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. Interstate 95 in Virginia and North Carolina is set to be covered with snow and/or ice later Wednesday.

The North Carolina State Highway Patrol says it responded to nearly 1,200 collisions statewide on Wednesday. Virginia State Police reported early Thursday that there had been nearly 500 crashes statewide.