atlantic hurricane season atlantic hurricane season fairly active notable storms strongest season category saffir simpson scale highest category scale struck nicaragua peak intensity killing dozens later hit southern louisiana held record longest known duration north_atlantic tropical cyclone lasting days early september early october currently second longest lasting atlantic hurricane moved ashore north_carolina producing heavy rains damaging winds unnamed storm august attained hurricane status north atlantic hurricane season officially began june lasted november dates conventionally period year tropical cyclones form atlantic basin thirteen tropical storms hurricanes season active despite activity damage united_states totaled million usd billion usd national_hurricane_center noted pretty small considering storms row strike damage came tropical storm affected east_coast united_states struck texas executing unusual track dropping heavy rainfall producing flooding storm developed july coast north_carolina activity steady season storm dissipated november storms tropical storm origins cold exited east_coast united_states july stalled offshore frontal wave developed day steadily developing thermal instability july system organized tropical depression southeast cape_hatteras north_carolina formative stages dropped rainfall coast carolinas peaking depression tracked northeastward ridge new_england cyclone passed southeast hurricane_hunters plane observed gale force winds depression upgraded tropical storm late july post season summary noted surprising element development transformation process named continued northeastward possessing circular mass convection spiral rainbands late july storm attained peak winds mph based ship report weakened transitioned extratropical cyclone late july south newfoundland cyclone observed early following day storm capsized boat grand banks newfoundland crew rescued hybrid type depression formed east bermuda july moved rapidly southwestward turning northwest drift august classified tropical depression day system passed near bermuda depression accelerated northeast strengthening tropical storm august intensified enhanced instability different levels atmosphere caused temperature moisture august drilling rig southeast newfoundland recorded sustained winds mph gusts mph altitude suggested storm attained hurricane status north northernmost location tropical storm intensify hurricane despite intensity cyclone purely tropical radius maximum winds thermal structure resemble tropical cyclone precipitation convection near center continued northeastward dissipated august southwest greenland named operationally later added atlantic hurricane database hurricane august upper level low developed coast florida day spawned tropical depression newly developed cyclone tracked slowly northeastward eventually encountering conditions favorable development august depression intensified tropical storm coast north_carolina quickly strengthened hurricane august reaching peak winds mph coast slightly weakened later moved ashore near nova scotia shortly swept nearby cold transitioned extratropical cyclone hurricane left extensive damage wake especially crops infrastructure reported rainfall hour span caused widespread flooding bridges region washed railways covered water forcing trains suspend operation overall monetary damage estimated million usd million usd person indirectly killed hurricane traffic accident induced heavy rainfall tropical depression august tropical depression developed southwest florida quickly moved ashore reaching lake northwest moving state dropped heavy rainfall west coast heavy rains led flash flooding forced families house including required evacuation helicopter damage region estimated usd million usd depression emerged gulf_of_mexico august near tampa later turned northeast ahead upper level low august intensified moved ashore near hurricane force wind gusts briefly observed depression dissipated august south_carolina state produced heaviest rainfall totaling sullivan island nearby savannah georgia rainfall forced families houses low lying areas remnants continued northeastward new_england crossing canada august tropical storm tropical wave moved coast africa august moving westward days organizing tropical depression august east barbados quickly moved produced wind gusts mph cyclone dropped heavy rainfall barbados martinique entering eastern caribbean_sea depression intensified tropical storm august hours attaining tropical storm status quickly strengthened peak winds mph south passage reported reconnaissance aircraft reaching peak intensity began weakening turned west southwest late august downgraded tropical depression weakening ridge north cut low level days continued generally westward gradually losing organization passing south jamaica storm prompted evacuation hospital ship kingston august moved ashore belize weak tropical depression dissipated shortly having caused significant damage deaths remnants later spawned hurricane lily eastern pacific_ocean tropical storm tropical storm storm season developed tropical wave august east lesser antilles days development attained tropical storm status east florida turned north reached peak winds mph making landfall near north_carolina turned northeast moved mid-atlantic new_england tropical storm extratropical storm maine august north_carolina produced moderate rainfall resulting localized flooding damage storm spawned tornado near norfolk virginia damaging houses downing hundreds trees dropped heavy precipitation new_jersey peaking rainfall led record breaking river levels flooding houses resulting damage dozens houses state moderate damage rainfall continued path new_england southeastern canada tropical storm caused seven deaths million million usd hurricane hurricane tropical systems develop association extended surface trough gulf_of_mexico open atlantic strong tropical depression developed september central gulf_of_mexico moved southern louisiana day increased north depression moved southwestward water september depression intensified rare tropical depression land continental united_states excluding florida later attain tropical storm status later turned northwest intensifying hurricane september quickly reached peak winds mph later weakened curved southwest moving ashore september texas tropical storm dissipated september northeastern mexico precursor dropped rainfall rainfall south florida totals reported southeastern louisiana landfall struck texas produced strong winds mph storm tides heavy rainfall highest precipitation total heavy rainfall caused severe flash flooding isolated numerous small towns southeastern portion state damaging buildings left indirect deaths moderate damage totaling million usd million usd hurricane hurricane strongest storm season developed tropical wave september east southern lesser antilles moved quickly southern caribbean_sea intensifying hurricane north coast south_america rapidly intensified september landfall category hurricane saffir simpson hurricane scale quickly lost intensity central_america briefly entering crossed yucatán_peninsula mexico moving gulf_of_mexico trough turned storm northeast having accelerating coast landfall louisiana winds mph september steadily weakened land dissipated georgia september hurricane killed people passed near striking northeastern central_america category hurricane destroyed hundreds homes killed people texas high tides caused coastal flooding little damage caused moderate heavy damage portions louisiana flooding tornado outbreak storm tornado rated scale damaged homes injured multiple people tornado outbreak extended eastward florida damage united_states totaled million usd million usd hurricane longest lasting atlantic hurricane record san hurricane found lasted longer eighth tropical cyclone fifth hurricane season spent days tropical cyclone lasted september october storm developed large region convection gulf_of_mexico western atlantic days duration tracked generally northeastward gradually strengthening peak winds mph september slowed turned general westward track passing near bermuda september hurricane produced gusty winds high waves damage western atlantic_ocean target sought weaken hurricanes silver tropical cyclone rainbands plane dropped silver center effect large eye nature project ultimately struck north_carolina september minimal hurricane coastline gusty winds caused power outages region heavy rainfall flooded towns left heavy crop damage million corn million lost damage state estimated million usd million usd north moderate rainfall winds spread mid-atlantic states significant damage reported outside north_carolina tropical storm tropical storm tropical systems develop extended surface trough low pressure forming september northeast bahamas intensifying tropical storm day initially moving northwest curved northeastward attained peak intensity mph september coast virginia storm failed organized system gradually weakened accelerating north northeastward september shortly moved ashore maine absorbed broad extratropical cyclone northern directly cause fatalities severe damage larger extratropical storm drew moisture producing rainfall north_carolina northern new_england including peak southeastern pennsylvania heavy rains triggered extensive flooding caused dozen fatalities left thousands residents homeless pennsylvania new_jersey chester pennsylvania stone dam collapsed forcing hundreds families evacuate damaging homes businesses roads bridges governor declared state emergency pennsylvania counties following floods hurricane tropical wave spawned tropical depression september east windward_islands cyclone tracked nearly westward low latitude passing southern windward_islands later northern south_america southwest caribbean_sea intensified tropical storm later hurricane landfall southeastern nicaragua september maintained circulation crossed low lying terrain country reaching pacific renamed ultimately attained peak winds mph weakening dissipating northwestern mexico atlantic produced moderate rainfall winds path impact greatest nicaragua moved ashore hurricane total homes destroyed people left homeless rainfall resulted widespread flooding killing people neighboring costa_rica caused million usd million usd damage banana crop hurricane actively tracked tropical cyclone moved eastern pacific_ocean atlantic ocean tropical storm origins tropical wave moved coast africa september developed tropical depression september west southwest cape_verde easternmost formation named storms season day depression intensified tropical storm quickly reached peak winds mph storm organized peak winds located east broad center despite favored region development weakened increased wind shear circulation elongated separated convection september storm weakened tropical depression later day dissipated northeast lesser antilles absorbed time produced rainfall northeastern caribbean reaching damage fatalities reported tropical storm interaction tropical wave upper level trough led development tropical depression october northeast puerto_rico moved quickly north northeastward followed curve northeast october ship reported winds mph indicating depression intensified tropical storm reached strength approaching cold produced cooler drier air storm intensified slightly peak winds mph indistinguishable cold october transitioned extratropical cyclone dissipating near azores tropical storm final storm season formed november western caribbean_sea reached winds mph approached western cuba island storm produced heavy rainfall peaking resulting flooding killed person caused crop damage forced people evacuate homes initially forecast island impact southern united_states executed small loop turned southwest storm moved ashore belize november storms affect country little impact occurred final landfall dissipated november central guatemala second highest accumulated cyclone energy ace atlantic tropical cyclone attain hurricane status tropical storm storms addition named storms notable cyclones weak depressions season june devoid activity tropical depressions developed days july tropical storm july second formed coast louisiana july tropical depression moved westward ridge northeast struck west texas louisiana border dissipating july precursor dropped near florida path days later tropical depression formed northwestern gulf_of_mexico quickly moving ashore southern texas dissipating july dropped light rainfall path august tropical depressions addition named storms notable tropical depression tropical depression developed central gulf_of_mexico august landfall louisiana days later eventually dissipating mississippi designated formed bahamas august moved westward crossing florida gulf_of_mexico dissipating southeastern louisiana september depression dropped moderate rainfall gulf_coast peaking alabama non developing tropical depressions september coast africa september moved west northwestward passing near cape_verde dissipating september originated september east florida trough spawned initially moved northward curving west making landfall near georgia south_carolina border september dissipating following day tropical depression nineteen developed coast africa september moving westward dissipating september final non developing tropical depression season formed october western caribbean_sea crossed peninsula day dropping heavy rainfall depression turned northeast approaching upper level trough transitioned frontal wave october trough advanced ahead storm ridge built southeast united_states causing cyclone turn northward parallel west coast florida regained tropical characteristics moving ashore near dissipating october storm names following names named storms tropical storms hurricanes formed north_atlantic names assigned marked gray storms named time names retired season
1971 Atlantic hurricane season