the Caribbean's a big area and in fact hurricanes aren't restricted to it - I had to put off driving to Washington some years ago becuase Hurricane Fex was revolving offshore.
So there could be a hurricane around and yet you'll almost certainly be hundreds of miles away and know nothing about it.
I doubt that they've really "forecast" hurricanes, they're probably just making guesses on the basis of sunspots and El Nino, and have the usual list of names lined up. You've got a 99.9% chance of having an entirely hurricane-free holiday. Enjoy yourself!