According to cloud calculation rules, what is the result of "SCT + SCT"?

According to cloud calculation rules, what is the result of "SCT + SCT"?

• A. OVC
• B. BKN or OVC
• C. Clear
• D. BKN only

Answer: (B)

When considering cloud calculation rules, the term "SCT" refers to scattered clouds, which implies that clouds cover between 3/8 and 4/8 of the sky. When we combine the observations of two SCT clouds, the resulting coverage can lead to either broken (BKN) or overcast (OVC) conditions. If both SCT clouds are assessed separately, they may contribute to a smaller overall coverage. However, in the case where two observations are merged, it's possible for the cumulative cloud coverage to exceed the 4/8 fraction, resulting in a classification of either broken or overcast. BKN describes cloud coverage of between 5/8 and 7/8 of the sky, while OVC signifies total cloud cover (8/8). Therefore, combining two instances of SCT clouds can lead to scenarios where the cloud coverage is sufficiently high to warrant a classification of either BKN or OVC, making this answer correct based on the rules governing cloud calculations.

When considering cloud calculation rules, the term "SCT" refers to scattered clouds, which implies that clouds cover between 3/8 and 4/8 of the sky. When we combine the observations of two SCT clouds, the resulting coverage can lead to either broken (BKN) or overcast (OVC) conditions.

If both SCT clouds are assessed separately, they may contribute to a smaller overall coverage. However, in the case where two observations are merged, it's possible for the cumulative cloud coverage to exceed the 4/8 fraction, resulting in a classification of either broken or overcast. BKN describes cloud coverage of between 5/8 and 7/8 of the sky, while OVC signifies total cloud cover (8/8).

Therefore, combining two instances of SCT clouds can lead to scenarios where the cloud coverage is sufficiently high to warrant a classification of either BKN or OVC, making this answer correct based on the rules governing cloud calculations.