By Rebecca Blatt
Preparations are under way across the region. In northern Virginia, 1,800 trucks will be ready to roll by Friday morning. Maryland's State Highway Administration says it has more than 200,000 tons of salt, nearly 2,200 pieces of equipment and 2,400 people available across the state.
D.C. will deploy more than 200 trucks, and federal authorities will add another 45.
Meanwhile, airports are also getting ready. Southwest Airlines is canceling flights at BWI, Philadelphia and Dulles International Airports starting tomorrow afternoon.