Current Tropical Weather Outlook (NHC/TPC):
Accompanying satellite image (pop-up, source: NHC)
NWS National Hurricane Center Miami FL
800 PM EDT Thu Aug 16 2018

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

The National Hurricane Center is issuing advisories on Subtropical
Storm Ernesto located several hundred miles east-southeast of Cape
Race, Newfoundland.

A large area of poorly-organized showers and thunderstorms located
about 600 miles east-southeast of the Windward Islands is associated
with a tropical wave.  Some development of this system is possible
over the next couple of days while it moves west-northwestward at
around 15 mph toward the Windward Islands. By late Saturday,
unfavorable environmental conditions should limit the chances for
additional development while the system moves over the eastern
Caribbean Sea.  Regardless of development, this system is likely to
bring locally heavy rainfall to portions of the Lesser Antilles on
Friday and Saturday.
* Formation chance through 48 hours...low...20 percent.
* Formation chance through 5 days...low...20 percent.

$$
Forecaster Beven
More detail in the Tropical Weather Discussion or view the Graphicast Image