The power sugar toping like snow isn't why school is canceled. It is the layer of ICE that is underneath it. I grew up in the Rocky Mountains and am no stranger to 6 foot snow drifts, but ice sheets are a totally different thing and out where I live they don't have snow truck to spread salt like they did where I grew up so it is best to wait a few hours until we are up to spring time temperatures than to leave early in the morning only to slide through intersection, off the road, and into stationary objects.