Weather radar is a technology used to detect precipitation, such as rain, snow, or hail, in the atmosphere. It works by sending out radio waves that bounce off water droplets or ice particles. The radar then measures the time it takes for the waves to return, allowing meteorologists to determine the location, intensity, and movement of storms. This information is crucial for forecasting weather and issuing warnings for severe conditions. Weather radar helps improve public safety by providing timely updates on approaching storms, enabling people to prepare for potential hazards like flooding or strong winds.