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 term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

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

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

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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 scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...