Snow fell by the foot across the Upper Great Lakes and Northern Plains as winter storms threatened to coat highways, power lines and trees with ice as far south as Texas . As much as 10 inches (25 centimeters) of snow was forecast in Minneapolis, according to the U.S. National Weather Service, with 40 inches possible on the coastline of Lake Superior northeast of Duluth as the storm moves into Canada. In Texas and Oklahoma , a half-inch of ice may affect electricity and transportation. “Significant travel impacts are possible during this event,” the weather service said in a winter storm warning for Dallas and Fort Worth. “Ice accumulations may make road surfaces impassable at times through Friday afternoon.” The storms are being fueled by a blast of arctic air that has gripped much of western Canada and is spreading through the U.S., […]