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Weather Topic: What are Fractus Clouds?
Home - Education - Cloud Types - Fractus Clouds
Next Topic: Hole Punch Clouds
A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud.
They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.
Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated
from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud,
or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.
They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.
Next Topic: Hole Punch Clouds
Weather Topic: What are Mammatus Clouds?
Home - Education - Cloud Types - Mammatus Clouds
Next Topic: Shelf Clouds
A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.
In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.
While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus,
and cirrus clouds. Mammatus clouds warn that severe weather is close.
Next Topic: Shelf Clouds
