When reporting on a thunderstorm, you might hear your local weatherman use what tool-related term to describe the storm's cumulonimbus cloud?

An anvil cloud signifies that the cloud top has risen so high into the atmosphere due to convection, that it's reached the limit of how high it can go. At that point, the top will typically flatten out and resemble the smooth surface of an anvil.

Asked by Tom Cohen · Last updated 5 years ago · 4.1K views