On May 18, 2017, incredible lightning blazed from the earth to the heavens amid heavy thunderstorms in Oklahoma City. Mysterious lightning erupting from the ground and hitting into the skies has been observed and recorded by multiple witnesses in Oklahoma City.
Many spectators are perplexed by the strange illumination; most had never witnessed ground-to-sky lightning before. And the phenomenon is thought to be extremely rare, though it does occur in nature on occasion.
Another strange aspect in the story involves lightning strikes that are upside-down. These strikes, which emerge often at the summits of large skyscrapers, have the ability to burst through the clouds and reach atmospheric heights of up to 90 kilometers.
“While ground-to-cloud lightning strikes have been detected since the 1930s, it is only recently, with the increasing deployment of wind turbines, that it has become a major worry.” — Aleksandr Smorgonskiy, a doctorate candidate at the École Polytechnique Fédérale de Lausanne.
In a typical strike, negative ions from the cloud stream downwards and collide with positive ions rushing above. Positive ions flow upwards more faster in an upside-down strike, making an electrical “circuit” with the clouds and high atmosphere.