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

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

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

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

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

A cloud of irregular appearance, composed of irregular cloud fragments.

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

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

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

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