On the dry and flat land, there are things like tornadoes, such as evaporated water vapor. What is a geographical phenomenon? draw

This is a small tornado. Don't doubt.

This is because the surface temperature in the desert rises very quickly during the day, resulting in a violent updraft, and the local small-scale ground pressure drops rapidly, forming a downward airflow around it, so convection occurs in the desert.

Of course, because there is almost no water vapor in the air in this convection system, there is no corresponding thunderstorm cloud system. But as long as this violent rising and falling airflow exists, the prototype of this tornado can be maintained, and gradually rely on the rising airflow to roll up lighter objects on the ground. If conditions permit, it can completely overcome the ground friction and rotate, and even develop into a large tornado sandstorm.

This kind of local convection in the desert is very common in China, Sahara desert, Arabia and Australia, but there is no precipitation and tornado in the corresponding cloud system. There are even videos of large tornadoes in the corresponding desert on the Internet. Even on Mars, where the arid environment is comparable, the most common weather activity is the dust of a big tornado sweeping across the world.