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 core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

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

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

Perhaps you have come across them, maybe you are seeing them for the first time. These clouds, known as wave clouds, resemble...

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

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