A low pressure system formed over the Caribbean Sea on Wednesday.  The low pressure system was designated as invest 99L.  At 10:00 a.m. EST on Wednesday the center of Invest 99L was located at latitude 16.1°N and longitude 77.6°E which put the center about 140 miles (225 km) south-southwest of Kingston Jamaica.   Invest 99L was moving toward the west at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 25 m.p.h. (40 km/h) and there were wind gusts to 35 m.p.h. (55 km/h).  The minimum surface pressure was 1007 mb.

The circulation around Invest 99L was large, but it was not well organized.  There were at least three smaller counterclockwise circulations revolving around inside the larger circulation.  One of the smaller circulations was north of Honduras.  A second smaller circulation was southwest of Jamaica and the third smaller circulation was southeast of Jamaica.  Bands of showers and thunderstorms were revolving around each of the smaller circulations.

Invest 99L will move through an environment favorable for the formation of a tropical cyclone during the next 24 hours.  Invest 99L will move over water where where the Sea Surface Temperatures are near 29°C.  It will move under the middle of an upper level ridge over the Caribbean Sea.  The upper level winds are weak near the middle of the upper level ridge.  Invest 99L is likely to develop into a tropical depression or a tropical storm during the next day or two.

Invest 99L will move around the southern part of a high pressure system over the western Atlantic Ocean.  The high pressure system will steer Invest 99L slowly toward the west during the next 24 hours.  On its anticipated track, Invest 99L will move slowly toward Nicaragua and Honduras.