I do not think it is Its 35 on my side of the mountain and plain rain and the Wunderground map shows just a station or two at or below freezing as of now and rain has already passed through all these locations. So this morning, if I were driving, I would treat it like one of those "bridge freezes before roads" situations if on a small side road but I still cannot see any interstates freezing with all the traffic. FWIW, the WWA was dropped south of the Mason Dixon.