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Absolutely Unstable Air
An atmospheric condition that exists when the environmental lapse rate is greater than the dry adiabatic lapse rate.
Conditionally Unstable Air
An atmospheric condition that exists when the environmental lapse rate is less than the dry adiabatic lapse rate but greater than the moist adiabatic lapse rate.
Unstable Air
Air that is able to rise easily, and has the potential to produce clouds, rain, and thunderstorms.

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     Page last Modified: 25 June, 2009 1:01 PM