<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000099'><div>Hi,</div><div>I want to plot magnitude of shear for each ensemble member by taking average of the difference in wind velocities between the 850 hPa and 250hPa levels at every grid point that is between 200 and 500km from the surface center for a tropical cyclone.</div><div>Domain used is moving nest with 3km resolution.<br></div><div><br></div><div>Could you please help me with the ncl script to do the area average of wind shear magnitude between 200 and 500km from surface center.</div><div><br></div><div>Regards</div><div>Pavani<br></div></div></body></html>