A monster storm is beginning to organize over the Northern PLains to the Southeastern US states this afternoon, a large energetic disturbance is causing a southwesterly jet to enhance precipitation across the Southeast, a large plume of low level moisture sits off the southwestern Peninsula of Florida at this time in the form of major thunderstorms producing a lot of rain.  Cold air is coming southward from the arctic region in the form of an upper level trough this trough will enter the US tomorrow morning in the form of a potential closed off upper level low, the newest 12z models produce 1-2' of snow for the Cape and Islands, before all said and done central MA and CT will receive 1-2' while the eastern MA and RI coastlines will receive the most snow from this storm, this looks like an all snow event on all models.  2-3' looks more probable at this time, this is a high end snowstorm event with wind potentially reaching hurricane force in gusts, stay tuned!