I live here and am sailing this Friday on the Dream to the Bahamas, as of now. I have a funny feeling we're going to get an extra day at sea closer to the FL coast depending on when Maria turns. Of course, they could route us someplace else completely. As a person who is sensitive to motion sickness (I wear a patch) I am not excited about getting on this boat.
For those of you coming to FL or sailing shortly after the 23rd, you should be fine. She's predicted as of this morning to spin out into the Atlantic on Friday/Saturday but it depends on Jose and when she'll start to take that turn. Looks like the turn will begin on Thursday some time. No threat to FL in anyway at this point.