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Author Question: The Enhanced Fujita scale A) classifies the greatest number of tornadoes as weak. B) has ten ... (Read 132 times)

bobbie

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on: Jul 14, 2018
The Enhanced Fujita scale
 
  A) classifies the greatest number of tornadoes as weak.
  B) has ten categories.
  C) includes F6 tornadoes, which occur only a few times a year.
  D) classifies tornadoes by the width of their spouts.

Question 2

Describe in detail the formation of a supercell tornado.
 
  What will be an ideal response?


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mcni194

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Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: In a supercell storm, the process begins with horizontal rotation of a large segment of the cloud. This rotation, called a mesocyclone, begins deep within the cloud interior, several kilometers above the surface. Under the right conditions, strong updrafts in the storm tilt the horizontally rotating air so that the axis of rotation becomes approximately vertical, providing the initial rotation within the cloud interior. Intensification of the mesocyclone requires that the area of rotation decrease, which leads to an increase in wind speed. Funnel clouds form when a narrow, rapidly rotating vortex emerges from the base of the wall cloud. As air is drawn upward into the zone of rotation, condensation and the importation of dust and debris from the surface may give the funnel a dark, ominous appearance. A funnel cloud has all the characteristics and intensity of a true tornado; the only difference between the two is that a funnel cloud has yet to touch the ground.


bobbie

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Reply 2 on: Jul 14, 2018
Excellent

blakcmamba

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Reply 3 on: Yesterday
Gracias!

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