(ACCUWEATHER) — A storm crossing the country will create travel nightmares for millions from the Plains to the mid-Atlantic through Monday.

Snow will expand from the northern Rockies and central Plains to portions of the Midwest this weekend, reaching the Northeast and mid-Atlantic on Sunday through Monday.

Snowfall from the cross-country storm will exceed 1,500 miles on its journey. Along that journey, more than 6 inches of snow will occur along the Ohio River and just south of the I-70 corridor from Kansas City, Mo., to St. Louis to Cincinnati, to Clarksburg, W. Va., to Harrisonburg, Va., to Washington, D.C., to Philadelphia and Trenton, N.J.

Some locations along this swath could end up with a foot of snow or more.

Note: Read our discussion guidelines before commenting.