I moved to New Orleans from Chicago in 2007.
Went to Orlando for Gustav.
I moved back to Chicago 4 weeks ago.
I was talking to friends last night who live in Nola.
About 50 50.
Some are staying, some went north of the city and a few left Louisiana.
If I still lived there... I would stay and ride this one out.
But I lived in Metairie by the lake.... my street did not flood during Katrina. As long as you have plenty of food, water and other emergency essentials... "Y"
you should be ok.
Everyone be safe!