I happened to catch part of that very snowy Green Bay Packers game while I was eating at D'arcy's Pint tonight. For the first time in my life I realized why the Packers have those stand-out green and yellow uniforms.
So they can see each other in Green Bay blizzards. That surely gave them an advantage over the mostly white-clad Seattle Seahawks. On the other hand, being dressed in white could turn your ball runner stealth in such conditions. Anyway, the Packers won, so advantage colors.