Weather radar. Doppler radar dome (model WSR-88D) for weather forecasting. This technology allows forecasters to understand changes in the weather and to predict what will happen in the near future. Radio waves emitted from an antenna are scattered or reflected from atmospheric phenomena such as rain drops, snow crystals or hail pellets. The returning radio waves are received by the geodesic dome and are converted electronically into pictures showing the location and movement of weather systems. The direction and speed of wind can be derived from changes in frequency of the radio waves. Photographed at the National Weather Service in Wichita, Kansas, USA.