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

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

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

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

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

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

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

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