Environmental conditions are conducive for additional development, and a tropical depression or storm is likely to form in the next day or two as the system moves west-northwestward or northwestward at 10 to 15 mph over the central tropical Atlantic. It has a high (90 percent) chance of formation in the next 48 hours and the next 7 days. Eastern Tropical Atlantic:A tropical wave emerging off the west coast of Africa is producing an area of disorganized showers and thunderstorms. It has a near zero chance of development in the next 48 hours and a low (20 percent) chance in the next 7 days. Information provided by the National Hurricane Center