Originally Posted By: Blacktop
This is an unprecedented event. While there are certain areas here that have flooded before during extreme rainfall events and can be expected to flood every time we get lots of rain in a short period of time, this time there are areas flooding that have never flooded before.

Unprecedented but not unanticipated. The vulnerability of the region to catastrophic flooding has been well documented many times for many years. See for example Boomtown, Flood Town. Also see Hell and High Water. And Is Texas Ready for Hurricane Harvey?.
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"Toto, I've a feeling we're not in Kansas any more."
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