These WX SMARTS articles typically focus on big weather makers like fronts, systems, thunderstorms, and the weather they all produce. But atmospheric stability is a less-talked-about process that works in the background and “primes” the atmosphere in many ways. While you might dodge thunderstorms and fly past frontal zones, stability (and the lack of it) is embedded in all parts of the atmosphere. You can’t escape it even in clear weather.
While stability and instability don’t always cause weather, they leave a mark on even VFR forecasts in many subtle ways, and they influence everything from wind gusts to cloud layers. Even in forecast models, there are always complex equations that factor in stability. Stability is important enough that an entire chapter is dedicated to it in the FAA’s Aviation Meteorology circular. For meteorologists, a chart known as the Skew-T diagram is used every day at forecast centers. It’s literally a worksheet that helps forecasters visualize the day’s stability and make calculations on it.
