
The World Meteorological Organization (WMO) certified a new record for the longest lightning strike ever documented, measuring 829 kilometers, using data collected during a thunderstorm in October 2017. This extraordinary megaflash spanned from East Texas to near Kansas City, Missouri. The previous record, set in 2020, was 768 kilometers, meaning the new measurement surpasses it by 61 kilometers.
The development is important not just for meteorological records but also for the technological advancements enabling these measurements. Geostationary satellites, such as NOAA's GOES-16, are pivotal in continuously monitoring atmospheric events to detect such megaflashes. These tools represent considerable advancement over past technology, allowing scientists to document lightning with unprecedented accuracy and precision.