PATCHY BLACK ICE OVERNIGHT ON UNTREATED SURFACES... A markedly colder Arctic airmass will overspread the region overnight, with low temperatures in the upper single digits to low teens. While the colder, drier air pushing into the region will dry up much of the leftover standing water from recent rains and snowmelt, some icy spots and black ice are likely late tonight into Wednesday morning. Proceed with extra caution while outside. Motorists should drive slowly and allow for extra spacing between vehicles.