In a negative NAO, cold and snow is encouraged to hit the East US, but the placement of where the negative NAO is key. There is an east-based and west-based phase of the NAO. In a west based NAO, the most prevalent sign of a certain NAO phase is to the west of Greenland. For example, if there were a west-based negative NAO, the ridge that produces the negative NAO would be to the west of Greenland. In an east-based NAO, the ridge would then be to the east of Greenland. The NAO will likely be in the east-based phase when this storm rolls around, meaning that the Midwest would be favored for cold and snow rather than the Northeast, hence why I was promoting a north track more than this new south track consensus.