The World Meteorological Organization announced two
new lightning records.
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.
The two announcements
mark the first time that lightning has been included in the official WMO World
Weather & Climate Extremes Archive, whichdocuments records for heat, cold,
wind speed, rainfall and other climate events. "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."
http://www.livescience.com/56134-world-record-longest-lightning-bolt.html
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