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.

Guinness World Records may be the go-to organization for measuring the extent of (sometimes dubious) human achievement, but for natural phenomena, the World Meteorological Organization’s (WMO’s) Committee on Weather and Climate Extremes sets the bar.

"This new record clearly demonstrates the incredible power of the natural environment," professor Randall Cerveny said.