P.J. Hahn, Coastal Zone Director for Plaquemnies Parish, walks on a levee to survey flooding from Isaac, which is expected to make landfall in the region as a hurricane this evening in Venice, La., the southernmost tip of the state, Tuesday, Aug. 28, 2012. Forecasters at the National Hurricane Center warned that Isaac, especially if it strikes at high tide, could cause storm surges of up to 12 feet (3.6 meters) along the coasts of southeast Louisiana and Mississippi and up to 6 feet (1.8 meters) as far away as the Florida Panhandle. (AP Photo/Gerald Herbert) ORG XMIT: LAGH115