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The Catatumbo Lightning (Spanish Relámpago del Catatumbo)[1] is an atmospheric phenomenon in Venezuela. It occurs only over the mouth of the Catatumbo River where it empties into Lake Maracaibo. The frequent, powerful flashes of lightning over this relatively small area are considered to be the world's largest single generator of tropospheric ozone.[2]
It originates from a mass of storm clouds at a height of more than 5 km, and occurs during 140 to 160 nights a year, 10 hours per day and up to 280 times per hour. It occurs over and around Lake Maracaibo, typically over the bog area formed where the Catatumbo River flows into the lake.[3]
After appearing continually for centuries, the lightning ceased from January to April 2010, apparently due to drought.[4] This raised fears that it might have been extinguished permanently.[5] The phenomenon reappeared after several months.[6]
