What we are stuck with for now is a pure Pacific air mass. Looking at the 0z EPS, around Feb 3rd-4th there are indications of a somewhat colder regime building into our source region. The AK vortex is weakened but still there, so the flow of air is still largely off the Pac, but there is also some cross polar flow depicted at that time related to the TPV position. Guidance also has the NAO trending neutral around this time. Upshot is the super positive 850 temp anomalies over much of Canada weaken and get replaced with slightly negative anomalies, and some of that "moderate" cold heads SE. Until that occurs, I think we are likely looking at a very low probability of a widespread winter storm, outside of the highlands.
eta- CFS still depicting a +PNA then a developing -EPO heading into mid Feb. So hopefully we see more significant indications of this at the end of the global ens runs the next few cycles. GEPS is there already at D15. Maybe it will actually materialize this time.