Tropical Depression One-E formed west of Mexico on Tuesday afternoon. More thunderstorms developed close to the center of a low pressure system over the Eastern North Pacific Ocean and the National Hurricane Center designated the system as Tropical Depression One-E. At 5:00 p.m. EDT on Tuesday the center of Tropical Depression One-E was located at latitude 15.2°N and longitude 105.7°W which put it about 280 miles (450 km) south-southwest of Manzanillo, Mexico. The depression was moving toward the west-northwest at 15 m.p.h. (24 km/h). The maximum sustained wind speed was 30 m.p.h. (50 km/h) and there were wind gusts to 40 m.p.h. (65 km/h). The minimum surface pressure was 1007 mb.
The circulation around Tropical Depression One-E exhibited greater organization on Tuesday afternoon. Several short bands of showers and thunderstorms were developing near the center of circulation. One band was north of the center, another was west of the center and a third band was south of the center of circulation. Bands east of the center consisted primarily of showers and lower clouds. Thunderstorms near the center of circulation were beginning to generate upper level divergence which was pumping mass away from the tropical depression.
Tropical Depression One-E will move through an environment favorable for intensification during the next day or two. The depression will move over water where the Sea Surface Temperature is near 28°C. It will move south of an upper level ridge over Mexico and the Eastern North Pacific Ocean. The ridge will produce northeasterly winds which will blow toward the top of the circulation. Those winds will cause some vertical wind shear which will slow the rate of intensification, but the shear will not be strong enough to prevent intensification. Tropical Depression One-E is likely to intensify into a tropical storm during the next 24 to 36 hours.
A subtropical ridge north of Tropical Depression One-E will steer the depression toward the west-northwest. On its anticipated track Tropical Depression One-E will move away from Mexico. It is forecast to pass south of Baja California.