the entire country is keeping an eye on the thermometer right now. over 90 million americans woke up to sub zero temperatures today with some facing blinding whiteout conditions. the windchill in minnesota would approach 70 below. ye yes, 70 below. ryan, i'm going to talk as fast as possible so you can get inside. you're at the epicenter of the deep freeze. how is it going? >> reporter: you've got to think about those folks in minnesota dealing with that windchill of negative 70. we had windchills maybe reaching negative 50 here. when you think about chicago and all the beautiful secenes it ha, people talk about the river. you can see it. it looks like an ice skating rink here. everything is frozen over. what you need to see and hear is the wind whipping through here. it is so cold here.