It's all relative, isn't it? What is a blizzard in D.C. is not as much as what is a blizzard in Wyoming or other places mentioned. Though when you consider the humidity of the eastern snow, the weight is more impressive than that in parts west!

I agree with Bill, though. In WY, it is the sustained winds which really do make the snow come at you sideways without let-up which is considered a blizzard.

On the other hand, a whiteout is a whiteout, so be careful!