You've got to love journalists: https://www.cnn.com/2019/09/08/us/washington-state-lightning-strikes/index.html "Lightning occurs when ice particles within a cloud interact with each other through collision, causing the particles to fracture and break apart, according to NASA. The intense heat of the lightning generates a sound called thunder that is transmitted through the air at the speed of sound, it added." And the NASA web page referenced in the article: https://ghrc.nsstc.nasa.gov/home/micro-articles/lightning Not much similarity...