Contact: Rob Gutro
NASA/Goddard Space Flight Center
Caption: A red cross marks Fermi's position at the time it detected a TGF above Tropical Storm Julio on Aug. 4. Green dots show lightning locations from WWLN data 10 minutes before and after the TGF (magenta). Background: A GOES 15 image of Julio taken 19 minutes before the flash.
Credit: Image Credit: Michael Briggs/UA
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