What does the METAR remark "SN2SC6" indicate about cloud cover?

The METAR remark "SN2SC6" provides specific information regarding cloud cover, which is essential for pilots to assess weather conditions. In this notation, "SN" stands for "Stratus Nimbus," indicating a cloud type that is primarily associated with low-level overcast conditions, often leading to precipitation. The "2" represents the amount of cloud cover visible, measured in oktas, which signifies that there are 2 oktas of this cloud type present. Following that, "SC" denotes "Stratus Cu," indicating a presence of Stratus clouds that typically form in lower altitudes, often indicating stable atmospheric conditions.

The "6" signifies that there are also 6 oktas of Cumulus clouds, which can vary in appearance from small, puffy clouds to larger, more pronounced formations depending on atmospheric instability. This combination of cloud cover indicates a mix of cloud types, with Stratus Nimbus being significant in height and the Cumulus contributing to the overall cloud cover.

This understanding helps pilots evaluate potential flying conditions such as ceiling, visibility, and weather phenomena associated with low-level clouds and predict how these might evolve during flight. Other options do not reflect the meaningful interpretation of the METAR remark, as they incorrectly assign cloud