The National Hurricane Center is watching a new area in the tropical Atlantic, giving a tropical wave approaching the Caribbean a 20 percent chance of development over five days.
The wave is about 750 miles east-southeast of the Windward Islands and is moving west-northwest at about 15 to 20 mph.
Chances for development will wane over the weekend when unfavorable environmental conditions will greet it in the Caribbean Sea, but the system is still expected to bring locally heavy rainfall to portions of the Lesser Antilles during the next few days.
In the Central Atlantic, Subtropical Storm Ernesto has changed little with 40 mph winds just keeping it at storm status.
Dry air is wrapping into the western portion of the system, and there is a limited amount of time for it to strengthen as it will begin moving over cooler waters in the next couple of days.
The storm is expected to peak with 45 mph winds before merging with another low pressure system.