Lake Maracaibo: The world's top lightning hotspot is over Lake Maracaibo in northwestern Venezuela. Here, nocturnal thunderstorms occur on average about 297 days per year and produce an average of about 232 lightning flashes / square kilometer / year. Local people have called this phenomenon "Relámpago del Catatumbo" (Catatumbo lightning) for hundreds of years. Image by NASA
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