A tropical wave designated as Invest 94L moved toward the Windward Islands on Sunday. There was a broad counterclockwise rotation in the lower levels of the wave. At 8:00 a.m. EDT on Sunday the center of the broad rotation was located at latitude 7.8°N and longitude 42.8°W which put it about 1250 miles (2015 km) east-southeast of the Windward Islands. The tropical wave was moving toward the west at 20 m.p.h. (32 km/h). The maximum sustained wind speed was 30 m.p.h. (50 km/h) and and there were wind gusts to 40 m.p.h. (65 km/h). The minimum surface pressure was 1009 mb.
A tropical wave designated as Invest 94L was located midway between Africa and the Windward Islands on Sunday morning. Loops of visible satellite images showed that a broad counterclockwise rotation was occurring in the lower levels of the tropical wave. There were mostly showers and lower clouds near the center of the broad rotation. Many of the thunderstorms were in the western and northern parts of the tropical wave. The southern eastern parts of the wave contained showers and lower clouds.
The tropical wave will move south of a subtropical high pressure system over the Atlantic Ocean. The high pressure system will steer the tropical wave toward the west during the next few days. On its anticipated track the tropical wave could approach the Windward Islands on Tuesday.
The tropical wave will move into an environment that is favorable for the development of a tropical cyclone. The wave will move over water where the Sea Surface Temperatures are near 28˚C. It will move through a region where the winds in the troposphere will blow from the east at most levels and there will be little vertical wind shear. The circulation around the tropical wave could gradually become more organized during the next few days. The National Hurricane Center is indicating the probability is 70% that the tropical wave develops into a tropical depression during the next five days. A NOAA aircraft is tentatively scheduled to investigate the tropical wave on Monday, if necessary.