Sometimes our radars pick up more than precipitation. Check out - TopicsExpress



          

Sometimes our radars pick up more than precipitation. Check out this cool post from our Saint Louis Office!! Keen observers of our radar data probably noticed some fairly high returns moving south over southern Illinois and central Missouri. High differential reflectivity values as well as low correlation coefficient values indicate these are most likely biological targets. High differential reflectivity indicates these are oblate targets, and low correlation coefficient means the targets are changing shape. We think these targets are Monarch butterflies. A Monarch in flight would look oblate to the radar, and flapping wings would account for the changing shape! NWS St. Louis wishes good luck and a safe journey to these amazing little creatures on their long journey south! https://facebook/NWSStLouis
Posted on: Sat, 20 Sep 2014 00:04:55 +0000

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