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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Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.
Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...
Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...
A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...
The branch of science dealing with the laws of motion of air or other gases.
Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...
A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...