Officials in New Orleans clear tens of thousands of evacuees from the Louisiana Superdome and Ernest Morial Convention Center, where they were living under squalid conditions with little food or water.
Firefighters battle two fires along the Mississippi River waterfront, where 50-foot flames engulfed an industrial district.
FEMA announces that 90,000 square miles were affected by Katrina, an area greater than the size of the United Kingdom.
Utility companies work to restore power to more than 1 million Gulf Coast customers.
The Army Corps of Engineers brings in pumps and generators from around the nation to help get New Orleans pumps back on line and bail out the city.