Which stage of a thunderstorm is characterized by all updrafts and significant moisture transport?

The growing stage of a thunderstorm is primarily characterized by the presence of all updrafts and significant moisture transport. During this initial phase, warm, moist air rises rapidly into the atmosphere, creating strong updrafts. These updrafts are essential for the development of the storm, as they continuously supply moisture and energy to the system.

As the storm develops, the rising air cools adiabatically, and condensation occurs, leading to the formation of clouds and precipitation. The significance of moisture transport during this stage cannot be overstated, as it feeds the growth of the thunderstorm and helps in the organization of its structure. The continued building of the storm's vertical development can culminate in larger storm systems, often leading to the mature stage in subsequent phases.

In contrast, the mature stage features a balance of both updrafts and downdrafts, transitioning the storm into a more complex system with the potential for severe weather. The dying stage represents a phase where downdrafts dominate, leading to the dissipation of the thunderstorm, and the final stage is a non-standard term that may not clearly delineate a specific phase within thunderstorm development.