New Orleans is actually BELOW sea level, the other gulf cities and are coastal. Katrina was a very intense hurricane was at a cat 5 just before hitting the coast. Hurricanes of this *intesity* hitting the mainland are rare.
While a dangerous hurricane can go inland, they do lose intensity as they come inland. Hurricanes need warm waters to strengthen and survive.
Orlando is north and inland, making it much safer than coastal regions. The hotels are built to spec to sustain a category 5+ - or so I ws told when we were in WDW during a hurricane last year. Many locals were checking into the hotels to ride out the storm. The WDW parks and hotels do not flood and do not loose power due to sophisticated sewer systems and underground power. That is why locals check into the hotels before a hurricane...you will be safe and very well taken care of. Since WDW does not lose power, you can watch TV and see what's going on. Also there are constant updates on your phone as to what to do and when it's safe to go outside. While many people were checking out and cutting their vacation short...we extended ours by a few days. We also had the greatest time. The parks were closed for 1 day which we were comped for. The morning after the storm, the parks were up and running and you would never know there was a storm. WDW keeps you fed, informed and very safe. From experience, I would stay...