"The main reason was the South Fork Fire last year that burned directly west of Ruidoso," Grzywacz said. "The soil wasn't able to absorb any of the rainfall, and it runs right down into Ruidoso. Normally, if you had that vegetation still there, it could absorb it. For the Ruidoso monsoon season, it was above average rain but not record rainfall."

A house with a turquoise door became a widely shared image of flooding in southern New Mexico when it was swept past a brewery that was designated a safe spot for anyone seeking higher ground.

The neighbouring state of Texas also experienced a major flood just a few days earlier, but with a very different outcome. The ferocity of the inundation in Texas caught forecasters and state officials by surprise, killing at least 119 people.

Surveillance camera footage, which was sped up, captured rising floodwaters filling up The Ruidoso Trading Post in New Mexico in a matter of minutes.