Dark blue cloudy sky

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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Glossary

Weather intelligence is technology that provides predictive and actionable insights, allowing businesses to adapt to weather-related...

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

Meteorology is the scientific study of the atmosphere and weather processes. It involves observing, analyzing, and forecasting...