If both systems become tropical storms or hurricanes, the next names on the 2017 Atlantic Hurricane name list are Don and Emily. Showers and thunderstorms are developing near the center of this system and it looks like further development is possible.
The system, located about 750 miles east of the Windward Islands and moving west at about 15 mph, had no defined center early Monday but was expected to encounter conditions that could help it intensify.
A U.S. Air Force Reserve Hurricane Hunter reconnaissance aircraft is scheduled to investigate the disturbance this afternoon.
The closest one, Invest 95L, will affect the Caribbean, however.More news: Macron expects Trump to reverse decision on Paris accord
Even if no cyclone forms, the system is expected to dump heavy rain on the Lesser Antilles.
The other system is about 800 miles west-southwest of the Cabo Verde Islands.
Forecasters were eyeing a trough of low pressure in the Atlantic Ocean Sunday that has been given a chance of growing into a storm over the next few days.
Its chance of formation is around 20 percent within the next two days, or 30 per cent in the next five days.