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Which severe local phenomenon results from that amplification?

  • A.A tornado, which forms where the rotating updraught of a supercell storm is stretched towards the surface
  • B.A microburst
  • C.A squall line, which is an organised line of convective cells advancing ahead of an approaching cold front
  • D.A downslope windstorm

Answer: D

Downslope windstorms with gusts exceeding 50 metres per second occur on the lee slopes of major ranges when the wave response is amplified and breaks, and they cause substantial damage in places such as Boulder and the Alpine valleys. Tornadoes, microbursts and squall lines are all convective phenomena with quite different dynamics.

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