For Sunday/Monday, the models are going about this storm in slightly different ways. The Euro is keying on the southern wave in the gulf and detaches it a bit from the northern stream as it moves out of the gulf then northeast into the eastern Carolinas - this evolution is on the warmer side. The FV3 and UKMet are keying on the northern stream wave that drops down into Bama, then east into the Carolinas, while moreso depositing the southern wave in the gulf - this evolution is a bit colder. The GFS is kind of a blend of the two camps. I would root for the FV3/UKMet solution, but with a stronger dive and "bottoming out" of the northern stream wave. There is a long line of storms going back in time that have trended west in that area off the SE coast. The early Jan storm last year kept trending west, for example....but getting the temps and storm to cooperate will be a bit of a challenge.