Shocking News: World's Longest Lightning Bolt Was Nearly 200 Miles

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The World Meteorological Organization announced two new lightning records. (Image credit: John Getchel/Flickr)

When the world's longest lightning bolt struck over Oklahoma in 2007, it traveled about three-quarters of the length of the state, according to the World Meteorological Organization, which recently announced the electrifying new record.

The lightning bolt traveled 199.5 miles (321 kilometers) on June 20, 2007, the World Meteorological Organization (WMO) said. The organization also confirmed the longest duration for a single flash of lightning: 7.74 seconds, for a flash that occurred over Provence-Alpes-Côte d’Azur, France, on Aug. 30, 2012.

"Lightning is a major weather hazard that claims many lives each year," WMO Secretary-General Petteri Taalas said in a statement. "Improvements in detecting and monitoring these extreme events will help us improve public safety."

The WMO said the advancement of lightning-sensing technologies made it possible to detect new extremes and allowed the organization to now include lightning measurements in the archive. Randall Cerveny, chief rapporteur of climate and weather extremes for WMO, said experts can now study specific lightning flashes in much greater detail.

Lightning strikes about 25 million times a year in the U.S., annually killing an average of 49 people and injuring hundreds more, according to the National Weather Service. So far this year, lightning has killed 35 people in the U.S., which makes 2016 the deadliest year for lightning since 2007, which had 45 lightning-related fatalities. Improved sensing technologies in recent years have allowed for better warning systems and safety protocols, according to the WMO.

"The end result reinforces critical safety information regarding lightning, specifically that lightning flashes can travel huge distances from their parent thunderstorms," Cerveny said. "Our experts' best advice: When thunder roars, go indoors."

The WMO's full assessment of the record-breaking bolts was published online Sept. 15 in the Bulletin of the American Meteorological Society journal.

Original article on Live Science.

Kacey Deamer
Kacey Deamer
Staff Writer
Kacey Deamer is a journalist for Live Science, covering planet earth and innovation. She has previously reported for Mother Jones, the Reporter's Committee for Freedom of the Press, Neon Tommy and more. After completing her undergraduate degree in journalism and environmental studies at Ithaca College, Kacey pursued her master's in Specialized Journalism: Climate Change at USC Annenberg. Follow Kacey on Twitter.