The cloud type can form from air converging and rising vertically (clouds of vertical development), and is associated with heavy downpours of rain.

The cloud type that can form from air converging and rising vertically (clouds of vertical development), and is associated with heavy downpours of rain is t he Cumulonimbus. It is a dense towering vertical cloud characterized with thunderstorms and atmospheric instability, heavy rain, snow, hail, lightning and even tornadoes.