The GFS has enough of a CAD signal in place to be snow at the onset. That area averaged sounding is between DC & Baltimore. The injection of cold/dry air will be here to start. The ? is how long does that CAD signal hold on. Not necessarily for snow totals, but also ice potential pic.twitter.com/3W9QJOTStW

— Peter Mullinax (@wxmvpete) January 12, 2022