Aviation English
Meteorology

What is prevailing visibility?

prevailing visibility Greatest visibility value equaled or exceeded for at least half the horizon.

Source: ICAO Doc 9432, FAA PCG

How is “prevailing visibility” Used in Practice?

What is the prevailing visibility reported at the field for our approach?

Certification Exam Relevance

ICAO Level 4ICAO Level 5ICAO Level 6EASA FCL.055

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related Aviation English Terms

visibilityrunway visual rangeOperating MinimumsRunway Visual Range Seventy-Five Metres

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Frequently Asked Questions

What is prevailing visibility?

Greatest visibility value equaled or exceeded for at least half the horizon.

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