What does CAVOK signify in aviation weather reports?

CAVOK stands for "ceiling and visibility okay," a term used in aviation weather reports that indicates visibility of 10 km or more without significant weather phenomena. This means that the weather conditions are good for flying, with no substantial cloud cover or adverse weather conditions that would impact flight operations.

The term reflects important information for pilots and air traffic controllers, ensuring they have clarity regarding the conditions they will encounter. This includes the assurance that there are no significant weather events such as thunderstorm activity or fog, which could impact visibility or safety in flight operations. This accurate understanding of visibility and the absence of significant weather is crucial for aviation safety and operational planning.