What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.
The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...
An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...
The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...
The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.
The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.
Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...
The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...
A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...