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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A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...
A very cold high pressure that originates over the Arctic Ocean.
A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...
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 term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
The amount of water vapor present in the air, which can affect comfort levels and weather conditions.
Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...
Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.