The mayor of New Orleans has now said that there are not enough busses to get people out of the convention center and have told people there to just start marching. There are no supplies or food left for them. There are children in these groups!
I have a friend who owns a corporate flying company and flight training school in Green Bay. I'm going to be calling him. Ask around. Who do you know? What can you do?
At the very least, everyone has a local Red Cross or Salvation Army chapter. Go through your closets and those 500 pairs of shoes you'll never wear. Thin out your cupboards. Even office supplies! These rescue organizations can use anything you have to offer.