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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The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

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

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

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

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

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

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