Systems 2001 Pacific hurricane season

1 systems

1.1 hurricane adolph
1.2 tropical storm barbara
1.3 tropical storm cosme
1.4 tropical storm erick
1.5 hurricane dalila
1.6 tropical depression six-e
1.7 hurricane flossie
1.8 hurricane gil
1.9 tropical storm henriette
1.10 tropical storm ivo
1.11 tropical depression one-c
1.12 hurricane juliette
1.13 hurricane kiko
1.14 tropical depression two-c
1.15 tropical storm lorena
1.16 tropical depression fourteen-e
1.17 tropical storm manuel
1.18 hurricane narda
1.19 hurricane octave

systems
hurricane adolph

hurricane adolph originated tropical wave left africa on may 7, , poorly organized. not until may 18 storm showed signs of development in atlantic ocean. on, may 22 wave crossed over, , on may 25 intensified tropical depression one-e, 250 mi (400 km) south-southwest of acapulco, mexico. system, after drifting while, intensified tropical storm adolph next day. later, on may 27 adolph upgraded hurricane. intensifying hurricane, adolph rapidly intensified, , reached category 4 strength on may 28. 2 days after, adolph went under eyewall replacement cycle, , weakened 115 mph (185 km/h) hurricane, minimal category 3 intensity. trend of weakening continued, , deteriorated tropical storm. passing on cooler waters, , stable air, adolph dissipated on june 1.

tropical storm barbara

a tropical wave moved off coast of africa on june 1. wave entered pacific ocean on june 10, though no further organization occurred until june 18. system organized further on next 2 days, , became tropical depression two-e on june 20. although depression remained poorly organized, upgraded tropical storm barbara. @ 1200 utc on june 21, storm attained peak intensity maximum sustained winds of 60 mph (95 km/h) , minimum barometric pressure of 997 mbar (29.4 inhg). shortly thereafter, barbara began encountering unfavorable conditions, such higher wind shear , cooler sea surface temperatures.

it weakened tropical depression @ 1800 utc on june 26, while crossing 140°w central pacific hurricane center s area of responsibility. depression passed north of hawaiian islands on june 25, weakened easterly wave northwest of kauai on june 26. remnants of barbara continued west-northwest until being absorbed frontal zone near international dateline on june 30. barbara first , tropical cyclone in central pacific during month of june.

tropical storm cosme

a tropical wave crossed central america , emerged eastern pacific basin on july 6.the wave moved westward july 6 – july 10. on july 10, convective pattern began show signs of organization 403 mi (649 km) south of acapulco, mexico, , system received first dvorak satellite classification. on next 2 days, system moved west-northwestward multiple low-level circulations developed within broad area of low pressure. during period, development of disturbance hindered southerly shear upper-level trough west of disturbance caused system become elongated north-south. on july 12, upper trough cut off southwest of disturbance , organization improved. on july 13, single low-level circulation center had become established , estimated tropical depression formed @ 330 mi (530 km) southwest of manzanillo, mexico.

tropical depression three-e moved west-northwestward, , became tropical storm cosme on july 13, 425 mi (684 km) south of cabo san lucas, mexico. forward motion slowed on next 12 hours. cosme s development hindered easterly shear; peak intensity of 45 mph (72 km/h) reached late on july 13. on july 14, convection limited , removed center. cosme weakened tropical depression, when 400 mi (640 km) southwest of cabo san lucas. cosme produced no more significant convection after on july 15, @ point tropical cyclone became non-convective low center. low moved westward until dissipated on july 18 820 mi (1,320 km) west-southwest of cabo san lucas, mexico.

tropical storm erick

erick apparently formed poorly defined tropical wave traveled westward across tropical atlantic , reached eastern north pacific on july 16. thunderstorm activity associated wave increased on july 18 when disturbance centered 808 mi (1,300 km) south of southern tip of baja california. thereafter, deep convection gradually developed around large cyclonic gyre accompanied wave.

it not until july 20 well-defined center of circulation formed , satellite intensity estimates supported tropical depression status. moving on general west-northwest track, system became tropical storm , reached maximum winds of 40 mph (64 km/h) , 1001 mbar (hpa; 29.56 inhg) minimum pressure july 22. moved on relatively cooler waters , weakened deep convection vanished. july 24, non-convective , dissipating swirl of low clouds, although showers re-developed intermittently.

hurricane dalila

dalila s origin tropical wave moved westward africa , on eastern tropical atlantic ocean on july 10. crossed northern south america , central america on july 15 through july 17 accompanied vigorous thunderstorm activity, , entered pacific basin on july 18 organized area of disturbed weather. on july 21, system acquired low-level circulation , became tropical depression five-e, 250 mi (400 km) south of gulf of tehuantepec. moving west-northwestward, became tropical storm dalila 40 mph (64 km/h) winds 12 hours later.

dalila s track toward west-northwest @ forward speeds between 5 , 17 mph (27 km/h). direction of motion rather steady, varying between 285 , 300 degrees heading. attributed persistent subtropical ridge of high pressure located north of cyclone. center reached point of closest approach coast of mexico between acapulco , manzanillo on july 22 , july 23, when came within 100 mi (160 km) of coast.

with warm sea surface temperatures , minimal vertical shear, winds increased 40 70 mph (64 113 km/h) on july 22 , july 23. wind speed briefly reached estimated 75 mph (121 km/h) on july 24, although dalila weakened strong tropical storm. storm passed directly on socorro island on july 25. july 27, of associated deep convection dissipated storm moved on colder water. reduced swirl of low clouds, dalila dissipated tropical cyclone on july 28, while located 650 mi (1,050 km) west of southern tip of baja california.

tropical depression six-e

the origins of sixth tropical depression of season possibly developed westward moving tropical wave, crossed atlantic , caribbean. @ 12:00 utc on august 22, tropical depression six-e developed. further intensification deemed unlikely national hurricane center, depression enter region of sea surface temperatures less 77 °f (25 °c). in addition lowering sea surface temperatures, system began affected southerly wind shear, displaced mid-level circulation , deep convection low-level circulation. national hurricane center later noted disorganized state of tropical depression being ... swirl of low clouds few showers north , northeast of center . became elongated, , dissipated @ 06:00 utc on august 24.

hurricane flossie

a tropical wave emerged atlantic ocean on august 11 , spawned atlantic tropical storm chantal 3 days later. after tracking westward toward yucatán peninsula, southern portion of tropical wave split , entered pacific ocean on august 21 after crossing central america. system failed organize, although there closed circulation august 23. low-level circulation began become well-defined moved away mexico on august 26, while convection consolidated near center. later day, classified tropical depression seven-e. conditions appeared favorable development, , after banding features increased, system upgraded tropical storm flossie later on august 26. while steering currents weakened, flossie began develop cloud-filled eye on august 27, , upgraded hurricane based on , wind estimates of 75 mph (120 km/h).

by on august 29, further intensification not expected, flossie deepened category 2 hurricane. after winds reached 105 mph (165 km/h) , barometric pressure fell 972 mbar (28.7 inhg), flossie entered region sea surface temperatures less 79 °f (26 °c). flossie weakened quickly, , minimal hurricane 24 hours after peak intensity, when national hurricane center noted ill-define eye. on august 30, flossie weakened tropical storm. on september 1, flossie downgraded tropical depression, , after becoming devoid of deep convection, system degenerated remnant low on september 2. remnants of flossie moved inland on baja california, entering southwestern region of united states , dissipating. remnants caused flash flooding in san diego , riverside counties in california, dropping 2 in (50.8 mm) of rain in 1 hour. strong downdraft knocked tree onto house. in addition, 4 people struck lightning, 2 of them fatally. total cost of damage caused flossie s remnants $35,000 (2001 usd).

hurricane gil

a tropical wave emerged atlantic ocean off coast of africa between august 14 , august 15. northern part of wave developed tropical storm dean on august 22, while remaining portions entered pacific on august 24. wave organized , did not develop tropical depression until september 4. situated 850 mi (1,370 km) southwest of cabo san lucas, mexico, system intensified , became tropical storm 6 hours later. on september 5, banding features became well-defined; nhc simultaneously noted possibility interaction between tropical storm gil , tropical depression nine-e (later tropical storm henriette), 865 mi (1,390 km) east-northeast. although outflow henriette predicted slow or prevent intensification, gil managed become hurricane on september 6. late on september 6, gil intensified category 2 hurricane, peaking maximum sustained winds of 100 mph (155 km/h) , minimum barometric pressure of 975 mbar (28.8 inhg).

gil curved northwestward on september 6 , began become affected northeasterly outflow associated henriette. september 7, storm became noticeably disorganized , weakened category 1 hurricane. after weakening category 1, gil accelerated northward around circulation of henriette. further shearing henriette occurred, , on september 8, nhc noted center of gil near edge of associated deep convection. after on region sea surface temperatures near 73 °f (23 °c), gil rapidly weakened, , fell tropical storm intensity 6 hours later. gil continued weaken , downgraded tropical depression on september 9. gil absorbed remnants of henriette, dissipated 00:00 utc on september 10 while 1,150 mi (1,850 km) east of hawaiian islands .

tropical storm henriette

a tropical wave crossed on central america between august 28 , august 29. while south of acapulco, began showing signs of development. visible satellite images on september 4 revealed partially exposed, defined low-level circulation. while deep convection confined southwestern half of circulation, convection close enough center system classified tropical depression nine-e on september 4, 300 mi (480 km) west-southwest of manzanillo, mexico. on september 5, depression headed westward, separation between circulation center , deep convection decreased. several hours later, depression intensified tropical storm henriette. cyclone became better organized on september 6, convective pattern becoming more symmetric, while intensity increase 60 mph (97 km/h).

henriette turned northwest , accelerated began feel influence of hurricane gil, located 285 mi (460 km) southwest. upper-level easterly flow, still evident on cyclone on september 6, lessened , more favorable outflow pattern began develop. convective banding near center became better defined, , henriette reached peak intensity of 65 mph (105 km/h) on september 7. cyclone began weakening due cold waters , proximity gil. fujiwhara interaction between henriette , gil occurred on september 8. henriette dissipated after losing closed low-level circulation, evidenced low-cloud trajectories.

tropical storm ivo

ivo formed large tropical wave moved off african coast on august 26. wave accompanied large cyclonic rotation @ low middle levels , numerous thunderstorms when entered eastern atlantic. on august 28, wave spawned northward-moving vortex in eastern atlantic, wave s southern portion continued westward limited convective activity. once wave reached western caribbean sea on september 5, shower activity increased , whole system continued westward on central america. cloud pattern gradually became better organized , september 9, satellite images showed low middle level circulation centered near acapulco, mexico. next day, portion of system moved on water , became tropical depression 118 mi (190 km) south-southwest of acapulco on september 10.

the center of depression moved west , west-northwestward circulation hugging southwest coast of mexico. there moderate easterly shear on depression indicated location of convection west of center. satellite images , report ship indicated depression reached tropical storm status 0600 utc september 11. thereafter, there slight strengthening , ivo reached maximum intensity of 50 mph (80 km/h) , estimated minimum pressure of 997 mbar (hpa; 29.44 inhg) on september 12. tropical storm moved toward northwest , west on increasingly cooler waters, , gradually weakened. became low pressure system devoid of convection end of september 14.

tropical depression one-c

tropical depression one-c formed on september 11 more 400 mi (644 km) southeast of island of hawaii. system moved west northwestward 15°n 153°w september 11, , southwestward shortly thereafter. system poorly organized, , convection of tropical depression one-c dissipated later on september 11. having lasted 12 hours depression; tropical depression one-c never reached tropical storm strength.

hurricane juliette

an area of disturbed weather associated remnants of atlantic tropical depression 9 organized directly tropical storm juliette on september 21. sustained intensification began next day. juliette peaked category 4 hurricane central pressure of 923 mbar (hpa; 27.26 inhg), made fifth-most intense pacific hurricane @ time. juliette turned north , weakened , made landfall minimal hurricane. juliette s remnants hung on few more days until dissipated on october 3.

juliette dumped heavy rains on baja california peninsula , in sonora, caused 2 deaths. effects hard on cabo san lucas, baja california sur, cut off outside world few days. remnants of juliette moved state of california, caused thunderstorms, rain, , downed power lines. total estimated cost of damage $400 million (2001 usd; $541 million 2017 usd).

hurricane kiko

a tropical wave led formation atlantic hurricane felix on eastern atlantic on september 7 seems have produced kiko. wave moved westward @ low latitudes, crossing northern south america on september 13 – september 14 , central america on september 15 , september 16. september 17, cloudiness , showers increased near gulf of tehuantepec. area of disturbed weather moved westward next few days, without increase in organization. on september 21, system s cloud pattern became more consolidated, , curved bands of showers evident. estimated tropical depression twelve-e had formed day, @ time centered 634 mi (1,020 km) southwest of southern tip of baja california.

after forming, system, located in environment of easterly vertical shear, strengthened slowly. september 22 organization of cloud pattern improved extent tropical storm strength estimated have been reached. kiko turned northwestward west-northwestward heading day. although easterly shear continued affect system, deep convection persisted near center, , based on dvorak intensity estimates, kiko strengthened hurricane around september 23. little later on september 23, deep convection decreased in coverage , intensity , kiko weakened tropical storm.

the system continued lose intensity on september 24, @ least in part due entrainment of more stable air @ low levels. kiko weakened tropical depression on september 25, time southwesterly shear became prevalent. later on september 25, cyclone degenerated westward-moving swirl of low clouds little or no deep convection. kiko s remnant low persisted , continued moving westward several more days intermittent, minor occurrences of deep convection within circulation. absorbed frontal system northeast of hawaiian islands on october 1.

tropical depression two-c

tropical depression two-c formed near 10°n 147.4°w on september 22, southwest of tropical storm kiko (in east pacific). throughout september 23, tropical depression two-c remained poorly organized system moved west-northwestward. slight increase in convection became apparent on september 24, , followed period of consistent thunderstorm activity near circulation center. tropical depression two-c continued in west-northwest direction, weakened september 25.

tropical storm lorena

the tropical wave developed lorena moved off west coast of africa on september 13. poorly defined wave tracked rapidly westward across atlantic more week. there little or no thunderstorm activity associated wave until moved across central america on september 27. significant deep convection developed on september 29 , satellite classifications began on september 30 when system located 300 mi (480 km) south of acapulco, mexico. wave possessed well-defined closed low-level circulation @ time.

convection steadily increased , banding features developed during day on october 1. satellite intensity estimates indicate system became tropical depression thirteen-e @ october 2. low-level circulation had tightened considerably , satellite intensity estimates indicated depression had strengthened tropical storm lorena 350 mi (560 km) south-southwest of acapulco. lorena tracked steadily west-northwestward @ 8 14 mph (23 km/h) remainder of day , gradually turned toward northwest on october 3. peak intensity of 60 mph (97 km/h) occurred later day lorena took more northerly track when located 205 mi (330 km) southwest of manzanillo, mexico.

by october 4, forward speed of tropical storm lorena had decreased around 7 nine mph (11 14 km/h) , strong upper-level southwesterly shear began adversely affect cyclone. lorena weakened tropical depression , dissipated non-convective low later day 120 mi (190 km) southwest of puerto vallarta, mexico. remnant low-level cloud circulation remained offshore , persisted day or before dissipating west of cabo corrientes, mexico.

tropical depression fourteen-e

tropical depression fourteen-e developed small swirl of low clouds first observed along intertropical convergence zone south-southwest of baja california on september 30. little development occurred until october 3, when system began generate more persistent deep convection. while system located 800 mi (1,300 km) southwest of southern tip of baja california, nhc began classify tropical depression fourteen-e. although appeared wind shear @ predicted remain @ favorable level, upper-level low southwest of depression generated wind shear greater expected, , convection weakened hours later. despite significant effects wind shear, depression still forecast intensify tropical storm. later day, low-level center of depression became more difficult locate on satellite images, , location of poorly defined center estimated. convection decreased again on october 4, , depression dissipated 900 mi (1,400 km) southwest of southern tip of baja california. remnant low cloud swirl continued westward 24–36 hours before dissipating completely.

tropical storm manuel

tropical storm manuel formed remnants of hurricane iris atlantic basin. core circulation of iris had dissipated on mountains of eastern mexico, while new convection developing short distance away on waters of pacific. area became better organized on next 18 hours , became tropical depression fifteen-e @ october 10, 175 mi (282 km) south-southeast of acapulco, mexico. depression moved @ 15–16 mph (24–26 km/h), first westward , west-northwestward. upper-level anticyclone centered on southern mexico producing easterly shear in environment of depression, when shear lessened system became tropical storm manuel on october 11, 200 mi (320 km) south-southwest of zihuatanejo, mexico. estimated initial peak intensity of 50 mph (80 km/h) reached day when first clear banding features developed. however, banding short-lived, deep convection diminished, , satellite microwave imagery on october 12 suggested circulation becoming elongated. wind shear returned, time northwest, , manuel turned west-southwesterly track , slowed. october 12, manuel had weakened tropical depression.

manuel remained disorganized depression next 2 , half days. continued moving west-southwest, slowed drift mid-level ridge north of cyclone gradually weakened. upper-level trough dug southward west of manuel on october 15, , manuel began move north-northwest. convection redeveloped near center , manuel regained tropical storm strength on october 15 596 mi (959 km) south-southwest of cabo san lucas, mexico. wind shear decreased , manuel strengthened, reaching peak intensity of 60 mph (97 km/h) winds, , pressure of 997 mbar (hpa; 29.44 inhg) on october 16 540 mi (870 km) southwest of cabo san lucas. point, water temperatures under cyclone decreasing , shear, time southwest, increasing. manuel began weaken while moving west-northwest , northwest. became depression @ october 17 660 mi (1,060 km) west-southwest of cabo san lucas, , dissipated non-convective low shortly after october 18. remnant low moved westward couple of days on cool waters before circulation dissipated completely.

hurricane narda

narda developed westward moving tropical wave crossed dakar, senegal around october 3. wave became convectively active after crossed central america when produced large burst of convection in bay of campeche on october 15. southern portion of wave continued westward on pacific waters south of mexico , under favorable upper-level winds, began acquire banding features , several centers of circulation. system consolidated , developed 1 center @ october 20. became tropical depression 1,150 mi (1,850 km) southwest of cabo san lucas, mexico. moving on west-northwest track, intensified , reached tropical storm status later day. cloud pattern continued become better organized , visible satellite imagery showed intermittent eye feature, , estimated narda became hurricane @ october 21. narda peak s intensity of 980 mbar (hpa; 28.94 inhg) occurred on october 22. thereafter, gradual weakening began , strong shear took toll on narda. tropical cyclone became tight swirl of low clouds intermittent convection on october 24, moved westward steered low-level flow , crossing 140°w on central pacific area of responsibility. continued westward tropical depression until dissipation.

hurricane octave

the final tropical depression of season developed weak tropical wave moved westward across central america on october 22. following area in convection on october 27 , formation of low-level circulation, system declared tropical depression @ 00:00 utc on october 31, while centered 1,180 mi (1,900 km) southwest of southern tip of baja california. depression affected easterly upper-level winds , outflow restricted on eastern quadrant. depression intensified , upgraded tropical storm octave 6 hours after forming. although cloud tops warmed on october 31, octave organized further, , nhc noted storm began resemble hurricane on november 1. shortly thereafter, no significant intensification predicted, cloud pattern becoming elongated, vertical wind shear increase, , octave entering region of decreasing sea surface temperatures. however, octave re-organized , eye feature began developing later on november 1.

the storm upgraded hurricane after ragged eye developed , t-numbers reached 4.0 on dvorak scale. on november 2, octave attained peak intensity maximum sustained winds of 85 mph (140 km/h) , minimum barometric pressure of 980 mbar (hpa; 28.94 inhg). wind shear began increase, while sea surface temperatures decreasing, causing low-level circulation become gradually displaced associated deep convection. however, storm remained hurricane until 18:00 utc on november 2. on november 3, minimal deep convection associated octave. nhc downgraded system tropical depression later day. deep convection associated octave remained minimal, , system had degenerated remnant low located 1,715 mi (2,760 km) west-southwest of southern tip of baja california @ 00:00 utc on november 4.