US lightning bolt stretching across 3 states sets world record for longest flash
Satellite technology aided in establishing two new world records for megaflashes of lightning in notorious hotspots in North and South America
Meteorologist on how megaflash lightning occurs
Meteorologist Chris Vagasky weighs in on the bolt of lightning that stretched across 3 states.
A bolt of lightning nearly 500 miles long that stretched across three states has set a new world record for the longest flash.
Satellite technology aided the World Meteorological Organization in establishing two new world records Monday for megaflashes of lightning in notorious hotspots in North and South America.
(FOX Weather)
The longest single flash was recorded across parts of Texas, Louisiana and Mississippi and covered a horizontal distance of 477.2 miles on April 29, 2020. The previous record was 440.6 miles wide across parts of southern Brazil on Oct. 31, 2018.
Longest lightning flash on record confirmed by meteorologists
Satellite images captured by the National Oceanic and Atmospheric Administration show a storm that brought a flash of lightning that spanned Texas, Louisiana and Mississippi on April 29, 2020. The World Meteorological Organization claims the 477.2-mile-long flash broke the previous record for longest detected ‘megaflash.’
"Lightning is a major hazard that claims many lives every year. The findings highlight important public lightning safety concerns for electrified clouds where flashes can travel extremely large distances," WMO Secretary-General Professor Petteri Taalas said.
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Another single bolt of lightning on June 18, 2020, lasted 17.1 seconds over Uruguay and northern Argentina. It broke the previous 2019 record of 16.7 seconds for the greatest duration for a single lightning flash.
(FOX Weather)
"These are extraordinary records from single lightning flash events. Environmental extremes are living measurements of the power of nature, as well as scientific progress in being able to make such assessments. It is likely that even greater extremes still exist, and that we will be able to observe them as lightning detection technology improves," said Randall Cerveny, a professor at Arizona State University and also the chief of records confirmation for WMO.
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According to the meteorological organization, these extremely large and long-duration lightning events were not isolated but happened during active thunderstorms.
In 2021, there was a considerable increase in the number of lightning strikes in the United States according to a report by lightning research firm Vaisala.
Their national and global lightning detection system measured just over 194 million lightning strikes in the U.S. this past year -- 24 million more strikes than were recorded in 2020.