Calculations for Vertical Wind Shear. — Calculations for vertical shear are best done on a plotted Skew T, Log P Diagram. First, calculate the change in height (in feet) between plotted windreports, using your height scale. You may enter these in pencil between your wind plots. Then, calculate the actual change in wind speed between your plotted reports and enter these values between the plotted reports. Multiplying your calculated change in wind speed by 1,000 (feet) and dividing the result by your calculated change in height will result in the vertical wind shear per 1,000 feet. This result may be compared with table 6-1-2 to determine the expected turbulence.