(Over recent output from various models) Russian / Siberian High starts backing west at 120 hours, providing a proxy block through Europe on the Canadian vortex attack across the Atlantic. Low pressure "sink"; substantial but regionally marginal opportunities for the white stuff.
Link-ups to its NW (Scandi) via Arctic High Pressure gain in amplitude over repeated bursts.
I know things keep getting put back but I agree with those seeing a mid Feb finale for this season.