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.

A major winter storm that slammed Texas and the northern Gulf Coast is spreading heavy snow, sleet and freezing rain across parts of the Florida panhandle and eastern Carolinas.

A powerful and rare winter storm swept across the South on Tuesday, bringing the first-ever Blizzard Warning to the Gulf Coast and blasting communities from Texas to Florida to the Carolinas with record-shattering snow that snarled travel and brought daily life to a halt.