How Hurricane Katrina unfolded, from a weather perspective - ABC News(01)

How Hurricane Katrina unfolded, from a weather perspective - ABC News(01)

Image gallery: Katrina Jade Pics

Katrina at 20: We remember the storm. How about its lessons? How Hurricane Katrina unfolded, from a weather perspective - ABC News Taking a closer look at Hurricane Katrina 20 years later - Good Morning