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

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

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

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

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

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

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

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...