It's one of those things I think about every time a big storm is in the forecast. Especially when the forecast turns out to be not quite on the money - and we get considerably less snow than expected. It happened again last week, when the nebulous "snow-rain line" did what is always seems to do. It shifted, or "wobbled" as one local forecaster insisted on telling us. Reporter Alex Rose talked to some experts about what all this weather mayhem actually costs.