An occasional dusting isn't that rare in Las Vegas. A 4" accumulation would be amazing! My racing software shows LVMS to be 2100' in altitude. Looks like this might be a very good time to own a paint and body shop in Las Vegas! People who don't know how to drive in snow are likely to cause major chaos on the roadways if the predicted accumulations happen, especially those who have 4WD vehicles. Way too many think that just because they can go better in slick conditions means they can stop better too.