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 rare and potentially historic winter storm is bringing heavy snow to Texas and the Gulf Coast while nearly 220 million people across 40 states are facing dangerously cold temperatures from an arctic blast that arrived over the weekend.

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.

An historic January storm dumped more deep snow along the U.S. Gulf Coast on Wednesday after bringing Houston and New Orleans to a near standstill over the past two days and burying parts of Florida's Panhandle with accumulations more typical of Chicago.