Tropical Storm Isaac Weakened, But Still Dangerous

NEW ORLEANS (AP) - Isaac soaked Louisiana for yet another day and pushed more water into neighborhoods all around the city, flooding homes and forcing last-minute evacuations and rescues. New Orleans itself was spared, thanks in large part to a levee system built after Katrina.

As the storm slogged its way across the state and windy conditions calmed, the extent of some of the damage became clear. Hundreds of homes, perhaps more, were underwater, thousands of people were staying at shelters and half of the state was without power. About 500 people had to be rescued by boat or high-water vehicles, and at least two people were killed.

And the damage may not be done. Officials were releasing water from an Isaac-stressed dam at a lake near the Louisiana-Mississippi border, hoping to ease the pressure. They had also started work on a levee breach in hard-hit Plaquemines Parish. In Arkansas, power lines were downed and trees knocked over as Isaac moved into the state.

Farther south, where evacuations were ordered ahead of the storm, Isaac's unpredictable, meandering path and the amount of rain - as much as 16 inches in some places - caught many off guard.

Weakened, but still dangerous, Tropical Storm Isaac continues its northward march across Louisiana. ABC's Jim Ryan tells us many people who didn't evacuate had to be rescued.