What is Frost?
The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential damage to plants and crops.
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A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...
A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
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 condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...
The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.
A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...
Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...
A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.