At least 10 people died this weekend as a powerful storm swept through a large swath of the United States, bringing widespread flooding and damaging winds to Southern and Eastern states.

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.

A new winter storm is on the horizon, and it could bring heavy snow and ice to the Central U.S. before taking aim at the East Coast. Here's what you need to know.