More about NEXRAD - the Doppler Weather Radar detecting present rainfall

Part of the information shown by the Weather Radar Module are NEXRAD weather radar echo graphics. Here you can find more information about the radar technology and meaning of the colors in the radar overlays:

• http://www.srh.noaa.gov/srh/jetstream/doppler/baserefl.htm#rainrate
• http://www.srh.noaa.gov/srh/jetstream/doppler/radarfaq.htm#RF