The other thing that is interesting on the GFS is this panel as the deform band is just beginning to develop nw of the low. Has some heavy precip and 850s and surface are cooling at the same time. This is 'recorded' as rain (here) verbatim on the model, but maybe it ends up rain flipping to snow as temps are starting to crash during this window. GFS is also warmer than other guidance. ICON has it too and it thinks it's snow here.