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

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

Indicates the amount of water the soil can absorb/retain through percolation. This capacity is around 7% in sandy soil and...

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

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

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

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