The cold weather has been the talk of the town as of late. On Thursday, air temperatures have been in the upper 30s-low 40s, but it's the wind that really brings the bite.

Wind chill has been below freezing since about midnight Thursday. You often hear Chief Meteorologist Bill Vessey and meteorologists Kristin Diaz and Alan Holt talking about wind chill, but what is it exactly?

Alan went Live from out in the cold with the answer to that question.