Not sure about the model outputs since I wasn't much of a model rider at age ten, but here's the Euro reanalysis. Epic Phail of Phillish proportions. You can tell it really wanted to go places after the first initial maritime trough, but the block, while strong up in Alaska, saw all its midlevel support vanish in spectacular fashion. Going from appreciable cross-polar flow and a lobe with our name on it to a full on +PNA Aleutian low pattern in a matter of two days is zany as hell.
-also note how the NE got two cold snaps out of one trough with that loop-di-loop pinwheel maneuvering there. it really adds onto the idea that the whole atmosphere was about to reconfigure, but then just decided "nah" and immediately reverted to the status quo again.
Just mind blowing that another great opportunity for the first freeze fell apart. The ECMWF was all over it and then over the last couple of runs it got watered down.