The last in a long train of storms will bring snow and ice to the Mid-Atlantic and Carolinas on Wednesday. While Washington will be near the northern edge of the storm starting late in the morning — with a dusting to a half-inch of snow possible in the District and areas to the south by the evening — impacts will be moderate to major farther south.

The National Weather Service issued a black ice advisory through 10 a.m. Friday for the greater Richmond region, as well as Hampton Roads, the Middle Peninsula, the Northern Neck and