New Orleans 1980s and 1990s, scientists observed that extensive, rapid, and ongoing erosion of the marshlands and swamp surrounding New Orleans, especially that related to the Mississippi River – Gulf Outlet Canal, had the unintended result of leaving the city more vulnerable than before to hurricane-induced catastrophic storm surges. New Orleans was catastrophically affected by what Raymond B. Seed called "the worst engineering disaster in the world since Chernobyl", when the Federal levee system failed during Hurricane Katrina in 2005. By the time the hurricane approached the city at the end of August 2005, most residents had evacuated. As the hurricane passed
New Orleans tornado of 2017 that toppled a metal truss tower, badly damaged a metal building, and destroyed manufactured homes. An EF1 struck the town of Donaldsonville, causing considerable damage to structures and killing one person. A large EF2 wedge tornado that passed near Killian and Akers downed many trees and destroyed small house built on a cinder block foundation. Another EF2 destroyed a flea market near Harperville, Mississippi as well. A total of 15 tornadoes were confirmed across parts of Louisiana, Mississippi, Alabama, Florida, Georgia, Tennessee, and Kentucky. New Orleans tornado of 2017 The New Orleans tornado of 2017 was a large and powerful