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It has been stated in the evacuation order that, beginning at noon on August 28 and running for several hours, all city buses were redeployed to shuttle local residents to, "refuges of last resort," designated in advance, including the
Louisiana Superdome.
[6] They also said that the state had prepositioned enough food and water to supply 15,000 citizens with supplies for three days, the anticipated waiting period before FEMA would arrive in force and provide supplies for those still in the city.
[6] Later, it was found that FEMA had provided these supplies, but that FEMA Director
Michael D. Brown was greatly surprised by the much larger numbers of people who turned up seeking refuge and that the first wave of supplies were quickly depleted.
[6] The large numbers were a direct result of the insufficient mobilization and evacuation before Katrina's arrival, primarily due to city and state resistance to issuing an evacuation order and risk "crying wolf" and losing face should the hurricane had left the path of model prediction. Had
contra-flow on highways been initiated sooner and more buses begun evacuating families (including the idle school buses that were not used at all) the numbers of stranded New Orleans occupants would have been significantly less making the initial wave of FEMA supplies adequate and even excessive.