At first glance it appears a high is building down on top of Joaquin that would push it into the Carolinas but within that high you see an Upper Level Low building down. That is what the ECMWF saw before the other models - the high breaking down- and that ULL is what is forecast to pull it off to the NNE.
You can also see the stream of tropical moisture acting like a fire hose into the Carolinas.