Video: The phenomenon of sand creaking between the calm wind in America

A resident recorded sand columns rising and moving far in Quapaw, Oklahoma.

Sandstorm formed by a hot air area around it rising high, forming a gas column facing upwards.(Illustration).

The image of the sand column rising up looks like a sand lot , also called a sand demon , recorded by a resident in Quapaw, Oklahoma, USA, Viral Hog reported on November 7. This person said, the video filmed in the afternoon and it was completely windless, the trees behind did not move.

"As far as I know, sand bars often appear when the weather is warmer, but it is not sure. If it is really a sand block, I have never seen it happen under such conditions. I don't know exactly. What is the cause of this inexplicable phenomenon, 'the cameraman said.

Sandstorm formed by a hot air area rising high, forming an air column upwards, usually from 3 - 30m wide with an average height of nearly 200m, according to the American Meteorological Association (AMS). Sand bars are usually not dangerous, but there are also cases of large sand whirlwinds that cause some damage to humans.