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

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

A cloud of irregular appearance, composed of irregular cloud fragments.

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

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

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

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...