[manacit]

There are absolutely people doing this professionally for organizations like the National Guard, US Navy and other responders https://www.washingtonpost.com/news/checkpoint/wp/2017/08/28...

There were even wings from New York and other states who went to Texas just to assist: http://newyork.cbslocal.com/2017/08/31/harvey-helicopter-res...

According to the first article, "We haven’t deployed this many people since World War I. So, this is literally the most we have deployed in 100 years."

It's impossible (or, at least, not anywhere near feasible) to plan for disasters on this scale, and there will probably always be a level of response from people who aren't professionals.

[maxerickson]

There's also the question of spending resources on mitigation instead of response.

Try to direct development to less vulnerable areas, require flood control planning ahead of building construction, stuff like that.