I went through a couple of floods as a volunteer. Survivors reactions will vary from depression, to quiet contemplation, to wanting to start recovery efforts immediately, to feeling of invincability (they have already lived through the worst, have nothing to fear now) to an almost eerie desire to restore normalcy- ie inappropriate humor, dark humor (If I don't laugh I will cry).
I feel for the survivors, I really do. The have suffered and lost, and many now have no homes, no jobs, and no idea what will be in their future. They don't even know what all they have lost yet. And it is too overwhelming to consider.
But the ones I really sympathize with right now are the police officers, firefighters, emergency personnel, and others who are active in the survival efforts.
They have now been something like 36 hrs with no rest (maybe more- there would have been a lot of preparation work to be done before the storm) little food eaten on the run, they may not know the status of their own homes, they may not even know the status of their own families. They have gone through the efficient phase, the exhaustion phase, the second wind phase, and are now probably in the dogged phase- and there is no relief in sight. And even when relief gets there- they won't want to stop, because it will feel like giving up. They also need your thoughts and prayers.