Last night, we were awakened by our weather radios squacking about thunderstorms.

Around 0030 (central time) we looked to the south, and the entire sky was lit up.

I used the Panasonic Lumix GX85 in video mode. It was running 50 frames per second, and many of the lightning flashes filled only one frame.

A video that contains this, and other captured stills.

Heavy Weather in South Dakota

This is a frame capture, cropped to square in GIMP.

Best to view on a black background.