What does the wind shear forecast indicate in the TAF: WS005/27050KT?

The wind shear forecast indicated by WS005/27050KT specifies the altitude and characteristics of the wind shear present. In the notation, the "WS" signifies wind shear, followed by "005," which represents the altitude in hundreds of feet. Therefore, "005" indicates that the wind shear occurs at 500 feet above the ground level.

The information that follows, "27050KT," denotes the wind direction and speed. Here, "270" indicates the wind is coming from 270 degrees (which corresponds to a west wind), and "50KT" indicates the wind speed of 50 knots.

Understanding this format helps pilots recognize significant changes in wind conditions at specific altitudes during flight, which is crucial for safety and flight planning. The forecast helps in anticipating turbulence and adjusting flight operations accordingly, especially during approaches and landings.