500 hPa Height, 700-300 hPa Thickness, and Term B QG Height Tendency Equation
Caption: +500 hPa geopotential height (solid contours every 6 dam). +700-300 hPa thickness (dashed contours every 6 dam). +Term B of the QG Height Tendency equation evaluated at 500 hPa [shaded according to the colorbar (10-13 s-3)]. Cold (warm) colors denote regions of forcing for 500 hPa geopotential height falls (rises). +Image was generated from smoothed 1.0x1.0o NCEP-GFS data.