![]() ![]() Cerveny says as additional countries begin adopting weather satellite technology, scientists will have access to larger databases. We see them primarily in the midwestern and southern states, and down in South America in the Pampas region of Argentina.” “Right now, we think there are a couple of prime locations for these kinds of lightning events. Megaflashes tend to occur in lightning hotspots, such as the Great Plains in North America, and the La Plata basin in South America. These temperature dynamics allow remarkable atmospheric extremes to develop. Although such storms can happen anywhere in the world, they are much more common over large landmasses close to the equator. The new record strikes occurred in Mesoscale Convective System (MCS) thunderstorm hotspots. Massive thunderstorms do not guarantee that megaflashes will occur, which is what makes these phenomena so rare. Cerveny says that the new records are not caused by climate change. Scientists are still researching what causes these monster storms. ![]() “They are luckily very rare, but they do occur.” Randall Cerveny, rapporteur of Weather and Climate Extremes for WMO. “These are lightning flashes that travel for hundreds of miles and can last for many seconds, said Dr. When the conditions are just right, powerful lightning can strike in a flash-quite literally. These types of thunderstorms are heat-based and are not associated with the weather fronts commonly occurring during the spring. Megaflashes are a result of incredibly intense thunderstorms, called conductive thunderstorms. Meanwhile, a megaflash lasting just under 17 seconds over neighbouring Argentina held the record for the longest duration. Prior to the two new records, a megaflash over Brazil held the record for the longest flash by distance, spanning just over 709 kilometres (441 miles). This type of lightning does not strike the ground, instead travelling from one cloud to another. Cloud-to-cloud lightning happens when a negatively charged cloud attracts a positively charged cloud. Longest distance of 768 km (477.2 miles) across southern #USA imagery of US megaflash highlights advances in #satellites and detection technology /RazD75gqNM- World Meteorological Organization February 1, 2022īoth events were considered cloud-to-cloud lightning flashes, lighting up the sky thousands of feet above the ground. ![]() Greatest duration of 17.1 seconds over #Uruguay and #Argentina WMO has verified 2 new world records for a ⚡️⚡️ #megaflash The flash lasted 17 seconds, breaking the record for the longest lasting lightning flash. This incredible length is equivalent to the distance between New York City and Columbus, Ohio.įollowing April’s record-breaking bolt event, another lightning megaflash ripped through the skies of Uruguay and northern Argentina during a thunderstorm on 18 June 2020. ![]() On 7 February 2022, the World Meteorological Organization announced that a single bolt on 29 April 2020 stretched over 767 kilometres (477 miles) across Texas, Louisiana, and Mississippi. Two massive lightning bolts recently broke shocking new records.Ī bolt stretching nearly 800 kilometres (500 miles) across three states now holds the record for the longest lightning flash. ![]()
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