Get your boat up in a canal or bayou somewhere. Yes, it's a large boat but if you can get it tied off on four corners you might have a chance at getting it to ride out the storm. We used to do this in the area I lived in. As long as everyone tied their boats securely; all were OK. I agree, get it out of the marina - you can't trust everyone to secure theirs and that will destroy yours.
God speed, my friend.