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

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

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

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

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

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...