Dark blue cloudy sky

What is Cirrocumulus?

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

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Glossary

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

A type of cloud consisting mostly of small particles such as ice particles.

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...