How does precipitation generally affect RADAR performance?

Precipitation can significantly impact RADAR performance, particularly in terms of signal attenuation. When RADAR waves encounter precipitation such as rain, snow, or hail, the moisture in these forms can absorb and scatter the RADAR signals. This phenomenon leads to a reduction in the effective range of the RADAR system, as the scattered signals may not return to the receiver or may return with diminished strength, making it difficult to detect objects accurately.

In cases of heavy precipitation, the attenuation can be substantial, which is why the performance of a RADAR system can be compromised under such conditions. Detecting and tracking targets becomes more challenging, necessitating careful consideration of weather conditions when interpreting RADAR data.

While precipitation might enhance certain aspects of signal clarity in specific scenarios, such as improving contrast in some visual displays, its overall impact on RADAR performance is primarily negative due to signal loss, making reduced detection range the correct characterization of precipitation's effect on RADAR systems.