Doppler radar, using an electromagnetic pulse, detects the direction of wind and rain to help predict the path of tornadoes. UM's Frank Marsik explains how Doppler radars are used to warn people before tornado landfall to save lives.

About the Professor: Frank Marsik (http://aoss.engin.umich.edu/people/marsik) is an Associate Research Scientist in Atmospheric, Oceanic, and Space Sciences (http://aoss.engin.umich.edu/) at the University of Michigan College of Engineering (http://www.engin.umich.edu). His research interests include synoptic and boundary layer meteorology, weather forecasting and air quality.

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