Tropical Storm Don formed east of the Windward Islands Monday, while a second tropical wave churned in the Atlantic Ocean.
Don had maximum sustained winds of 40 mph as it moved west at 17 mph about 485 miles east-southeast of Barbados, according to the latest advisory from the National Hurricane Center in Miami.
The storm was expected to continue moving west through Wednesday, with little change in strength anticipated.
Don was not expected to be a threat to South Florida.
A second system in the central Atlantic has a much lower chance of developing (20 to 30 percent). It looks as though it will move north before impacting any land.