A major snowstorm will hit areas from Philadelphia to Boston with heavy snow and wind and could immobilize areas from near Washington, D.C., to the southern Appalachians with blizzard conditions by the weekend.
The storm will bring significant snow to more than 50 million people and could bring travel to a standstill in part of the mid-Atlantic states.
As the storm strengthens, winds will increase as snowfall rates ramp up. An all-out blizzard will unfold in some areas. Whiteout conditions will occur in several states. The storm is likely to shut down some highways and could cause some airports to close.