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 good news is the unrelenting blasts from wintry punches should come to an end this week, meteorologists say.

Officials have urged residents to stay off the roads in portions of Virginia and North Carolina, where a storm dropped heavy snow and caused hundreds of accidents in places that aren’t accustomed to significant accumulations.