Typhoon Dolphin Moves West of Wake Island

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Typhoon Dolphin moved west of Wake Island on Thursday.  At 11:00 p.m. EDT on Thursday the center of Typhoon Dolphin was located at latitude 18.6°N and longitude 161.5°E which put the center about 315 miles (510 km) west-southwest of Wake Island.  Dolphin was moving toward the west-northwest at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 155 m.p.h. (250 km/h) and there were wind gusts to 190 m.p.h. (305 km/h).  The minimum surface pressure was 924 mb.

Typhoon Dolphin appeared to go through another eyewall replacement cycle.  A circular eye with a diameter of 30 miles (50 km) was present at the center of Dolphin’s circulation on Thursday evening.  The eye was surrounded by a ring of thunderstorms.  The strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms revolved around the core of Typhoon Dolphin.  Storms near the core of Dolphin generated strong upper level divergence that pumped large amounts of mass from the typhoon.  The removal of large amounts of mass in the upper levels was nearly equal to the convergence of mass in the lower levels of the atmosphere.  So, the surface pressure  did not change much on Thursday.

The completion of another eyewall replacement cycle increased the size of the circulation around Typhoon Dolphin.  Winds to typhoon force extended out 60 miles (95 km) from the center of Dolphin’s circulation.  Winds to tropical storm force extended out 175 miles (280 km) from the center of Typhoon Dolphin.

The Hurricane Intensity Index (HII) for Typhoon Dolphin is 33.3.  The Hurricane Size Index (HSI) is 21.0 and the Hurricane Wind Intensity Size Index (HWISI) is 54.3.  Typhoon Dolphin is similar in intensity to Hurricane Ian when Ian hit Southwest Florida in 2022.  Typhoon Dolphin is larger than Ian was.

Typhoon Dolphin will move through an environment favorable for a powerful typhoon during the next 24 hours.  Dolphin will move over water where the Sea Surface Temperatures are near 29°C.  It will move under the middle of an upper level ridge that is over the Western North Pacific Ocean.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Typhoon Dolphin is likely to maintain its intensity on Friday.  Eyewall replacement cycles are likely to cause fluctuation in the intensity of Typhoon Dolphin during the next few days.

Typhoon Dolphin will move around the southern side of a high pressure system that is over the Western North Pacific Ocean.  The high pressure system will steer Dolphin toward the west-northwest during the next 24 hours.  On its anticipated track, the center of Typhoon Dolphin will move toward Iwo To.

Genevieve Weakens to a Tropical Storm

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Former Hurricane Genevieve weakened to a tropical storm on Thursday evening.  At 11:00 p.m. EDT on Thursday the center of Tropical Storm Genevieve was located at latitude 21.3°N and longitude 126.0°W which put the center about 1035 miles (1665 km) west of southern tip of Baja California.  Genevieve was moving toward the west-northwest at 15 m.p.h. (24 km/h).  The maximum sustained wind speed was 70 m.p.h. (110 km/h) and there were wind gusts to 85 m.p.h. (135 km/h).  The minimum surface pressure was 989 mb.

Former Hurricane Genevieve continued to weaken gradually on Thursday as it moved over cooler water in the Eastern North Pacific Ocean west of Baja California.  Thunderstorms were still occurring near the center of Genevieve’s circulation.  Bands of showers and thunderstorms were revolving around the center of Tropical Storm Genevieve.  Storms near the center of Genevieve still generated upper level divergence that pumped mass away from the hurricane.  However, the removal of mass in the upper levels was less than the convergence of mass in the lower levels of the atmosphere.  So, the surface pressure continued to increase on Thursday.

Winds to tropical storm force extended out 125 miles (200 km) from the center of Tropical Storm Genevieve.

Tropical Storm Genevieve will move through an environment that will be unfavorable for intensification during the next 24 hours.  Genevieve will move over water where the Sea Surface Temperatures are near 24°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Tropical Storm Genevieve will continue to weaken on Friday as it moves over cooler water.

Tropical Storm Genevieve will move around the southwestern part of a high pressure system that is over the Southwest U.S.  The high pressure system will steer Genevieve toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Genevieve will continue to move farther away from Baja California.

Hurricane Genevieve Continues to Weaken

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Hurricane Genevieve continued to weaken as it moved over the Eastern North Pacific Ocean southwest of Baja California on Wednesday.  At 11:00 p.m. EDT on Wednesday the center of Hurricane Genevieve was located at latitude 19.6°N and longitude 120.8°W which put the center about 735 miles (1185 km) west-southwest of southern tip of Baja California.  Genevieve was moving toward the west-northwest at 9 m.p.h. (15 km/h).  The maximum sustained wind speed was 100 m.p.h. (160 km/h) and there were wind gusts to 120 m.p.h. (195 km/h).  The minimum surface pressure was 970 mb.

Hurricane Genevieve continued to weaken gradually on Wednesday as it moved over cooler water in the Eastern North Pacific Ocean southwest of Baja California.  An eye was no longer visible on satellite imagery, but thunderstorms were still occurring near the center of Genevieve’s circulation.  Bands of showers and thunderstorms were revolving around the center of Hurricane Genevieve.  Storms near the center of Genevieve still generated upper level divergence that pumped mass away from the hurricane.  However, the removal of mass in the upper levels was less than the convergence of mass in the lower levels of the atmosphere.  So, the surface pressure increased on Wednesday.

The distribution of wind speeds around Hurricane Genevieve was fairly symmetrical.  Winds to hurricane force extended out 30 miles (50 km) from the center of Genevieve’s circulation.  Winds to tropical storm force extended out 140 miles (220 km) from the center of Hurricane Genevieve.

Hurricane Genevieve will move through an environment that will be unfavorable for intensification during the next 24 hours.  Genevieve will move over water where the Sea Surface Temperatures are near 25°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Hurricane Genevieve will continue to weaken on Thursday as it moves over cooler water.  Genevieve could weaken to a tropical storm by Friday.

Hurricane Genevieve will move around the southwestern part of a high pressure system that is over the Southwest U.S.  The high pressure system will steer Genevieve toward the west-northwest during the next 24 hours.  On its anticipated track, Hurricane Genevieve will move farther away from Baja California.

Typhoon Dolphin Strengthens to Equivalent of Cat. 5 Hurricane

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Typhoon Dolphin strengthened to the equivalent of a Category 5 hurricane on the Saffir-Simpson Scale as it moved over the Western North Pacific Ocean south of Wake Island on Wednesday.  At 5:00 p.m. EDT on Wednesday the center of Typhoon Dolphin was located at latitude 16.0°N and longitude 166.3°E which put the center about 240 miles (390 km) south of Wake Island.  Dolphin was moving toward the northwest at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 165 m.p.h. (265 km/h) and there were wind gusts to 200 m.p.h. (320 km/h).  The minimum surface pressure was 915 mb.

Typhoon Dolphin strengthened to the equivalent of a Category 5 hurricane on Wednesday.  A  circular eye with a diameter of 20 miles (32 km) was present at the center of Dolphin’s circulation.  The eye was surrounded by a ring of thunderstorms. The strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms revolved around the core of Typhoon Dolphin.  Storms near the core of Dolphin generated strong upper level divergence that pumped large amounts of mass from the typhoon. The removal of large amounts of mass caused the surface pressure to decrease.

The distribution of wind speeds in Typhoon Dolphin was symmetrical.  Winds to typhoon force extended out 40 miles (65 km) from the center of Dolphin’s circulation.  Winds to tropical storm force extended out 125 miles (200 km) from the center of Typhoon Dolphin.

The Hurricane Intensity Index (HII) for Typhoon Dolphin is 36.7.  The Hurricane Size Index (HSI) is 15.5 and the Hurricane Wind Intensity Size Index (HWISI) is 52.2.  Typhoon Dolphin is similar in intensity to Hurricane Otis when Otis hit Mexico in 2023.  Typhoon Dolphin is larger than Otis was.

Typhoon Dolphin will move through an environment favorable for a powerful typhoon during the next 24 hours.  Dolphin will move over water where the Sea Surface Temperatures are near 29°C.  It will move under the middle of an upper level ridge that is over the Western North Pacific Ocean.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Typhoon Dolphin could continue to intensify during the next few hours.  Eyewall replacement cycles are likely to cause fluctuation in the intensity of Typhoon Dolphin during the next few days.

Typhoon Dolphin will move around the southern side of a high pressure system that is over the Western North Pacific Ocean.  The high pressure system will steer Dolphin toward the northwest during the next 24 hours.  On its anticipated track, the center of Typhoon Dolphin will be east of Iwo To by the end of the weekend.

Tropical Storm Fausto Passes Northeast of Hawaii

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Tropical Storm Fausto was weakening as it passed northeast of Hawaii on Tuesday.  At 5:00 p.m. EDT on Tuesday the center of Tropical Storm Fausto was located at latitude 22.5°N and longitude 152.2°W which put the center about 270 miles (435 km) northeast of Hilo, Hawaii.  Fausto was moving toward the west-northwest at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h).  The minimum surface pressure was 1005 mb.

Tropical Storm Fausto was weakening as it passed northeast of Hawaii on Tuesday afternoon.  An upper level trough that was located north of Hawaii was producing strong southwesterly winds that were blowing across the top of Fausto’s circulation.  Those winds were causing strong vertical wind shear.  The strong upper level winds were also blowing the tops off of many of the thunderstorms in Tropical Storm Fausto.

Thunderstorms were still occurring in bands in the eastern edge of Tropical Storm Fausto.  Bands in the other parts of Fausto’s circulation consisted primarily of showers and lower clouds.  There were no thunderstorms near the center of Fausto to generate upper level divergence to pump mass away from the tropical storm.  Convergence of mass in the lower levels of the atmosphere was causing the surface pressure to increase.

The strongest winds were blowing on the northern side of Tropical Storm Fausto.  Winds to tropical storm force extended out 140 miles (220 km) in the northern side of Fausto’s circulation.  Winds to tropical storm force only extended out 70 miles (110 km) in the southern side of Tropical Storm Fausto.

Tropical Storm Fausto will move through an environment that will be unfavorable for intensification during the next 24 hours.  Fausto will move over water where the Sea Surface Temperatures are near 26°C.  However, the upper level trough north of Hawaii will continue to cause strong vertical wind shear.  Tropical Storm Fausto will continue to weaken steadily during the next 24 hours.  Fausto is likely to weaken to a tropical depression on Wednesday.

Tropical Storm Fausto will move around the southern side of a high pressure system that is over the Central North Pacific Ocean.  The high pressure system will steer Fausto toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Fausto will continue to pass north of Hawaii on Wednesday.

Elsewhere, Hurricane Genevieve was weakening gradually as it moved southwest of Baja California.  At 5:00 p.m. EDT on Tuesday the center of Hurricane Genevieve was located at latitude 18.0°N and longitude 116.9°W which put the center about 565 miles (910 km) southwest of southern tip of Baja California.  Genevieve was moving toward the west-northwest at 9 m.p.h. (15 km/h).  The maximum sustained wind speed was 120 m.p.h. (195 km/h) and there were wind gusts to 140 m.p.h. (220 km/h). The minimum surface pressure was 955 mb.

Typhoon Dolphin Rapidly Intensifies to Equivalent of a Major Hurricane

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Typhoon Dolphin rapidly intensified to the equivalent of a major hurricane as it moved over the Western North Pacific Ocean southeast of Wake Island.  At 11:00 a.m. EDT on Tuesday the center of Typhoon Dolphin was located at latitude 13.6°N and longitude 170.3°E which put the center about 490 miles (790 km) southeast of Wake Island.  Dolphin was moving toward the west at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 115 m.p.h. (185 km/h) and there were wind gusts to 145 m.p.h. (2350 km/h).  The minimum surface pressure was 960 mb.

Typhoon Dolphin rapidly intensified to the equivalent of a major hurricane on Tuesday morning.  A very small circular eye was present at the center of Dolphin’s circulation.  The eye was surrounded by a ring of thunderstorms.  The strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms revolved around the core of Typhoon Dolphin.  Storms near the core of Dolphin generated strong upper level divergence that pumped large amounts of mass from the typhoon.  The removal of large amounts of mass caused the surface pressure to decrease rapidly.

The circulation around Typhoon Dolphin was small.  Winds to typhoon force extended out 20 miles (30 km) from the center of Dolphin’s circulation.  Winds to tropical storm force extended out 80 miles (130 km) from the center of Typhoon Dolphin.

Typhoon Dolphin will move through an environment that will be very favorable for intensification during the next 24 hours.  Dolphin will move over water where the Sea Surface Temperatures are near 29°C.  It will move under the middle of an upper level ridge that is over the Western North Pacific Ocean.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Typhoon Dolphin will intensify during the next 24 hours.  Dolphin could continue to intensify rapidly during the next few hours.  Typhoon Dolphin is likely to strengthen to the equivalent of a Category 5 hurricane on the Saffir-Simpson Scale on Thursday.

Typhoon Dolphin will move around the southern side of a high pressure system that is over the Western North Pacific Ocean.  The high pressure system will steer Dolphin toward the west-northwest during the next 24 hours.  On its anticipated track, the center of Typhoon Dolphin will pass south of Wake Island on Wednesday.

Dolphin Rapidly Intensifies to a Typhoon

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Former Tropical Storm Dolphin rapidly intensified to a typhoon on Monday night as it moved over the Western North Pacific Ocean southeast of Wake Island.  At 5:00 a.m. EDT on Tuesday the center of Typhoon Dolphin was located at latitude 13.4°N and longitude 171.2°E which put the center about 535 miles (860 km) southeast of Wake Island.  Dolphin was moving toward the west at 13 m.p.h. (21km/h).  The maximum sustained wind speed was 85 m.p.h. (135 km/h) and there were wind gusts to 100 m.p.h. (160 km/h).  The minimum surface pressure was 980 mb.

Former Tropical Storm Dolphin rapidly intensified to a typhoon on Monday night.  A very small circular eye formed at the center of Dolphin’s circulation.  The eye was surrounded by a ring of thunderstorms.  The strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms revolved around the core of Typhoon Dolphin.  Storms near the core of Dolphin generated strong upper level divergence that pumped large amounts of mass from the typhoon.  The removal of large amounts of mass caused the surface pressure to decrease rapidly.

The circulation around Typhoon Dolphin was small.  Winds to typhoon force extended out 20 miles (30 km) from the center of Dolphin’s circulation.  Winds to tropical storm force extended out 80 miles (130 km) from the center of Typhoon Dolphin.

Typhoon Dolphin will move through an environment that will be very favorable for intensification during the next 24 hours.  Dolphin will move over water where the Sea Surface Temperatures are near 29°C.  It will move under the middle of an upper level ridge that is over the Western North Pacific Ocean.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Typhoon Dolphin will intensify during the next 24 hours.  Dolphin is likely to continue to intensify rapidly during the next few hours.  Typhoon Dolphin is likely to strengthen to the equivalent of a major hurricane later today.  Dolphin is likely to intensify to the equivalent of a Category 5 hurricane on the Saffir-Simpson Scale by Thursday.

Typhoon Dolphin will move around the southern side of a high pressure system that is over the Western North Pacific Ocean.  The high pressure system will steer Dolphin toward the west-northwest during the next 24 hours.  On its anticipated track, the center of Typhoon Dolphin will pass be south of Wake Island on Wednesday.

Tropical Storm Dolphin Forms West of the Date Line

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Tropical Storm Dolphin formed over the Western North Pacific Ocean west of the International Date Line on Monday morning.  At 11:00 a.m. EDT on Monday the center of Tropical Storm Dolphin was located at latitude 13.6°N and longitude 174.6°E which put the center about 690 miles (1115 km) east-southeast of Wake Island.  Dolphin was moving toward the west at 17 m.p.h. (28 km/h).  The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h).  The minimum surface pressure was 998 mb.

A low pressure system over the Western North Pacific Ocean east-southeast of Wake Island strengthened early on Monday and the Japan Meteorological Agency designated the system as Tropical Storm Dolphin.

The circulation around Tropical Storm Dolphin was strengthening on Monday.  Bands of showers and thunderstorms were revolving around the center of Dolphin’s circulation.  Storms near the center of Dolphin generated upper level divergence that pumped mass away from the tropical storm.  The removal of mass caused the surface pressure to decrease.

The strongest winds were blowing on the northern side of Tropical Storm Dolphin.  Winds to tropical storm force extended out 105 miles (165 km) in the northern side of Dolphin’s circulation.  The winds in the southern side of Tropical Storm Dolphin were blowing at less than tropical storm force.

Tropical Storm Dolphin will move through an environment that will be favorable for intensification during the next 24 hours.  Dolphin will move over water where the Sea Surface Temperatures are near 29°C.  It will move under the middle of an upper level ridge that is over the Western North Pacific Ocean.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Tropical Storm Dolphin will intensify during the next 24 hours.  Dolphin is likely to strengthen to a typhoon on Tuesday.

Tropical Storm Dolphin will move around the southern side of a high pressure system that is over the Western North Pacific Ocean.  The high pressure system will steer Dolphin toward the west during the next 24 hours.  On its anticipated track, the center of Tropical Storm Dolphin will be south of Wake Island in 48 hours.

Hurricane Genevieve Intensifies to Cat. 5

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Hurricane Genevieve intensified to Category 5 on the Saffir-Simpson Scale on Sunday night as it moved over the Eastern North Pacific Ocean south of Baja California.  At 5:00 a.m. EDT on Monday the center of Hurricane Genevieve was located at latitude 15.5°N and longitude 112.2°W which put the center about 530 miles (855 km) south-southwest of southern tip of Baja California.  Genevieve was moving toward the northwest at 13 m.p.h. (21 km/h).  The maximum sustained wind speed was 160 m.p.h. (260 km/h) and there were wind gusts to 190 m.p.h. (305 km/h).  The minimum surface pressure was 925 mb.

Hurricane Genevieve intensified to Category 5 on Sunday night.  A circular eye with a diameter of 23 miles (37 km) was at the center of Genevieve’s circulation.  The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Genevieve’s circulation.  Storms near the core of Genevieve generated strong upper level divergence that pumped large amounts of mass away from the hurricane.  The removal of large amounts of mass caused the surface pressure to decrease rapidly.

The distribution of wind speeds in Hurricane Genevieve became more symmetrical on Sunday night.  Winds to hurricane force extended out 45 miles (75 km) from the center of Genevieve’s circulation.  Winds to tropical storm force extended out 195 miles (315 km) from the center of Hurricane Genevieve.

The Hurricane Intensity Index (HII) for Hurricane Genevieve was 35.0.  The Hurricane Size Index (HII) was 16.5 and the Hurricane Wind Intensity Size Index (HWISI) was 51.5.  Hurricane Genevieve was similar in size and intensity to Hurricane Michael when Michael hit Northwest Florida in 2018.

Hurricane Genevieve will move into an environment that will become slighyly less favorable for an intense hurricane during the next 24 hours.  Genevieve will move over water where the Sea Surface Temperatures are near 28°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  However, Genevieve will start to move into a region where the air is a little drier later today.  Hurricane Genevieve is likely to start to weaken when it moves into the region of drier air.

Hurricane Genevieve will move around the southwestern part of a high pressure system that is over the Southwest U.S.  The high pressure system will steer Genevieve toward the northwest during the next 24 hours. On its anticipated track, Hurricane Genevieve will move parallel to the coast of Baja California.

Elsewhere, Hurricane Fausto continued to weaken slowly as it moved over the Central North Pacific Ocean east of Hawaii.  At 5:00 a.m. EDT on Monday the center of Hurricane Fausto was located at latitude 20.4°N and longitude 144.8°W which put the center about 670 miles (1080 km) east of Hilo, Hawaii.  Fausto was moving toward the west-northwes at 14 m.p.h. (24 km/h).  The maximum sustained wind speed was 80 m.p.h. (130 km/h) and there were wind gusts to 95 m.p.h. (150 km/h).  The minimum surface pressure was 988 mb.

Genevieve Rapidly Intensifies to a Major Hurricane

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Hurricane Genevieve rapidly intensified to a major hurricane over the Eastern North Pacific Ocean southwest of Mexico on Sunday morning.  At 11:00 a.m. EDT on Sunday the center of Hurricane Genevieve was located at latitude 13.4°N and longitude 109.4°W which put the center about 515 miles (825 km) southwest of Manzanillo, Mexico.  Genevieve was moving toward the west-northwest at 16 m.p.h. (26 km/h).  The maximum sustained wind speed was 120 m.p.h. (195 km/h) and there were wind gusts to 140 m.p.h. (220 km/h).  The minimum surface pressure was 963 mb.

A circular eye with a diameter of 20 miles (32 km) formed at the center of Hurricane Genevieve.  The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Genevieve’s circulation.  Storms near the core of Genevieve generated strong upper level divergence that pumped large amounts of mass away from the hurricane.  The removal of large amounts of mass caused the surface pressure to decrease rapidly.

Winds to hurricane force extended out 45 miles (75 km) in the northern side of Hurricane Genevieve.  Winds to hurricane force extended out 15 miles (25 km) in the southern side of Genevieve’s circulation.  Winds to tropical storm force extended out 195 miles (315 km) from the center of Hurricane Genevieve.

Hurricane Genevieve will move through an environment favorable for intensification during the next 24 hours.  Genevieve will move over water where the Sea Surface Temperatures are near 29°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Hurricane Genevieve will intensify during the next 24 hours.  Genevieve could continue to intensify rapidly during the next few hours.   Hurricane Genevieve could strengthen to a Category 5 hurricane on the Saffir-Simpson Scale.

Hurricane Genevieve will move around the southwestern part of a high pressure system that is over the Southwest U.S.  The high pressure system will steer Genevieve toward the northwest during the next 24 hours.  On its anticipated track, Hurricane Genevieve will move parallel to the west coast of Mexico.

Elsewhere, Hurricane Fausto was weakening slowly as it moved over the Central North Pacific Ocean.  At 11:00 a.m. EDT on Sunday the center of Hurricane Fausto was located at latitude 19.9°N and longitude 141.1°W which put the center about 910 miles (1465 km) east of Hilo, Hawaii.  Fausto was moving toward the west at 14 m.p.h. (24 km/h).  The maximum sustained wind speed was 85 m.p.h. (135 km/h) and there were wind gusts to 100 m.p.h. (160 km/h).  The minimum surface pressure was 977 mb.