How Do Tornadoes Form?

Many thunderstorms occur in nature and a thunderstorm that causes the most damage is the tornado. And it has been a wonder for many how tornadoes form. There are some causes for the formation of these tornadoes, or any kind of thunderstorm. It is noted that whenever there is a collision of a huge volume of air. It so happens that warm air and cold air may be present together. That the warm air is below and the cod air above. This warm air will try to rise up and a low pressure area may build up and this may lead to the formation of the tornado when the updraft of air is large. The tornadoes occur only in certain places and not in all places because they occur only when a certain climatic condition is attained.

A sudden change in the direction of wind has been observed prior to the formation of a tornado. When it is being developed the speed of wind increases and this high speed wind starts rising upwards. This may cause a horizontal spinning effect in the lower atmosphere area. Later this change in direction and the effect is seen to be formed in the vertical direction. Now at this stage as the thunderstorm that is being formed starts its upward vertical journey the circumference grows and it may become very large and range anything between two to six miles.

A rotating wall cloud or a lower cloud base is said to be formed in the area of wind direction. This slowly expands and becomes into a tornado. Many other natural phenomena like hailstorms, blowing of strong winds in one direction may also occur along with the formation of a tornado but not always.

The tornadoes can be classified into three categories based on the factors of their formation like weak, strong and violent tornadoes. The factors that affect their formation and impact may vary and depend on wind speed, lifetime and reports about tornado deaths. A detailed study also shows that most of the tornadoes are weak and nearly half of them are strong and only a small percentage of them are violent in nature.

It has now come to the notice after a long observation that rain does not occur in the area of the tornadoes but there may be heavy to moderate rainfall in the background. Thus this is a brief account of how tornadoes seem to form.





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