On the morning of Aug. 28, 2005, the National Weather Service issued an urgent weather alert.
"Devastating damage expected," the message read. "Most of the area will be uninhabitable for weeks ... Perhaps longer."
A day later, on the morning of Aug. 29 — 10 years ago Saturday — Hurricane Katrina slammed into the Gulf Coast. By that afternoon, the storm had slowly moved on. It appeared that the worst was over.