NOTE: It is recommended that the reader read all previous chapters before reading this one.

The mass of a hurricane will contract space in the directions at both its periphery, as well as its inner core. The same applies to weak low pressure systems, such as tornado breeding grounds, because these are also extended masses.

We know that huge low pressure systems, such as hurricanes, twist weaker low pressure systems around themselves, strengthening the hurricane. This is a unification process that works exactly the same way when it comes to much weaker low pressure systems.

Small weak low pressure systems will unite with each other, but the aforementioned effect complicates the process. The unification is only possible if a small low pressure system twists itself around a greater one.

The illustration shows two low pressure systems colliding together.

[L1] is a little smaller than [L2] and is therefore attracted to [L2].

Many small low pressure systems, like heavy clouds, will aggregate. As this occurs weak winds will begin to form. Rising winds inside weak low pressure systems will slowly begin to rotate and rise similarly to winds in large low pressure systems.

It is the combination between slowly upwards rising winds and strong winds at higher altitudes that dramatically begin to speed up the naturally rotating process of small low pressure system collisions. This is the birth of a tornado. Such a process can start a series of weak low pressure system collisions. This can transpire very quickly.

Let’s consider what happens at higher altitudes.

A high wind speed is a necessary condition to allow rising wind to escape quickly.

It is the vertically upwards rotating air, which in higher altitudes, by virtue of high wind speeds, is pushed into a horizontal position, which preserves its rotation. 

The basic cause of the vortex (horizontally rotating air in higher altitude) is therefore not the cause of a tornado but the result of vertically rotating air pushed being forced into a horizontal position. The overturned, horizontally rotating airstreams reinforce the already rotating air in the horizontal upper altitudes, but this itself is not enough to start a tornado.

What happens in addition is, the upwards moving air from a tornado contributes to the upper air stream.  The upper air stream delivers wind for the distant high pressure.  This stream has a different "requirement" day by day with regard to how fast the wind, which is delivered, must be moving. When the requirement one day is huge, the upward weak rotating winds from a potential tornado area can be a very "welcome guest" to enter into the upper airstreams, and be nearly sucked upwards by the strong "delivery requirement" in the upper flowing air stream.

A tornado is therefore a combination of more than one factor. This new theory implies that a better understanding of the force of gravity could be important for also better understanding of how and why small low pressure systems really act when air is moving upwards or when low pressures collides, - that is the point of this theory.