Dark blue cloudy sky

What is Precipitation?

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

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Glossary

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

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

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

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

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...