Texas Hill Country, where much of the flooding took place this time, is often referred to as “flash flood alley.” It's home to steep terrain and a lack of vegetation that creates a perfect storm for waters to rise quickly.

The catastrophe was caused by a perfect storm of difficult-to-forecast rainfall and fast-moving water. Some wonder if budget cuts made things worse.

Here's what we know so far on the Texas flash floods, including where the flooding is happening, when storms could end and what could happen next.