ASU Now | June 26, 2020
Two new world records of lightning — the horizontal distance a bolt travels and the time duration of the flash — have been recorded by the World Meteorological Organization (WMO). The new records for "megaflashes," verified with new satellite lightning imagery technology, more than double the previous records measured in the U.S. and France, according to the WMO.
“This will provide valuable information for establishing limits to the scale of lightning — including megaflashes — for engineering, safety and scientific concerns,” said Randy Cerveny, an Arizona State University professor in the School of Geographical Sciences and Urban Planning and the “chief rapporteur” of weather and climate extremes for WMO.
“It is likely that even greater extremes exist, and that we will be able to observe them as lightning-detection technology improves,” Cerveny said.