https://www.sciencenews.org/article/longest-lightning-midwest-megaflash
A Midwest 'megaflash' is the longest lightning on record
Nov 19, 2025 - A reanalysis of satellite data shows that a 2017 Texas-to-Missouri lightning megaflash stretched 829 kilometers and lasted 7.39 seconds.
longest lightningmidwest
https://www.newscientist.com/article/2490525-longest-lightning-mega-flash-sets-a-shocking-new-record/
Longest lightning ‘mega-flash’ sets a shocking new record | New Scientist
A stroke of lighting that lasted more than 7 seconds and flashed across 829 kilometres is officially the longest ever recorded
longest lightningnew record