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Which limitation does damage based rating have?

  • A.A tornado over open country cannot be rated highly
  • B.The scale cannot be applied at all to any tornado that occurs during the hours of darkness in the region
  • C.It requires radar data
  • D.The rating depends upon the duration of the event rather than upon the maximum intensity that it attained

Answer: A

Because the rating is inferred from damage to structures, a violent tornado crossing empty farmland has nothing to damage and is rated low. This biases the climatology towards populated areas. Mobile radar measurements have recorded winds well above the EF5 threshold in tornadoes rated lower from damage alone.

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