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

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

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

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

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

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

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

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.