Dark blue cloudy sky

What is Orographic Lift?

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

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Glossary

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

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

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

The branch of science dealing with the laws of motion of air or other gases.

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

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

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

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

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...