It's like "bomb cyclone" or "firenado." It seems like the sort of phenomenon that would be responsible for the record-breaking blast of cold, snow and wintry conditions that reached all the way to the Gulf Coast this week.

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.

An Arctic blast that began in the northern plains on Saturday spread bitter cold from the Rockies through the East Coast and as far south as Florida by Tuesday morning. A blizzard warning was in effect for southern Louisiana, the furthest south such a warning has ever been posted.

GRAND RAPIDS, MI--Michiganders are experiencing some of the coldest temperatures since the 2019 Polar Vortex this week. Most of Michigan is experiencing wind chill temperatures in the -10 to -25 degree range on Monday and Tuesday. In the western Upper Peninsula, a wind chill of 50 below zero was recorded.

Most schools in New England remained open despite arctic blast. How cold does it have to be to cancel school, and how to keep kids safe in icy temps