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 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 large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...
A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...
Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...
A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...