a thunderstorm that occurred in a sky filled with dark blue cumulonimbus clouds

Background, Blue, Sky, Cloudy, Nature, Rain, Weather, Stormy, Landscape, View, Clear, Light, Sunlight, Sunset, Space, Earth, Night, Cloud, Bright, Wind, Air, Heaven, Panorama, Black, Dramatic, Dark, Danger, Color, Climate, Smoke, Lightning, Power, Thunder, Cloudscape, Storm, Thunderstorm, Electricity, Scene, Nobody, Heavy, Grey, Gray, Idyllic, Disaster, Ominous, Meteorology, Hurricane, Tornado, Gale