Guess this answers my earlier question:

Via his blog Dr. Jeff Master has referred to Fay as "unprecedented" and then added "I can't ever recall seeing such a large pressure fall while a storm was over land." Even he seems stumped by this turn of events, commenting "To have a storm intensify over land and maintain that increased intensity while over land for 12 hours is hard to explain".

And yet the crazyness continues as the models seem to be coming together, thus the NHC is now showing Fay has a good chance of making a THIRD landfall in northern Florida.