Evacuation has begun on Louisiana's only inhabited barrier island as Tropical Storm Isaac's path moves west.
Evacuations were also ordered Monday for about 2,000 Plaquemines Parish residents.
Gov. Bobby Jindal called a state of emergency, suggesting people leave low-lying parts of 15 coastal parishes where the National Weather Service called a hurricane warning. He says that if Isaac remains a threat to Louisiana, he may skip the Republican National Convention.