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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The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...
A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...