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The 1979 Atlantic hurricane season was the first season to include both male and female names. The season officially began on June 1, and lasted until November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin.〔 It was slightly below average, with nine systems reaching tropical storm intensity. The first system, an unnumbered tropical depression, developed north of Puerto Rico on June 9. Two days later, Tropical Depression One formed and produced severe flooding in Jamaica, with 40 deaths and about $27 million (1979 USD) in damage. Tropical Storm Ana caused minimal impact in the Lesser Antilles. Hurricane Bob spawned tornadoes and produced minor wind damage along the Gulf Coast of the United States, primarily in Louisiana, while the remnants caused flooding, especially in Indiana. Tropical Storm Claudette caused extensive flooding, due to torrential rainfall. There were two deaths and damaged totaled $750 million. The most intense tropical cyclone of the season was Hurricane David. It moved across the Lesser Antilles in late August, with the worst hit islands being Dominica and Martinique. The storm then strengthened further and struck Dominican Republic as a Category 5 hurricane. David was the strongest and deadliest tropical cyclone to make landfall in that country since 1930. In Dominican Republic alone, the system caused approximately 1,000 death and $1 billion in damage. Later, David brought wind damage, tornadoes, and flooding to portions of the East Coast of the United States. Overall, the storm resulted in 2,068 deaths and $1.54 billion in damage. Hurricane Frederic brought destruction to the Gulf Coast of the United States, especially in Alabama and Mississippi. With $2.3 billion in damage, Frederic was the costliest hurricane in the history of the United States, until Hurricane Hugo in 1989. Tropical Storm Elena brought flooding to the Greater Houston area, with five deaths and about $10 million in damage. However, little impact was reported elsewhere. Hurricane Henri remained offshore in the Gulf of Mexico and disrupted efforts to stop the Ixtoc I oil spill. Henri also caused flooding in portions of Mexico. In mid and late-September, a tropical depression caused flooding in the Southern United States, especially Texas. Four deaths were reported, two in Texas and two in Kentucky. Toward the end of October, a brief subtropical storm struck Newfoundland, but left little impact. Other than Tropical Depression One and the tropical depression that brought flooding to the Southern United States in mid and late-September, none of the other depressions caused significant effects of land. Collectively, the tropical cyclones of the season resulted in $4.63 billion in damage and at least 2,136 deaths. Pacific Storm Blanca originated in the basin. ==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:01/06/1979 till:01/12/1979 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/06/1979 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:11 align:left fontsize:S shift:(4,-4) anchor:till from:11/06/1979 till:16/06/1979 color:TD text:"One" (TD) from:19/06/1979 till:24/06/1979 color:TS text:"Ana" (TS) from:09/07/1979 till:13/07/1979 color:C1 text:"Bob" (C1) from:10/07/1979 till:13/07/1979 color:TD text:"Four" (TD) from:16/07/1979 till:26/07/1979 color:TS text:"Claudette" (TS) from:28/07/1979 till:06/08/1979 color:TD text:"Six" (TD) from:25/08/1979 till:06/09/1979 color:C5 text:"David" (C5) barset:break from:25/08/1979 till:28/08/1979 color:TD text:"Eight" (TD) from:29/08/1979 till:14/09/1979 color:C4 text:"Frederic" (C4) from:30/08/1979 till:02/09/1979 color:TS text:"Elena" (TS) from:04/09/1979 till:15/09/1979 color:C2 text:"Gloria" (C2) from:15/09/1979 till:22/09/1979 color:C1 text:"Henri" (C1) from:16/09/1979 till:20/09/1979 color:TD text:"Thirteen" (TD) from:12/10/1979 till:20/10/1979 color:TD text:"Fourteen" (TD) barset:break from:23/10/1979 till:25/10/1979 color:TS text:"One" (STS) from:07/11/1979 till:10/11/1979 color:TD text:"Fifteen" (TD) barset:break bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/06/1979 till:01/07/1979 text:June from:01/07/1979 till:01/08/1979 text:July from:01/08/1979 till:01/09/1979 text:August from:01/09/1979 till:01/10/1979 text:September from:01/10/1979 till:01/11/1979 text:October from:01/11/1979 till:01/12/1979 text:November TextData = pos:(570,30) text:"(From the" pos:(617,30) text:"Saffir-Simpson Hurricane Scale)" The Atlantic hurricane season officially began on June 1, 1979. Although 27 tropical cyclones developed,〔 only nine of them reach tropical storm intensity, which is slightly below the 1950-2000 average of 9.6 named storms per season. Of the nine tropical storms, five of them strengthened into a hurricane, which is also slightly below average.〔 Two of the five hurricane became major hurricanes, which is Category 3 or greater on the Saffir–Simpson hurricane wind scale.〔 Three tropical storms, one subtropical storm, and three hurricanes made landfall during the season and caused at least 2,136 fatalities and $4.63 billion.〔 * * * * * * 〕 Despite its intensity, Tropical Depression One also resulted in damage and deaths due to severe flooding in Jamaica. The last storm of the season, an unnumbered tropical depression, dissipated on November 15, about 15 days before the official end of hurricane season on November 30.〔 Tropical cyclogenesis began in June, with three tropical depressions, one of which strengthened into Tropical Storm Ana. A total of four systems formed in the month of July, including Hurricane Bob and Tropical Storm Claudette. Activity briefly halted after Tropical Depression Six dissipated on August 6 and lasted until Hurricane David developed on August 25. There were four other tropical cyclones that month, including Hurricane Frederic and Tropical Storm Elena. In September, six systems developed, with the named storms of the month being hurricane Gloria and Henri. October was slightly less active, with four tropical cyclones, one of which was an unnamed subtropical storm. Two additional tropical depressions developed in November, the second of which dissipated on November 15.〔 The season's activity was reflected with an accumulated cyclone energy (ACE) rating of 93. 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 strength. Although officially, subtropical storms are not included in the ACE value, the figure above includes periods when storms were in a subtropical phase.〔 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「1979 Atlantic hurricane season」の詳細全文を読む スポンサード リンク
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