In mature thunderstorms and large storm complexes, you may notice thunder that sounds louder, lasts longer and rattles buildings for miles around. It’s likely that thunder is a result of a positively ...

Towering, dense clouds with a flat, anvil-shaped top ... Often forms along the leading edge of a storm front or gust front. Indicates a change in wind direction and can precede severe weather.

When the anvil of a cumulonimbus cloud starts to spread ... Shelf clouds originate from the bottom of a storm cloud. Storms have updrafts and downdrafts. With an updraft, warm air is pulled ...

At the top of the storm, the air diverges, which is why you get that anvil shape in some of the ... These repetitive pouches are your mammatus clouds. Check out a couple pictures that were sent ...

These flat clouds earned their nickname because they make the entire storm look like a blacksmith’s anvil. Anvils commonly fill the skies on a stormy day, sometimes stretching for dozens of ...

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

typically beneath the anvil clouds. They often form in groups that can extend hundreds of miles in any direction, and while they are not necessarily an indication of a severe storm, they do ...

Prior to severe thunderstorms in Cumberland and Sampson counties Sunday evening, some of you saw a unique cloud formation. Mammatus clouds will sometimes form within the anvil of a thunderstorm.