pacific typhoon season pacific typhoon season official bounds ran year round tropical cyclones tend form northwestern pacific_ocean december dates conventionally period year tropical cyclones form northwestern pacific_ocean tropical storms formed entire west pacific basin assigned tropical depressions enter form philippine area responsibility assigned result storm having names total tropical depressions formed month time span tropical storms storms reached typhoon intensity reached super typhoon strength considered tropical cyclones warning centers treated real time originated tropical cyclones formed august busiest month season tropical cyclones moved philippines season deaths attributed caused wayne summary thirty tropical storms formed tropical depressions reached typhoon intensity reached super typhoon strength broken month tropical cyclone formed february april june july seven august september october november forming december considered tropical cyclones fact operationally treated system cyclone tropical cyclones moved philippines season struck mainland china struck korea crossed japanese coast wayne accounted majority death toll season tropical cyclones accounted percent annual rainfall hong_kong year storms initial disturbance formed degrees equator monsoon trough january succeeding days thunderstorm area increased size decreased significantly january convective area moved slowly westward increased coverage organizing tropical depression february moving course east philippines gained tropical storm status february typhoon strength february northwest subtropical ridge westerly winds increased aloft vertical wind shear weakened tropical storm lost tropical characteristics february drifting slightly east northeastward low pressure area dissipated tropical disturbance formed near trough april south guam system slowly increased organization tropical depression april system quickly developed typhoon april moving northward system reached peak intensity april subtropical ridge built northwest steering west south westerly vertical wind shear led weakening trend begin april april low level circulation exposed longer having thunderstorms near center remnant low drifted westward dissipating super typhoon forming twin cyclone formed southern hemisphere initial disturbance developed monsoon trough south guam moving eastward system slowly developed tropical depression tropical storm moved destructive cyclone light damage caused storm island declared major disaster area june american government continuing intensify typhoon turned northwest rapid intensification continued super typhoon peaking intensity north northeast weakening tropical storm evolving extratropical cyclone later day tropical storm mac system moved generally east northeast life cycle forming near monsoon depression initial tropical disturbance moved sea slowly organizing tropical depression mac quickly tropical storm turned northeast paralleling coast taiwan mac turned east northeast upper level westerly winds increased causing vertical wind shear led mac weakening tropical depression dissipating typhoon nancy broad area convection formed southeast mid june convection formed tropical depression june east philippines tropical storm nancy named quickly strengthened typhoon max winds striking northeastern taiwan departing island nancy weakened tropical storm strength moving north nancy passed turning extratropical accelerating northeastward torrential rains fell south_korea result flooding people killed acres km2 farmland destroyed tropical storm owen forming tropical disturbance southwest june moving west northwest system gradually better organized june disturbance organized tropical depression east philippines taiwan owen developed tropical storm reaching maximum intensity june east northeasterly winds aloft led vertical wind shear weakened owen moving north northeast southern japan system low level circulation devoid thunderstorms dissipated july super typhoon developed july east philippines steadily strengthened reach peak knots super typhoon july continued westward slowly weakened hit northeastern july typhoon slight weakening subtropical ridge brought northward hit southeastern china tropical storm july hong_kong winds knots rainfall totals reached millimetres fury resulted casualties million dollars damage torrential flooding upper level low westward tropical pacific ocean beginning july july tropical disturbance formed southeast upper low southwest system moved westward slowly organizing tropical depression july small system turned northwest gradually subtropical ridge east northeast system strengthened tropical storm later july typhoon july south japan turning northeast system began experience northeasterly vertical wind shear began weaken passing east okinawa system began transition extratropical cyclone process completed july near southern coast japan july tropical storm forming sea july cyclone moved northwest mainland china july maintaining circulation turned westward dissipating july system recognized tropical storm severe tropical storm sarah developing july system developed moved westward tropical storm july august mid level circulation center crossed sea surface circulation left east philippines sarah broad circulation center difficult locate began moving northeast east august intensified peak intensity sarah moved east evolved extratropical cyclone fourteen died japan sarah severe tropical storm august august tropical storm existed degraded tropical wave moving rapidly westward days later tropical storm typhoon august time tropical disturbance developing west tropical storm tip 11th tip underwent interaction causing smaller loop larger storm tip headed north weakened tropical depression august absorbed tip large band august august tropical storm system formed sea august moved northwest mainland china dissipating august hong_kong winds knots received millimetres rainfall depression extensive flooding occurred western killing people considered system tropical depression typhoon tip typhoon august east tropical disturbance developed tropical storm tip august tip underwent effect causing smaller loop larger storm tip headed north absorbed tip large band august tip strengthened typhoon reached peak intensity winds vertical wind shear caused system weaken august tip extratropical persisted remnant low days typhoon intense extensive monsoon trough spawned tropical depression august drifted southeast relocating times formative stages august upgraded tropical storm operationally storm continue eastward continuing relocate broad monsoon trough storm august weakening post analysis suggested storm turned west dissipated new separate storm formed east august maintained system single storm drifted northward upper level ridge forced storm east providing upper level outflow strengthen typhoon august august attained winds mph weakening ridge forced typhoon west path took days typhoon slowly weakened hit okinawa august mph typhoon turned northeast hit south_korea august minimal typhoon extratropical august total people killed storm moderate heavy damage path far north soviet far_east damage totalled million dollars south_korea longest lasting system record began long life august having formed monsoon trough drifted southwest looped northwest tropical storm august wayne turned northeast typhoon august hong_kong winds knots typhoon passed offshore southeastern china hit western taiwan august wayne turned south southwest vertical shear caused wayne weaken depression august wayne turned northeast rotating accelerated away wayne drifted northeastward tropical storm august wayne turned southward typhoon august wayne passed close northern september turning west days later moving quickly westward wayne reached peak knots winds passages hong_kong total millimetres rainfall accumulated cyclone hit northern september entered final landfall northern vietnam later day knots tropical storm day wayne dissipated vietnam advisories longest lasting system history wayne brought torrential rains path philippines taiwan southeastern china vietnam fatalities vietnam tens thousands left homeless million dollars damage attributed september tropical storm originating subtropical west central pacific large cyclone moved westward point south japan tropical storm soon afterward system central japan september evolved extratropical cyclone returned northern pacific ocean september system recognized tropical storm tropical depression developed area persistent convection southwest early august tropical depression formed august southeast guam upgraded tropical storm day passing south island steadily intensified peak weakened striking taiwan island winds heavy rains flooding taiwan killed people agricultural damage totalled million usd million usd departing continued north northeast dissipating initial tropical disturbance formed near september system moved west northwest tropical depression september tropical storm september thirteen perished fishing vessel passing pagan ben passed nearby ben turned north northwest day half moving upper level cyclone vicinity resuming west northwest track september vertical wind shear caused strong north northeast winds aloft weakened ben minimal tropical storm intensity september ben entered favourable environment achieving typhoon intensity september rounding southwest portion subtropical ridge ben northeast september moving east japan vertical wind shear increased strengthening winds aloft southwest ben subsequently weakened tropical storm september transitioning extratropical cyclone later day typhoon initial tropical disturbance noted east southeast september system tracked north west consolidating slowly tropical depression september tropical storm october passing turned northwest intensified typhoon october winds peaked knots passed island heavy rains fell guam amounts totalled millimetres millimetres moving break subtropical ridge rapidly strengthened turned north northeast october maximum sustained winds reached knots vertical wind shear increased strengthening southwest winds aloft cyclone weakened tropical storm october evolving extratropical cyclone october tropical storm initially noted tropical disturbance october system moved slowly west northwest south subtropical ridge tropical depression october crossing philippines depression caused heavy rainfall flooding emerged sea developed tropical storm october development slow strong upper level winds northeast displacing thunderstorms west southwest center continuing track north west landfall vietnam dissipated moved vietnam border october total perished damage totalled million dollars initial tropical disturbance formed west monsoon trough october system moved westward nearly week significant development tropical depression october tropical storm october cyclone turned west northwest moving central philippines sea turning northerly ellen intensified typhoon paralleling west coast october october ellen track increasingly westerly building surface high pressure area north weakening began westerly winds aloft land interaction china ellen dropped tropical storm strength october cyclone moved south hong_kong north mainland china october hong_kong winds knots neared border vietnam china ellen dissipated october typhoon initial tropical disturbance formed near october moving track east asia small system moved west northwest organized tropical depression october tropical storm later day late october intensified typhoon day typhoon reached peak intensity knots passed near island building left standing communications eliminated south southeast winds aloft increased west slowly weakened tropical storm october evolving extratropical cyclone october noted tropical disturbance east monsoon trough october system moved north west slowly developing system evolved tropical depression october tropical storm october cyclone reached peak intensity crossed central philippines october emerged sea october georgia landfall vietnam crossed thailand system subsequently dissipated october tropical depression severe tropical storm forming tropical disturbance near october system moved westward low latitude eventually organizing tropical depression november south guam system moved north west central philippines emerged sea strengthening tropical storm november moved westward making landfall vietnam november dissipating november severe tropical storm initially tropical disturbance november system moved south west november system began tracking north west system organized tropical depression november tropical storm november moving philippines days crossed central portion archipelago november interaction islands weakened system tropical depression emerging sea strengthening tropical storm november clockwise loop weakening tropical depression november moving south strong southwest winds aloft depression moved south southwest dissipating november died cargo ship sank near initial tropical disturbance formed november south guam moving west northwest system organized tropical depression november tropical storm november joe east philippines weakness subtropical ridge strengthening typhoon november east taiwan joe weakened tropical storm strong southwest winds aloft november tropical depression november turning southeast remaining low level circulation continued weakening dissipating november november tropical depression tropical depression formed southern sea november dissipating following day making landfall neighbouring land mass depression acknowledged year end summary super typhoon kim initial tropical disturbance formed south november small system developed quickly tropical depression later day tropical storm november typhoon november kim turned northwest later day weakness subtropical ridge strengthening high pressure system north forced westerly track december kim super typhoon soon afterward cyclone moved north knocking electricity water damage island totalled million dollars retaining super typhoon intensity december system weakened turned northwest december weakness subtropical ridge high pressure system north turning kim west december december kim cyclonic counter clockwise loop strong surface high building north completed december loop kim weakened tropical storm tropical depression status regained december kim moved northwest system east taiwan dissipating december severe tropical storm initial tropical disturbance formed november wake kim near system moved west northwest developing tropical depression tropical storm december remained tropical storm day weakening tropical disturbance december vertical wind shear caused upper trough nearby northwest depression passed guam december south december extratropical cyclone december long tracked system initial tropical disturbance led noted near december moving north west disturbance slow organize tropical depression december southwest system strengthened tropical storm december typhoon december early december peaked intensity turning south west strong surface high north december moved southern philippines accelerated weakening trend december regained tropical storm status soon moving sea cyclone weakened tropical depression late december depression moved westward day dissipating december circulation aided global journey voyager aircraft went circle earth tank fuel typhoon initial tropical disturbance formed near december initially moved west northwest system slowly organized tropical depression december tropical storm december turned west strengthening ridge high pressure north cyclone steadily strengthened days initially hampered strong east winds aloft storm moved south guam wind gusts knots recorded island typhoon december day half intensification continued december strong surface high pressure system turned southwest led slow weakening cyclone regained tropical storm strength december turning west crossed southern philippines december january weakening tropical depression emerged sea strong southeast winds aloft prevented redevelopment depression remnant circulation turned northwest dissipated january south hong_kong storm names season named tropical cyclones developed named determined tropical storms names contributed revised list started philippines uses naming scheme tropical cyclones area responsibility assigns names tropical depressions form area responsibility tropical cyclone area responsibility list names given year prove insufficient names taken auxiliary list published year season starts names retired list season list season uses naming scheme starts filipino alphabet names filipino female names ending etc names assigned going use marked gray
1986 Pacific typhoon season