Answer:
Here is a diagram and description of how convectional rainfall is formed:
Convectional rainfall is formed by the upward movement of warm, moist air, which cools and condenses into clouds. As the air rises, it cools due to the decrease in pressure at higher altitudes. The water vapor in the air then condenses into water droplets, forming cumulus clouds. These clouds continue to grow as more warm, moist air rises and cools.
Eventually, the water droplets in the clouds become large enough to fall to the ground as precipitation. This process is called precipitation initiation. The precipitation falls through the cooler air below the cloud, which can cause it to cool further and create downdrafts of cool air. These downdrafts can create gusty winds and thunderstorms.
Here is a diagram of the process:
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Warm, moist air rises
and cools,
forming cumulus clouds
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Precipitation
falls to the ground
In the diagram, the warm, moist air is shown rising and cooling to form cumulus clouds. The precipitation falls from the clouds and reaches the ground. This process can cause gusty winds and thunderstorms, as indicated by the arrows representing downdrafts.