A massive, deadly ice storm is threatening the United States, stretching from the Midwest to the Great Lakes. With warm, humid air clashing against the Arctic chill, millions of Americans anticipate travel chaos, power outages, and dangerous temperatures this week. Ice storms, notorious for their treacherous conditions, could make travel nearly impossible in hard-hit areas. Meteorologists warn of two more storms bringing snow and icy conditions. Buckle up; it's going to be a frosty, tumultuous week in the US.