* High: Cumulus congestus clouds are often tall, rising high into the atmosphere.
* Large, white and gray globular masses: They have a distinctive puffy, rounded shape, with white tops and a grayer base.
* Rolls: While not always rolling, cumulus congestus can sometimes appear to roll or tumble as they develop.
Other possibilities:
* Cumulonimbus: These storm clouds can also be large, white, and gray with a towering structure. However, they are often much taller and more dramatic than cumulus congestus, and often produce heavy rain, thunder, and lightning.
* Altocumulus lenticularis: These lens-shaped clouds can be high and white, and sometimes appear in rows. They are typically associated with mountainous areas.
To be more specific, it would be helpful to know:
* The altitude of the cloud: This would help determine the type of cloud.
* The location: Certain types of clouds are more common in certain locations.
* The time of day: Cloud formations can change throughout the day.
If you can provide more details, I can help you identify the cloud more accurately.
