Altocumulus castellanus
Altocumulus castellanus clouds take their name from their resemblance to the turrets of castles and are often a warning of thunderstorms.
the ground. What are Castellanus clouds? Altocumulus Castellanus clouds take their name from a resemblance to the turrets of castles and are often a warning of thunderstorms. How do Castellanus clouds form? Like other cumulus clouds, Castellanus clouds are caused by unstable air heated from below