GEFS still has that Feb 5-7 period as a time where some sort of low moves under the giant Canada ridge/block. Cold air is limited, but it’s got some interest. After that GEFS seems reluctant to get rid of the west coast trough quickly. Seems tied to how quick the Aleutian low is reestablishing.
They are sliding down the east side of the big central Canada ridge. They need to go to our west/south to have any chance, but guidance has shown it enough that it seems possible. Cold air is lacking though, to put it mildly.