Added on: June 29, 2011
Whether you are on the ground or in the air, the phrase "wind shear" should get the immediate attention of every pilot. How about when it appears in a terminal aerodrome forecast (TAF)? A pilot hears the term "wind shear" and immediately equates this with thunderstorms and turbulence. It’s a common misconception, but non-convective low level wind shear as it appears in a TAF is not usually a forecast for turbulence.Probably the most poorly understood forecast among pilots is one for non-convective low-level wind shear (LLWS). In fact, in most cases when this is forecast, the air is relatively smooth. So what is non-convective low-level wind shear and why isn’t it typically turbulent? In this workshop we will explore how atmospheric stability plays a key role making this form of wind shear non-turbulent.