Eventually the trough in the means slides east and amplifies in virtually all guidance, that's huge red flag that there's going to be at least one pretty massive storm somewhere in the vicinity of the OH/TN Valleys or Great Lakes that interacts the PV lobe coming down out of Canada, eventually helping to establish the coveted SE Canada gyre that we often need to shear & suppress shortwaves within the subtropical jet in addition to supplying us with copious amounts of cold air.
Contrary to what some have claimed here earlier wrt a pattern like this largely being cold & dry, I actually think it's probably going to be active or try to be anyways given we're in an El Nino event that will also become superimposed onto a west-central Pacific MJO event at the end of the month which often invigorates the subtropical jet and the waves within it in our part of the world.