Practice question

In a METAR weather report, what conditions are required for the term 'CAVOK' (Ceiling and Visibility OK) to be reported?

  1. Visibility >= 10 km, no cloud below 5,000 ft or minimum sector altitude, no CB/TCU, and no significant weather
  2. Visibility >= 5 km, ceiling at 2,000 ft, no rain
  3. Clear skies with zero wind
  4. Visibility >= 8 km and no fog

Answer: A — Visibility >= 10 km, no cloud below 5,000 ft or minimum sector altitude, no CB/TCU, and no significant weather

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