It was one for the record books, a lightning flash that reached from eastern Texas to Kansas City. It happened back on Oct. 22, 2017. The World Meteorological Organization has now confirmed the 515-mile-long "megaflash" is a new world record for the longest lightning discharge.

A lightning flash tore across the sky above the Great Plains, stretching across a staggering 515 miles (829 kilometers) from eastern Texas to Kansas City. That “megaflash” shattered the previous record for longest lightning flash of 477 miles (768 kilometers), set in 2023.

A lighting flash that spanned from East Texas to an area near Kansas City in 2017 is officially the longest lightning strike ever measured, according to the World Meteorological Organization