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stormy sky 
A thunderstorm is characterized by lightning, thunder and gusts of wind, usually accompanied by rain showers or hail.
rain
Precipitation of water droplets produced when the air temperature is higher than 0°C.
rainbow
Luminous arc formed of bands of color; during a shower, it is visible in the opposite direction to the Sun.
lightning
Brief but intense luminous phenomenon caused by an electrical discharge between two clouds or between a cloud and the ground.
cloud
The very imposing cloud that generates thunderstorms is the cumulonimbus; it can reach a thickness of 10 km and its base is very dark.
