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Why Is A Cold Air Mass Unstable? [Solved]

A cold air mass flowing away from its source region over a warmer surface will be warmed from below making the air more unstable in its lowest layers. A warm air mass flowing over a colder surface is cooled from below and becomes stable in its lowest layers.

Air Masses

Airmasses objective to learn the four types of

Weather Basics - Air Masses and Stability

Brush up on your weather basics with John King.

What is unstable air and how does it form clouds?

In the first of a new series, Met Office meteorologist Alex Deakin explains with the help of a few simple household items how …