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INRAT Instrument Rating · Question

When interpreting a TAF (Terminal Aerodrome Forecast), what does 'PROB30' indicate?

'PROB30' indicates a 30% probability of occurrence of the specified weather phenomenon, as outlined in the TAF decoding standards.

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Question: When interpreting a TAF (Terminal Aerodrome Forecast), what does 'PROB30' indicate?

Answer options: ✅ A 30% probability of occurrence.

  • A probability of 30 to 60%.
  • A probability less than 30%.
  • A conditional forecast with a 30% chance of improvement.

Correct answer: A 30% probability of occurrence.

Explanation: 'PROB30' indicates a 30% probability of occurrence of the specified weather phenomenon, as outlined in the TAF decoding standards.

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