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For the most part a tornado is actually an updraft as it is connected with the rotating updraft of its parent thunderstorm. However there are two downdrafts that are related to tornadoes. The first is the rear-flank downdraft of a thunderstorm. This downdraft is induced by rain and wraps around the rotating updraft of a supercell thunderstorm. This is believed to tighten and intensify the mesocyclone to produce a tornado.
Another, less common downdraft occurs when a tornado undergoes something called vortex breakdown. The center of a tornado has low pressure, which draws air inward and upward, but in a very intense tornado the air is spinning so fast that it cannot reach the center so the low pressure draws air downward, forming a downdraft in the center of the tornado. This is a similar mechanism to what produced they eye of a hurricane.
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What does circular pattern of updrafts and downdrafts mean?
A circular pattern of updrafts and downdrafts typically refers to a weather phenomenon known as a mesocyclone or rotating updraft within a severe thunderstorm. This pattern is often associated with the development of tornadoes within the storm. The updrafts feed energy and moisture into the storm, while the downdrafts represent descending air and precipitation.
What does precipitation have to do with tornadoes?
Precipitation is a key factor in the formation of tornadoes. Tornadoes often form within thunderstorms, where strong updrafts and downdrafts can lead to the development of a rotating column of air. The presence of precipitation can add instability to the atmosphere, enhancing the conditions necessary for tornado formation.
How are tornadoes and lightning alike?
Tornadoes and lightning are both forms of severe weather phenomena associated with thunderstorms. They can both cause significant damage and threat to life. Additionally, both tornadoes and lightning are generated by powerful updrafts and downdrafts within a thunderstorm.
Is there lightning in tornadoes?
Yes, lightning can occur in tornadoes, although it is not as common as in regular thunderstorms. The intense updrafts and downdrafts within a tornado can create the necessary conditions for lightning to form.
How do tornadoes come down to the ground?
Tornadoes form when warm, moist air at the surface rises and meets cooler, drier air aloft. This creates spinning columns of air called mesocyclones, which can then be funneled downward to the ground by surrounding updrafts and downdrafts within a thunderstorm.
