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 formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

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

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

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.