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 bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

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

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

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

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...