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

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

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

Weather intelligence is technology that provides predictive and actionable insights, allowing businesses to adapt to weather-related...

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

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

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

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

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...