A dangerous winter storm swept the northern U.S. on Friday, with blinding snow in some places, freezing rain in others, and bitter cold temperatures and whipping winds across several states. Authorities in Cook County, Illinois say a man died from cold exposure on Thursday in a Chicago suburb. The massive storm continues a week of strong winter weather for much of the U.S. that has led to deadly avalanches and treacherous ice-covered roads. A man was believed dead after an avalanche in the Idaho backcountry. A Wisconsin man died while snow-blowing his driveway. Political leaders in Illinois implored Texas Gov. Greg Abbott to stop sending migrants to Chicago, which is on the verge of dangerous weather. However, Abbott refused.