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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Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...
An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...
A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.
Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...
The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
An instrument for measuring atmospheric pressure.
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.