It's not another polar vortex ... but don't tell THAT, to those in the northeast and mid-atlantic states ... who are being clobbered by snow and really cold temperatures. And just like that polar vortex .. travel troubles are expected .. including some flights here. We have more on that .. from Weather Authority meteorologist Rebecca Barry who is joining us from the forecast center. Rebecca, how bad is this expected to be? 3 3 It looks prettiest from space- in this picture Nasa from space- in It looks prettiest It looks prettiest from space- in this picture Nasa released of the artic front you don't quite get the same feeling as when you look at video from Earth's surface. The artic, icy blast of winter weather threatens to paralyze travel across most of the Eastern US. 3 to 9 inches of fresh snow is expected to blanket the roads and airports from Virginia to Massachusetts, with temperatures plunging down into the single digits. The temperatures are expected to remain 10 to 15 degrees below average until the weekend- we spoke to one of Channel 4's own, Charles Chunn,our research director- who was on one of the last flights that made it into New York City this morning. 3 3 3 3 Air travel delays?