IFS Stage II Gouge Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

The lifting force needed for thunderstorm development is primarily determined by temperature and pressure differences in the atmosphere. This is because thunderstorms typically form when warm, moist air at the surface rises and interacts with cooler, drier air aloft.

As the warm air rises, it expands and cools, and if the cooling is sufficient, it can lead to condensation and the formation of clouds. This process generates thunderstorms, especially when there is significant instability in the atmosphere, which is often driven by differences in temperature and pressure. The greater the difference between the warm and cool air, the stronger the lifting force, which can lead to more intense thunderstorm activity.

Stable atmospheric conditions, such as those found in a temperature inversion, would inhibit the necessary upward motion and thus not support thunderstorm development. Human intervention typically does not influence natural thunderstorm formation directly, and while wind direction can play a role in the movement of storms and moisture availability, it is not a primary factor in generating the lifting force itself. Hence, temperature and pressure differences are the key factors in creating the necessary conditions for the rise of air that leads to thunderstorms.