I've always been extremely curious about how this works. Perhaps @OceanStWx has gone into great depth about this before, but when it comes to these snow map, if they are all computer generated with human tweaks, how exactly are they derived? Is it a blend of numerous forecast models, an in-house model, one particular model? And what algorithms are used in them...or are they just derived from the model snowfall algorithms (like 10:1 ratio or Kucheria). But then with the human tweaking...across this region that can't be particularly easy, especially if you have little experience/knowledge of the terrain and geographical influences.