- Cloud types, Acc: Altocumulus Castellanus from internal convection
- W013552Z
- Cloud types, Acc: a dark but shallow sheet of Altocumulus Castellanus clouds with small cloud elements is seen below a thunderstorm anvil. The Acc sheet has only minimal internal convection because the anvil’s fallout is causing subsidence that limits vertical motion to hold the lower cloud in check.
-
+