atlantic hurricane season atlantic hurricane season slightly average season produced tropical cyclones named storms hurricanes major hurricanes officially began june ended november dates historically describe period year tropical cyclones form atlantic basin named storm developed nearly month official start season pre season cyclone earliest season concluded kate transitioning extratropical cyclone november weeks official end storms impacted land overall effects minimal caused minor flooding wind damage carolinas left dead north_carolina tropical storm bill remnants caused flooding primarily mid-atlantic regions united_states precursor left flooding central_america mexico storm resulted deaths honduras guatemala mexico deaths united_states additionally united_states suffered million usd damage left minimal impact land late august tropical storm brought heavy rainfall leading devastating floods caused nearly million damage fatalities making island deadliest natural disaster hurricane david storm flooded nearby islands lesser degree guadeloupe puerto_rico hispaniola additional deaths occurred haiti fred prompted hurricane warning cape_verde time storm pass islands hurricane strong winds left million damage deaths presumed occurred fishermen returned port seven sailors likely drowned offshore guinea fishing boat collapsed tropical storms left impact land intensity slow movement vicinity bahamas resulted severe damage islands additionally american cargo ship went missing near eventually capsized storm drowning people rough seas haiti caused damage death fisherman drowning intense satellite era tropical cyclone non tropical origins remnants kate affected british isles particularly wales united_kingdom season storms collectively caused million damage deaths exception initial season prediction december major agencies called near average season strong possibility developing colder average sea surface temperatures cited predictions overall forecasts fairly accurate seasonal forecasts advance hurricane season forecasts hurricane activity issued national meteorological services scientific agencies noted hurricane experts include forecasters climate prediction center tropical storm risk associates forecasts include weekly monthly changes significant factors help determine number tropical storms hurricanes major hurricanes particular year according average atlantic hurricane season contained roughly tropical storms hurricanes major hurricanes accumulated cyclone energy ace index units typically season average average average based cumulative ace index number tropical storms hurricanes major hurricanes hurricane season considered occasionally pre season forecasts december tropical storm risk public consortium consisting experts insurance risk management seasonal climate issued outlook seasonal hurricane activity season report organization forecast activity average average totaling tropical storms hurricanes major hurricanes cumulative ace index units forecast largely based low level trade winds tropical atlantic july september period report stressed uncertainty forecast existed north_atlantic sea surface temperatures months later april updated report detailing prediction activity average recent average named storms hurricanes major hurricanes cumulative ace index units cited expected cooler average ocean temperatures tropical north_atlantic caribbean_sea reasoning lower activity addition report stated ace forecast verify total values year period lowest signalling possible end active phase atlantic hurricane activity began april released forecast hurricane season predicting named storms hurricanes major hurricane cumulative ace index units combination cooler average waters tropical subtropical atlantic developing predicted reach moderate intensity expected favor active seasons mid-1990s major hurricane striking coastal areas atlantic lower average stressed takes hurricane active season residents involved april released forecast predicting near record low season named storms hurricanes major hurricane issued forecast predicting season normal activity predicted storms chance number storms predicted hurricanes chance number fall range ace index prediction units chance index falling range units released seasonal forecast predicting normal season named storms hurricanes major hurricanes indicated chance normal season chance near normal season chance normal season day released preseason forecasts slightly lowering number tropical storms hurricanes major hurricane mid season june released updated forecast increasing number predicted named storms early formation tropical storm keeping predictions hurricanes major hurricanes respectively ace index forecast kept units major hurricane making landfall coastal areas remained average august updated forecast lowered number hurricanes developing basin major hurricane ace index prediction reduced units seasonal summary atlantic hurricane season officially began june near average season tropical cyclones formed designated cyclones attained tropical storm status tropical storms reached category hurricane intensity season extended period major hurricane united_states years system lack activity primarily attributed atmospheric circulation favored dry sinking air low latitudes west westerly wind shear enhanced notable events occurred season tropical cyclone form season fred easternmost tropical storms recorded landfall cape_verde category hurricane hurricane strike country intense storm non tropical origin satellite era strongest affect bahamas october tropical cyclones season caused deaths million damage atlantic hurricane season officially ended november tropical cyclogenesis began early developing weeks prior official beginning season far ahead long term average july month june featured tropical cyclone bill formed june system month july developed july rate tropical cyclogenesis increased august storms developed half month season major hurricane formed august followed august fred august september peak hurricane season featured additional tropical cyclones intense storm season peaked strong category hurricane maximum sustained winds mph short category saffir simpson hurricane wind scale lasted october systems developed month season final cyclone kate developed november extratropical november season activity reflected ace rating median broadly speaking ace measure power tropical subtropical storm multiplied length time existed storm longer duration stronger intensity high values ace calculated advisories specific tropical subtropical systems reaching exceeding wind speeds mph accordingly tropical depressions included storm dissipated typically end season nhc data produces final report storm revisions lead revised ace total upward downward compared operational value storms tropical storm low pressure area non tropical origins developed utc situated miles southeast south_carolina system classified subtropical involvement upper trough large wind field day convection progressively increased moved north northwestward warm sea surface temperatures associated utc cyclone attained peak intensity maximum sustained winds miles hour minimum barometric pressure inhg hours later transitioned fully tropical system storm soon began weakening moving away warm waters increasing wind shear contributed deterioration utc system landfall near south_carolina winds mph weakened tropical depression hours later transitioned remnant low near utc remnant low merged frontal system hours later striking south_carolina earliest system record state storm surge peaking feet resulted erosion minor coastal flooding roads washed inland moderate rainfall caused lake rise bank homes streets drowning death occurred north_carolina rip currents caused man remain underwater minutes rainfall state peaked inches southeast north_carolina minor street flooding took place local firefighters rescued stranded individuals boat rising isolated residences tropical storm force winds confined coastal areas peak gust mph observed near additional death occurred north_carolina tree fell car tropical storm bill national_hurricane_center nhc began monitoring disorganized convection northwestern caribbean_sea association upper level trough june interacting broad area low pressure near yucatán_peninsula elongated area low pressure formed vicinity june system moved northwestward gulf_of_mexico developed defined circulation early june system producing tropical storm force winds immediately classified tropical storm bill situated initially continuing northwestward bill curved west northwestward later june utc storm peaked winds mph minimum pressure mbar inhg hours later bill landfall near texas intensity cyclone weakened tropical depression turned northward early june possibly rare brown ocean effect bill remained tropical cyclone late june degenerated remnant low eastern oklahoma remnant low moved east northeastward dissipating west_virginia june precursor bill produced widespread heavy rain central_america guatemala flooding affected homes landslide killed people died honduras flooding missing heavy rains fell parts yucatán_peninsula peaking highest daily total seen city nearly years person died city texas flooding exacerbated record rainfall areas number roads inundated water rescues required alice san_antonio major traffic jams occurred houston dallas areas coastal flooding left minor damage galveston counties death occurred boy swept oklahoma numerous roads inundated water interstate closed near near high water fatalities oklahoma drowning flooding states united_states bill responsible approximately million damage tropical storm early july trough embedded crossed united_states system emerged atlantic near july surface low soon developed traversing convection abruptly increased july estimated tropical depression formed utc day roughly east northeast cape_hatteras hours later depression intensified tropical storm assigned sudden development cyclone forecast operationally warned tropical storm embedded southwesterly flow ahead mid latitude trough storm moved generally northeast reached peak intensity utc winds mph pressure mbar hpa inhg increasing wind shear july prompted weakening displacing convection storm center subsequently degenerated remnant low utc july remnants absorbed frontal boundary south newfoundland later day wet conditions associated forced flight travel delays portions eastern newfoundland hurricane tropical wave emerged western coast africa mid august acquiring sufficient organization declared tropical depression utc august located southwest cape_verde depression intensified tropical storm hours later steered generally westward cyclone initially struggled intensify quickly midst abundant managed attain hurricane intensity utc august began period rapid deepening category hurricane attaining peak winds mph early august negative effects dry air increased shear began affect cyclone peak early august storm weakened category category hurricane hours later deteriorated tropical storm utc august hours cyclone weakened tropical depression moved leeward_islands degenerated open wave utc august remnants continued west northwest day noted hispaniola hurricane prompted issuance tropical storm warnings lesser antilles cancelled flights distributed ultimately brought light rain region effects considered beneficial severe drought tropical storm westward moving tropical wave developed tropical storm late august located east leeward_islands steered westward southerly flow associated subtropical ridge storm strengthen despite initially favorable conditions august encountered wind shear dry mid level air causing storm weaken slightly leaving low level circulation partially exposed contrary predictions northwesterly cyclone persisted westerly course passed leeward_islands north guadeloupe august unfavorable conditions caribbean_sea prevented strengthening mph late august storm degenerated low pressure area south eastern tip hispaniola shortly remnants hispaniola later cuba reaching gulf_of_mexico september striking florida following day remains indistinguishable georgia september leeward_islands experienced heavy rainfall passage especially precipitation fell airport causing catastrophic mudslides flooding total homes destroyed left people rendered homeless entire villages flattened total deaths deadliest natural disaster david overall million damage island set approximately years terms development guadeloupe heavy rainfall vicinity caused flooding mudslides forcing roads temporarily close approximately people puerto_rico left electricity island experienced million agricultural damage dominican_republic weather station measured rain including single hour total homes suffered damage people displaced people died haiti weather related traffic accident landslide hurricane fred defined tropical wave developed tropical depression offshore africa west northwest guinea early august hours later depression intensified tropical storm day fred grew category hurricane hours later peaked winds mph minimum pressure mbar inhg approaching cape_verde passing moving away entered phase steady weakening dropping hurricane status september fred turned west northwest endured increasingly hostile wind shear maintained status tropical cyclone despite repeated forecasts dissipation fluctuated minimal tropical storm tropical depression september curving sharply north september fred circulation pattern diminished considerably cyclone degenerated trough hours later located southwest azores remnants soon absorbed frontal system threat hurricane cape_verde placed hurricane warning time history gale force winds battered region august downing numerous trees utility poles easternmost islands fred leveled roofs left villages power phone services days percent houses damaged degree northern islands damaged homes roads lost large amounts crop livestock monetary losses exceeded million cape_verde rain overall impact agriculture positive swells hurricane produced violent seas west african shores destroying fishing villages large residential area overall deaths directly attributed fred tropical storm grace organized tropical wave emerged western coast africa september initially disorganized broad area low pressure burst convection september led center tropical depression developed utc day positioned south cape_verde depression intensified tropical storm grace hours later embedded generally favorable environment grace strengthened attain peak winds mph utc september mid level eye feature evident satellite cooler waters increased shear caused cyclone weaken tropical depression early september dissipate utc day located central atlantic tropical storm september upper level trough spawned tropical depression southeast bermuda day upgraded tropical storm struggling strong westerly wind shear system attained peak intensity mph minimum pressure mbar hpa possibly increasing interaction upper level trough west degraded circulation opened trough september remnants later absorbed non tropical cyclone north_atlantic days later tropical depression september strong tropical wave emerged western coast africa passing south cape_verde interaction coupled wave resulted increased convection formation area low pressure organization wave acquired sufficient organization declared tropical depression utc september located central atlantic unfavorable upper level winds caused appearance cyclone immediately formation despite sporadic bursts convection atop storm center depression dissipated utc september attaining tropical storm intensity tropical storm tropical wave emerged atlantic west coast africa september wave later interacted wave contributed formation tropical depression moving westward large area convection tropical wave developed defined low pressure area midday september according satellite imagery prevented classification tropical depression utc september located south southernmost depression moved west northwestward subtropical ridge north intensified tropical storm early following day westerly wind shear exposed storm low level circulation causing strengthen slightly wind shear briefly decreased allowing cyclone peak winds mph minimum pressure mbar inhg utc september shear increased later day causing slow weakening began moving general eastward direction september embedded flow associated mid- upper level trough early september storm weakened tropical depression following day trough replaced subtropical ridge causing turn northwestward west northwestward september shear dry air caused convection diminish degenerated remnant low utc september situated east northeast hurricane non tropical low developed tropical depression september southwest bermuda based improved circulation satellite imagery deep convection forming near center storm initially moved slowly southwestward blocking ridge high pressure north wind shear increased slightly tracked ocean temperatures allowing cloud pattern better organized september storm intensified hurricane rapidly deepened category hurricane late october later weakened passed bahamas category hurricane northeastward october maximum sustained winds peaked mph minimum barometric pressure mbar inhg began rapidly weaken approached bermuda cyclone turned eastward maintained hurricane status october following day extratropical west northwest azores remnants later stuck portugal dissipating october bahamas southern islands days caused extensive devastation especially long_island severe storm surge inundated communities trapping hundreds people homes flooding persisted days hurricane departure prolonged intense winds brought trees homes affected region submerged heavily damaged relief workers limited ability quickly help affected residents damage bahamas totaled million offshore american cargo ship crew members lost hurricane coastal flooding impacted turks washing roadways damaging homes strong winds heavy rainfall caused property damage eastern cuba fisherman died heavy seas capsized small boat coast haiti storm tides resulted severe flooding haiti departments forcing families homes destroying crops posed threat parts east_coast united_states state declared maryland new_jersey north_carolina south_carolina virginia mandatory evacuation north_carolina ultimately curved northeast caused little direct impact united_states large storm system southeastern states drew tremendous moisture hurricane resulting catastrophic flooding south_carolina storm brought strong winds bermuda cut power customers damage bermuda minor hurricane kate october poorly defined tropical wave associated small area disturbed weather emerged atlantic west coast africa strong wind shear prevented significant development organization deep convection days november showers increased system approaching lesser antilles rapid increase convection circulation defined satellite imagery tropical depression southeast bahamas utc november depression strengthened early november initially moving northwestward kate briefly accelerated northward western periphery subtropical ridge central atlantic cyclone accelerated curved northeastward mid latitude intensification improvements convective banding kate upgraded category hurricane utc november hours later storm peaked maximum sustained winds mph minimum barometric pressure mbar inhg strong wind shear decreasing sea surface temperatures storm began losing tropical characteristics shortly early november system extratropical south southeast newfoundland late november remnants merged larger extratropical cyclone november november remnants kate affected united_kingdom ireland wales high winds downed trees heavy rain flooded roadways storm names following names named storms formed north_atlantic names retired list season list list season replaced juan time year retirement april 38th session hurricane committee retired names rotating lists atlantic hurricane names replaced julian season respectively season effects table storms formed atlantic hurricane season includes names duration peak strength areas affected damage death totals deaths additional indirect example indirect death traffic accident related storm damage deaths include totals storm extratropical wave low damage figures usd
2015 Atlantic hurricane season