Natural Occurance or Signs from Above...

I didn't take this picture but this is the weird view I saw last night on my way to NJ. According to ABC Philadelphia these "snow columns" were caused by snow evaporating before it hits the ground. It was one of the coolest things I've ever seen, but very weird because I had no idea at all what I was seeing. At first I was sure Nan had something to do with it... you never know with her ;-)