What is Arctic Air?
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
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A very cold high pressure that originates over the Arctic Ocean.
The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...
A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.
The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...
Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...
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 polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...
A mass of very cold, dry air that mostly originates over the Arctic Ocean.
A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...
A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...