GLM Flash Extent Density product seems to have poor detection from both GOES 16/17 in the high plains. Perhaps this is related to the greater viewing angle due to latitude and being farther on the periphery.  In this example, a very strong supercell was noted to have high total flash density values on ENTLN, while the GLM FED was very unimpressive. It was picking up on some flashes, but not enough to help the storm stand out from a lightning perspective. This could have negative impact on warning forecasters trying to use FED to identify stronger cells from a situational awareness perspective.

— warmbias —