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 body of air having similar horizontal temperature and moisture characteristics.
The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
A type of cloud consisting mostly of small particles such as ice particles.
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A cloud of irregular appearance, composed of irregular cloud fragments.
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
A very cold high pressure that originates over the Arctic Ocean.
The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...