Saturday is one of those situations that give me pause. There is nothing on the models tonight that would make me think this will be anything but a period of sleet mixed with snow changing to rain for the U.S. 460 corridor (Blacksburg-Roanoke) and southward, with maybe some minor slushy accumulation. There will be more to the north, where the winter weather advisory is issued. But so many times we’ve seen these situations where the moisture runs headlong into cold air that is very dry in the layers above the surface, and it ends up snowing pretty hard for at least a couple of hours. So let’s keep an eye on radar, on the sky and surface observations on Saturday just in case this cooks up a little more than what seems to be on the menu. If you are driving north, be aware that whatever it is like in the Roanoke and New River valleys, it will almost certainly be more treacherous the farther north you go. There may be a zone along the Virginia-West Virginia border above I-64 that has some 6+ inch reports by Saturday evening.
Oh … and if you haven’t heard … the blog comment system on Roanoke.com is changing dramatically on Thursday. Click here for an explanation from Editor Joe Stinnett and add to the more than 200 comments if you wish. Or you can read many comments from Weather Journal commenters about the subject on the last thread linked here.