south west indian_ocean cyclone season south west indian_ocean cyclone season fifth active record france office island tracked tropical disturbances intensified moderate tropical storm systems proceeded attain tropical cyclone status reaching minute maximum sustained winds mph american based tracked storms basin activity normal powerful walker circulation increased convection neighboring australian basin suppressed activity western indian_ocean result storms developed near entered australian basin crossing enter south west indian_ocean series short lived systems occurred september november northeastern portion basin followed named storm renamed crossed australian region late november short lived disturbance late december tropical disturbance january killed people brought heavy rainfall later month tropical cyclone took erratic track madagascar killing people brushed island southwest coast february small short lived unnamed tropical storm presented difficulties warning agencies determining structure intense tropical cyclone strongest system season attaining peak minute winds mph open waters eastern portion basin tropical storm brought months worth rainfall drought ridden island reaching mountainous peaks rains led flooding landslides killed people directly indirectly deaths occurred saturated cliff collapsed coastal road final storm dissipated april previously entering australian basin seasonal summary meteorological office official south west indian_ocean tracked named tropical cyclones east coast africa south equator joint united_states navy united_states_air_force task force issues tropical cyclone warnings region issued advisories storms season tropical disturbances season monitored agency began operations early 1990s season second number disturbances received warning season advent satellite imagery season fifth active terms storm days number cyclones systems attained intensity moderate tropical storm minute sustained winds mph average days moderate tropical storm active average tropical storms attained tropical cyclone status minute winds mph days systems active half average days continuing trend season fewer stronger systems season similar season late starts named storm drought conditions basin low activity named storm occur late february time latest date naming began general storms season formed basin periphery north systems developed unusual occurrence overall lack activity strong walker circulation indonesia increased convection australian region suppressed convection indian_ocean typically major contributor tropical cyclogenesis rarely active conditions generally favorable february march tropical storms occurred general lack thunderstorms basin caused drought like conditions airport recorded rainfall november january record minimum island recorded highest average atmospheric pressure november april storms intense tropical cyclone middle november westerly wind burst produced area convection southwest sumatra spawned circulation november days later classified system tropical low north low moved southwestward quickly intensifying prompting storm moved southwestward intensified favorable water temperatures atmospheric conditions reaching winds mph november east track shifted nearly south eye moved dividing line australian south west indian_ocean basins early november cyclone crossed renamed time system beginning weaken cooler waters increased wind shear estimated peak minute winds mph basin making intense tropical cyclone consecutive year november storm intensity designated estimated minute winds mph building ridge south turned storm west northwest november increased wind shear exposed circulation convection indicative rapid weakening day downgraded tropical cyclone status day storm weakened tropical depression status nearly convection gone prompting cease issuing advisories circulation remained defined temporary increases convection stopped issuing warnings december passed south circulation continued westward visible north madagascar december tropical disturbance produced area convection northeast madagascar december association circulation january system moved northern madagascar subsequently entered continued quickly southwest passing north classified tropical disturbance late january continued intensifying organizing moving ashore near system nearly attained tropical depression stage system followed country coastline bending southward capital january disturbance moved offshore system soon moved overland dissipated later day system brought heavy rainfall reaching rains resulted flooding drought conditions rains caused exceed banks flooding roads meter deep halting traffic people died floods tropical cyclone pulse monsoon spawned area convection westward circulation evident january signalling formation tropical disturbance poor trade winds prevented initial organization system tracked southeastward ridge steered disturbance southwest january bringing southeast light wind shear system developed small area convection defined circulation early january upgraded disturbance tropical depression classified tropical cyclone later day upgraded moderate tropical storm giving brief period strengthening storm weakened increased shear cooling track shifted south southwest paralleling madagascar east steered ridges east west stalled turned west northwest late january downgraded storm tropical depression late day circulation struck eastern madagascar north circulation weak approach land large increase convection time landfall circulation difficult locate land briefly halted issuing advisories january day circulation emerged westward low wind shear good outflow allowed late january system reorganized moderate tropical storm day reissued advisories storm east coast weak steering ridge southeast caused storm area favorable conditions late february attain tropical cyclone status developing eye center organizing convection approaching trough caused storm accelerate southeastward bringing northeast late february estimated peak minute winds mph estimated minute winds mph eyewall replacement cycle increased wind shear caused weaken february cyclone passed southwestern madagascar storm accelerated weakened transitioning extratropical cyclone february remnant system absorbed approaching trough days later path storm dropped heavy rainfall formative stages spread rainfall mauritius recorded rainfall hours eastern madagascar storm dropped hours storm coastal rainfall causing river levels increase recorded rainfall hours cyclone maintained intensity final approach southwestern madagascar bringing estimated wind gusts mph coast recorded wind gusts mph addition heavy rainfall flooded villages killed people southern madagascar leaving people homeless severe tropical storm february broad low pressure area developed east madagascar days system dropped heavy rainfall recorded rainfall hours airport mauritius recorded rainfall hours heaviest precipitation occurred short time year rainfall rates station capital recorded hours hours recorded precipitation weak low pressure area began organizing trough february organizing classified tropical disturbance day eastern coast madagascar small system developed concentrated area convection diameter followed powerful hot tower spurred development structure rapidly organized february eye like feature center thunderstorms utc day classified tropical cyclone upgraded moderate tropical storm forecasters initially assessed structure akin convective vortex small short lived system uncertainty winds surface result disagreement estimated peak minute winds mph assessed weaker storm agency responsible officially naming systems result severe tropical storm unnamed moving southeastward flow trough small storm began weakening february strong northwesterly wind shear caused convection circulation day storm passed north mauritius time center exposed intensity dropped tropical depression status turned northwest steered low level trade winds following previous path late february discontinued advisories days later circulation dissipated east coast madagascar intense tropical cyclone active phase julian increased convection northeastern periphery basin produced distinct low pressure area february east convective structure organized aided good outflow moderate wind shear ridge southeast steered nascent system slowly southwest area increasingly favorable conditions february system classified tropical disturbance day named disturbance intensifying system february initiated warnings storm tropical cyclone day upgraded moderate tropical storm storm stalled february weakness ridge day upgraded storm equivalent hurricane status minute winds mph time eye developed center increasingly organized convection upgraded tropical cyclone status february continued favorable conditions including minimal wind shear powerful outflow allowed intensify progressing slowly southwestward late february upgraded storm intense tropical cyclone eye reached diameter based storm presentation satellite imagery estimated peak minute winds mph february day estimated peak minute winds mph unfavorable conditions cooler waters stronger wind shear caused structure rapidly peak intensity march storm weakened tropical cyclone status soon circulation exposed convection prompting advisories stalled day reached reached col ridges result track shifted northeast later northwest building influence ridge southeast environmental conditions prevented significant convection circulation turned westward indian_ocean redevelopment turned southwest passing near march stopped tracking day circulation dissipated march southeast madagascar severe tropical storm beginning march monsoon active northeast madagascar time season active convection persisted northeast island broad system low pressure located northeast madagascar near south closer structure resembled monsoon depression low pressure areas consolidated distinct march system originated southern low systems continued interact absorbed disturbance wind field large ranging diameter little convection near centers despite lack organization mauritius named system tropical storm march threat presence gale force winds structure slowly evolved tropical cyclone convection concentrated march passed northwest disorganized convection south day initiated advisories system tropical cyclone storm continued slowly southwest turned southeast march rounding ridge despite accelerating area cooler waters structure like tropical cyclone march estimated peak minute winds mph making severe tropical storm estimated peak minute winds mph quickly transitioned extratropical cyclone interacted cold south completing transition march circulation gradually lost definition dissipating march formative stages brought heavy rainfall reaching hours gale force winds gusts mph mauritius winds reached mph rainfall station southeastern portion island gale force winds affected nearly days storm structure gusts peaked mph coast dropped equivalent months worth rainfall peaking grand days approached record totals set volcanic peak crater recorded hours coastal areas away recorded rainfall time storm caused power outages island people died generator inside home storm person drowned floods people drowned flooding accidents island weeks storm floods wrecked homes river flooding caused landslides occurred weeks storm saturated grounds march cliff collapsed coastal road killing people severely injuring road reopened months later addition damaging effects rainfall drought conditions moderate tropical storm end march active phase julian caused increase convection northeastern portion basin low pressure area formed april neighboring australian basin system soon moved northwestward cross low days unable intensify insufficient moisture region april designated system tropical disturbance agency discontinued advisories day april low crossed australian basin turn southwest april steered ridge southeast time system passed northwest april designated system tropical cyclone day system intensified tropical depression convective structure improved amid favoring conditions early april depression crossed south west indian_ocean time system good outflow south lack moisture prevented significant development late april upgraded system assessing peak minute winds mph estimated minute winds mph increasing wind shear cooler waters resulted diminished intensity convection causing weaken downgraded storm tropical depression status april circulation exposed day discontinued advisories circulation dissipated april signaling end season storms disturbances season developed northeastern portion basin association near trough failed develop wind shear beginning september active northeastern portion basin accompanied small circulation scattered convection located presence strong wind shear circulation exposed convection sign unfavorable conditions warm waters fueled increase convection classified system tropical disturbance september day issued continued shear caused weakening disturbance tracked southeastward september discontinued advisories system circulation exposed turning west northwest circulation began dissipating september second disturbance classified october east system circulation associated convection proceeded southwestward duration convection consolidated developed curved rainbands upgraded system mph tropical depression october period organization occurred brief decrease wind shear utc october classified system tropical cyclone estimating peak minute winds mph increasingly unfavorable conditions caused convection diminish late october discontinued advisories increasing disturbance circulation remained organized devoid convection monitored center october tropical depression formed november east southeast moved generally southward reaching peak winds mph dissipating november simultaneous depression tropical depression entered basin november australian region classified winds mph depression weakening time discontinued advisories november december began monitoring tropical low western portion australian basin moved eastward south west indian_ocean basin system moved southwestward later southwest crossing causing designate tropical depression time circulation partially exposed convection organized day spurred designate tropical cyclone december winds mph systems season strong shear caused system weaken discontinued advisories december followed suit day system continued southwest december reissue advisories shear weakened convection discontinued advisories december system short distance west northwest tropical disturbance briefly classified march located north developing tropical storm disturbance moved quickly southeast circulation ultimately absorbed larger storm storm names tropical disturbance named reaches moderate tropical storm strength tropical disturbance reaches moderate tropical storm status west sub regional madagascar assigns appropriate storm tropical disturbance reaches moderate tropical storm status sub regional mauritius assigns appropriate storm new annual list year names retired
2005–06 South-West Indian Ocean cyclone season