What is Alto?
A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus and altocumulus. These clouds are often associated with changing weather patterns.
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Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...
Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...
An instrument for measuring atmospheric pressure.
An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...
An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....
A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...
Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...