Dark blue cloudy sky

What is Cirrocumulus?

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

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Glossary

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

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

An instrument for measuring atmospheric pressure.

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

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

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

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

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