time's square to ring in the new year two nights from now. it will be cold. not just here in new york. most of the country will be 20 to 40 degrees colder on new year's eve, allison chinchar is in the weather center. how cold are we talking about this weekend? >> it's not even cold, that's not the right word. i would sigh frigid. look at some of these wind chills. we have wind chill advisory, watches and warnings if effect for over 30 million people. this is the combination of the cold temperatures, also the wind. it will make that feels like temperature minus 25 to my fuss 45 for some of these regions. waking up tomorrow in boston, it's going to feel like minus 13. chicago, by the time you are starting off the new year, minus 23 is the feels-like temperature. that's because we have yet another wave of cold air that's going to be moving back if as we go sunday into monday. now, the main concern with this is what it does to your body. okay. you have to understand.