From The National Hurricane Center:
Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 AM EDT Thu Aug 3 2017 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: A large area of showers and thunderstorms centered about 500 miles southeast of the Cabo Verde Islands is associated with a vigorous tropical wave. Environmental conditions are forecast to be conducive for gradual development, and a tropical depression could form by early next week over the eastern or central tropical Atlantic Ocean. This system is forecast to move toward the west or west-northwest at 10 to 15 mph for the next several days. * Formation chance through 48 hours...low...30 percent. * Formation chance through 5 days...medium...60 percent.