What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.
A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...
Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.
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...
A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...
The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....