Tag Archives: Tropical Depression Amanda

Tropical Depression Two-E Forms South of Acapulco

Tropical Depression Two-E formed over the Eastern North Pacific Ocean south of Acapulco, Mexico on Sunday.  At 2:00 p.m. EDT on Sunday the center of Tropical Depression Two-E was located at latitude 15.7°N and longitude 99.8°W which put the center about 85 miles (135 km) south of Acapulco, Mexico.  The tropical depression was moving toward the northeast 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 1005 mb.

The government of Mexico issued a Tropical Storm Warning that is in effect for the portion of the coast from Laguna de Chacahua to Tecpan de Galeana.  The Tropical Storm Warning includes Acapulco.

A low pressure system over the Eastern North Pacific Ocean south of Acapulco strengthened on Sunday and the U.S. National Hurricane Center designated the system as Tropical Depression Two-E.

A few more thunderstorms were forming near the center of Tropical Depression Two-E on Sunday afternoon.  More thunderstorms were also developing in bands revolving around the center of the tropical depression.  Storms near the center of Tropical Depression Two-E started to generate upper level divergence that was pumping mass away to the west of the tropical depression.  The removal of mass was causing the surface pressure to decrease slowly,

Tropical Depression Two-E will move through an environment somewhat favorable for intensification during the next 18 hours.  The tropical depression will move over water where the Sea Surface Temperatures are near 31°C.  It will move under the southeastern part of an upper level ridge that is over Mexico.  The upper level ridge will produce easterly winds that will blow toward the top of the tropical depression.  Those winds will cause moderate vertical wind shear.  The moderate vertical wind shear will inhibit intensification, but the wind shear may not be enough to prevent intensification.  Tropical Depression Two-E could intensify to a tropical storm.

Tropical Depression Two-E around the western side of a high pressure system that is over southeastern Mexico.  The high pressure system will steer the tropical depression toward the north during the next 24 hours.  On its anticipated track, Tropical Depression Two-E will make landfall on the coast of Mexico east of Acapulco in less than 24 hours.

Tropical Depression Two-E could be a tropical storm at the time of landfall.  In any case, the tropical depression or tropical storm will being strong winds and heavy rain to Guerrero and Oaxaca.  Heavy rain is likely to cause flash floods in some locations.

Elsewhere over the Eastern North Pacific Ocean, Tropical Depression Amanda continued to weaken slowly far to the east-southeast of Hawaii.  At 11:00 a.m. EDT on Sunday the center of Tropical Depression Amanda was located at latitude 11.5°N and longitude 135.4°W which put the center about 1425 miles (2295 km) east-southeast of Hilo, Hawaii.  Amanda was moving toward the southwest at 5 m.p.h. (8 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 1007 mb.

Amanda Weakens to a Tropical Depression

Former Tropical Storm Amanda weakened to a tropical depression over the Eastern North Pacific Ocean east-southeast of Hawaii on Saturday.  At 5:00 p.m. EDT on Saturday the center of Tropical Depression Amanda was located at latitude 12.3°N and longitude 134.7°W which put the center about 1445 miles (2325 km) east-southeast of Hilo, Hawaii.  Amanda was moving toward the southwest at 5 m.p.h. (8 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 1007 mb.

Former Tropical Storm Amanda weakened to a tropical depression on Saturday.  A combination of dry, stable air and vertical wind shear caused many of the remaining thunderstorms in Amanda’s circulation to dissipate.  A few thunderstorms were still occurring in bands in the western side of Tropical Depression Amanda.  Most of the bands revolving around the center of Amanda’s circulation consisted primarily of showers and lower clouds.

There were no thunderstorms near the center of Tropical Depression Amanda to generate upper level divergence.  Convergence of mass in the lower levels of the atmosphere caused the surface pressure to increase slowly.

Tropical Depression Amanda will move through an environment unfavorable for intensification during the next 24 hours.  Amanda 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 that is west of Mexico.  The upper level ridge will produce southeasterly winds that will blow toward the top of Amanda’s circulation.  Those winds will cause moderate vertical wind shear.  In addition, Tropical Depression Amanda will continue to move through a region of drier air.  The vertical wind shear and the drier air will cause Tropical Depression Amanda to continue to weaken during the next 24 hours.

Tropical Depression Amanda will move around the southern part of a high pressure system that is over the Eastern North Pacific Ocean.  The high pressure system will steer Amanda slowly toward the west-southwest during the next 24 hours.  On its anticipated track, Tropical Storm Amanda will remain far to the east-southeast of Hawaii.