Polar Vortex

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs in both the stratosphere and troposphere at high latitudes, close to the poles. It is formed by the rotation of cold, dense air.

Glossary

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

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...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

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