What does the abbreviation "CAVOK" mean in TAF language?

The abbreviation "CAVOK" stands for "Ceiling And Visibility OK," which is a term used in aviation weather reporting, particularly in METAR and TAF formats. When CAVOK is reported, it indicates that the visibility is at least 10 kilometers, and there are no significant weather phenomena affecting visibility. Additionally, it suggests that there are no clouds below 5,000 feet or below the minimum sector altitude, and there are no significant weather elements such as precipitation or thunderstorms present.

This term is especially important for pilots and air traffic controllers, as it provides a clear and concise indication of good weather conditions that could support safe flight operations. The use of CAVOK simplifies weather reporting by conveying a specific set of favorable conditions without requiring extensive details. Other options do not accurately represent aviation terminology, as they refer to concepts or phrases that are not standard in meteorological contexts.