How does a cloud stay cool under direct sunlight—or seem to vanish in infrared? In nature, phenomena like white cumulus ...

Have you ever wondered how ancient people knew when a drought was coming—long before radar, satellites, or climate models? It ...

Cumulonimbus clouds will often rapidly dissipate in the aftermath of a rainstorm, as the dark clouds over Istanbul also reportedly did, with the sun re-emerging after only five minutes of darkness.

Nimbostratus: Dark gray cloud layer diffused by falling rain or snow. It is thick enough to blot out the sun. Other low, ragged clouds often occur beneath this cloud and sometimes merge with its base.

You’re likely thinking of cumulonimbus, one of the low-level clouds. This looks like a classic thunderstorm cloud. It is usually large and dark in color and can signal incoming showers.

A big fat dark cumulonimbus cloud could carry up to six times as much water (say, three grams of water per cubic metre). At the other extreme, ...

Mammatus cloud: A drooping cumulonimbus cloud in its latter stage of development (has a pouch-like appearance). These clouds are often are seen hanging from the anvil of a severe thunderstorm, but ...

Cumulonimbus cloud tops are usually always flattened in the shape of an anvil or plume. Their bottoms are often hazy and dark. Cumulonimbus clouds are thunderstorm clouds, ...

A stock image shows large cumulonimbus clouds lit by a setting sun. A video capturing a spectacular cumulous cloud formation over a beach has gone viral on TikTok.

HIGH POINT, N.C. (WGHP) — When there are dark clouds on the horizon, you know that a storm is coming — but ... An example of a nearly black cloud is a cumulonimbus cloud, or a thunderstorm cloud.

A roll cloud kind of acts like an “accessory” to another cloud, typically a cumulonimbus cloud. “Roll clouds are relatively rare,” according to the NWS glossary.