What shape do radar beams take as a result of diffraction?

Radar beams exhibit a conical shape due to the phenomenon of diffraction. When radar waves are transmitted, they spread out as they propagate, especially around obstacles or through varying atmospheric conditions. This spreading behavior results in a cone-like divergence from the radar source.

The conical shape is significant because it affects how the radar interacts with precipitation and atmospheric phenomena. As the distance from the radar increases, the radar beam widens, allowing it to cover a larger area. This characteristic is crucial for accurately detecting and analyzing weather patterns, as it influences the radar's sensitivity and resolution.

Understanding the conical shape helps meteorologists interpret data effectively, especially concerning storm systems and potential severe weather events. This knowledge is fundamental in radar meteorology, as it aids in the accurate representation of weather conditions over wide areas.