Cuba handles hurricanes better than the US. (Recently, Hurricane Dennis hit Cuba: one million people evacuated, 16 people killed. Compare and contrast.)So I looked it up.
Cuba evacuated 600,000 people in preparations for Hurricane Dennis according to Wikipedia. Also according to Wikipedia, "The 2000 census put New Orleans's population at 484,674 and the population of Greater New Orleans at 1,337,726." (I added up the populations of New Orleans and the parishes that were ordered evacuated and got 1,354,638.)
Wikipedia says that roughly 150,000 people did not obey the order to evacuate (mostly because they couldn't). So the number of people who did evacuate appears to be more than those who evacuated in Cuba. On the other hand, the people in American basically evacuated themselves whereas, according to Reuters, "Storm fatalities are rare in Communist Cuba where the authorities can muster all state resources to evacuate hundreds of thousands from the path of hurricanes."
Only ten people died in Cuba during Hurricane Dennis (a category 4 storm at the time).