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The 2004 North Indian Ocean cyclone season was the first in which tropical cyclones were officially named in the basin. Cyclone Onil, which struck Pakistan, was named in late September. One other storm, Cyclone Agni, was also named, which crossed into the southern hemisphere during its origins and became one of the storms closest to the equator. The season was fairly active, with ten depressions forming from May to November. The India Meteorological Department designated four of these as cyclonic storms, which have maximum sustained winds of at least 65 km/h (40 mph) averaged over three minutes. The Joint Typhoon Warning Center also issued warnings for five of the storms on an unofficial basis. In early May, two tropical storms formed on opposite sides of India. The first formed on May 5 and meandered while intensifying, dropping in Aminidivi in the Lakshadweep group offshore western India, which was the highest daily rainfall total in the basin. A week later, a cyclone – the strongest of the season – struck Myanmar, killing 236 people and leaving 25,000 people homeless. Depressions also formed on opposite sides of India in June. A depression in September killed 59 people after dropping torrential rainfall over Bangladesh and adjacent West Bengal. In October, another depression struck the region, killing 273 people. There was also a short-lived cyclonic storm in the Arabian Sea in November. ==Season summary== ImageSize = width:781 height:191 PlotArea = top:10 bottom:80 right:50 left:20 Legend = columns:3 left:30 top:58 columnwidth:270 AlignBars = early DateFormat = dd/mm/yyyy Period = from:01/05/2013 till:01/01/2014 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/05/2013 Colors = id:canvas value:gray(0.88) id:GP value:red id:TD value:rgb(0.5,0.8,1) legend:Depression id:DD value:rgb(0.37,0.73,1) legend:Deep_Depression id:TS value:rgb(0,0.98,0.96) legend:Cyclonic_Storm id:ST value:rgb(0.8,1,1) legend:Severe_Cyclonic_Storm id:VS value:rgb(1,0.76,0.25) legend:Very_Severe_Cyclonic_Storm id:ES value:rgb(1,0.56,0.13) legend:Extremely_Severe_Cyclonic_Storm id:SU value:rgb(1,0.38,0.38) legend:Super_Cyclonic_Storm Backgroundcolors = canvas:canvas BarData = barset:Hurricane bar:Month PlotData= barset:Hurricane width:10 align:left fontsize:S shift:(4,-4) anchor:till from:05/05/2013 till:10/05/2013 color:TS text:"ARB 01" from:16/05/2013 till:19/05/2013 color:ES text:"BOB 01" from:10/06/2013 till:13/06/2013 color:DD text:"ARB 02" from:11/06/2013 till:14/06/2013 color:DD text:"BOB 02" barset:break from:12/09/2013 till:15/09/2013 color:TD text:"BOB 03" from:30/09/2013 till:10/10/2013 color:ST text:"Onil" from:02/10/2013 till:04/10/2013 color:TD text:"BOB 04" from:07/10/2013 till:08/10/2013 color:TD text:"BOB 05" barset:break from:02/11/2013 till:07/11/2013 color:DD text:"ARB 04" from:29/11/2013 till:02/12/2013 color:ST text:"Agni" bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/05/2013 till:31/05/2013 text:May from:01/06/2013 till:30/06/2013 text:June from:01/07/2013 till:31/07/2013 text:July from:01/08/2013 till:31/08/2013 text:August from:01/09/2013 till:30/09/2013 text:September from:01/10/2013 till:31/10/2013 text:October from:01/11/2013 till:30/11/2013 text:November from:01/12/2013 till:31/12/2013 text:December The India Meteorological Department in New Delhi (IMD) was designated a Regional Specialized Meteorological Center by the World Meteorological Organization in July 1988 to monitor and warn on tropical cyclones in the northern Indian Ocean. The basin is defined between 45° and 100° E, and north of the equator. The agency also used geostationary satellites and a network of buoys to track the storms, and utilized various tropical cyclone forecast models to predict future tracks.〔 The American-based Joint Typhoon Warning Center (JTWC) also issued warnings for storms in the basin on an unofficial basis.〔 The monsoon became active in May as water temperatures became warm. Twin depressions formed during June on opposite sides of India, which helped intensify the monsoon over the country. A notable feature of the season was the Arabian Sea being more active than the Bay of Bengal.〔 The IMD began naming tropical cyclones within the basin in 2004, beginning after the monsoon season. As such, only two cyclonic storms in the latter half of the year were named.〔 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「2004 North Indian Ocean cyclone season」の詳細全文を読む スポンサード リンク
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