{"id":15459,"date":"2020-06-25T22:38:00","date_gmt":"2020-06-25T19:38:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/700-km-brazil-megaflash-sets-lightning-record-un\/"},"modified":"2020-06-25T22:38:00","modified_gmt":"2020-06-25T19:38:00","slug":"700-km-brazil-megaflash-sets-lightning-record-un","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/700-km-brazil-megaflash-sets-lightning-record-un\/","title":{"rendered":"#700-km Brazil ‘megaflash’ sets lightning record: UN"},"content":{"rendered":"

“#700-km Brazil ‘megaflash’ sets lightning record: UN<\/strong>”<\/p>\n

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\"The<\/img>
\n The UN weather agency measures lightning using satellite imagery technology<\/a>
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The UN’s weather agency announced Thursday the longest lightning bolt on record\u2014a single flash in Brazil on October 31, 2018 that cut the sky across more than 700 kilometers.<\/p>\n

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That is equivalent to the distance between Boston and Washington DC in the United States, or between London and Basel, Switzerland, the World Meteorological Organization said in a statement.<\/p>\n

WMO’s committee of experts on weather and climate extremes also reported a new world record for the duration of a lightning flash, with a single flash that developed continuously over northern Argentina on March 4, 2019 lasting for a full 16.73 seconds.
\nThe new “megaflash” records, which were verified with new satellite lightning imagery technology, were more than double the previous known record-holders, WMO said.
\nThe previous record for the longest detected distance for a single lightning flash was 321 kilometers (199 miles), measured on June 20, 2007 in the US state of Oklahoma, WMO said.
\nThe previous duration record was 7.74 seconds, measured on August 30, 2012 in southern France, it said.
\n‘Extraordinary records’<\/b>
\nThe new measurements reveal “extraordinary records from single lightning flash events,” Randall Cerveny, the chief rapp<\/a>orteur in the WMO expert committee, said in the statement.
\n“It is likely that even greater extremes still exist, and that we will be able to observe them as lightning detection technology improves,” he said.
\nThe previous records were assessed using data collected by ground-based so-called lightning mapping array networks, which many lightning scientists acknowledge face upper limits in the scale of lightning that can be observed, WMO said.
\nIt hailed recent advances in space-based lightning mapping that allow for measuring “flash extent and duration continuously over broad geo-spatial domains.”
\nThis has allowed for the detection of “previously unobserved extremes in lightning occurrence, known as ‘megaflashes’,” Michael J. Peterson, of the Space and Remote Sensing Group of Los Alamos National Laboratory in the US, said in the statement.
\nMegaflashes, he said, “are defined as horizontal mesoscale lightning discharges that reach hundreds of kilometers in length.”
\nThe UN agency occasionally reveals quirky weather-related milestones, like in 2016 revealing a record wave measurement of a behemoth that towered 19 meters (62.3 feet)\u2014taller than a six-storey building\u2014above the North Atlantic.
\nAll such records are stored in the WMO Archive of Weather and Climate Extremes.
\nThe archive currently includes two other lightning-related extremes.
\nOne is for the most people killed by a single direct strike of lightning, when 21 people died in Zimbabwe in 1975 as they huddled for safety in a hut that was hit.
\nThe other is for an indirect strike, when 469 people died in Dronka, Egypt when lightning struck a set of oil tanks in 1994, causing burning oil to flood the town.<\/p>\n

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\n \u00a9 2020 AFP<\/p>\n

\n Citation<\/strong>:
\n 700-km Brazil ‘megaflash’ sets lightning record: UN (2020, June 25)
\n retrieved 25 June 2020
\n from https:\/\/phys.org\/news<\/a>\/2020-06-km-brazil-megaflash-lightning.html<\/p>\n

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“#700-km Brazil ‘megaflash’ sets lightning record: UN” The UN weather agency measures lightning using satellite imagery technology The UN’s weather agency announced Thursday the longest lightning bolt on record\u2014a single flash in Brazil on October 31, 2018 that cut the sky across more than 700 kilometers. That is equivalent to the distance between Boston and…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[27807,10681],"class_list":["post-15459","post","type-post","status-publish","format-standard","hentry","category-sciencee","tag-700-km-brazil-megaflash-sets-lightning-record-un","tag-earth-sciences-environment"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/15459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=15459"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/15459\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=15459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=15459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=15459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}