PlayAt a Glance A blast of arctic cold air is plunging into the U.S.Several daily cold records will be in jeopardy. An arctic cold outbreak will deliver record-setting, frigid air to parts of the country, including the Deep South through Wednesday. The cold air will have some staying power into the second half of January for some. Beyond that, some moderating of the cold air is likely, especially in the western U.S., next week. That cold air will be kept refrigerated by ample, widespread snowpack over the U.S. thanks to the recent siege of winter storms.