Michael Briggs, Assistant Director and Principal Research Scientist IV, has been featured on Goddard Space Flight Center (GSFC) about Tropical Storm Julio (now Hurricane). Briggs provided a figure of a Terrestrial Gamma-ray Flash (TGF) from Tropical Storm Julio on August 4, 2014 and details of the TGF.
The figure has received publicity and is featured in other media articles. The original story is at http://www.nasa.gov/content/goddard/julio/, under August 7th. The other links include: http://phys.org/news/2014-08-nasa-hurricane-julio-emit-gamma-ray.html,