Derecho affecting Pennsylvania and New Jersey
GOES-16 “Red” Visible (0.64 µm) images, with SPC Storm Reports plotted in red [click to play animation | MP4]
A sequence of GOES-16 Visible images – with and without an overlay of GLM Flash Extent Density – and “Clean” Infrared Window (10.35 µm) images (below) showed modest lightning activity and pulsing overshooting tops with cloud-top infrared brightness temperatures as cold as -75ºC (darker red enhancement).

GOES-16 “Red” Visible (0.64 µm) – with and without an overlay of GLM Flash Extent Density – and “Clean” Infrared Window (10.35 µm) images [click to play animation | MP4]