Brandy Battle, of Davant, La., sits on a cot with her son Patrick Bell, 5, on her 27th birthday and the anniversary of Hurricane Katrina, at an evacuation shelter after Isaac made landfall as a hurricane, in Belle Chasse, La., Wednesday, Aug. 29, 2012. (AP Photo/Gerald Herbert)
Gallery: More photos from Hurricane Isaac
Aug. 30, 2012 @ 11:37 AM
Hurricane Isaac poured unrelenting rain Thursday, flooding areas north and south of New Orleans even as the city's fortified defenses held and forcing officials to launch speedy evacuation and rescue efforts in the face of fast-rising waters.