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The 1968 Atlantic hurricane season was one of five Atlantic hurricane seasons during the satellite era not to feature a major hurricane, the others being 1972, 1986, 1994, and 2013. The season officially began on June 1 and lasted until November 30, dates which conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. It was a below average season in terms of tropical storms, with a total of eight nameable storms. The first system, Hurricane Abby, developed in the northwestern Caribbean Sea on June 1. Abby moved northward and struck Cuba, bringing heavy rainfall and flooding to western portions of the island. Making landfall in Florida on June 4, Abby caused flooding and spawned four tornadoes, but left behind little damage. Overall, the hurricane resulted in six deaths and about $450,000 (1968 USD) in damage. In late June, Tropical Storm Candy brought minor flooding and spawned several tornadoes across portions of the Southern United States. Overall damage from the cyclone reached approximately $2.7 million. Despite three named storms in June, cyclone activity slowed throughout the subsequent month, with only one tropical depression. During late August and early September, Tropical Depression Eleven brought flooding to the Jacksonville area of Florida. Hurricane Gladys, the final and also the strongest named storm of the season, developed in the southwestern Caribbean Sea on October 13. Peaking as a Category 1 on the Saffir–Simpson hurricane wind scale, the system resulted in flooding across western Cuba, particularly in Havana, where the storm caused six deaths and about $12 million in damage. Rough seas, gusty winds, tornadoes, and heavy rainfall resulted in generally minor impact in Florida, with three fatalities and damage totaling $6.7 million. Gladys also provided relief for one of North Carolina's worst droughts. Several other storms left negligible impact on land. Overall, the storms of the season collectively caused approximately $21.8 million in damage and killed 17 people. ==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:01/06/1968 till:30/11/1968 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/06/1968 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:01/06/1968 till:13/06/1968 color:C1 text:"Abby (C1)" from:17/06/1968 till:26/06/1968 color:C1 text:"Brenda (C1)" from:22/06/1968 till:26/06/1968 color:TS text:"Candy (TS)" from:04/07/1968 till:05/07/1968 color:TD text:"TD" from:10/08/1968 till:17/08/1968 color:C1 text:"Dolly (C1)" from:26/08/1968 till:31/08/1968 color:TD text:"Eleven (TD)" barset:break from:07/09/1968 till:10/09/1968 color:TD text:"TD" from:08/09/1968 till:11/09/1968 color:TD text:"Fourteen (TD)" from:11/09/1968 till:19/09/1968 color:TS text:"Edna (TS)" from:14/09/1968 till:23/09/1968 color:TS text:"One (STS)" from:17/09/1968 till:21/09/1968 color:TD text:"TD" from:23/09/1968 till:30/09/1968 color:TS text:"Frances (TS)" barset:break from:23/09/1968 till:25/09/1968 color:TD text:"TD" from:25/09/1968 till:29/09/1968 color:TD text:"Eighteen (TD)" from:13/10/1968 till:21/10/1968 color:C1 text:"Gladys (C1)" from:24/11/1968 till:25/11/1968 color:TD text:"TD" barset:skip bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/06/1968 till:01/07/1968 text:June from:01/07/1968 till:01/08/1968 text:July from:01/08/1968 till:01/09/1968 text:August from:01/09/1968 till:01/10/1968 text:September from:01/10/1968 till:01/11/1968 text:October from:01/11/1968 till:30/11/1968 text:November TextData = pos:(570,30) text:"(From the" pos:(618,30) text:"Saffir–Simpson hurricane wind scale)" The Atlantic hurricane season officially began on June 1,〔 with Hurricane Abby developing that day.〔 It was a below average season in which eight tropical storms formed, compared to the 1966–2009 average of 11.3 named storms. Four of these reached hurricane status,〔 slightly below the 1966–2009 average of 6.2.〔 None of the hurricanes strengthened into a major hurricane; only four other seasons since the satellite era began featured no major hurricanes: 1972, 1986, 1994, and 2013.〔 Further, no hurricanes exceeded Category 1 intensity on the Saffir–Simpson hurricane wind scale; this would not occur again until 2013. Despite an active beginning, this season had the fewest hurricane days since 1962.〔 Four hurricanes and one tropical storm made landfall during the season, causing 17 deaths and about $21.8 million in damage.〔〔〔〔 The last storm of the season, a tropical depression, dissipated on November 25, five days before the official end of hurricane season on November 30.〔 Tropical cyclogenesis began in June, with three named storms during that month – hurricanes Abby and Brenda and Tropical Storm Candy – tying the record set in 1886, 1936, and 1959.〔 Despite the quick start, activity abruptly slowed, with only a tropical depression in July. The next named storm, Hurricane Dolly, existed from August 10 to August 17, while Tropical Depression Eleven formed later that month.〔 September was the most active month, with five tropical depressions, two tropical storms, and one subtropical storm, which peaked with an intensity equivalent to a Category 1. In October, Hurricane Gladys became the strongest tropical cyclone of the season, despite maximum sustained winds of only 85 mph (140 km/h) and a minimum barometric pressure of . The season's activity was reflected with an accumulated cyclone energy (ACE) rating of 45. 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 , 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「1968 Atlantic hurricane season」の詳細全文を読む スポンサード リンク
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