Convectional refers to a process of heat transfer that occurs in fluids, such as liquids and gases. In this process, warmer, less dense areas of the fluid rise, while cooler, denser areas sink. This movement creates a circulation pattern that helps distribute heat throughout the fluid. In meteorology, convectional currents can lead to the formation of clouds and precipitation. For example, when the sun heats the ground, the air above it warms up and rises, potentially leading to the development of cumulus clouds and thunderstorms in certain conditions.