Why moist air less dense

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Airline Partners. San Diego, CA. San Marcos, TX. Dallas, TX. Email Us. Contact Us. Call Now Understanding Air Density and its Effects. Fly with Excellence. Train with Coast. Cirrus Flight Training. Request More Information. When dry, dense air moves under moist, light air, it lifts the moist air and makes the right conditions for thunderstorms.

This "dry line" area -- where dry air pushes up humid air -- is seen right where you'd expect it: in the Tornado Alley of the southern-central United States [source: Schrage ].

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Posted on July 17, by WeatherGuys Editor.