OFP Shear Rate values
Does Shear rate (SR) on the OFP indicate when to expect turbulence?
No. The numeric value of Shear Rate represents the change of wind speed per 1000 ft. High values of Shear Rate imply the possibility of turbulence, but do not directly represent it. Shear Rate can be a useful tool when selecting more efficient cruising levels and also may serve as one possible indicator of turbulence. Other factors such as predicted turbulence or convective areas on Significant Weather charts, or proximity to Jet Streams are needed to further validate suspected turbulence. Shear Rate alone, without any other supporting indicator, will not give you a valid representation of expected turbulence.