What is an anvil cloud? Well, it’s when the rising updraft of air hits the tropopause, a layer of air above the troposphere, where the air temperature stops lowering with altitude. It's also ...

Flying high over the ground in a plane, a thunderstorm's anvil cloud might be the last thing you want to see, but it's exactly what a group of scientists conducting an airborne mission were ...

Warm air surging upward in the storm encounters a warmer environment and decelerates causing the cloud to spread outward into an anvil-shaped top.

Meteorologist Paul Poteet has the answer. That cloud is popularly known as an anvil cloud, because of its shape. The technical name for this type of cloud is cumulonimbus incus. It is often ...

Afternoon thunderstorms will pepper the Sierra this weekend. Meanwhile the Valley and Foothills will stay sunny and warm.

Drivers on their morning commute were treated to views of a massive, unusually-shaped cloud as the Sun rose over the Houston area Thursday morning. The aptly nicknamed anvil cloud towered over ...

Mammatus clouds generally form in the most unstable cumulonimbus clouds and are typically seen on the underside of the thunderstorm anvil cloud. They often appear with severe thunderstorms ...