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.

Multiple parts of Florida are seeing snow as a winter storm makes its way across the Gulf Coast. On Monday, Jan. 20, Florida Gov. Ron DeSantis declared a state of emergency ahead of dangerously cold wind chills and prolonged freezing and sub-freezing temperatures.

It is the first time in history that blizzard warnings are in effect along parts of the Gulf Coast from Texas into Louisiana.