NASA astronaut Nichole Ayers has shared an incredible image of a sprite, a rare weather phenomenon that's triggered high ...

Have you ever looked up at the sky and been struck speechless by a cloud so strange it seemed like a message from another ...

Mammatus clouds typically form beneath the anvil of a cumulonimbus cloud. And unlike most other clouds, which develop as a ...

Have you ever felt the air shift and suddenly wondered, “Is a storm brewing overhead?” You’re not alone. The sky has a ...

Shelf cloud: A low, horizontal, sometimes wedge-shaped cloud associated with the leading edge of a thunderstorm. Although these clouds appear ominous, shelf clouds normally do not produce tornadoes.

All clouds form as a result of saturation – that’s when the air contains so much water vapor that it begins producing liquid or ice. Once you understand how certain clouds develop their shapes ...

Clouds form because of moisture in the air, and their different shapes tell you what to expect. I’m a meteorologist, and I’ve been fascinated by weather since I was eight years old.

Puffy to wispy, barely there or dark and menacing, clouds come in many shapes and sizes. Each tells a story about what’s going on in the atmosphere.

Did you see these weird clouds in the York sky this morning? Rare 'breast-shaped' mammatus clouds appeared above our city - here are some great… ...

It has a solid appearance, therefore not wispy, with sharp, well-defined edges. This image shows an anvil shaped Cumulonimbus cloud at sunset in the Caribbean.

On other days I’ve closely monitored wedge shapes of dark water-filled clouds that look ready to build quickly into towering thunderheads with their anvil-shaped tops that pack a serious wallop.