There was a time when the 2016 blizzard just locked in and we all knew it. I am absolutely NOT saying this is a comparable event or will be the same, or even that these amounts the Euro and GFS are showing will definitely verify. But the Saturday before the 2016 event, a week prior, every single model and ensemble was pounding that Jan. 22-23 time frame as a major winter event. It was just a matter of working out the details. I still vividly remember looking at the discussion in here after the 12Z models on Jan. 16 (that Saturday) and it's like everyone KNEW. Again, not saying this is the same exact thing by any means (or that it's "guaranteed"), but what the ensembles and the deterministic have been showing for the past couple of days is very reminiscent to me. That was a classic setup of course with the blocking, plus an El Nino, etc. So not the same. But you get the idea.