pacific hurricane season pacific hurricane season saw tropical cyclones bring significant flooding hurricane season officially started eastern pacific june central pacific lasted november regions dates conventionally period year tropical cyclones form northeastern pacific_ocean total named storms hurricanes developed season slightly averages named storms hurricanes respectively addition tropical depressions formed eastern pacific time second recorded pacific hurricane season saw higher total storms season affected land passed south hawaii resulting million damage deaths struck damage minimal systems near location landfall brought considerable flooding great plains overall flooding event resulted million damage worst effects recorded oklahoma strongest storm season attaining peak winds mph seasonal summary activity area responsibility average tropical depressions short record set storm formed area responsibility tropical depression cyclones entered area responsibility area responsibility systems formed storms normal addition hurricanes reported season average average number major hurricanes category higher saffir simpson hurricane wind scale reported season began formation hurricane ended dissipation tropical depression october spanning days nearly weeks shorter pacific hurricane season season days longer average issued tropical cyclone advisories issued times day utc hurricane_hunters flew storms newton newton conducted environmental research cyclone addition provided excellent satellite coverage months june named systems developed july tropical storm hurricanes formed following month tropical systems developed end season tropical cyclone activity declined somewhat storms formed september formed october month november moderate present season water temperatures normal addition warm phase time period tropical cyclones landfall landfall near cabo bringing minor damage storm hurricane brushed cabo san lucas later moved inland caused minimal impacts landfall remnants described worst floods oklahoma history flooding affected counties oklahoma resulted total million damage final storm landfall hurricane season hurricane produced flooding damage addition came close hawaii require hurricane watch reported total damage million storms hurricane pacific hurricane season tropical disturbance formed tip baja california sur utc circulation began organized upgraded disturbance tropical depression morning approximately hours tropical depression system upgraded tropical storm storm season moving southeast cyclone abrupt change direction turning north strengthened hurricane near coast mexico reaching peak intensity mph turning southeast system quickly weakened tropical depression regained tropical storm strength dissipate day rainfall spread atlantic pacific mexican coasts peaking tropical depression tropical disturbance formed disturbance moving slowly upgraded tropical depression depression began weaken hours later final advisory released june mexico received rainfall falling yucatán_peninsula worst rain occurred precipitation fell peaking rest country hit rainfall tropical storm tropical disturbance originated june disturbance moved west northwest mph weak upper level high tropical depression season june depression intensified tropical storm day kept strength hours weakening depression moved cooler waters convection dissipated ceased advisories june situated roughly south hurricane june days tropical storm dissipated tropical disturbance developed south later day circulation defined upgrade disturbance tropical depression winds reached mph upgrade system tropical storm june located coast mexico strengthened hurricane utc june eye evident satellite imagery hurricane reached peak intensity mph june utc passed moved cooler water enabled hurricane weaken rapidly june tropical depression released final advisory utc day system dissipating tropical storm fifth tropical cyclone season formed tropical disturbance july moving northwest mph disturbance entered warmer waters strengthening rapidly disturbance upgraded utc july turning west northwest depression strengthened tropical storm july peaked mph stormed continued northwest hours reached waters began weakening trend clouds spread northward states arizona california july cyclone dissipated july hurricane afternoon july tropical depression formed thousands miles west mexico hours strengthened tropical storm july intensified hurricane located favorable environment continued strengthening major hurricane season july hurricane entered area responsibility near peak strength mph category hurricane hurricane west passed south hawaii weakened tropical storm july july weakened depression storm dissipated days later advance national_weather_service issued hurricane watch high surf advisory people evacuated homes huge waves crashed shores afternoon july high waves washed away homes severely damaged dozens beach resort total damage million million usd deaths reported storm drowned offshore hurricane frank began monitoring tropical disturbance located southwest utc july hours later disturbance upgraded tropical depression initially moving west northwest upper level low ridge mexico storm turned west upper level low changed direction july depression upgraded tropical storm frank turning west northwest frank reached hurricane intensity early july storm quickly developed defined eye hours later reached peak intensity moderate category hurricane winds mph maintained intensity hours subsequently hurricane began rapidly weaken sea surface temperatures wind shear soon increased accelerating weakening process july frank reduced tropical storm intensity long weakening depression storm entered area responsibility wind shear increased entering region frank moved slightly cooler water transitioned extratropical cyclone august tropical storm august tropical depression developed open ocean west mexican coastline hours later strengthened tropical storm weakening depression august accelerated rapid speed mph fast speed maintain closed circulation degenerated non cyclonic disturbance august disturbance kept rapid forward motion crossed entered western pacific reformed reached peak intensity severe tropical storm august merged system seven tropical cyclones exist tropical cyclone basins pacific_ocean tropical storm howard tropical wave crossed belize mid august tropical disturbance developed wave south acapulco august day system moved offshore moving west northwest south upper level high system classified tropical depression day south hours later depression reached tropical storm intensity turning northwest trough failed intensify minimal tropical storm strength passing south baja california peninsula storm rapidly moved cooler waters howard weakened tropical depression utc august water howard dissipated rainfall southern coast reached places totals excess isolated locations north rainfall scattered maximum rainfall near southern country tropical storm isis tropical disturbance developed south utc august hours later disturbance upgraded tropical depression august depression intensified tropical storm isis day peaking moderate tropical storm utc august isis weakened depression waters early august located west mexican coast tropical cyclone dissipated later day hurricane august tropical disturbance formed south south satellite imagery began signs developing circulation disturbance tropical depression august intensified tropical storm hours later southwest ridge began turn west northwest despite increase forward speed tropical storm underwent rapid intensification reaching hurricane intensity utc august hours later reached category strength briefly major hurricane august rapidly weaken category hurricane late august sharply turned north eventually northwest early august resumed intensification regaining category intensity utc passing midway storm reached peak intensity mph moving beneath ridge hurricane turned west subsequently weakened category hurricane briefly intensifying category storm resumed weakening increasing wind shear late august hurricane weakened directly category hurricane shortly downgraded category hurricane managed maintain marginal hurricane intensity hours utc august announced weakened tropical storm shortly turned west northwest upper level trough waters system continued weaken wind shear increased august weakened depression dissipated day southwest southern_california waves high areas prompting issue high surf advisory brought highest waves summer southern california tropical storm late august tropical disturbance formed east southeast hurricane nearly south baja california peninsula moving slowly west disturbance began develop defined circulation respectively upgraded tropical depression august passing south depression strengthened tropical storm cyclone forward speed increased subsequently reached peak intensity maintaining intensity hours rapidly weakened cold water downgraded depression utc september dissipated day miles west baja california peninsula tropical storm westward moving tropical wave increased thunderstorm activity soon organizing tropical depression september time upgrade located west mexican coast moving west depression soon intensified tropical storm turning west northwest peaked intensity moderate tropical storm combination strong wind shear cold water began slow weakening trend entering area responsibility utc september weakened tropical depression unable maintain closed circulation final advisory issued tropical storm tropical disturbance developed september september warm waters south acapulco september classified system tropical depression rapidly moving west depression embedded deep easterly flow system attained tropical storm intensity utc september received turning west northwest accelerated began slow intensification trend peaked high end tropical storm utc september upper level low introduced strong wind shear began fall apart immediately turning north slowing dissipated september hurricane newton tropical disturbance tropical depression september intensification slow depression reach storm status september paralleling coast newton steadily newton strengthened hurricane september september newton slammed cabo entering hurricane newton attained peak intensity mph shortly newton moved inland mainland mexico land newton dissipated september making landfall baja california peninsula moderate rainfall recorded hurricane second landfall damage minor roofs ripped homes trees utility poles downed high winds injuries fatalities reported association newton newton remnants later combined cold produce heavy rainfall downed power lines kansas_city leaving customers power hurricane hurricane originated stationary tropical disturbance upgraded tropical depression september despite poorly defined circulation cyclone intensified tropical storm hours formation steadily gaining strength reached hurricane intensity september shortly hurricane entered area responsibility formation eye reached peak intensity mph maintaining peak intensity hours hurricane began encounter strong wind shear subsequently weakened rapidly lost hurricane status utc september system weakened tropical depression september tropical depression dissipated day hurricane tropical disturbance developed september mexican coastline disturbance upgraded tropical depression utc september tropical depression moved west northwestward lured upper level trough near northern mexico utc september depression tropical storm southwest acapulco roughly hours later hurricane hunter flight found winds mph upgrading hurricane hurricane peaked category hurricane october turned northwest headed hurricane intensify presence mid level wind shear dry air outer eyewall moved cabo resultant land interaction believed slightly weakened inner core hurricane moved ashore near winds mph storm weakened moved land going mexico entering united_states dissipated october lake michigan rainfall tropical cyclone significant mexico united_states light rain fell cabo rains peaked acapulco near area landfall strong winds knocked trees caused city services united_states rainfall peaked inches kansas oklahoma weather station recorded inches september set record highest daily precipitation station statewide flooding affected counties oklahoma resulted total million damage described worst floods oklahoma history flooding resulted people homeless illinois resulted record discharge rates streams creeks subsequently nearly filled capacity example mississippi_river reached fifth highest flood stage record hurricane tropical disturbance moved westward offshore nicaragua declared tropical depression october early afternoon day ship reports indicated formation tropical depression close land cyclone moved quick pace west northwest south warm core ridge early morning october tropical storm morning october developed hurricane south acapulco vigorous upper trough deepening offshore baja california began curve miles system struck marginal hurricane october low level center rapidly dissipated frontal low developed western gulf_of_mexico moved southeastern texas later original upper level circulation maintained northeast movement bringing rainfall affecting sparsely populated area highest reported winds land station mph produced flooding damage impact limited flooded homes factories crop damage beach erosion yacht sunk remnants hurricane produced heavy rainfall central southern united_states texas total reported storms addition named storms tropical depressions season failed reach tropical storm strength second tropical depression seven began large area thunderstorms near hurricane july moving steady pace cyclone failed intensify attained peak intensity mph cool sea surface temperatures proximity eventually caused depression dissipate late july tropical depression formed july located southwest baja california peninsula initially moving west northwest upper level high depression peaked winds mph dissipated july tropical disturbance formed july circulation developed days later classified tropical depression cyclone remained tropical depression days moving area responsibility utc july slow weakening trend began depression continued west speeds mph utc july poorly organized west southwest final advisory issued tropical depression formed july possibly remnants tropical depression dissipated days earlier east depression tracked westward fairly rapid forward speed mph failed develop past depression stage passed south july july utc dissipated southwest final advisory issued area disturbed weather developed circulation august upgraded tropical depression nearly south baja california peninsula drifted slowly northwest dissipated near august peak maximum sustained winds estimated mph tropical depression seventeen formed september east dissipated september cold water tropical storm cyclones season formed westward moving tropical disturbance disturbance moved mph developing circulation declared tropical depression utc september depression lasted hours dissipating likely close distance tropical depression final tropical depression season formed october utc near line strong wind shear stationary storm dissipated hours formation official systems developed national_hurricane_center remarked unnamed tropical storm formed november storm names following names named storms formed eastern pacific names retired season list season storms named time previously old year lists central pacific names names assigned marked gray
1986 Pacific hurricane season