What does a high-contrast structure (brilliant white top casting a very dark shadow) on a storm system typically indicate?

Answer

A very deep cloud with immense vertical development, often signifying strong updrafts.

A high contrast between a brilliant top and a dark, purplish-grey base suggests significant vertical depth and development, which often correlates with strong updrafts and potential severe weather.

What does a high-contrast structure (brilliant white top casting a very dark shadow) on a storm system typically indicate?
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