A rare frigid storm charged through Texas and the northern Gulf Coast on Tuesday, blanketing New Orleans and Houston with snow that closed highways, grounded nearly all flights and canceled school for more than a million students more accustomed to hurricane dismissals than snow days. In another development, Aerial footage over the Hudson River, which flows 315 miles through eastern New York state, and along Manhattan and North Jersey showed large chunks of ice floating on the water Tuesday. People from the Northern Plains to the tip of Maine are experiencing bitterly cold temperatures as an Arctic air mass is causing temperatures to plunge well below normal values with dangerously cold wind chills. Watch The World Report for the latest updates.