Ключевые слова: abstract, background, bad, beautiful, black, blue, bolt, bolts, bright, bulgaria, city, climate, cloud, danger, dark, dramatic, electric, electrical, electricity, energy, extreme, flare, flash, heavy, horizon, images, landscape, light, lightening, lightning, monsoon, nature, night, outdoor, over, overcast, power, rain, rainstorm, sky, storm, stormy, strike, striking, thunder, thunderbolt, thunderstorm, varna, water, weather,