How does radar help predict the weather?

Using microwave reflection to detect the atmosphere and predict the weather.

The weather radar emits pulsed radio waves into space through a highly directional antenna, and interacts with the atmosphere during the propagation. For example, the water vapor condensate in the atmosphere (clouds, fog, precipitation) scatters and absorbs radar waves; The depolarization caused by the scattering of circularly polarized waves by non-spherical particles, the uneven structure of air refractive index of radio waves and the scattering of incident waves by ionized media formed by lightning discharge stabilizes the partial reflection of incident waves by stratified atmosphere; And the Doppler effect of the motion of the scattering target in the scatterer on the incident wave.