The world has turned white where I live, some 300-500 feet above most of the Roanoke Valley. It’s now about half an inch deep on grass, exposed objects, trees at my south Roanoke County location, and there are similar reports southward into the even higher elevations. “White rain” — snow melting on contact — may continue for a few more hours at some lower elevations, with temperatures gradually dropping through the day, heavier periods of snow perhaps collecting slushy white on grass and car tops and trees and such. All of this is just the preliminary action, with significant accumulations of 3-plus inches depending largely on the action of the upper-level low moving south of us later today. The combination of deeper moisture, much colder air aloft and atmospheric action with the low dropping temperatures further will give us the best chance of heavier snow. Where exactly any bands that could produce 5-plus inches of snow set up will be a matter of watching the radar and following ground observations. A lot of modeling suggests this could be a little south of the Roanoke-Blacksburg area, but details like that are often not modeled perfectly in a complicated atmospheric setup like this. In the meantime, whatever snowfall occurs before the mid-afternoon to mid-evening period is bonus.