Nothing brings on snow more than no snow in the long range ensemble runs!
Seriously, as long as it’s cold, there’s a chance something materializes. I would be more worried if they were showing relaxation like earlier in January, which they not look to be, just moderation of a very anomalous cold pattern. Euro weeklies still look decent in terms of pattern, and they have been pretty good this winter in terms of general 500mb conditions/outcomes…