PPGS Lesson 11.5 | Weather: Atmospheric Stability, Latent Heat & Dew Point

Welcome back to Epic Flight Academy’s Private Pilot Ground School!
In this Weather lesson, Certified Flight Instructor Mike Thompson explains atmospheric stability, latent heat, and dew point, three of the most important concepts in aviation meteorology.

You’ll learn how adiabatic heating and cooling influence weather patterns, how latent heat is released or absorbed during condensation and evaporation, and how humidity and dew point determine when and where clouds form. Using examples from FAA Advisory Circulars and real-world visuals, Mike connects each concept to practical flight scenarios every pilot encounters.

By the end, you’ll understand how energy transfer and moisture content directly impact flight conditions, turbulence, and visibility. All of which are critical for flight planning and safety.

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📘 Video Chapters

0:00 – Introduction
1:05 – What Is Adiabatic Heating & Cooling?
2:58 – Figure 12-1 (FAA Advisory Circular on Aviation Weather)
4:48 – Figure 12-2 Explanation
5:43 – Neutral Stability
6:00 – Figure 12-3
7:47 – Absolute Instability
8:00 – Stable and Unstable Air
8:37 – What Is Latent Heat?
9:29 – Latent Heat Transaction Diagram
11:57 – What Is Humidity?
12:43 – What Is Dew Point?
13:15 – What Is Relative Humidity?
13:52 – Figure 3-2
15:40 – Figure 3-3
18:25 – Review and Summary

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This course is taught by Epic Flight Academy's own Mike Thompson. Mike Thompson is the author of "Telling Is Not Teaching", which promotes the idea that the “new school” of teaching that embraces electronic technology cannot sacrifice the “old school” of human relationships because the human brain stills learns in largely the same way that it has for millennia.

"Telling Is Not Teaching": https://www.amazon.com/Telling-Not-Te...

To begin YOUR pilot training, visit our website: https://epicflightacademy.com/pilot-t...

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