What does observing bright white areas juxtaposed against the dark base of a cloud indicate?

Answer

Strong vertical motion, indicating the cloud is actively growing and may produce heavier precipitation

Bright white sections signify that sunlight is still powerfully reflecting off the tops of the cloud, which suggests vigorous vertical development and ongoing growth.

What does observing bright white areas juxtaposed against the dark base of a cloud indicate?

#Videos

Why Storm Clouds Are Dark - YouTube

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