Tropical Storm Igor is drifting in the Atlantic off the coast of Africa near the Cape Verde Islands.
Maximum sustained winds for the storm Thursday are near 40 mph (65 kph). The National Hurricane Center in Miami says the storm could begin strengthening some on Friday.
A tropical storm watch has been issued for the southern Cape Verde Islands.
The storm is located about 30 miles (45 kilometers) west-southwest of the southernmost Cape Verde Islands and is moving north-northwest at about 6 mph (9 kph).