11 TV Hill: Mammoth snow cleanup, science behind the storm

It was a storm of historic proportions with a cleanup for the books. Chances are, you were sore for days and your shovel is a bit worse for the wear. In this segment of 11 TV Hill: - Baltimore transportation chief William Johnson talks about the mammoth job of cleaning up the city after the storm. - Heavy snow causes roof collapses throughout the area. - Ava Marie talks about the weather system that has spanned the country.