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 fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

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

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

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

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