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700 hPa Height and Geostrophic Relative Vorticity and 1000-500 hPa Thickness

Caption:
+700 hPa geopotential height (solid contours every 3 dam).
+1000-500 hPa thickness (dashed contours every 6 dam).
+700 hPa geostrophic relative vorticity [shaded according to the colorbar (10^-5 s^-1)].
+Image was generated from 1.0x1.0^o NCEP-GFS data (unsmoothed).