NWS National Hurricane Center Miami FL
For the North Atlantic…Caribbean Sea and the Gulf of Mexico:
1. A broad low pressure system, associated with a tropical wave, is producing a large area of disorganized showers and thunderstorms several hundred miles south and southwest of the Cabo Verde Islands. Environmental conditions are conducive for this system to consolidate and develop during the next few days, and a tropical depression is likely to form by early next week while moving west-northwestward at about 15 mph across the tropical Atlantic Ocean.
* Formation chance through 48 hours…medium…50 percent.
* Formation chance through 5 days…high…80 percent.
2. A large area of cloudiness and thunderstorms located over the central and eastern Caribbean Sea is associated with a tropical wave. This disturbance is expected to move west-northwestward at about 15 mph across the western Caribbean Sea and Bay of Campeche through the middle of next week, where environmental conditions appear conducive for development.
* Formation chance through 48 hours…low…20 percent.
* Formation chance through 5 days…medium…60 percent.
Source: The Daily Herald https://www.thedailyherald.sx/islands/68231-tropical-weather-outlook-800-am-edt-fri-aug-4-2017