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 horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

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

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

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

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

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.