NWS Indianapolis Doppler Radar Detects Cars on Highways

Due to atmospheric conditions, the Indianapolis Doppler Radar was detecting cars on area highways Monday night as the radar beam was ducted back toward the ground.  In the following image, the brighter colors in the white boxes along the mapped interstates indicate higher returned velocities, approximately those of groups of cars traveling at highway speeds.  For more information on this phenomenon, the history of Doppler Radar, its function, and other curiosities, click here for an article excerpted from a 2008 spotter newsletter.

IND 88D Detects Cars

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