Tropical trouble brewing for Bahamas, Puerto Rico and Southeastern U.S.

We're near the peak of hurricane season, and activity in the Atlantic Ocean is heating up quickly. 
One tropical system which, as of Tuesday morning was known as a tropical wave, could soon become tropical storm Hermine as it heads west-northwest toward the Bahamas and Puerto Rico. 
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Farther out into the Atlantic is a Cape Verde-type tropical storm, named Gaston. Cape Verde storms form far in the eas