Frontal Analysis at 12z, 09/17, along with Eta 925 mb Wind, Total Deformation, and Temps

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The main ingredients of frontogenesis, total deformation (shaded), strong temperature gradients (temperatures are the dashed orange contours), and convergence (wind barbs are light blue) are all maximized along and just north of the surface frontal boundary across southeastern OH. These are all Eta 0-hr fields at 925 mb, valid at 12z, 9/17/04.