From AP:
A developing winter storm threatens to drop snow, sleet and freezing rain on parts of Texas, Oklahoma and Arkansas as frigid air that escaped the Arctic plunges temperatures to subfreezing levels in some of the southernmost points of the U.S. An arctic blast descended on much of the U.S. east of the Rockies over the weekend, causing hundreds of car accidents and thousands of flight cancellations and delays. Several communities set up warming shelters this week, including one at a roller rink in Cincinnati and another in the Providence, Rhode Island, City Council chambers.