What is the shape of a culumbus cloud?

Answer 1

They are puffy, like cotton balls. Not in any any particular shape, just round(ish).
Gigantic white towers of cloud with dark grey bases, sometimes with flattened tops appearing like a pancake or an anvil
A cumulonimbus formation is tall and billowing, with an anvil-shaped top.
Cumulonimbus clouds have flat tops and bottoms, giving them an anvil-like appearance.
stormy weather, most likely low pressures system, and gusty... and occurs during a cold front. :D

Answer 2

It looks all white and puffy. It is like a cotton ball or popcorn.

Answer 3

puffy like a cotton ball but they have a flat bottom

Answer 4

it looks like dark gray clouds stormy weather

Answer 5

These clouds form puffy and appear to rise up from a flat bottom.

Comment: That's "Cumulus" clouds, of course.

Answer 6

gray gray