From "The Steady Buildup to a City's Chaos" comes this Sunday, August 28 news:
At the Superdome, city officials reckoned that 9,000 people had arrived by evening to ride out the storm. FEMA had sent seven trailers full of food and water -- enough, it estimated, to supply two days of food for as many as 22,000 people and three days of water for 30,000. Ebbert said he knew conditions in the Superdome would be "horrible," but Hurricane Pam had predicted a massive federal response within two days, and Ebbert said the city's plan was to "hang in there for 48 hours and wait for the cavalry."
Followed by this from Tuesday, August 30:
FEMA managed to deliver 65,000 meals to the Superdome, but by the end of the day, water was rising so fast that the agency was unable to unload five more truckloads of food and water.