What is radar primarily used to detect in aviation?

Radar is primarily used in aviation to detect precipitation. It operates by sending out radio waves that bounce off precipitation particles, such as rain or snow. This enables pilots and air traffic controllers to visualize weather patterns that can impact flight safety, including thunderstorms, rain showers, and other forms of precipitation.

By interpreting radar data, meteorologists and aviation personnel can assess the intensity and movement of precipitation, allowing for better decision-making regarding route adjustments and flight safety. Unlike the other options, which involve environmental conditions but do not primarily rely on radar technology for detection, precipitation specifically is well-suited for radar monitoring, making it a critical tool in weather aviation management.