What does "BKN" indicate regarding cloud coverage in a METAR?

"BKN" is an abbreviation used in METAR reports to signify "Broken clouds." This term is used to describe cloud coverage where between 5/8 and 7/8 of the sky is covered by clouds. In meteorological terminology, "broken clouds" indicates that while a significant portion of the sky is obscured by cloud cover, there are still visible gaps allowing for some sunlight to penetrate. It is an important observation for pilots and meteorologists since it helps assess the weather conditions, especially for flight operations.

In contrast, "Cloudy skies" might imply a general overcast situation that doesn't specify the exact amount of sky obscured, while "Clear skies" would mean little to no cloud cover. "Overcast conditions" indicate a cloud coverage of 8/8, which does not align with the definition of broken clouds as represented by "BKN." Thus, "BKN" specifically indicates that some form of broken cloud cover exists, making it the accurate choice in this context.