Clouds movement in afternoon sunset. Cumulonimbus grow explodes air cloud clouds explode cumulus nimbus exploding sky white bomb explosion cloudy fluffy overcast raincloud skies weather burst boom bang sunny over up gloomy storm bubbling bubble of cumulous atmosphere bright forecast high natural majestic boiling wind shrunken shrunking shrinking amazing best very beautiful blue climate events event the end ending before after complete afternoon gloomy sunset background gap filling piece foam froth lather dark black dramatic evaporation environment day day before after daylight time lapse motion movements UHD 3840X2160.