Please read to get a full understanding. IMPORTANT: Turn on Turbo Mode for the simulator to work at full speed. This weather radar simulator was programmed to, well, simulate a weather radar to a good extent under what's possible by Scratch. By default, it simulates a C-band radar (like most TV station-owned radars) complete with attenuation (or weakening) of the radar beam as it passes through heavier precipitation (and can be controlled by an attenuation amplifier), ground clutter and other radar goodness. The attenuation amplifier (AttAmp) can be adjusted when you head inside the code. To simulate an S-band radar (like a NEXRAD radar), set AttAmp to 0.1, for an X-band radar (like a research radar or Doppler On Wheels), set AttAmp to 10. Other settings of the radar, like the amount of bins (or pixels), spatial and temporal resolution (width and resolution of these bins) and overall range of the radar can be adjusted inside the code under the "ChangeRadarSettings" sprite. To change storms (or to add your own), or just to screw around in it, feel free to take a look inside the code.
Note that once I do gain access to cloud variables, I will rebuild this simulator so one instance of this simulator can be used to scan and another instance to display the data. Enjoy the sim!