Epic time lapse of a Cumulonimbus capillatus incus from Prague on June 5th! Textbook pulse / airmass thunderstorm, pushing through the troposphere and hitting the tropopause, spreading into the distinct anvil form. Epic work by Šimon Rogl! pic.twitter.com/Dhw9V7Sg3D

— severe-weather.EU (@severeweatherEU) June 8, 2019