hurricane hurricane produced days torrential rain northeastern caribbean october originated subtropical cyclone lingering north puerto_rico october transitioned tropical storm day fifteenth hurricane season accelerating northeast strengthened category hurricane saffir simpson scale october attaining peak winds mph storm began weakening incompatible surroundings extratropical west azores october atlantic tropical cyclone record transition subtropical storm tropical storm drifting near northeastern caribbean days precursor disturbance brought prolonged rainfall leeward_islands puerto_rico triggering widespread flooding numerous mudslides damage storm particular roads property infrastructure exceeded million usd fatalities northeast proceeded open atlantic affecting meteorological history late september large area disturbed weather associated tropical waves formed east lesser antilles disturbance drifted slowly west northwestward strong wind shear eventually caused westernmost wave dissipate albeit weak elongated remnant trough area low pressure persisted days extreme nearby upper level cyclonic vortex north october trough drifted northward favorable atmospheric environment allowed lowest pressures extend surface low defined interacting adjacent upper vortex produce wide convective band concentrated region strong showers thunderstorms form northeastern caribbean day system continued acquire prominent subtropical structure developed markedly larger wind radius typically seen pure tropical cyclones satellite observations revealed lower wind circulation distinct cyclonic vortex aloft southwest confirming hybrid nature system national_hurricane_center nhc classified system subtropical depression utc october north northwest san_juan puerto_rico depression slid slowly northwestward upper vortex large high pressure region central atlantic region lighter wind shear ahead anticipated weakening upper cyclone prompted nhc introduce possibility tropical transition later satellite observations showed rapid improvement depression structure convective banding wrapped completely broad inner wind field produced gusts mph accordingly nhc upgraded depression subtropical storm utc october northeast satellite images continued display classical subtropical cyclone center vortex aloft nearly data hurricane_hunters aircraft indicated weak warm convective core developing mid levels circulation feature normally present upper levels tropical cyclones large wind field reaffirmed entering final stages tropical transition convective activity briefly weakened overnight weakening shear considerably warmer sea surface temperatures permitted small patches thunderstorms morning october northward temperature contrasts forecast models indicated warm core circulation ascended upper levels cyclone consequence burst deep tropical convection extreme cloud temperatures approximately occurred center having shed subtropical characteristics warm core system operationally declared tropical utc day course october began accelerate northeast increasing influence vertically deep trough east_coast conditions aloft remained storm convection deepened center form large defined central dense overcast utc winds reached mph mid level eyewall began form prompting nhc upgrade storm category hurricane south bermuda strengthening ensued newly formed hurricane proceeded warm waters central atlantic microwave imagery revealed eye obscured vertically established marking peak strength estimated winds mph peaking intensity fully embedded deep layered flow southwest racing northeastward hurricane entered area progressively cooler waters adverse upper atmospheric conditions eroded cloud pattern disrupted circulation maximum winds dropping mph reduced tropical storm late october convective activity came near halt relentless wind shear lack tropical moisture leading specialists conclude storm entering extratropical transition day cool dry air weak warm core began develop frontal banding features characteristics extratropical cyclone october nhc discontinued advisories storm post tropical system near azores week eventually degenerated remnant low sharply southeastward completely dissipating west morocco october preparations impact precursor disturbance produced days prolonged rainfall gusty winds northern leeward_islands puerto_rico localized flooding rough sea conditions caused extensive road damage infrastructure failures beach erosion coastlines passage storm numerous residents left water power state emergency declared caribbean nations schools businesses government offices closed storm conditions weather system ultimately accounted substantial monetary losses areas pinned million usd addition widely regarded storms history northeastern caribbean repeatedly shattering rainfall records leeward_islands triggered torrential flooding island easternmost coast october october flash floods affected households houses flooded severely damaged residences evacuated people trapped homes residents suffered absence drinking water lack electricity inability prepare meals loss kitchen equipment response area declared disaster zone total usd approved assist flood victims additional allocated intermittent battered days total inches precipitation recorded time reported significant flooding number persons rescued homes gusty winds generated rough sea conditions coastal regions resulting beach erosion collapse section rains associated floods topped number bridges washed sides roadways damage utility lines followed significant electricity services exact damage territory remains unknown heavy rainfall associated shattered numerous records october maximum total reported rain flooded roads prompted officials opened shelters islands october roadway section leading collapsed temporarily cutting neighborhood traffic makeshift roadway created day island north shore floods landslides affected low lying areas traffic initially remained rain continued days flooding asphalt erosion forced authorities close roads highways damage estimates storm reached million islands flash flood warning effect presence october torrential floods islands overturned cars caused extensive damage utility lines drainage pipes dozens people specifically road town temporarily left power water total estimated inches rain recorded government declared state emergency entire territory floods storm regarded worst history total damage islands estimated million considerably higher losses ensured major hurricane earl earlier year widespread flooding responsible substantial increases damage road network initially wrought earl amounting million usd french island nation associated floods similar property damage monetary losses totaled million usd puerto_rico rain began pour parts puerto_rico october days areas greatest rainfall day period october registered inches recorded rainfall issued closure roads additional streets partially secured subsequent widespread flooding affected roads suffered significant damage damage road infrastructure estimated million addition municipality reported losses agriculture later estimated million following overflow october neighborhood cut surrounding communities waters severely damaged main road shortly landslide utility pole road making impossible larger vehicles including access site landslides trapped fourteen families municipality residence alongside road suffered significant damage evacuated district isolated neighboring areas collapse bridge area burst triggered floods local streets trapped dozens families homes severe flooding contaminated water supplies leaving estimated people drinking water wake storm response government declared state emergency entire island authorities opened shelters flood victims rescued
Hurricane Otto (2010)