What is Relative Humidity?
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
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A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
A type of cloud consisting mostly of small particles such as ice particles.
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...
Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...