:01/11/1884 till:01/12/1884 text:November TextData = pos:(570,30) text:"(From the" pos:(617,30) 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「1884 Atlantic hurricane season」の詳細全文を読む スポンサード リンク
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