The GFS is at it again, with its latest run driving the long-ways-off Dec. 23 storm right through a massive Midwest-Northeast high pressure. This is an odd fetish with the GFS long range. You'd think the programmers could address it.
Huge change on the 3k NAM, tucking a low inside the benchmark at 7z, keeping heavy precip of some sort going for the city north and east. SNE really cashes in.