An arctic air mass that brought snow and ice to an area stretching from the Rocky Mountains to northern New England on Monday was poised to give way to record-breaking cold temperatures. In Chicago, where as much as 6 inches (15 centimeters) of snow fell, an Envoy Air flight from Greensboro, North Carolina, slid off an icy runway at O’Hare International Airport as it tried to land at about 7:45 a.m. None of the 38 passengers and three crew members were injured, according to the city’s aviation department. And in Kansas, the highway patrol reported that a truck driving on...
