More than 60 million people are under winter alerts nationwide, with a powerful weather system expected to bring a potent mix of snow, ice and blizzard conditions, accompanied by winds gusting up to 50 mph. The winter storm, which has already caused snowy and icy conditions in the Central Plains, will create treacherous travel conditions and potential power outages across a vast region stretching from Kansas to the mid-Atlantic. “For some, this could be the heaviest snowfall in over a decade,” NOAA’s Weather Prediction Center warned.