Doppler Radar

Doppler Radar is something that I find useful in everyday life. I am deathly afraid of thunderstorms and tornados (having been in a tornado when I was 12), so anytime the sky looks even hintingly dark, I turn on the National Weather Center doppler radar. Doppler radar shows the amount of precipitation in any given area. It is also used to predict tornados and hail using the circulation of rain and cloud coverage. This map shows a very bad thunderstorm in Texas in 1997, that actually produced numerous tornados. I found this map at http://www.srh.noaa.gov/images/lub/events/2007/20070417_hailandtornadoes/radar_srm_slaton.jpg