äikesepilvedeks
Äikesepilvedeks, also known as cumulonimbus clouds, are dense, towering vertical clouds associated with thunderstorms and atmospheric instability. They are the most dramatic and powerful of cloud types, capable of producing heavy precipitation, lightning, thunder, hail, and even tornadoes. These clouds form when warm, moist air rises rapidly through the atmosphere, a process called convection. As the air ascends, it cools and condenses, forming water droplets and ice crystals. The strong updrafts within the cloud can carry these particles to very high altitudes, sometimes reaching the top of the troposphere.
The characteristic anvil shape of a mature cumulonimbus cloud forms when the rising air reaches the tropopause,