Schools close in Philadelphia, Baltimore, Pittsburgh as new blast of snow hits Northeast

More than 100 million Americans are under winter alerts Friday as a storm hits the Mid-Atlantic and Northeast.

More than 100 million Americans are under winter alerts Friday as a storm hits the Mid-Atlantic and Northeast and another brutal surge of Arctic air pushes into the South.

Snow is falling from Indiana to Delaware on Friday morning, causing dangerous commutes in Cincinnati, Pittsburgh, Washington, D.C., Baltimore and Philadelphia.

Most areas are forecast to see 2 to 5 inches.

New York City may get 1 to 2 inches of snow -- the second day this week with more than 1 inch of snow following New York City's snow drought of more than 700 days.