but now they have most of the roads wide open here. it is clear that they started the process. very long haul ahead of them, wolf. >> thank you very much. take a look at this terrifying sight repeated over the region over and over yesterday. this tornado bearing down on the university of alabama and tuscaloosa. at least three dozen people in the city were killed. the mayor describes a path of destruction five to seven miles long. up to a mile wide. he calls the devastation unparalleled and says he doesn't know how anyone could have surviv survived. the university now canceling final examinations through next week. postponing commencement until august. let's bring in the severe weather expert, cnn meteorologist chad myers who joining us now. i want you to show our viewers the path of this destruction. where it went and how devastating it was. >> well, we showed that live