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 Sheppard dies. On this day in 1970, Sam Sheppard, a doctor convicted of murdering his pregnant wife in a trial that caused a media frenzy in the 1950s, dies of liver failure.