A powerful winter storm swept across the central and eastern United States, knocking out power and snarling travel during one of the busiest stretches of the holiday season.
The wide-ranging storm brought blizzard conditions, strong winds, an ice storm and tornadoes and is being followed by extreme temperature drops that are plunging millions back into the throes of winter.
The storm adds to an already challenging travel period, with more than 100 million people expected to drive for end-of-year trips.
Three semi-trucks and at least 20 vehicles were involved in a major pileup on Interstate 75 in Detroit late Monday morning. Travelers faced bursts of snowy conditions and strong winds…
