weather radar, or weather surveillance radar (
WSR), is a type of radar used to locate precipitation,
calculate its motion, estimate its type (rain, snow, hail, etc.), and forecast its future position and intensity.
Modern weather radars are mostly pulse-Doppler radars, capable
of detecting the motion of rain droplets in addition to
intensity of the precipitation. Both types of data can be
analyzed to determine the structure of storms and their
potential to cause severe weather.