I played a bit with Audacity six years ago and added reverb, delay, and echo effects to a recording I made off WebSDR of UVB-76 "The Buzzer," and then added thunderstorm effects to the middle, back, and LFE channels. I'll post a link to the FLAC file below.

PS: I recommend watching this video either in Dolby Headphone mode, or in Pro-Logic II/x/fx mode.

FLAC file: https://www.mediafire.com/file/8kkb1qlv5sg3wgk/UVB-76_stormy.flac/file