One thing I will say is that models almost always underestimate the speed and intensity of the low level cold. To see numbers like we are seeing at this range makes you wonder how cold it may get. Especially if we can get a good blanket of snow on the ground.
The data pouring in for the medium/long term range is just mind blowing and locked in for the majority of the Nation east of the Rockies. Is this how the weather maps looked like back in the late 70's??? My goodness....
GFS went big and further south on that system the 4th-6th and has some ensemble support. It would definitely be a surprise to see that be our storm window since it always looked like the trailing system was the better bet. For now it's on its own though with the EPS further north still.