|
The 2000-01 South-West Indian Ocean cyclone season was fairly quiet with only five named storms, although there was an additional unnamed tropical storm and two subtropical cyclones with gale-force winds. It started early, with a tropical disturbance forming on August 1 – the first day of the cyclone year. However, the first named storm, Ando, was not named until January 2, which at the time was the 4th latest on record. Ando would become the most intense cyclone of the year, reaching peak winds of 195 km/h (120 mph) according to the Météo-France office (MFR) on Réunion, the official Regional Specialized Meteorological Center for the basin. The agency tracked storms south of the Equator and west of 90°E to the east coast of Africa. In addition to being the strongest storm, Cyclone Ando was one of two deadly storms during the season. It passed about 205 km (105 mi) west of Réunion, producing of rainfall in the mountainous peaks. The rains led to flooding that killed two people. Ando was one of three storms to attain tropical cyclone status – winds of at least 120 km/h (75 mph) – in the month of January. The others were Bindu, which alternated its trajectory several times over open waters, and Charly, which rapidly weakened after encountering hostile wind shear. The next storm to form was Tropical Cyclone Dera, which intensified near Mozambique in early March and killed two people there due to flooding rains. It later moved southward through the Mozambique Channel, maintaining its intensity unusually far to the south before becoming extratropical. There was a month of inactivity in March, including three weeks in which there were no storms worldwide, the first such instance. Subsequently, two storms formed in early April; one was a small, unnamed tropical storm, and the other was Severe Tropical Storm Evariste, which brought light rainfall to two islands. The season ended with an unusual subtropical storm forming rapidly in the southern Mozambique Channel on June 19, the only such storm to form in that body of water in the month. It became the strongest storm on record for so late in the season, although it weakened without affecting land, dissipating on June 24. ==Season summary== ImageSize = width:790 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:01/08/2000 till:01/07/2001 TimeAxis = orientation:horizontal ScaleMinor = grid:black unit:month increment:1 start:01/08/2000 Colors = id:canvas value:gray(0.88) id:GP value:red id:DT value:rgb(0.38,0.73,1) legend:Tropical_Disturbance_<_50_km/h_(_<_31_mph) id:TD value:rgb(0.38,0.73,1) legend:Tropical_Depression_=_51–62_km/h_(32–38_mph) id:MS value:rgb(0,0.98,0.96) legend:Moderate_tropical_Storm_=_63–88_km/h_(39–54_mph) id:SS value:rgb(0.80,1,1) legend:Severe_Tropical_Storm_=_89–117_km/h_(55–73_mph) id:TC value:rgb(1,1,0.80) legend:Tropical_Cyclone_=_118–165_km/h_(74–102_mph) id:IT value:rgb(1,0.76,0.25) legend:Intense_=_166–212_km/h_(103–132_mph) id:VI value:rgb(1,0.38,0.38) legend:Very_Intense_>_212_km/h_(_>_132_mph) Backgroundcolors = canvas:canvas BarData = barset:Hurricane bar:Month PlotData= barset:Hurricane width:10 align:left fontsize:S shift:(4,-4) anchor:till from:01/08/2000 till:03/08/2000 color:DT text:"01" from:12/11/2000 till:18/11/2000 color:TD text:"02" from:31/12/2000 till:12/01/2001 color:IT text:"Ando" from:03/01/2001 till:17/01/2001 color:TC text:"Bindu" from:17/01/2001 till:26/01/2001 color:IT text:"Charly" from:22/01/2001 till:24/01/2001 color:TD text:"06" barset:break from:01/02/2001 till:03/02/2001 color:TD text:"07" from:05/03/2001 till:12/03/2001 color:TC text:"Dera" from:02/04/2001 till:08/04/2001 color:SS text:"Evariste" from:03/04/2001 till:05/04/2001 color:TD text:"10" from:20/06/2001 till:23/06/2001 color:TD text:"11" barset:break bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/08/2000 till:01/09/2000 text:August from:01/09/2000 till:01/10/2000 text:September from:01/10/2000 till:01/11/2000 text:October from:01/11/2000 till:01/12/2000 text:November from:01/12/2000 till:01/01/2001 text:December from:01/01/2001 till:01/02/2001 text:January from:01/02/2001 till:01/03/2001 text:February from:01/03/2001 till:01/04/2001 text:March from:01/04/2001 till:01/05/2001 text:April from:01/05/2001 till:01/06/2001 text:May from:01/06/2001 till:01/07/2001 text:June During the season, the Météo-France office (MFR) on Réunion island issued warnings in tropical cyclones within the basin. The agency estimated intensity through the Dvorak technique, and warned on tropical cyclones in the region from the coast of Africa to 90° E, south of the equator to 30° S. At the time, the cyclone year was from August 1 to July 31 of the subsequent year. The Joint Typhoon Warning Center (JTWC), which is a joint United States Navy – United States Air Force task force, also issued tropical cyclone warnings for the southwestern Indian Ocean in an unofficial capacity. Aside from a tropical disturbance in August, the season began later than usual, the fourth consecutive season to do so. At the time it had the 4th latest start on record for the first named storm. Only about 20% of seasons have their first storm form after the middle of December, and the first named storm of this season, Ando, did not become a tropical storm until early January. However, January was active with three tropical cyclones, two of which became intense tropical cyclones, due to the active phase of the Madden–Julian oscillation (MJO). February returned to a period of inactivity, and generally there was minimal convection across the basin due to unusually dry air. This was spread by a powerful and persistent ridge that extended eastward from Madagascar, as well as an inactive phase of the MJO. Drought conditions occurred on Réunion due to the lack of rainfall. After three weeks of no tropical cyclones developing worldwide, an event unseen since 1995, the tropics became active again in early April. In contrast with the busy preceding season, this season had much lower activity than usual, with only 36 days in which there was a tropical storm or cyclone active; this was 17 less than normal. However, the number of days with a tropical cyclone was slightly above normal at 15. In general, the southern hemisphere as a whole had the least active season since 1954. There were only five named storms, only the fifth such time since the beginning of the satellite era in 1967. As most storms formed toward the eastern periphery of the basin, damage was much less than the preceding year.〔 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「2000–01 South-West Indian Ocean cyclone season」の詳細全文を読む スポンサード リンク
|