Hi and thanks for bumping this up.
For the map name it shouldn't be more than 2 words. One word would be the best though.
As this game is coming from Finland and that in Finland it happens sometimes that you have some snow 11 months a year (hrhr) I thought that a name with a finnish touch would be nice.
I like "frostbite" and "cold front" though.

my suggestions: "lumi" (snow in finnish), Lapland (or Lappi in finnish, which is a northern region of Scandinavia mostly within the arctic circle). Maybe pasik has some other ideas in that direction as my finnish is pretty rusty