Also known as scarf or cap clouds, these high-flying clouds generally hover over the top of larger cumulonimbus clouds.
Hard to see with the naked eye, this formation is best observed from space. In satellite images, they have a distinct leaf or wheel like pattern that sets them apart from the background.
These clouds are usually formed by waves of air that flow over a raised land feature such as a mountain range.
Sometimes called fire clouds, these dense cumuliform clouds are associated with fires or volcanic activity.
Nine years after first being submitted, this odd cloud formation was finally accepted by the International Cloud Atlas of the World Meteorological Organization in 2017. It was the first addition since 1951. What’s unique about these clouds is that they are undulate (or wave up and down), and quite honestly, they are kind of creepy and ominous. These clouds are typically low-lying and form in wave-like weather fronts.