"Huge areas of Louisiana are going to be devastated. We're going in essence to see what Katrina didn't destroy, what Rita didn't destroy in 2005 is being destroyed now in 2008," said Ivor Van Heerden, a professor at Louisiana State University who wrote a book about why the levees broke during Katrina.
For Dawn and Eric Young of east New Orleans, the risk just does not seem worth it any more. Three years after their home was flooded, they finally finished the last repairs, just in time for Katrina's cousin, Gustav.
They've decided that if even if the city doesn't flood, they're still moving.
"No there's no coming back," said Dawn. "This is it."
Morgan City, some 87 miles west of New Orleans is expected to be hit by the eye of the storm.
Morgan City Mayor Tim Matte said there is a 24 foot sea wall with levees protecting the city. He said residents were ordered to evacuate on Saturday.