What usually happens to thunderstorm activity as it enters the dissipation phase?

During the dissipation phase of a thunderstorm, the overall activity typically diminishes. This is due to several factors:

1. The storm has used up the available moisture and energy that fueled its development. Without this supply, the mechanisms that sustain the thunderstorm begin to weaken.

2. Downdrafts associated with the storm become dominant, leading to decreased vertical development. As the downdrafts suppress any rising air essential for continued storm growth, the storm's intensity decreases.

3. The dissipating phase is characterized by a reduction in storm features such as lightning and thunder because the convective processes that generate these phenomena are no longer present or are significantly reduced.

Therefore, it is accurate to state that as a thunderstorm enters this phase, its activity naturally diminishes rather than strengthens, remains stable, or becomes more frequent.