Tropical Storm Erick Forms, Hurricane Watch for Mexico

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Tropical Storm Erick formed over the Eastern North Pacific Ocean south of Mexico early on Tuesday.  The government of Mexico issued a Hurricane Watch for the portion of the coast.  At 8:00 a.m. EDT on Tuesday the center of Tropical Storm Erick was located at latitude 12.1°N and longitude 93.8°W which put the center about 515 miles (830 km) southeast of Acapulco, Mexico.  Erick was moving toward the west-northwest at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1005 mb.

A Hurricane Watch was in effect for the portion of the coast from Bahias de Huatulco to Punta Maldonado, Mexico.

A Tropical Storm Watch was in effect for the portion of the coast from Bahias de Huatulco to Salina Cruz, Mexico.

A low pressure system over the Eastern North Pacific Ocean strengthened during Monday night and the U.S. National Hurricane Center designated the system as Tropical Storm Erick.  The circulation around Tropical Storm Erick exhibited more organization on Tuesday morning.  Bands of thunderstorms were revolving around the center of Erick’s circulation.  Storms near the center of Erick generated upper level divergence that pumped mass away from the tropical storm.  The removal of mass caused the surface pressure to decrease.

Tropical Storm Erick will move through an environment very favorable for intensification during the next 36 hours.  Erick will move over water where where the Sea Surface Temperatures are near 30°C.  It will move under the middle of an upper level ridge over Central America and the adjacent part of the Eastern 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 Erick will intensify during the next 36 hours.  Erick could rapidly intensify to a hurricane by Wednesday.

Tropical Storm Erick will move around the southwestern part of a high pressure system over Central America and southern Mexico.  The high pressure system will steer Erick toward the northwest during the next 36 hours.  On its anticipated track, Tropical Storm Erick will move toward the coast of southern Mexico.  Erick could make landfall in southern Mexico between Acapulco and Punta Maldonado on Thursday.

Tropical Storm Erick will be a hurricane when it makes landfall on the coast of Mexico.  Erick will bring strong winds and heavy rain to parts of Oaxaca, Guerrero and Michoacan.  Heavy rain will cause flash floods in some locations.  Tropical Storm Erick could also cause a storm surge of up to 10 feet (3 meters) along the coast.

NHC Initiates Advisories on Potential Tropical Cyclone Five-E

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The U.S. National Hurricane Center (NHC) initiated advisories on Potential Tropical Cyclone Five-E on Monday afternoon.  At 5:00 p.m. EDT on Monday the center of Potential Tropical Cyclone Five-E was located at latitude 10.6°N and longitude 91.7°W which put the center about 610 miles (980 km) southeast of Punta Maldonado, Mexico.  Potential Tropical Cyclone Five-E was moving toward the west-northwest at 8 m.p.h. (13 km/h).  The maximum sustained wind speed was 35 m.p.h. (55 km/h) and there were wind gusts to 45 m.p.h. (75 km/h).  The minimum surface pressure was 1009 mb.

More thunderstorms developed in a low pressure system over the Eastern North Pacific Ocean south of Guatemala on Monday afternoon and the U.S. National Hurricane Center (NHC) began issuing advisories on the system.  NHC designated the system as Potential Tropical Cyclone Five-E.

Thunderstorms formed near the center of Potential Tropical Cyclone Five-E.  Numerous thunderstorms also developed in bands revolving around the center of the low pressure system.  Thunderstorms near the center of the low pressure system began to generate upper level divergence that pumped mass away from Potential Tropical Cyclone Five-E.

Potential Tropical Cyclone Five-E will move through an environment very favorable for intensification during the next 48 hours.  The low pressure system will move over water where where the Sea Surface Temperatures are near 30°C.  It will move under the middle of an upper level ridge over Central America and the adjacent part of the Eastern North Pacific Ocean.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Potential Tropical Cyclone Five-E will intensify during the next 48 hours.  It will strengthen to a tropical storm on Tuesday.  Potential Tropical Cyclone Five-E could rapidly intensify to a hurricane by Wednesday.

Potential Tropical Cyclone Five-E will move around the southwestern part of a high pressure system over Central America.  The high pressure system will steer the low pressure system toward the northwest during the next 48 hours.  On its anticipated track, Potential Tropical Cyclone Five-E will move toward the coast of southern Mexico.  It could make landfall in southern Mexico on Thursday.

Potential Tropical Cyclone Five-E is likely to be a hurricane when it makes landfall.  Watches and Warnings for portions of the coast of southern Mexico are likely to be issued on Tuesday.

Tropical Storm Dalila Weakens

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Tropical Storm Dalila weakened as it moved away from Mexico on Sunday.  At 11:00 a.m. EDT on Sunday the center of Tropical Storm Dalila was located at latitude 18.2°N and longitude 107.9°W which put the center about 235 miles (380 km) west-southwest of Manzanillo, Mexico.  Dalila was moving toward the west-northwest at 9 m.p.h. (15 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 999 mb.

Tropical Storm Dalila weakened on Sunday when it moved over cooler water south of Baja California.  Many of the thunderstorms in Dalila’s circulation weakened when the tropical storm move over cooler water.  Thunderstorms were still occurring in bands in the western part of Tropical Storm Dalila.  Bands in the other parts of Dalila’s circulation consisted primarily of showers and lower clouds.  The thunderstorms remaining in Tropical Storm Dalila generated less upper level divergence.  More mass was converging in the lower levels of the atmosphere  which caused the surface pressure to increase.

The size of the circulation around Tropical Storm Dalila decreased as Dalila weakened.  Winds to tropical storm force extended out 90 miles (145 km) from the center of Dalila’s circulation.

Tropical Storm Dalila will move through an environment unfavorable for intensification during the next 24 hours.  Dalila will move over water where where the Sea Surface Temperatures are near 24°C.  It will move under the southern part of an upper level ridge over southern Mexico and the adjacent part of the Eastern North Pacific Ocean.  The upper level ridge will produce east-northeasterly winds that will blow toward the top of Dalila’s circulation.  Those winds will cause the vertical wind shear to increase.  Cooler Sea Surface Temperatures and more vertical wind shear will cause Tropical Storm Dalila to continue to weaken during the next 24 hours.

Tropical Storm Dalila will move around the southwestern part of a high pressure system over Mexico.  The high pressure system will steer Dalila toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Dalila will continue to move farther away from the coast of southwestern Mexico.

Tropical Storm Dalila Intensifies Southwest of Mexico

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Tropical Storm Dalila intensified over the Eastern North Pacific Ocean southwest of Mexico on Saturday morning.  At 11:00 a.m. EDT on Saturday the center of Tropical Storm Dalila was located at latitude 16.5°N and longitude 104.1°W which put the center about 175 miles (285 km) south of Manzanillo, Mexico.  Dalila was moving toward the northwest at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 60 m.p.h. (95 km/h) and there were wind gusts to 75 m.p.h. (120 km/h).  The minimum surface pressure was 996 mb.

A Tropical Storm Warning was in effect for the portion of the coast from Tecpan de Galeana to Cabo Corrientes, Mexico.

Tropical Storm Dalila intensified over the Eastern North Pacific Ocean southwest of Mexico on Saturday morning.  More thunderstorms formed near the center of Dalila’s circulation.   More thunderstorms also developed in bands revolving around the center of Tropical Storm Dalila.  Storms near the center of Dalila generated upper level divergence that pumped mass away from the tropical storm.  The removal of mass caused the surface pressure to decrease.

The circulation around Tropical Storm Dalila was large.  Winds to tropical storm force extended out 230 miles (370 km) from the center of Dalila’s circulation.

Tropical Storm Dalila will move through an environment favorable for intensification during the next 24 hours.  Dalila will move over water where where the Sea Surface Temperatures are near 27°C.  It will move under the middle part of an upper level ridge over southern Mexico and the adjacent part of the Eastern 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 is likely to intensify during the next 24 hours.

Tropical Storm Dalila will move around the southwestern part of a high pressure system over Mexico.  The high pressure system will steer the tropical disturbance toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Dalila will start to move a little farther away from the coast of southwestern Mexico.

Thunderstorms in bands in the northern periphery of Tropical Storm Dalila will bring gusty winds and locally heavy rain to coastal portions of southwestern Mexico.  The heaviest rain is likely fall in parts of Guerrero, Michoacan, and Colima.  Heavy rain could cause flash floods in some location.

Tropical Storm Wutip Makes Landfall in Southern China

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Tropical Storm Wutip made landfall on the coast of southern China near Lianjiang on Friday night.  At 5:00 a.m. EDT on Saturday the center of Tropical Storm Wutip was located at latitude 21.7°N and longitude 110.3°E which put the center about 15 miles (25 km) southwest of Lianjiang, China.  Wutip was moving toward the northeast at 13 m.p.h. (21 km/h).  The maximum sustained wind speed was 65 m.p.h. (105 km/h) and there were wind gusts to 80 m.p.h. (130 km/h).  The minimum surface pressure was 985 mb.

Tropical Storm Wutip strengthened to a typhoon just before it made landfall in southern China on Friday night.  Wutip weakened back to a tropical storm after it made landfall.  The circulation around Tropical Storm Wutip was small.  Winds to tropical storm force extended out 100 miles (160 km) from the center of Wutip’s circulation.

Tropical Storm Wutip will move around the northwestern part of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Wutip toward the northeast during the next 24 hours.  On its anticipated track, Tropical Storm Wutip will move across Guangdong.  Wutip will pass north of Hong Kong.

Tropical Storm Wutip will bring strong winds and heavy rain to southern China.  The strongest winds and heaviest rain will occur in Guangdong . Heavy rain could cause flash floods in some locations.

Tropical Storm Wutip will weaken gradually as it moves across southern China.

Wutip Strengthens to a Typhoon Near Southern China

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Former Tropical Storm Wutip strengthened to a typhoon near southern China on Friday evening.  At 11:00 p.m. EDT on Friday the center of Typhoon Wutip was located at latitude 20.8°N and longitude 109.4°E which put the center about 80 miles (130 km) southwest of Lianjiang, China.  Wutip was moving toward the north-northeast at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 75 m.p.h. (120 km/h) and there were wind gusts to 90 m.p.h. (145 km/h).  The minimum surface pressure was 979 mb.

Former Tropical Storm Wutip strengthened to a typhoon as it neared the coast of southern China on Friday evening.  The inner end of a rainband wrapped around the center of Wutip’s circulation.  A small circular eye with a diameter of 15 miles (24 km) formed at the center of Typhoon Wutip.  The eye was surrounded by a thin ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the center of Wutip’s circulation.  Storms near the center of Wutip generated upper level divergence that pumped mass away from the typhoon.  The removal of mass caused the surface pressure to decrease.

The size of the circulation around Typhoon Wutip decreased a little on Friday.  Winds to typhoon force extended out 25 miles (40 km) from the center of Wutip’s circulation.  Winds to tropical storm force extended out 100 miles (160 km) from the center of Typhoon Wutip.

Typhoon Wutip will move through an environment favorable for intensification during the next few hours before it makes landfall in China.  Wutip will move over water where where the Sea Surface Temperatures are near 30°C.  It will move under the axis of an upper level ridge over eastern China.  The upper level winds are weak near the axis of the ridge and there will be little vertical wind shear.  However, much of the southeastern part of Wutip’s circulation will pass over Hainan.  The increased friction over land will slow the winds in that part of Tropical Storm Wutip.  Typhoon Wutip could intensify a little more during the next few hours.

Tropical Storm Wutip will move around the western part of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Wutip toward the northeast during the next 24 hours.  On its anticipated track, the center Typhoon Wutip will make landfall on the coast of southern China southwest of Lianjiang.

Typhoon Wutip will bring strong winds and heavy rain to southern China on Saturday.  The strongest winds and heaviest rain will occur in Guangdong and eastern Guangxi.  Heavy rain could cause flash floods in some locations.

Tropical Storm Dalila Forms South of Mexico

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Tropical Storm Dalila formed over the Eastern North Pacific Ocean south of Mexico on Friday afternoon.  At 5:00 p.m. EDT on Friday the center of Tropical Storm Dalila was located at latitude 14.8°N and longitude 102.4°W which put the center about 205 miles (335 km) south-southwest of Zihuatanejo, Mexico.  Dalila was moving toward the north-northwest at 14 m.p.h. (22 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1001 mb.

A Tropical Storm Warning was in effect for the portion of the coast from Lazaro Cardenas to Playa Perula, Mexico.

A Tropical Storm Watch was in effect for the portion of the coast from Playa Perula to Cabo Corrientes, Mexico.  A Tropical Storm Watch was also in effect for the portion of the coast from Lazaro Cardenas to Tecpan de Galeana, Mexico,

A low pressure system over the Eastern North Pacific Ocean south of Mexico strengthened on Friday afternoon and the U.S. National Hurricane Center designated the system as Tropical Storm Dalila.  The inner end of a rainband wrapped around the western side of the center of Dalila’s circulation.  Other bands of showers and thunderstorms were revolving around the center of Tropical Storm Dalila.  Storms near the center of Dalila generated upper level divergence that pumped mass away from the tropical storm.  The removal of mass caused the surface pressure to decrease.

The circulation around Tropical Storm Dalila was large.  Winds to tropical storm force extended out 310 miles (500 km) from the center of Dalila’s circulation.

Tropical Storm Dalila will move through an environment favorable for intensification during the next 24 hours.  Dalila will move over water where where the Sea Surface Temperatures are near 28°C.  It will move under the middle part of an upper level ridge over southern Mexico and the adjacent part of the Eastern 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 will intensify during the next 24 hours.

Tropical Storm Dalila will move around the southwestern part of a high pressure system over Mexico.  The high pressure system will steer the tropical disturbance toward the northwest during the next 24 hours.  On its anticipated track, Tropical Storm Dalila will move a little closer to the coast of southwestern Mexico on Friday night.

Thunderstorms in bands in the northern periphery of Tropical Storm Dalila will bring gusty winds and locally heavy rain to coastal portions of southwestern Mexico.  The heaviest rain is likely fall in parts of Guerrero, Michoacan, and Colima.  Heavy rain could cause flash floods in some location.

Tropical Storm Wutip Brings Wind and Rain to Hainan

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Tropical Storm Wutip brought wind and rain to Hainan on Thursday night.  At 11:00 p.m. EDT on Thursday the center of Tropical Storm Wutip was located at latitude 18.6°N and longitude 108.5°E which put the center about 40 miles (65 km) south-southwest of Dongfang, China.  Wutip was moving toward the northwest at 9 m.p.h. (15 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. (105 km/h).  The minimum surface pressure was 983 mb.

Tropical Storm Wutip brought wind and rain to Hainan on Thursday night.  The center of Wutip’s circulation was passing just to the west of Hainan.  Bands in the eastern side of Tropical Storm Wutip were bringing strong winds and locally heavy rain to parts of Hainan.

Tropical Storm Wutip intensified on Thursday.  The inner end of a rainband wrapped around the center of Wutip’s circulation.  A small circular eye appeared to be forming at the center of Tropical Storm Wutip.  Bands of showers and thunderstorms were revolving around the center of Wutip’s circulation.  Storms near the center of Wutip generated upper level divergence that pumped mass away from the tropical storm.  The removal of mass caused the surface pressure to decrease.

The circulation around Tropical Storm Wutip became more symmetrical on Thursday.  Winds to tropical storm force extended out 105 miles (165 km) from the center of Wutip’s circulation.

Tropical Storm Wutip will move through an environment that will be generally favorable for intensification during the next 24 hours.  Wutip will move over water where where the Sea Surface Temperatures are near 30°C.  It will move under the axis of an upper level ridge over eastern China.  The upper level winds are weak near the axis of the ridge and there will be little vertical wind shear.  However, much of the eastern side of Wutip’s circulation will pass over Hainan.  The increased friction over land will slow the winds in that part of Tropical Storm Wutip.  Tropical Storm Wutip could intensify to a typhoon during the next 24 hours if the center of Wutip remains over water..

Tropical Storm Wutip will move around the western part of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Wutip toward the north during the next 24 hours.  On its anticipated track, the center Tropical Storm Wutip will pass just to the west of Hainan.  Wutip will approach the coast of Guangxi in 24 hours.

Tropical Storm Wutip will continue to bring strong winds and heavy rain to Hainan on Friday.  Heavy rain could cause flash floods in some locations.  Wutip will also bring strong winds and heavy rain to Guangxi during the weekend.

Disturbance Prompts Tropical Storm Watch for Mexico

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The potential risk caused by a tropical disturbance over the Eastern North Pacific Ocean prompted the government of Mexico to issued a Tropical Storm Watch for a portion of the coast on Thursday afternoon.  The U.S. National Hurricane Center designated the tropical disturbance as Potential Tropical Cyclone Four-E.  At 5:00 p.m. EDT on Thursday the center of Potential Tropical Cyclone Four-E was located at latitude 11.3°N and longitude 100.2°W which put the center about 450 miles (725 km) south-southeast of Zihuatanejo, Mexico.  The tropical disturbance was moving toward the west-northwest at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 35 m.p.h. (55 km/h) and there were wind gusts to 45 m.p.h. (75 km/h).  The minimum surface pressure was 1006 mb.

A Tropical Storm Watch was in effect for the portion of the coast from Tecpan de Galeana to Manzanillo, Mexico.

A tropical disturbance over the Eastern North Pacific Ocean exhibited more organization on Thursday afternoon.  Satellite loops appeared to show a counterclockwise rotation in the middle troposphere.  It was unclear if there was a well defined center of circulation at the surface.  Thunderstorms were occurring in bands in the northern and in the southern periphery of the tropical disturbance.  There were few thunderstorms near the broad center in the middle troposphere.

The U.S. National Hurricane Center designated the tropical disturbance as Potential Tropical Cyclone Four-E and began to issue regular advisories on the system.

Potential Tropical Cyclone Four-E will move through an environment favorable for the formation of a tropical cyclone during the next 24 hour.  The tropical disturbance will move over water where where the Sea Surface Temperatures are near 30°C.  It will move under the middle part of an upper level ridge over southern Mexico and the adjacent part of the Eastern North Pacific Ocean.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Potential Tropical Cyclone Four-E is likely to form into a tropical storm during the next 24 hours.

Potential Tropical Cyclone Four-E will move around the southwestern part of a high pressure system over Mexico.  The high pressure system will steer the tropical disturbance toward the northwest during the next 24 hours.  On its anticipated track, Potential Tropical Cyclone Four-E will move closer to the coast of southwestern Mexico.

Thunderstorms in bands in the northern periphery of Potential Tropical Cyclone Four-E will bring gusty winds and locally heavy rain to coastal portions of southwestern Mexico.  The heaviest rain is likely fall in parts of Guerrero, Michoacan, and Colima.  Heavy rain could cause flash floods in some location.

Tropical Storm Wutip Forms Over South China Sea

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Tropical Storm Wutip formed over the South China Sea south of Hainan on Wednesday.  At 5:00 p.m. EDT on Wednesday the center of Tropical Storm Wutip was located at latitude 16.5°N and longitude 110.6°E which put the center about 150 miles (240 km) south of Lingshui, China.  Wutip was moving toward the west at 6 m.p.h. (10 km/h).  The maximum sustained wind speed was 45 m.p.h. (75 km/h) and there were wind gusts to 60 m.p.h. (95 km/h).  The minimum surface pressure was 993 mb.

A low pressure system over the South China Sea strengthened on Wednesday and the Japan Meteorological Agency designated the system as Tropical Storm Wutip.  The distribution of thunderstorms in Tropical Storm Wutip was asymmetrical.  Thunderstorms were occurring in bands in the southern half of Wutip’s circulation.  Bands in the northern side of Tropical Storm Wutip consisted primarily of showers and lower clouds.  The storms in the southern half of Wutip began to generated upper level divergence that pumped mass away to the west of the tropical storm.

There was a large circulation around Tropical Storm Wutip, but the distribution of wind speeds was asymmetrical.  Winds to tropical storm force extended out 110 miles (170 km) in the southern half of Wutip’s circulation.  The winds in the northern half of Tropical Storm Wutip were blowing at less than tropical storm force.

Tropical Storm Wutip will move through an environment somewhat favorable for intensification during the next 24 hours.  Wutip will move over water where where the Sea Surface Temperatures are near 30°C.  It will move under the southern side of an upper level ridge over eastern China.  The upper level ridge will produce northeasterly winds that will blow toward the top of Wutip’s circulation.  Those winds will cause moderate vertical wind shear.  The vertical wind shear will inhibit intensification but the shear will probably not be enough to prevent intensification.  Tropical Storm Wutip is likely to intensify gradually during the next 24 hours.

Tropical Storm Wutip will move around the western part of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Wutip toward the northwest during the next 24 hours.  On its anticipated track, Tropical Storm Wutip will approach the southwestern part of Hainan in 24 hours.

Tropical Storm Wutip will bring gusty winds and heavy rain to Hainan.  Heavy rain could cause flash floods in some locations.