The Met office said the system would produce pockets of moderate to heavy showers, thunderstorms and occasional gusty winds. Tropical storm warnings and watches have been broadcasted throughout several Caribbean islands, including Barbados and Grenada. Hurricane season began in June, but the Atlantic doesn't normally see multiple named storms until August.
Don is moving west at 17 miles per hour, while registering 45 miles per hour max sustained winds.
An Air Force hurricane hunter flew into the system yesterday afternoon, finding it had gained tropical storm status.
Typically, storms don't form there until August and through peak season.
The Atlantic Ocean has been quiet since Tropical Depression Four briefly roamed the central waters from July 6-7, while the eastern Pacific Ocean has yielded two major hurricanes the following week.
The system is expected to run into less favorable upper-level winds after Wednesday, which could keep it from intensifying any more.
Forecasters says there's about a 20 percent chance that storm, located about 800 miles west of the Cabo Verde Islands off Africa's west coast, will become a tropical cyclone.
Satellite animation of Tropical Storm Don just after 10 p.m. Monday.
Residents in Barbados should continue to monitor the progress of Tropical Storm Don and take all necessary precautions.