Up to 6 feet of water spilled into an industrial park in the Upper 9th Ward late Monday morning , pouring through small gaps in the concrete flood walls before receding in the afternoon . NE : Gustav weakened to tropical storm . NEW : About 2 million evacuees urged to stay away while damaged assessed . 800,000 lost power , may take weeks to restore , Louisiana government said . Watch breaking hurricane news live on CNN.com .
NE : Gustav weakened to tropical storm . NEW : About 2 million evacuees urged to stay away while damaged assessed . 800,000 lost power , may take weeks to restore , Louisiana government said . Watch breaking hurricane news live on CNN.com .