Answer: Doppler radar
Doppler radar or weather radar is used to locate precipitation, forecast future intensity, calculate
or detecting its motion and estimates precipitation whether it is a rain, snow,
hail or storm. They are also helpful in determining the structure of storms and
its potential to cause severe weather.
Moreover, if a portion of the atmosphere becomes saturated with water vapor, it will condense and precipitate allowing Doppler radar to analyze and observe precipitation.