Pedzisa mutsara unotevera: U.S. Corps of Engineers yakafungidzira kuti inonzi 6 inches of rainfall yaigona kuputsa madhamu akambokuvadzwa. New Orleans' Ninth Ward, iyo yakaona mvura inosvika mamita 20 mukati
Hurricane Katrina, pari zvino iri mumvura yakakwirira kusvika muchiuno sezvo dhamu riri pedyo rakapfuura. Mvura iri kudurura pamusoro pedanda ramatare murutivi rwakafara mamita 100.