Chance of cyclone near Windward Islands still at 60 percent: NHC
"Environmental conditions still appear favorable for a tropical depression to form during the next couple of days," the NHC said.
The NHC added the system moves westward at 5-10 miles per hour (8-16 km/h).
Tropical cyclones become named tropical storms when their winds exceed 39 miles per hour (63 km/h) and become hurricanes when their winds reach more than 74 mph (119 km/h).
(Reporting by Naveen Arul in Bangalore)