Question

CAVOK refers to the simultaneous occurrence of the following

meteorological conditions at an airport:
(a) no cloud below _____ feet, or below the highest minimum
sector altitude, whichever is higher, and no __;
(b) a visibility of _ SM or more;
(c) no _____________, _____________, shallow fog, or low
drifting snow.

Answer 1

CAVOK indicates weather conditions at an airport with no cloud below 5000 feet or the minimum sector altitude, a visibility of 6 SM or more, and an absence of precipitation, thunderstorms, and certain types of fog and snow.

Step-by-step explanation:

CAVOK, which stands for “Ceiling and Visibility Okay,” is a term used in aviation meteorology to describe specific weather conditions at an airport. To meet CAVOK criteria, the following conditions must be simultaneously present:

• No cloud below 5000 feet, or below the highest minimum sector altitude, whichever is higher, and no cumulonimbus (Cb) clouds;
• A visibility of 6 statute miles (SM) or more;
• No precipitation, thunderstorms, shallow fog, or low drifting snow.

This term is used to indicate that the weather is clear and not limiting visibility below thresholds that are considered necessary for safe aircraft operation.