For what it's worth DT agrees with you. He's saying 20+ for the Shen Valley and Western Md. Possibly pushing east of the Blue Ridge.
Really worried about the temps over the next couple weeks. Lots of retired folks out this way that are going to need help digging out.
Yeah. it keeps the upper levels below zero for the duration DC and NW. Regardless, you are going to get hammered with the front end thump even if it does flip. Really nice storm for you too.