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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The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.
In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...
Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...
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 tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...
A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...
Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.