From my own experience, this storm is supposed to be only a cat 1 hurricane which is a minimal hurricane. It is predicted to come up the East Coast of Florida which will put you on the West side of the storm, which means you will get some winds and maybe some rain but it will not be the strongest portion of the storm, which is East of the eye.
Filling the fresh water tank is a good idea. You should pull in the slides and some people recommend raising your leveling jacks so that the coach rocks on it's suspension, rather than bounces on the jacks, which may cause frame damage.
Make sure that you have full fuel so that you can use the generator and full propane so that you can cook. Empty your waste tanks before the storm.
Have someone walk around your parking place to see if there are any loose branches in the trees that may come down during the storm. Make sure that there are no loose objects around your coach or any of the other coaches near you.
Retract your TV antenna when the storm gets near but try to keep your TV on for updates. In Central Florida you should be able to receive many channels even with the antenna down. Make sure that your cell phone batteries are charged and keep the phone near you.
Let me know where you are at in Central Florida. If you are close to my stick home, I will come and pick you up to stay with us. We have plenty of room and I built the house strong enough for a cat 5 hurricane.