Clouds and Visibility OK (CAVOK)

Clouds and Visibility OK (CAVOK)

What is Clouds and Visibility OK (CAVOK)?

Understanding CAVOK in Aviation Weather Reporting

Clouds and Visibility OK (CAVOK) is a term used in aviation meteorology to indicate good weather, excellent visibility, and no cloud cover affecting flight.

Clouds and Visibility OK (CAVOK) is a term used in aviation meteorology to indicate that there are no significant weather conditions affecting visibility, cloud cover, or other meteorological factors.

• Criteria: It generally means visibility is more than 10 kilometres, no cloud below 5,000 feet or minimum sector altitude, and no significant weather phenomena (like rain or snow).
• Use in Flight Planning: CAVOK is an important factor in flight planning and operations, indicating favourable weather conditions.
• Communication: It is commonly used in weather reports and briefings provided to pilots.

CAVOK is a positive weather descriptor in aviation, indicating ideal visibility and cloud cover conditions, thus impacting flight planning and operations.