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.
Sam Sheppard was an American physician best known as a homicide suspect in his wifeâs murder.
Sam Shepard. For other people with similar names, see Sam Shepard (disambiguation). Samuel Shepard Rogers II, named after his mother RogerI (born November 5, 1943), known professionally as Sam Shepard, is an American playwright, actor, author, screenwriter, and director, whose body of work spans over half a century.