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

The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A type of cloud consisting mostly of small particles such as ice particles.

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

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

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