Which of the following best defines light radar reflectivity?

Light radar reflectivity refers to the weak signal returned from precipitation detected by radar. This typically indicates minimal precipitation, such as light rain or drizzle, which generally has little to no impact on visibility. When the radar shows light reflectivity, it suggests that the weather conditions should remain relatively benign, allowing for normal visibility for pilots and ground operations.

In contrast, moderate and strong precipitation would present higher levels of radar reflectivity, indicating more significant weather conditions that could affect visibility and safety. Heavy snowfall would also show a different radar signature with greater reflectivity, which aligns with potential low visibility scenarios. Thus, the definition of light radar reflectivity accurately captures the essence of minimal precipitation without impairing visibility, making it the correct choice in this context.