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 used to hurricane dismissals than snow days.

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.

A rare winter storm charging through Texas and the northern Gulf Coast on Tuesday has closed highways and airports and prompted the first blizzard warning for southeast Texas and southwest Louisiana.