Millions of Americans from the Ohio Valley to the mid-Atlantic are bracing for a wintry Monday with heavy snowfall, ice, rain and storms, which are forecast to disrupt morning commutes and snarl airline schedules across the East Coast.

The first winter storm of the year and this winter season arrives tonight with developing snow showers from the west.

A major winter storm caused dangerous travel conditions and delays across the central and eastern U.S., including Washington D.C., as snow piled up.