As this thing comes up the coast it's going to  mutatae  into  a  coastal storm or nor'easter  and that is why most of the global models show significant deepening once again it   reaxches eastern NC/  Hatteras.  At that  point it will clearly be ex tropical and pulling  cooler air from a large HIGH   to the north.  So  as the  Hermine  pulls in  cooler air on its nw  side   whole the eastern  side stays  warm/ triopical  it becomes  baroclinic ..  develop  frontal boundaries and it will no long