Tag Archives: Tropical Storm Bud

Tropical Storm Bud Strengthens

Tropical Storm Bud strengthened over the Eastern North Pacific Ocean southwest of Baja California on Thursday.  At 11:00 a.m. EDT on Thursday the center of Tropical Storm Bud was located at latitude 18.3°N and longitude 115.7°W which put the center about 490 miles (790 km) southwest of the southern tip of Baja California.  Bud was moving toward the west-northwest at 14 m.p.h. (22 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 1000 mb.

Tropical Storm Bud strengthened on Thursday.  A weather station at Isla Clarion reported a sustained wind speed of 56 m.p.h. (91 km/h).  Even though Tropical Storm Bud strengthened, the distribution of thunderstorms was asymmetrical.  Thunderstorms were occurring in bands in the southern and western parts of Bud’s circulation.  Bands in the eastern and northern parts of Tropical Storm Bud consisted primarily of showers and lower clouds.  Storms southwest of the center of Bud generated upper level divergence that pumped mass away from the tropical storm.

The circulation around Tropical Storm Bud was small.  Winds to tropical storm force only extended out 45 miles (75 km) from the center of Bud’s circulation.

Tropical Storm Bud will move through an environment that will be marginal for intensification during the next 24 hours.  Bud will move over water where the Sea Surface Temperatures are near 27°C.  It will move under the southwestern part of an upper level ridge over the Southwest U.S. and northern Mexico.  The ridge will produce northeasterly winds that will blow toward the top of Bud’s circulation.  Those winds will cause moderate vertical wind shear.  If the wind shear gets any stronger, Tropical Storm Bud will start to weaken.  Bud will move over cooler water later on Friday.

Tropical Storm Bud will move around the southern side of the subtropical high pressure system over the Eastern North Pacific Ocean.  The high pressure system will steer Bud toward the west during the next 24 hours.  On its anticipated track, Tropical Storm Bud will move farther away from Baja California.

Tropical Storm Bud Forms South of Baja California

Tropical Storm Bud formed over the Eastern North Pacific Ocean south of Baja California on Wednesday.  At 5:00 p.m. EDT on Wednesday the center of Tropical Storm Bud was located at latitude 17.1°N and longitude 112.2°W which put the center about 425 miles (690 km) south-southwest of the southern tip of Baja California.  Bud was moving toward the west-northwest at 16 m.p.h. (26 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 1007 mb.

A low pressure system over the Eastern North Pacific Ocean south of Baja California strengthened on Wednesday afternoon and the U.S. National Hurricane Center designated the system as Tropical Storm Bud.  More thunderstorms formed near the center of Bud’s circulation on Wednesday afternoon.  Those thunderstorms generated upper level divergence that pumped mass away to the west of the tropical storm.  Thunderstorms also formed in bands in the southern and western parts of Tropical Storm Bud.  Bands in the eastern and northern parts of Bud’s circulation consisted primarily of showers and lower clouds.

Winds to tropical storm force extended out 35 miles (55 km) in the southern half of Tropical Storm Bud.  The winds in the northern half of Bud’s circulation were blowing at less than tropical storm force.

Tropical Storm Bud will move through an environment somewhat favorable for intensification during the next 24 hours.  Bud will move over water where the Sea Surface Temperatures are near 28°C.  It will move under the southern part of an upper level ridge over the Southwest U.S. and northern Mexico.  The ridge will produce northeasterly winds that will blow toward the top of Bud’s circulation.  Those winds will cause moderate vertical wind shear.  The wind shear will inhibit intensification but the shear may not be enough to prevent some strengthening.  Tropical Storm Bud could intensify during the next 24 hours.

Tropical Storm Bud will move around the southern side of the subtropical high pressure system over the Eastern North Pacific Ocean.  The high pressure system will steer Bud toward the west during the next 24 hours.  On its anticipated track, Tropical Storm Bud will move farther away from Baja California.

 

Tropical Storm Bud Brings Wind & Rain to Baja California, New Depression Forms South of Acapulco

Tropical Storm Bud brought wind and rain to the southern part of Baja Calfornia on Tuesday while a new tropical depression formed south of Acapulco, Mexico.  At 5:00 p.m. EDT on Thursday the center of Tropical Storm Bud was located at latitude 22.2°N and longitude 109.8°W which put it about 50 miles (80 km) south of Cabo San Lucas, Mexico.  Bud was moving toward the north-northwest at 7 m.p.h. (11 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 1000 mb.

A Tropical Storm Warning remained in effect for the portion of the coast from Santa Fe to La Paz, Mexico including Cabo San Lucas.  The government of Mexico issued new Tropical Storm Watches for the portions of the coast from La Paz to San Evaristo and from Altata to Huatabampito, Mexico.

Rainbands on the northern side of the circulation of Tropical Storm Bud were producing winds to tropical storm force over the southern end of Baja California.  New thunderstorms began to form when a band north and east of the center of circulation moved over the southern part of the Gulf of California.  The Sea Surface Temperature of the water in the Gulf is near 27°C which is warmer than the water of the Eastern North Pacific Ocean south of Baja California.  The additional energy from the ocean may have contributed to the formation of the new storms.

A trough in the upper levels is forecast to steer Tropical Storm Bud toward the north-northeast during the next several days,  Bud could maintain its intensity for another 24 hours if the center of circulation passes southeast of Baja California.  If the center passes over Baja, the mountains would disrupt the circulation in the lower levels and Tropical Storm Bud would weaken.  In either case Tropical Storm Bud will bring gusty winds and heavy rain to the southern end of Baja California for another day or so.  Bud will bring gusty winds and heavy rain to the west coast of Mexico later on Friday.  Heavy rain could cause flash flooding in some locations.

Tropical Depression Four-E formed south of Acapulco on Thursday afternoon.  At 5:00 p.m. EDT on Thursday the center of Tropical Depression Four-E was located at latitude 15.5°N and longitude 100.1°W which put it about 100 miles (155 km) south of Acapulco, Mexico.  It was moving toward the northwest at 6 m.p.h. (10 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 1008 mb.  Because of the proximity to the coast the government of Mexico issued a Tropical Storm Watch for the portion of the coast from Tecpan de Galeana to Punta Maldonado.

A center of circulation developed in a cluster of thunderstorms south of Mexico and the National Hurricane Center designated the system as Tropical Depression Four-E.  The circulation was still organizing.  Several fragmented bands of showers and thunderstorms formed in the outer portions of the circulation.  The center of circulation was broad and there were several smaller cyclonic rotations swirling around inside the broader center.

Tropical Depression Four-E will move through an environment that will be favorable for intensification.  It will move over water where the Sea Surface Temperature is near 30°C.  The upper level winds will be weak and there will be little vertical wind shear.  The proximity to the coast will be the primary factor inhibiting intensification.  The circulation could pull in drier air from Mexico.  Tropical Depression Four-E is expected to strengthen into a tropical storm on Friday.

Tropical Depression Four-E will move around the western end of a subtropical ridge, but the steering currents are likely to be weak.  The depression is expected to move slowly toward the north-northwest during the next day or two.  On its anticipated track the center of the depression could move near the coast during the weekend.  It could bring gusty winds and locally heavy rain.  The rain could cause flash floods.

Tropical Storm Bud Forms South of Mexico, Aletta Weakens

Tropical Storm Bud formed south of Mexico on Saturday while former Hurricane Aletta weakened rapidly to a tropical storm.  At 11:00 p.m. EDT on Saturday the center of Tropical Storm Bud was located at latitude 12.9°N and longitude 102.0°W which put it about 575 miles (920 km) south-southeast of Cabo Corrientes, Mexico.  Bud was moving toward the northwest at 10 m.p.h. (16 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 1003 mb.

The circulation of Tropical Storm Bud organized quickly on Saturday.  A distinct low level center of circulation formed.  Several bands of showers and thunderstorms formed in all parts of the circulation.  Storms near the center of circulation generated upper level divergence which pumped mass away from the tropical storm.  Winds to tropical storms force extended out about 60 miles (95 km) from the center of circulation.

Tropical Storm Bud will move through an environment favorable for intensification during the next several days.  Bud will move over water where the Sea Surface Temperature is near 30°C.  It will move through an area where the upper level winds are weak and there will be little vertical wind shear.  Tropical Storm Bud is likely to intensify steadily during the next day or two and it could intensify rapidly once an eye forms.

Tropical Storm Bud is being steered to the northwest by a ridge over Mexico.  That general motion is expected to continue for several more days.  On its anticipated track Tropical Storm Bud will move roughly parallel to the west coast of Mexico.  Bud could be near the southern tip of Baja California in about five days.

Former Hurricane Aletta moved over cooler water and it weakened rapidly on Saturday.  At 11:00 p.m. EDT on Saturday the center of Tropical Storm Aletta was located at latitude 15.9°N and longitude 114.3°W which put it about 560 miles (905 km) south-southwest of the southern tip of Baja California.  Aletta was moving toward the west at 7 m.p.h. (11 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 999 mb.