south west indian_ocean cyclone season south west indian_ocean cyclone season featured normal activity deadly storms steady storm activity december april favorable conditions warm sea surface temperatures active monsoon named storm tied strongest cyclone passed near island mauritius damaging destroying building killing person later struck madagascar storms strike nation months collectively caused million damage deaths storms tropical storm caused deadly flooding southeastern africa killed people caused million damage storm destroyed small dams madagascar caused worst flooding years addition storms affecting madagascar december left million damage mauritius weeks caused severe flooding south_africa produced additional rainfall high seas country killing people final storm season caused million damage deaths northern northwestern madagascar cities near landfall largely destroyed people left homeless penultimate storm tied strongest storm basin crossed australian region named january crossed australian region named season summary season tracked storms basin dvorak technique estimate tropical cyclone satellite imagery agency later meteorological office time basin extended east coast africa storms named rest naming list named storms slightly normal formed january february intense tropical cyclones twice average increased activity season enhanced strong monsoon trough warm water temperatures extended addition named storms additional storms season classified developed july australian basin briefly crossed south west indian_ocean july soon entered australian basin dissipated formed southeast november tracked southwest estimated peak minute sustained winds mph storm dissipated november northeast mauritius addition formed australian basin march crossed south west indian_ocean march weakening storm renamed days later entered australian basin dissipating december january storms struck madagascar short succession collectively dropped heavy rainfall areas country reported precipitation totals normal storms damaged roads bridges dams tons rice damage storms estimated million people left homeless storms killed people seven cyclones struck affected country causing billion million usd crop damage approved loan million million usd rebuild damaged water infrastructure program lasted december consisted repairing irrigation systems dams storms intense tropical cyclone december area convection persisted corresponded satellite derived dvorak rating basis assessed system tropical disturbance later day initiated advisories named system december storm intensified tropical cyclone day upgraded equivalent minimal hurricane having moved west cyclone turned west southwest passed south islands producing wind gusts mph storm damaged destroyed house island leaving residents power food water shelter downed trees island source employment residents high waves flooded wells contaminated water supply cyclone injured people killed mauritius government later evacuated residents structures destroyed following storm countries donated country assist including france sent crews set shelter provide care residents island largely rebuilt years reached peak winds december estimated winds mph day estimated minute winds mph time passing north northernmost tip madagascar storm produced wind gusts mph cyclone weakened curving southwest later south making landfall western madagascar near wind gusts mph land turning southeast rapidly weakened tropical depression later passed near capital storm emerged indian_ocean december time system disorganized day estimated dissipated assessed system intensified slightly turned sharply southwestward dissipating madagascar december december tropical disturbance formed near initially tracked south southeast turning southwest later day system intensified moderate tropical storm status prompting storm gradually intensified intense tropical cyclone reaching peak winds mph december maintaining intensity hours weakened cyclone status turned south southeast december storm passed mauritius later resumed south southwest trajectory executing small loop turned southeast dissipated december mauritius produced mph wind gusts heavy rainfall reaching high winds caused roof damage people injured island caused power outages damaged telephone network damage estimated million million usd passing produced mph winds dropped rainfall moderate tropical storm began tracking tropical disturbance channel january day agency estimated system intensified moderate tropical storm prompting storm moved southward madagascar western coast reaching peak winds mph landfall january north mouth crossed southern portion country emerging near indian_ocean winds associated storm reached mph west coast mph east coast developing ridge caused slow reached open waters executing partial loop southwest turning south dissipating january severe tropical storm developed january northeast coast madagascar ridge north storm tracked generally westward later southwestward january struck eastern madagascar crossing country strengthened channel peak winds mph january storm landfall southern slowly weakened land crossed later eastern south_africa dissipating february dropped heavy rainfall capital accounted annual total floods country destroyed small dams left widespread crop damage summer harvest later rains caused worst flooding years damaged destroyed bridges disrupted transport left areas isolated days south_africa rainfall peaked flooded river basins notably altered course storm flooding caused reach capacity waters released maintain structural integrity additional flooding occurred forcing thousands evacuate region caused widespread flooding damaged houses roads crops leaving million damage deaths southeastern africa moderate tropical storm circulation developed south january classified tropical disturbance given quickly intensified moderate tropical storm strengthened winds mph maintaining southwest track passed southeast mauritius storm produced wind gusts mph heavy rainfall reaching moving away islands dissipated january moderate tropical storm origins unclear result data disruption satellite imagery coverage estimated tropical low formed january west australian basin named storm gradually intensified moving west january cyclone crossed southwest indian_ocean time renamed basin storm reached peak winds mph continued moving southwest dissipating january moderate tropical storm january circulation developed island initially system moved southwest followed turn southeast given storm attained winds mph january weakened tropical disturbance day time turned west madagascar coastline february intensified moderate tropical storm day landfall near soon southeast emerged indian_ocean near fort february storm dissipated polar trough land dropped light rainfall severe tropical storm tropical depression formed february south week system remained weak changed directions times eastward movement turned northwest curved southeast later began steady track southwest february intensified moderate tropical storm quickly attained peak winds mph given storm passed southeast approached southeast coast madagascar turned southeast weakened dissipating february severe tropical storm february began tracking tropical disturbance channel near system tracked generally south southwestward gradually intensifying given storm reached peak winds mph february passing near executing small loop turned southeastern african coastline approached eastern coasts weakened system ridge caused storm turn east northeast dissipating february early duration produced winds mph passing west coast madagascar offshore south_africa dropped heavy rainfall coast weeks flooded region reaching locations rains caused flooding rivers destroyed temporary bridge built coast produced high tides caused beach erosion deaths country intense tropical cyclone cyclone developed simultaneously cyclone australian basin south west indian february tropical low formed northeast steered ridge south moved generally southwestward intensified named executing loop crossed south west indian_ocean february crossing basin storm renamed time cyclone attained peak winds mph moved generally southwestward weakened cyclone status february day turned southeast later dissipating february intense tropical cyclone tropical disturbance formed near april subsequently moved westward intensifying moderate tropical storm days later given storm gradually intensified intense tropical cyclone april reached winds mph making landfall extreme northern madagascar near diego weakened entering channel briefly intensified april day passing near cyclone turned southeast striking madagascar near quickly crossed country quickly weakened tropical disturbance emerging indian_ocean east coast madagascar system intensified moderate tropical storm dissipating april northern madagascar produced wind gusts mph destroyed city diego people left homeless area deaths western madagascar cyclone dropped rainfall hours damaged rice fields region causing widespread river flooding storm destroyed storm struck country caused million damage deaths people injured left homeless affected winds mph left homeless left widespread damage death reported island
1983–84 South-West Indian Ocean cyclone season