The unexpected airflow changes during heavy rainstorms pose risks to workers in underground facilities who rely on stable ventilation for safety. Reversed or weakened airflow could compromise air quality and emergency response systems. Additionally, the phenomenon could impact operations in other underground environments, such as mines or sewer systems, where water inflows are common. Understanding this interaction is crucial for preventing hazards during extreme weather or emergencies, such as fires, where water is used to control conditions. The findings provide a framework for predicting and mitigating these risks effectively.