***Definition*** :: However, if the magnitude of the wind shear exceeds a critical value, wave motions will begin spontaneously within the shear layer, resulting in a K-H wave. ***Source*** :: [[Aviation Weather Handbook]] ***Additional Resources***: [Wikipedia Page](https://en.wikipedia.org/wiki/Kelvin%E2%80%93Helmholtz_instability), [Kelvin-Helmholtz Formation](https://cloudappreciationsociety.org/kelvin-helmholtz-formation/) ![[Gravity-Shear Waves.jpeg]] #glossary