Causes of Bile Vomit. Yellow to green vomit should not be immediately considered as bile vomitus. Foods and drinks that can color the gastric contents in this manner need to be excluded. The causes below are not a complete list of conditions resulting in bile vomitus.
Cumulonimbus is a type of cloud, similar to cumulus, that extends to a great height and is associated with thunderstorms. [technical] COBUILD Advanced English Dictionary.
Cumulonimbus Clouds. Cumulonimbus clouds are much larger and more vertically developed than cumulus clouds which form in a more stable atmosphere. They can exist as individual towers or form a line of towers called a squall line often present at cold fronts. Underneath they are dark and menacing.