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 line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.
The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.
The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...