ATSC Weather for Sailing, Flying & Snow Sports (113) – Sailing Module Practice Test 2026 - Free Sailing Weather Practice Questions and Study Guide

The choice that states the square contains closed cell convective clouds is correct because these clouds typically form in a distinct pattern characterized by their tightly packed structure, which can be associated with a specific type of atmospheric instability. Closed cell convection occurs when rising warm air cools and condenses, resulting in cloud formation with well-defined, circular shapes that cluster together.

In general, closed cell convective clouds are associated with lower sea surface temperatures and often appear in a more organized structure, creating a specific environment that favors their formation. This characteristic differentiates them from other cloud formations that may appear under different conditions and arrangements, such as open cell convection, which typically has a more dispersed or irregular appearance.

Understanding these distinctions is crucial for interpreting weather patterns and conditions, especially in the contexts of sailing, flying, and snow sports, where varying cloud types can significantly affect visibility and safety.