Practice question

Where is Clear Air Turbulence (CAT) most commonly encountered in relation to a jet stream?

  1. On the cold (polar) side of the jet stream core, near the tropopause.
  2. Directly in the center of the jet stream core, where wind speed is highest.
  3. On the warm (equatorward) side of the jet stream, at low altitudes below 10,000 feet.
  4. Directly below the cumulonimbus clouds associated with the subtropical jet.

Answer: A — On the cold (polar) side of the jet stream core, near the tropopause.

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