Dark blue cloudy sky

What is Trough?

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

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Glossary

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

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

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

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

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

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

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

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

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...