What indicates a cloud cover classification of "broken" in METAR?

A cloud cover classification of "broken" in METAR observations is defined as 5 to 7 oktas. This classification indicates that approximately 50% to 87.5% of the sky is covered by clouds. In aviation and meteorological terminology, the use of oktas as a measure for cloud cover is standard, allowing pilots and meteorologists to communicate the extent of cloud coverage effectively.

Understanding the classification is important for pilots as it affects flight operations, especially in terms of visibility and potential weather-related issues. A "broken" cloud cover suggests a significant presence of clouds, which may influence the decision for maneuvering during takeoff and landing, as well as flight path planning.

The other classifications do not describe "broken" cloud cover accurately, with fewer oktas indicating either "few" (1 to 2 oktas) or "scattered" (3 to 4 oktas), while 8 oktas signifies "overcast," meaning complete cloud coverage with no breaks in the cloud layer. Thus, 5 to 7 oktas accurately captures the essence of "broken" clouds in a METAR report.