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SLP, 1000-500 hPa Thickness, and 250 hPa Wind Speed

Caption:
+250 hPa wind speed (shaded according to the color bar in m/s).
+Sea-level pressure (black contours every 4 hPa).
+1000-500 hPa thickness (dashed contours every 6 dam).
+Image was generated from 1.0x1.0^o NCEP-GFS data.
+The latitude-longitude lines are every 15^o centered on the central point of 30^oN/90^oE.