Dark blue cloudy sky

What is Cirrostratus?

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

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Glossary

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

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

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

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

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

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

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.