What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...
A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...
A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...
Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...
Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...
The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...
The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...