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 occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

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

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

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

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...