What atmospheric condition is associated with good visibility?

Good visibility is typically associated with cumulus clouds, which are often a sign of fair weather. These clouds form when warm, moist air rises and cools, creating puffy white clouds with a flat base and are generally not associated with significant precipitation or adverse weather conditions. When cumulus clouds are present, it indicates that the atmosphere is relatively stable, allowing for clearer skies and better visibility.

In contrast, fog significantly reduces visibility by lifting moisture from the ground, while heavy rain and thunderstorms produce dense clouds and precipitation that obscure sight. These conditions create hazardous environments for activities like flying or driving due to poor visibility and potential danger. Hence, when seeking conditions favorable for visibility, cumulus clouds serve as an indicator of clearer weather patterns.