What is Cirriform?

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

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

A large body of air having similar horizontal temperature and moisture characteristics.

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

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