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 type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

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

A cloud of irregular appearance, composed of irregular cloud fragments.

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