pacific hurricane season pacific hurricane season average pacific hurricane season featuring major hurricane season officially started eastern pacific june central pacific ended november dates conventionally period tropical cyclones form region tropical cyclone season developed final system year dissipated october unusually strong wind shear activity fell short long term average total named storms hurricanes major hurricane time featured second lowest value accumulated cyclone energy ace index reliable records began tropical cyclones crossed central year activity average systems impact season relatively minimal early june tropical moved ashore northwest mexico guatemala border causing million usd damage deaths late july passed south island hawaii weakening tropical depression light rain increased surf resulted days later passed offshore coastline southwestern mexico killing causing minimal damage followed similar track mid august producing gusty winds light precipitation hawaii hurricane early september produced torrential rainfall southwestern mexico killing causing million damage baja california received moderate rains hurricane mid september damage fatalities reported mid october tropical storm passed offshore coastline southwestern mexico deaths reported mexico mainland storm capsized ship people board recovered dead reported missing overall season ended million damage deaths seasonal summary preseason forecast released outlook central pacific hurricane season predicting total tropical cyclones form cross basin typical season systems cross form day later climate prediction center released seasonal prediction east pacific hurricane season predicting total named storms hurricanes major hurricanes average activity expected result conditions continuation reduction activity beginning seasonal activity tropical cyclone activity totaled named storms hurricanes major hurricane pacific hurricane season values fall long term average named storms hurricanes major hurricanes main contributing factor average activity average wind shear overall energy output reflected ace index units average units time second lowest value observed reliable records began tropical storms barbara developed marking time instance tropical storm developing month official records began june tropical depression developed making years tropical storm form month following month terms ace considered year date satellite era began september season fell second year date average activity continued remainder year storms tropical storm genesis attributed tropical wave crossed africa wave remained poorly organized moved atlantic_ocean caribbean_sea mid disturbance crossed central_america emerged convection shower thunderstorm activity gradually began increase defined center led formation tropical depression utc approximately south southern tip baja california following designation depression slow organize result moderate easterly shear utc system gained organization considered tropical storm attaining peak intensity winds mph minimum barometric pressure hpa inhg increasingly stable air higher wind shear caused begin weakening trend utc weakened tropical depression utc june degenerated non convective remnant low remnant low continued generally westward dissipation days later tropical storm barbara tropical wave emerged western coast africa emerging eastern pacific system acquired organization considered tropical depression utc south southeast environment weak steering currents storm better organized evidenced improving satellite appearance formation curved band southeast quadrant utc depression upgraded tropical storm utc june increased northerly wind shear caused barbara weaken tropical depression intensifying tropical storm second time hours later barbara attained peak intensity winds mph minimum barometric pressure hpa inhg utc drifting northeast storm maintained intensity landfall northwest mexico guatemala border utc june rapid weakening ensued system weakening tropical depression utc low level circulation dissipated hours later marking dissipation barbara heavy rainfall exceeding caused rivers swell unspecified island separated mexico mainland bridge connecting washed away dozens families el_salvador significant flooding killed people gusts peaked mph automated weather station affected regions winds caused damage limited house roofs trees barbara caused severe crop damage totaling million million residents forced evacuate storm destroyed dozen palm guatemala tropical depression tropical wave emerged western coast africa wave entered eastern pacific june shower thunderstorm activity began increase shortly broad area low pressure formed miles south acapulco mexico days later following satellite evidence defined circulation organized convective activity national_hurricane_center upgraded disturbance tropical depression utc june attaining winds mph minimum barometric pressure hpa inhg depression began traverse cooler waters stable air caused associated convection fade away depression degenerated non convective remnant low utc june remnant low continued northwest dissipation utc june tropical depression tropical wave emerged western coast africa june reached eastern pacific july associated convection began increase days later continued slow development occurred following satellite trends disturbance upgraded tropical depression utc july tracking westward depression began waters cool support tropical cyclone environment moderate shear low level circulation ill defined exposed leading remnant low utc july west southwest cabo mexico low continued northwest dissipation utc following day tropical depression june tropical wave emerged western coast africa entered eastern pacific july shower thunderstorm activity began increase day later result tracking westward wave gradually better organized utc july disturbance acquired organization upgraded tropical depression environment moderate wind shear low level center quickly poorly defined convection dissipated turning west northwest july depression entered cooler waters increasingly stable causing system remnant low utc following day remnant low dissipated hours later hurricane tropical wave emerged western coast africa june tracked westward reach eastern pacific july system steadily gained organization declared tropical depression utc july moving slowly northwest low wind shear warm sea surface temperature environment allowed system strengthen tropical storm utc july following development curved convection band appearance eye satellite upgraded category hurricane utc day time system attained peak winds mph minimum barometric pressure hpa inhg tracked cooler waters beginning time causing system weaken quickly tropical storm strength turned west result intensifying ridge high pressure north continuing deteriorate organization utc july weakened tropical depression crossing central pacific utc july longer sustained organization considered tropical cyclone remnant low continued generally westward dissipation early july initially forecast pass hawaii tropical storm strength instead strong ridge high pressure kept system south island outer rainbands produced inches rainfall leading minor flooding simultaneously drought conditions winds gusts briefly reached tropical storm strength damage reported tropical storm tropical wave emerged eastern pacific july tracking west northwest system acquired organization upgraded tropical depression utc july positioned south mexico following formation moderate northeasterly shear significant development causing system remain tropical depression hours mid level ridge mexico caused system turn northwest shear began decrease utc july depression upgraded tropical storm attaining peak intensity winds mph minimum barometric pressure hpa inhg day later storm tracked progressively cool waters causing weaken utc july weakened tropical storm utc system longer retained organization considered tropical cyclone remnant low tracked west southwest eventually south prior dissipation utc july center storm remained offshore outer rainbands led heavy rainfall triggered substantial flooding flooded municipalities precipitation destroying dozens wooden structures heavy rains killed occurred automobile crashes flood waters covered numerous roads causing accidents approximately homes damaged rough seas heavy rain affected baja california sur damage fatalities reported tropical storm tropical wave emerged western coast africa july tracking westward intermittent bursts deep convection occurred crossed leeward_islands july associated activity remained disorganized wave crossed central_america days later emerging eastern pacific_ocean shortly july broad area low pressure formed wave axis easterly shear prevented thunderstorms developing center convective activity increased july leading formation tropical depression utc day despite unfavorable environment satellite intensity estimates increased tropical storm intensity prompting national_hurricane_center upgrade depression attained peak intensity winds mph minimum barometric pressure hpa inhg utc august continued wind shear caused weaken tropical depression low level center lost organization elongated northeast southwest august leading tropical wave utc remnants system dissipated hours later hurricane ill defined tropical wave entered eastern pacific august steadily organized attain tropical depression intensity days later environment light shear depression intensified tropical storm utc august continued organize attain category hurricane intensity utc following day eye apparent satellite continuing westward crossing central system began period rapid intensification brought peak intensity winds mph minimum barometric pressure hpa inhg utc september positioned roughly east southeast increased wind shear day caused begin slow weakening trend utc september system weakened category hurricane utc september cyclone barely category hurricane hours later weakened tropical storm low level center exposed satellite weakened tropical depression early september dissipated utc preparation cyclone issued hurricane watch tropical storm warning subsequently issued location sent transportation public works health experts region schools closed including result estimated college students sent home weakening cyclone produced light precipitation island hawaii large waves impacted south facing beaches maximum sustained wind observed reached mph fatalities reported tropical storm vigorous tropical wave emerged western coast africa august characterized abundant deep convection wave remained organization interacted upper level trough eastern caribbean_sea days later august wave split northern portion leading formation weak low southern portion continuing westward eastern pacific formation deep convection center associated convective bands disturbance upgraded tropical depression utc august circulation remained positioned northeast thunderstorm activity satellite intensity estimates supported tropical storm strength upgraded accordingly utc august attained peak intensity winds mph minimum barometric pressure hpa inhg shortly increasing wind shear decreasing sea surface temperatures caused system steadily weaken utc september system deteriorated tropical depression utc following afternoon system longer displayed organization considered cyclone remnant low continued westward dissipated hours later heavy rainfall reported state total neighborhoods flooded water town year old boy swept away swollen river hurricane poorly organized tropical wave moved eastern pacific august quickly developed tropical depression utc following day environment low wind shear depression intensified tropical storm acquiring utc august moving west northwest ridge positioned inland mexico center passed narrowly offshore producing weather coastline system moved westward continuing intensify category hurricane utc september subsequently attaining peak intensity winds mph minimum barometric pressure hpa inhg hours later approaching upper level trough caused turn northwest later day moving ashore near del cabo mexico utc minimal hurricane crossing baja california sur weakened tropical storm second landfall near mexico system moved inland quickly weakened dissipating utc september hardest hit city acapulco heavy rains led mudslides killed hurricane damaged thousands structures killed coast farther northwest woman died attempting surf waves coast baja california sur heavy rains stranded cars causing rivers overflow flooding communities damage totaled million million hurricane tropical wave moved western coast africa september continued westward reaching eastern pacific days later broad area low pressure formed wave axis september convective activity organized utc september system acquired organization declared tropical depression convective bands began form near center hours later leading improved satellite presentation overall tracking west northwestward result mid level ridge system intensified tropical storm utc september turning northwest defined eye visible satellite prompting nhc upgrade system category hurricane hours later area deep convection near center hurricane attained peak intensity winds mph minimum barometric pressure hpa inhg utc september westerly flow associated large upper level low began outflow weakened tropical storm afternoon hours convective pattern rapidly deteriorated southeasterly wind shear despite brief burst convection storm downgraded tropical depression west southwest southern tip baja california utc september associated deep convection dissipated later day turned eastward system degenerated remnant low accordingly remnant low dissipated days later continued direction initially forecasts predicted storm strike baja california peninsula tropical storm tropical storm watch briefly issued cabo accordingly shelters opened municipalities respectively contributed heavy rainfall baja california sur damage reported tropical depression thirteen tropical wave emerged western coast africa august reached eastern pacific september tracking westward little development occurred september associated shower thunderstorm activity began increase following visible satellite trends national_hurricane_center deemed disturbance organized declared tropical depression utc september located west southwest southern tip baja california environment cool ocean temperatures stable air depression failed organize turned west northwest associated deep convection dissipated leading remnant low utc september performing slow counter clockwise loop remnant low dissipated days later tropical storm formation tropical storm traced tropical wave emerged western coast africa september interacting secondary wave central atlantic days later entered eastern caribbean steadily better defined convective activity enhanced wave passed september moved inland central american shortly broad area low pressure formed wave axis september convection steadily increased utc september system acquired organization declared tropical depression hours later system intensified tropical storm turning northwest result upper level trough system attained peak winds mph minimum barometric pressure hpa inhg utc september strong wind shear began affect storm causing steadily weaken tropical depression strength utc october hours later system degenerated remnant low low miles coast baja california trough october tropical storm tropical wave exited coast africa moved westward atlantic entering eastern pacific october despite strong easterly wind shear system acquired organization deemed tropical depression utc october broad cyclonic system moved drifting south east northeast eventually northwest early october system briefly intensified tropical storm convective band wrapped circulation continued strong shear caused associated convection dissipate system weakened tropical depression utc intensifying tropical storm following day brief harsh upper level winds allowed reach peak intensity winds mph minimum barometric pressure hpa inhg increase southerly shear entrance stable caused system weaken tropical depression utc october system degenerated remnant low hours later remnant low tracked west turning north eventually dissipated early october beginning early october forecast strike mexico tropical storm intensity cyclone advisories issued accordingly building mid level ridge high pressure inland mexico forecast cause center circulation pass offshore damage reported association cyclone rough seas created capsized ship thirty people board found alive bodies recovered reported missing storm names following names tropical storms formed northeast pacific_ocean names retired year list season list exception replaced reason time year names assigned marked gray season effects following table lists storms formed pacific hurricane season includes duration names landfall damages death totals deaths additional indirect example indirect death traffic accident related storm damage deaths include totals storm extratropical wave low damage figures usd
2007 Pacific hurricane season