over fifty breaches Damaging in surge protection levees surrounding Surrounding the city of new orleans , louisiana was the cause Causation of the majority of the death Death and destruction Destroying during katrina .

tropical storm katrina was a short-lived , weak tropical cyclone that produced Manufacturing minor damage across areas previously devastated Destroying by hurricane mitch in 1998 .

the initial tropical depression deepened Cause_change_of_strength slowly , and was upgraded Cause_to_make_progress to tropical storm Catastrophe katrina on november 5 .