From there, the forecast takes Rafael past Jamaica, which remains under a tropical storm warning, and the Caymans, which remain under a hurricane warning, on Tuesday. The lower Florida Keys and Dry Tortugas are under a tropical storm watch.

Tropical Storm Rafael grew more organized overnight, setting up the Cayman Islands and western Cuba for a hurricane hit on Wednesday. As the storm enters the Gulf of Mexico, its outer bands could bring moderate winds and some rain to Florida, particularly the Keys, which remain under a tropical storm watch.