CAVOK

English

Alternative forms
  • CAVOk

Pronunciation
  • Hyphenation: kav‧oh‧kay [1]

Phrase

CAVOK

  1. (aviation) Acronym of ceiling (or clouds) and visibility [are] OK., a weather term, specific to an airport, used when conditions at the airport include visibility of at least 6 statute miles, no clouds below 5000 feet or minimum sector altitude (whichever is higher), and no hazardous weather conditions (cumulonimbus clouds, thunderstorms, precipitation, shallow fog, or low drifting snow) near the airport .

Usage notes
  • When appropriate, this term can be used in ATIS broadcasts in lieu of detailed weather information.
  • "CAVOK" may appear within METAR format weather report strings in place of the standard "Visibility Group (VVVVVSM)" as defined in Section 12.6.6 of the US "Federal Meteorological Handbook No. 1" (September 2005).

References
  1. Transport Canada (2023 March 23) “1.4: Use of Term “Ceiling and Visibility Ok (CAVOK)””, in Aeronautical Information Manual, RAC-Rules of the Air and Air Traffic Services: “The term “CAVOK” (KAV-OH-KAY) may be used in air- ground communications when transmitting meteorological information to arriving aircraft.”

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